Dump all claims of ID token to debug log (#68 )

* Dump all claims of ID token to debug log * Add dump when a user already has a token
Fix error of go get and remove golint (#69 )
2026-02-28 16:00:19 +00:00 · 2019-04-19 10:47:32 +09:00 · 2019-04-19 10:46:07 +09:00
194 changed files with 3136 additions and 13275 deletions
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -0,0 +1,38 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:1.12.3
+    steps:
+      - run: |
+          mkdir -p ~/bin
+          echo 'export PATH="$HOME/bin:$PATH"' >> $BASH_ENV
+      - run: |
+          curl -L -o ~/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v1.14.0/bin/linux/amd64/kubectl
+          chmod +x ~/bin/kubectl
+      - run: |
+          curl -L -o ~/bin/ghcp https://github.com/int128/ghcp/releases/download/v1.3.0/ghcp_linux_amd64
+          chmod +x ~/bin/ghcp
+      - run: |
+          go get -v \
+            github.com/int128/goxzst \
+            github.com/tcnksm/ghr
+      - checkout
+      # workaround for https://github.com/golang/go/issues/27925
+      - run: sed -e '/^k8s.io\/client-go /d' -i go.sum
+      - run: make check
+      - run: make run
+      - run: |
+          if [ "$CIRCLE_TAG" ]; then
+            make release
+          fi
+
+workflows:
+  version: 2
+  all:
+    jobs:
+      - build:
+          context: open-source
+          filters:
+            tags:
+              only: /.*/
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: [int128] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -1,20 +0,0 @@
---
-name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: bug
-assignees: ''
-
---
-
-## Describe the issue
-A clear and concise description of what the issue is.
-
-## To reproduce
-A console log or steps to reproduce the issue.
-
-## Your environment
- OS: e.g. macOS
- kubelogin version: e.g. v1.19
- kubectl version: e.g. v1.19
- OpenID Connect provider: e.g. Google
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -1,15 +0,0 @@
---
-name: Feature request
-about: Suggest an idea for this project
-title: ''
-labels: enhancement
-assignees: ''
-
---
-
-## Purpose of the feature (why)
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
-A clear and concise description of what you want to happen.
-
-## Your idea (how)
-A clear and concise description of any alternative solutions or features you've considered.
--- a/.github/ISSUE_TEMPLATE/question.md
+++ b/.github/ISSUE_TEMPLATE/question.md
@@ -1,20 +0,0 @@
---
-name: Question
-about: Feel free to ask a question
-title: ''
-labels: question
-assignees: ''
-
---
-
-## Describe the question
-A clear and concise description of what the issue is.
-
-## To reproduce
-A console log or steps to reproduce the issue.
-
-## Your environment
- OS: e.g. macOS
- kubelogin version: e.g. v1.19
- kubectl version: e.g. v1.19
- OpenID Connect provider: e.g. Google
--- a/.github/renovate.json5
+++ b/.github/renovate.json5
@@ -1,11 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "github>int128/renovate-base",
-    "github>int128/go-renovate-config#v1.6.0",
-    "github>int128/go-renovate-config:go-directive#v1.6.0",
-    "github>int128/go-renovate-config:github-actions#v1.6.0",
-    "github>int128/go-renovate-config:kubernetes#v1.6.0",
-    "github>int128/go-renovate-config:kustomization-github-releases#v1.6.0",
-  ],
-}
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -1,76 +0,0 @@
-name: docker
-
-on:
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/docker.yaml
-      - pkg/**
-      - go.*
-      - Dockerfile
-      - Makefile
-  push:
-    branches:
-      - master
-    paths:
-      - .github/workflows/docker.yaml
-      - pkg/**
-      - go.*
-      - Dockerfile
-      - Makefile
-    tags:
-      - v*
-
-jobs:
-  build-linux-amd64:
-    uses: int128/docker-build-workflow/.github/workflows/build.yaml@v1
-    with:
-      platforms: linux/amd64
-      flavor: latest=false,suffix=-linux-amd64
-
-  build-linux-arm64:
-    uses: int128/docker-build-workflow/.github/workflows/build.yaml@v1
-    with:
-      platforms: linux/arm64
-      flavor: latest=false,suffix=-linux-arm64
-
-  build-linux-ppc64le:
-    uses: int128/docker-build-workflow/.github/workflows/build.yaml@v1
-    with:
-      platforms: linux/ppc64le
-      flavor: latest=false,suffix=-linux-ppc64le
-
-  build:
-    needs:
-      - build-linux-amd64
-      - build-linux-arm64
-      - build-linux-ppc64le
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    outputs:
-      image-uri: ghcr.io/${{ github.repository }}@${{ steps.build.outputs.digest }}
-    steps:
-      - uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - uses: docker/metadata-action@v5
-        id: metadata
-        with:
-          images: ghcr.io/${{ github.repository }}
-      - uses: int128/docker-manifest-create-action@v2
-        id: build
-        with:
-          tags: ${{ steps.metadata.outputs.tags }}
-          sources: |
-            ghcr.io/${{ github.repository }}@${{ needs.build-linux-amd64.outputs.digest }}
-            ghcr.io/${{ github.repository }}@${{ needs.build-linux-arm64.outputs.digest }}
-            ghcr.io/${{ github.repository }}@${{ needs.build-linux-ppc64le.outputs.digest }}
-
-  test:
-    needs: build
-    runs-on: ubuntu-latest
-    steps:
-      - run: docker run --rm '${{ needs.build.outputs.image-uri }}' --help
--- a/.github/workflows/go.yaml
+++ b/.github/workflows/go.yaml
@@ -1,74 +0,0 @@
-name: go
-
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - .github/workflows/go.yaml
-      - pkg/**
-      - integration_test/**
-      - mocks/**
-      - tools/**
-      - go.*
-    tags:
-      - v*
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/go.yaml
-      - pkg/**
-      - integration_test/**
-      - mocks/**
-      - tools/**
-      - go.*
-
-jobs:
-  check:
-    uses: int128/go-workflows/.github/workflows/check.yaml@v0.4.0
-    with:
-        go-version-file: go.mod
-        cache-dependency-path: go.sum
-        golangci-lint-version: v1.61.0
-
-  test:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache-dependency-path: go.sum
-      - run: go test -v -race ./pkg/...
-
-  integration-test:
-    strategy:
-      fail-fast: false
-      matrix:
-        os:
-          - ubuntu-latest
-          - macos-latest
-          - windows-latest
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache-dependency-path: go.sum
-      - run: go test -v -race ./integration_test/...
-
-  generate:
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: tools/go.mod
-          cache-dependency-path: tools/go.sum
-      - run: make generate
-      - uses: int128/update-generated-files-action@v2
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -1,75 +0,0 @@
-name: release
-
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - .github/workflows/release.yaml
-      - pkg/**
-      - go.*
-    tags:
-      - v*
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/release.yaml
-      - pkg/**
-      - go.*
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        platform:
-          - runs-on: ubuntu-latest
-            GOOS: linux
-            GOARCH: amd64
-            CGO_ENABLED: 0 # https://github.com/int128/kubelogin/issues/567
-          - runs-on: ubuntu-latest
-            GOOS: linux
-            GOARCH: arm64
-          - runs-on: ubuntu-latest
-            GOOS: linux
-            GOARCH: arm
-          - runs-on: ubuntu-latest
-            GOOS: linux
-            GOARCH: ppc64le
-          - runs-on: macos-latest
-            GOOS: darwin
-            GOARCH: amd64
-            CGO_ENABLED: 1 # https://github.com/int128/kubelogin/issues/249
-          - runs-on: macos-latest
-            GOOS: darwin
-            GOARCH: arm64
-            CGO_ENABLED: 1 # https://github.com/int128/kubelogin/issues/762
-          - runs-on: windows-latest
-            GOOS: windows
-            GOARCH: amd64
-    runs-on: ${{ matrix.platform.runs-on }}
-    env:
-      GOOS: ${{ matrix.platform.GOOS }}
-      GOARCH: ${{ matrix.platform.GOARCH }}
-      CGO_ENABLED: ${{ matrix.platform.CGO_ENABLED }}
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache-dependency-path: go.sum
-      - run: go build -ldflags '-X main.version=${{ github.ref_name }}'
-      - uses: int128/go-release-action@v2
-        with:
-          binary: kubelogin
-
-  publish:
-    if: github.ref_type == 'tag'
-    needs:
-      - build
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    steps:
-      - uses: actions/checkout@v4
-      - uses: rajatjindal/krew-release-bot@v0.0.46
--- a/.github/workflows/system-test.yaml
+++ b/.github/workflows/system-test.yaml
@@ -1,42 +0,0 @@
-name: system-test
-
-on:
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/system-test.yaml
-      - system_test/**
-      - pkg/**
-      - go.*
-  push:
-    branches:
-      - master
-    paths:
-      - .github/workflows/system-test.yaml
-      - system_test/**
-      - pkg/**
-      - go.*
-
-jobs:
-  system-test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-          cache-dependency-path: go.sum
-
-      # for certutil
-      # https://packages.ubuntu.com/xenial/libnss3-tools
-      - run: sudo apt update
-      - run: sudo apt install -y libnss3-tools
-      - run: mkdir -p ~/.pki/nssdb
-
-      - run: echo '127.0.0.1 dex-server' | sudo tee -a /etc/hosts
-
-      - run: make -C system_test -j3
-
-      - run: make -C system_test logs
-        if: always()
--- a/.gitignore
+++ b/.gitignore
@@ -1,12 +1,5 @@
 /.idea
-
-/tools/bin
-
-/acceptance_test/output/
-
-/coverage.out
-
+/dist
 /kubelogin
 /kubectl-oidc_login
-/kubelogin_*.zip
-/kubelogin_*.zip.sha256
+/.kubeconfig
--- a/.krew.yaml
+++ b/.krew.yaml
@@ -1,62 +0,0 @@
-apiVersion: krew.googlecontainertools.github.com/v1alpha2
-kind: Plugin
-metadata:
-  name: oidc-login
-spec:
-  homepage: https://github.com/int128/kubelogin
-  shortDescription: Log in to the OpenID Connect provider
-  description: |
-    This is a kubectl plugin for Kubernetes OpenID Connect (OIDC) authentication.
-
-    ## Credential plugin mode
-    kubectl executes oidc-login before calling the Kubernetes APIs.
-    oidc-login automatically opens the browser and you can log in to the provider.
-    After authentication, kubectl gets the token from oidc-login and you can access the cluster.
-    See https://github.com/int128/kubelogin#credential-plugin-mode for more.
-
-    ## Standalone mode
-    Run `kubectl oidc-login`.
-    It automatically opens the browser and you can log in to the provider.
-    After authentication, it writes the token to the kubeconfig and you can access the cluster.
-    See https://github.com/int128/kubelogin#standalone-mode for more.
-
-  caveats: |
-    You need to setup the OIDC provider, Kubernetes API server, role binding and kubeconfig.
-  version: {{ .TagName }}
-  platforms:
-  - bin: kubelogin
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_linux_amd64.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: linux
-        arch: amd64
-  - bin: kubelogin
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_linux_arm64.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: linux
-        arch: arm64
-  - bin: kubelogin
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_linux_arm.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: linux
-        arch: arm
-  - bin: kubelogin
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_darwin_amd64.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: darwin
-        arch: amd64
-  - bin: kubelogin
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_darwin_arm64.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: darwin
-        arch: arm64
-  - bin: kubelogin.exe
-    {{ addURIAndSha "https://github.com/int128/kubelogin/releases/download/{{ .TagName }}/kubelogin_windows_amd64.zip" .TagName }}
-    selector:
-      matchLabels:
-        os: windows
-        arch: amd64
--- a/.mockery.yaml
+++ b/.mockery.yaml
@@ -1,11 +0,0 @@
-outpkg: "{{.PackageName}}_mock"
-dir: "mocks/{{.PackagePath}}_mock"
-
-packages:
-  github.com/int128/kubelogin:
-    config:
-      all: true
-      recursive: true
-  io:
-    interfaces:
-      Closer:
--- a/12
+++ b/12
@@ -1,12 +0,0 @@
-FROM golang:1.23 as builder
-
-WORKDIR /builder
-COPY go.* .
-RUN go mod download
-COPY main.go .
-COPY pkg pkg
-RUN go build
-
-FROM gcr.io/distroless/base-debian12
-COPY --from=builder /builder/kubelogin /
-ENTRYPOINT ["/kubelogin"]
--- a/42
+++ b/42
@@ -1,9 +1,35 @@
-.PHONY: all
-all:
+TARGET := kubelogin
+TARGET_PLUGIN := kubectl-oidc_login
+CIRCLE_TAG ?= HEAD
+LDFLAGS := -X main.version=$(CIRCLE_TAG)

-.PHONY: generate
-generate:
-	$(MAKE) -C tools
-	./tools/bin/wire ./pkg/di
-	rm -fr mocks/
-	./tools/bin/mockery
+.PHONY: check run release clean
+
+all: $(TARGET)
+
+check:
+	go vet
+	$(MAKE) -C adaptors_test/keys/testdata
+	go test -v -race ./...
+
+$(TARGET): $(wildcard *.go)
+	go build -o $@ -ldflags "$(LDFLAGS)"
+
+$(TARGET_PLUGIN): $(TARGET)
+	ln -sf $(TARGET) $@
+
+run: $(TARGET_PLUGIN)
+	-PATH=.:$(PATH) kubectl oidc-login --help
+
+dist:
+	VERSION=$(CIRCLE_TAG) goxzst -d dist/gh/ -o "$(TARGET)" -t "kubelogin.rb oidc-login.yaml" -- -ldflags "$(LDFLAGS)"
+	mv dist/gh/kubelogin.rb dist/
+
+release: dist
+	ghr -u "$(CIRCLE_PROJECT_USERNAME)" -r "$(CIRCLE_PROJECT_REPONAME)" "$(CIRCLE_TAG)" dist/gh/
+	ghcp -u "$(CIRCLE_PROJECT_USERNAME)" -r "homebrew-$(CIRCLE_PROJECT_REPONAME)" -m "$(CIRCLE_TAG)" -C dist/ kubelogin.rb
+
+clean:
+	-rm $(TARGET)
+	-rm $(TARGET_PLUGIN)
+	-rm -r dist/
--- a/README.md
+++ b/README.md
@@ -1,139 +1,140 @@
-# kubelogin [![go](https://github.com/int128/kubelogin/actions/workflows/go.yaml/badge.svg)](https://github.com/int128/kubelogin/actions/workflows/go.yaml) [![Go Report Card](https://goreportcard.com/badge/github.com/int128/kubelogin)](https://goreportcard.com/report/github.com/int128/kubelogin)
+# kubelogin [![CircleCI](https://circleci.com/gh/int128/kubelogin.svg?style=shield)](https://circleci.com/gh/int128/kubelogin)

-This is a kubectl plugin for [Kubernetes OpenID Connect (OIDC) authentication](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#openid-connect-tokens), also known as `kubectl oidc-login`.
-
-Here is an example of Kubernetes authentication with the Google Identity Platform:
-
-<img alt="screencast" src="https://user-images.githubusercontent.com/321266/85427290-86e43700-b5b6-11ea-9e97-ffefd736c9b7.gif" width="572" height="391">
-
-Kubelogin is designed to run as a [client-go credential plugin](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#client-go-credential-plugins).
-When you run kubectl, kubelogin opens the browser and you can log in to the provider.
-Then kubelogin gets a token from the provider and kubectl access Kubernetes APIs with the token.
-Take a look at the diagram:
-
-![Diagram of the credential plugin](docs/credential-plugin-diagram.svg)
+This is a kubectl plugin for [Kubernetes OpenID Connect (OIDC) authentication](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#openid-connect-tokens).
+It gets a token from the OIDC provider and writes it to the kubeconfig.


 ## Getting Started

-### Setup
+You need to setup the following components:

-Install the latest release from [Homebrew](https://brew.sh/), [Krew](https://github.com/kubernetes-sigs/krew), [Chocolatey](https://chocolatey.org/packages/kubelogin) or [GitHub Releases](https://github.com/int128/kubelogin/releases).
+- OIDC provider
+- Kubernetes API server
+- Role for your group or user
+- kubectl authentication
+
+You can install the latest release from [Homebrew](https://brew.sh/), [Krew](https://github.com/kubernetes-sigs/krew) or [GitHub Releases](https://github.com/int128/kubelogin/releases) as follows:

 ```sh
-# Homebrew (macOS and Linux)
-brew install int128/kubelogin/kubelogin
+# Homebrew
+brew tap int128/kubelogin
+brew install kubelogin

-# Krew (macOS, Linux, Windows and ARM)
+# Krew
 kubectl krew install oidc-login

-# Chocolatey (Windows)
-choco install kubelogin
+# GitHub Releases
+curl -LO https://github.com/int128/kubelogin/releases/download/v1.9.1/kubelogin_linux_amd64.zip
+unzip kubelogin_linux_amd64.zip
+ln -s kubelogin kubectl-oidc_login
 ```

-If you install via GitHub releases, you need to put the `kubelogin` binary on your path under the name `kubectl-oidc_login` so that the [kubectl plugin mechanism](https://kubernetes.io/docs/tasks/extend-kubectl/kubectl-plugins/) can find it when you invoke `kubectl oidc-login`. The other install methods do this for you.
+After initial setup or when the token has been expired, just run:

-You need to set up the OIDC provider, cluster role binding, Kubernetes API server and kubeconfig.
-The kubeconfig looks like:
-
-```yaml
-users:
- name: oidc
-  user:
-    exec:
-      apiVersion: client.authentication.k8s.io/v1beta1
-      command: kubectl
-      args:
-      - oidc-login
-      - get-token
-      - --oidc-issuer-url=ISSUER_URL
-      - --oidc-client-id=YOUR_CLIENT_ID
-      - --oidc-client-secret=YOUR_CLIENT_SECRET
+```
+% kubelogin
+Using current-context: hello.k8s.local
+Open http://localhost:8000 for authorization
+Got a token for subject 0123456789 (valid until 2019-04-12 11:00:49 +0900 JST)
+Updated ~/.kube/config
 ```

-See [setup guide](docs/setup.md) for more.
+or run as a kubectl plugin:
+
+```
+% kubectl oidc-login
+```
+
+It opens the browser and you can log in to the provider.
+After authentication, it gets an ID token and refresh token and writes them to the kubeconfig.
+
+For more, see the following documents:
+
+- [Getting Started with Keycloak](docs/keycloak.md)
+- [Getting Started with Google Identity Platform](docs/google.md)
+- [Team Operation](docs/team_ops.md)


-### Run
+## Configuration

-Run kubectl.
+This supports the following options.
+
+```
+  kubelogin [OPTIONS]
+
+Application Options:
+      --kubeconfig=               Path to the kubeconfig file (default: ~/.kube/config) [$KUBECONFIG]
+      --listen-port=              Port used by kubelogin to bind its webserver (default: 8000) [$KUBELOGIN_LISTEN_PORT]
+      --insecure-skip-tls-verify  If set, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
+                                  [$KUBELOGIN_INSECURE_SKIP_TLS_VERIFY]
+      --skip-open-browser         If set, it does not open the browser on authentication. [$KUBELOGIN_SKIP_OPEN_BROWSER]
+  -v, --v=                        If set to 1 or greater, show debug log (default: 0)
+
+Help Options:
+  -h, --help        Show this help message
+```
+
+This also supports the following keys of `auth-provider` in kubeconfig.
+See [kubectl authentication](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-kubectl).
+
+Key | Direction | Value
+----|-----------|------
+`idp-issuer-url`                  | Read (Mandatory) | Issuer URL of the provider.
+`client-id`                       | Read (Mandatory) | Client ID of the provider.
+`client-secret`                   | Read (Mandatory) | Client Secret of the provider.
+`idp-certificate-authority`       | Read | CA certificate path of the provider.
+`idp-certificate-authority-data`  | Read | Base64 encoded CA certificate of the provider.
+`extra-scopes`                    | Read | Scopes to request to the provider (comma separated).
+`id-token`                        | Write | ID token got from the provider.
+`refresh-token`                   | Write | Refresh token got from the provider.
+
+
+### Kubeconfig path
+
+You can set the environment variable `KUBECONFIG` to point the config file.
+Default to `~/.kube/config`.

 ```sh
-kubectl get pods
+export KUBECONFIG="$PWD/.kubeconfig"
 ```

-Kubectl executes kubelogin before calling the Kubernetes APIs.
-Kubelogin automatically opens the browser, and you can log in to the provider.

-<img src="docs/keycloak-login.png" alt="keycloak-login" width="455" height="329">
+### Extra scopes

-After authentication, kubelogin returns the credentials to kubectl and kubectl then calls the Kubernetes APIs with these credentials.
+You can set extra scopes to request to the provider by `extra-scopes` in the kubeconfig.

-```
-% kubectl get pods
-Open http://localhost:8000 for authentication
-NAME                          READY   STATUS    RESTARTS   AGE
-echoserver-86c78fdccd-nzmd5   1/1     Running   0          26d
+```sh
+kubectl config set-credentials keycloak --auth-provider-arg extra-scopes=email
 ```

-Kubelogin writes the ID token and refresh token to the token cache file.
+Note that kubectl does not accept multiple scopes and you need to edit the kubeconfig as like:

-If the cached ID token is valid, kubelogin just returns it.
-If the cached ID token has expired, kubelogin will refresh the token using the refresh token.
-If the refresh token has expired, kubelogin will perform re-authentication (you will have to login via browser again).
-
-
-### Troubleshoot
-
-You can log out by removing the token cache directory (default `~/.kube/cache/oidc-login`).
-Kubelogin will ask you to login via browser again if the token cache file does not exist i.e., it starts with a clean slate
-
-You can dump claims of an ID token by `setup` command.
-
-```console
-% kubectl oidc-login setup --oidc-issuer-url https://accounts.google.com --oidc-client-id REDACTED --oidc-client-secret REDACTED
-...
-You got a token with the following claims:
-
-{
-  "sub": "********",
-  "iss": "https://accounts.google.com",
-  "aud": "********",
-  ...
-}
+```sh
+kubectl config set-credentials keycloak --auth-provider-arg extra-scopes=SCOPES
+sed -i '' -e s/SCOPES/email,profile/ $KUBECONFIG
 ```

-You can increase the log level by `-v1` option.

-```yaml
-users:
- name: oidc
-  user:
-    exec:
-      apiVersion: client.authentication.k8s.io/v1beta1
-      command: kubectl
-      args:
-      - oidc-login
-      - get-token
-      - -v1
+### CA Certificates
+
+You can set your self-signed certificates for the OIDC provider (not Kubernetes API server) by `idp-certificate-authority` and `idp-certificate-authority-data` in the kubeconfig.
+
+```sh
+kubectl config set-credentials keycloak \
+  --auth-provider-arg idp-certificate-authority=$HOME/.kube/keycloak-ca.pem
 ```

-You can verify kubelogin works with your provider using [acceptance test](acceptance_test).
+If kubelogin could not parse the certificate, it shows a warning and skips it.


-## Docs
+### HTTP Proxy

- [Setup guide](docs/setup.md)
- [Usage and options](docs/usage.md)
- [Standalone mode](docs/standalone-mode.md)
- [System test](system_test)
- [Acceptance_test for identity providers](acceptance_test)
+You can set the following environment variables if you are behind a proxy: `HTTP_PROXY`, `HTTPS_PROXY` and `NO_PROXY`.
+See also [net/http#ProxyFromEnvironment](https://golang.org/pkg/net/http/#ProxyFromEnvironment).


 ## Contributions

 This is an open source software licensed under Apache License 2.0.
-Feel free to open issues and pull requests for improving code and documents.

-This software is developed with [GoLand](https://www.jetbrains.com/go/) licensed for open source development.
-Special thanks for the support.
+Feel free to open issues and pull requests for improving code and documents.
--- a/acceptance_test/Makefile
+++ b/acceptance_test/Makefile
@@ -1,42 +0,0 @@
-CLUSTER_NAME := kubelogin-acceptance-test
-OUTPUT_DIR := $(CURDIR)/output
-
-KUBECONFIG := $(OUTPUT_DIR)/kubeconfig.yaml
-export KUBECONFIG
-
-# create a Kubernetes cluster
-.PHONY: cluster
-cluster:
-	# create a cluster
-	mkdir -p $(OUTPUT_DIR)
-	sed -e "s|OIDC_ISSUER_URL|$(OIDC_ISSUER_URL)|" -e "s|OIDC_CLIENT_ID|$(OIDC_CLIENT_ID)|" cluster.yaml > $(OUTPUT_DIR)/cluster.yaml
-	kind create cluster --name $(CLUSTER_NAME) --config $(OUTPUT_DIR)/cluster.yaml
-	# set up access control
-	kubectl create clusterrole cluster-readonly --verb=get,watch,list --resource='*.*'
-	kubectl create clusterrolebinding cluster-readonly --clusterrole=cluster-readonly --user=$(YOUR_EMAIL)
-	# set up kubectl
-	kubectl config set-credentials oidc \
-		--exec-api-version=client.authentication.k8s.io/v1beta1 \
-		--exec-command=$(CURDIR)/../kubelogin \
-		--exec-arg=get-token \
-		--exec-arg=--token-cache-dir=$(OUTPUT_DIR)/token-cache \
-		--exec-arg=--oidc-issuer-url=$(OIDC_ISSUER_URL) \
-		--exec-arg=--oidc-client-id=$(OIDC_CLIENT_ID) \
-		--exec-arg=--oidc-client-secret=$(OIDC_CLIENT_SECRET) \
-		--exec-arg=--oidc-extra-scope=email
-	# switch the default user
-	kubectl config set-context --current --user=oidc
-
-# clean up the resources
-.PHONY: clean
-clean:
-	-rm -r $(OUTPUT_DIR)
-.PHONY: delete-cluster
-delete-cluster:
-	kind delete cluster --name $(CLUSTER_NAME)
-
-.PHONY: check
-check:
-	docker version
-	kind version
-	kubectl version --client
--- a/acceptance_test/README.md
+++ b/acceptance_test/README.md
@@ -1,75 +0,0 @@
-# kubelogin/acceptance_test
-
-This is a manual test for verifying Kubernetes OIDC authentication with your OIDC provider.
-
-
-## Purpose
-
-This test checks the following points:
-
-1. You can set up your OIDC provider using [setup guide](../docs/setup.md).
-1. The plugin works with your OIDC provider.
-
-
-## Getting Started
-
-### Prerequisite
-
-You need to build the plugin into the parent directory.
-
-```sh
-make -C ..
-```
-
-You need to set up your provider.
-See [setup guide](../docs/setup.md) for more.
-
-You need to install the following tools:
-
- Docker
- Kind
- kubectl
-
-You can check if the tools are available.
-
-```sh
-make check
-```
-
-### 1. Create a cluster
-
-Create a cluster.
-For example, you can create a cluster with Google account authentication.
-
-```sh
-make OIDC_ISSUER_URL=https://accounts.google.com \
-  OIDC_CLIENT_ID=REDACTED.apps.googleusercontent.com \
-  OIDC_CLIENT_SECRET=REDACTED \
-  YOUR_EMAIL=REDACTED@gmail.com
-```
-
-It will do the following steps:
-
-1. Create a cluster.
-1. Set up access control. It allows read-only access from your email address.
-1. Set up kubectl to enable the plugin.
-
-You can change kubectl configuration in generated `output/kubeconfig.yaml`.
-
-### 2. Run kubectl
-
-Make sure you can log in to the provider and access the cluster.
-
-```console
-% export KUBECONFIG=$PWD/output/kubeconfig.yaml
-% kubectl get pods -A
-```
-
-### Clean up
-
-To delete the cluster and generated files:
-
-```sh
-make delete-cluster
-make clean
-```
--- a/acceptance_test/cluster.yaml
+++ b/acceptance_test/cluster.yaml
@@ -1,13 +0,0 @@
-kind: Cluster
-apiVersion: kind.x-k8s.io/v1alpha4
-kubeadmConfigPatches:
-  - |
-    apiVersion: kubeadm.k8s.io/v1beta2
-    kind: ClusterConfiguration
-    metadata:
-      name: config
-    apiServer:
-      extraArgs:
-        oidc-issuer-url: OIDC_ISSUER_URL
-        oidc-client-id: OIDC_CLIENT_ID
-        oidc-username-claim: email
--- a/adaptors/cmd.go
+++ b/adaptors/cmd.go
@@ -0,0 +1,75 @@
+package adaptors
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/usecases/interfaces"
+	"github.com/jessevdk/go-flags"
+	"github.com/mitchellh/go-homedir"
+	"github.com/pkg/errors"
+	"go.uber.org/dig"
+)
+
+func NewCmd(i Cmd) adaptors.Cmd {
+	return &i
+}
+
+type Cmd struct {
+	dig.In
+	Login  usecases.Login
+	Logger adaptors.Logger
+}
+
+func (cmd *Cmd) Run(ctx context.Context, args []string, version string) int {
+	var o cmdOptions
+	parser := flags.NewParser(&o, flags.HelpFlag)
+	parser.LongDescription = fmt.Sprintf(`Version %s
+		This updates the kubeconfig for Kubernetes OpenID Connect (OIDC) authentication.`,
+		version)
+	args, err := parser.ParseArgs(args[1:])
+	if err != nil {
+		cmd.Logger.Printf("Error: %s", err)
+		return 1
+	}
+	if len(args) > 0 {
+		cmd.Logger.Printf("Error: too many arguments")
+		return 1
+	}
+	cmd.Logger.SetLevel(adaptors.LogLevel(o.Verbose))
+	kubeConfig, err := o.ExpandKubeConfig()
+	if err != nil {
+		cmd.Logger.Printf("Error: invalid option: %s", err)
+		return 1
+	}
+
+	in := usecases.LoginIn{
+		KubeConfig:      kubeConfig,
+		ListenPort:      o.ListenPort,
+		SkipTLSVerify:   o.SkipTLSVerify,
+		SkipOpenBrowser: o.SkipOpenBrowser,
+	}
+	if err := cmd.Login.Do(ctx, in); err != nil {
+		cmd.Logger.Printf("Error: %s", err)
+		return 1
+	}
+	return 0
+}
+
+type cmdOptions struct {
+	KubeConfig      string `long:"kubeconfig" default:"~/.kube/config" env:"KUBECONFIG" description:"Path to the kubeconfig file"`
+	ListenPort      int    `long:"listen-port" default:"8000" env:"KUBELOGIN_LISTEN_PORT" description:"Port used by kubelogin to bind its webserver"`
+	SkipTLSVerify   bool   `long:"insecure-skip-tls-verify" env:"KUBELOGIN_INSECURE_SKIP_TLS_VERIFY" description:"If set, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure"`
+	SkipOpenBrowser bool   `long:"skip-open-browser" env:"KUBELOGIN_SKIP_OPEN_BROWSER" description:"If set, it does not open the browser on authentication."`
+	Verbose         int    `long:"v" short:"v" default:"0" description:"If set to 1 or greater, show debug log"`
+}
+
+// ExpandKubeConfig returns an expanded KubeConfig path.
+func (c *cmdOptions) ExpandKubeConfig() (string, error) {
+	d, err := homedir.Expand(c.KubeConfig)
+	if err != nil {
+		return "", errors.Wrapf(err, "could not expand %s", c.KubeConfig)
+	}
+	return d, nil
+}
--- a/adaptors/cmd_test.go
+++ b/adaptors/cmd_test.go
@@ -0,0 +1,98 @@
+package adaptors
+
+import (
+	"context"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/adaptors/mock_adaptors"
+	"github.com/int128/kubelogin/usecases/interfaces"
+	"github.com/int128/kubelogin/usecases/mock_usecases"
+	"github.com/mitchellh/go-homedir"
+)
+
+func TestCmd_Run(t *testing.T) {
+	const executable = "kubelogin"
+	const version = "HEAD"
+
+	t.Run("Defaults", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		ctx := context.TODO()
+
+		login := mock_usecases.NewMockLogin(ctrl)
+		login.EXPECT().
+			Do(ctx, usecases.LoginIn{
+				KubeConfig: expand(t, "~/.kube/config"),
+				ListenPort: 8000,
+			})
+
+		logger := mock_adaptors.NewLogger(t, ctrl)
+		logger.EXPECT().
+			SetLevel(adaptors.LogLevel(0))
+
+		cmd := Cmd{
+			Login:  login,
+			Logger: logger,
+		}
+		exitCode := cmd.Run(ctx, []string{executable}, version)
+		if exitCode != 0 {
+			t.Errorf("exitCode wants 0 but %d", exitCode)
+		}
+	})
+
+	t.Run("FullOptions", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		ctx := context.TODO()
+
+		login := mock_usecases.NewMockLogin(ctrl)
+		login.EXPECT().
+			Do(ctx, usecases.LoginIn{
+				KubeConfig:      expand(t, "~/.kube/config"),
+				ListenPort:      10080,
+				SkipTLSVerify:   true,
+				SkipOpenBrowser: true,
+			})
+
+		logger := mock_adaptors.NewLogger(t, ctrl)
+		logger.EXPECT().
+			SetLevel(adaptors.LogLevel(1))
+
+		cmd := Cmd{
+			Login:  login,
+			Logger: logger,
+		}
+		exitCode := cmd.Run(ctx, []string{executable,
+			"--listen-port", "10080",
+			"--insecure-skip-tls-verify",
+			"--skip-open-browser",
+			"-v1",
+		}, version)
+		if exitCode != 0 {
+			t.Errorf("exitCode wants 0 but %d", exitCode)
+		}
+	})
+
+	t.Run("TooManyArgs", func(t *testing.T) {
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+		cmd := Cmd{
+			Login:  mock_usecases.NewMockLogin(ctrl),
+			Logger: mock_adaptors.NewLogger(t, ctrl),
+		}
+		exitCode := cmd.Run(context.TODO(), []string{executable, "some"}, version)
+		if exitCode != 1 {
+			t.Errorf("exitCode wants 1 but %d", exitCode)
+		}
+	})
+}
+
+func expand(t *testing.T, path string) string {
+	d, err := homedir.Expand(path)
+	if err != nil {
+		t.Fatalf("could not expand: %s", err)
+	}
+	return d
+}
--- a/adaptors/http.go
+++ b/adaptors/http.go
@@ -0,0 +1,82 @@
+package adaptors
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/base64"
+	"io/ioutil"
+	"net/http"
+
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/infrastructure"
+	"github.com/pkg/errors"
+	"go.uber.org/dig"
+)
+
+func NewHTTP(i HTTP) adaptors.HTTP {
+	return &i
+}
+
+type HTTP struct {
+	dig.In
+	Logger adaptors.Logger
+}
+
+func (*HTTP) NewClientConfig() adaptors.HTTPClientConfig {
+	return &httpClientConfig{
+		certPool: x509.NewCertPool(),
+	}
+}
+
+func (h *HTTP) NewClient(config adaptors.HTTPClientConfig) (*http.Client, error) {
+	return &http.Client{
+		Transport: &infrastructure.LoggingTransport{
+			Base: &http.Transport{
+				TLSClientConfig: config.TLSConfig(),
+				Proxy:           http.ProxyFromEnvironment,
+			},
+			Logger: h.Logger,
+		},
+	}, nil
+}
+
+type httpClientConfig struct {
+	certPool      *x509.CertPool
+	skipTLSVerify bool
+}
+
+func (c *httpClientConfig) AddCertificateFromFile(filename string) error {
+	b, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return errors.Wrapf(err, "could not read %s", filename)
+	}
+	if c.certPool.AppendCertsFromPEM(b) != true {
+		return errors.Errorf("could not append certificate from %s", filename)
+	}
+	return nil
+}
+
+func (c *httpClientConfig) AddEncodedCertificate(base64String string) error {
+	b, err := base64.StdEncoding.DecodeString(base64String)
+	if err != nil {
+		return errors.Wrapf(err, "could not decode base64")
+	}
+	if c.certPool.AppendCertsFromPEM(b) != true {
+		return errors.Errorf("could not append certificate")
+	}
+	return nil
+}
+
+func (c *httpClientConfig) TLSConfig() *tls.Config {
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: c.skipTLSVerify,
+	}
+	if len(c.certPool.Subjects()) > 0 {
+		tlsConfig.RootCAs = c.certPool
+	}
+	return tlsConfig
+}
+
+func (c *httpClientConfig) SetSkipTLSVerify(b bool) {
+	c.skipTLSVerify = b
+}
--- a/adaptors/interfaces/adaptors.go
+++ b/adaptors/interfaces/adaptors.go
@@ -0,0 +1,82 @@
+package adaptors
+
+import (
+	"context"
+	"crypto/tls"
+	"net/http"
+
+	"github.com/coreos/go-oidc"
+	"k8s.io/client-go/tools/clientcmd/api"
+)
+
+//go:generate mockgen -package mock_adaptors -destination ../mock_adaptors/mock_adaptors.go github.com/int128/kubelogin/adaptors/interfaces KubeConfig,HTTP,HTTPClientConfig,OIDC,Logger
+
+type Cmd interface {
+	Run(ctx context.Context, args []string, version string) int
+}
+
+type KubeConfig interface {
+	LoadFromFile(filename string) (*api.Config, error)
+	WriteToFile(config *api.Config, filename string) error
+}
+
+type HTTP interface {
+	NewClientConfig() HTTPClientConfig
+	NewClient(config HTTPClientConfig) (*http.Client, error)
+}
+
+type HTTPClientConfig interface {
+	AddCertificateFromFile(filename string) error
+	AddEncodedCertificate(base64String string) error
+	SetSkipTLSVerify(b bool)
+
+	TLSConfig() *tls.Config
+}
+
+type OIDC interface {
+	Authenticate(ctx context.Context, in OIDCAuthenticateIn, cb OIDCAuthenticateCallback) (*OIDCAuthenticateOut, error)
+	VerifyIDToken(ctx context.Context, in OIDCVerifyTokenIn) (*oidc.IDToken, error)
+}
+
+type OIDCAuthenticateIn struct {
+	Issuer          string
+	ClientID        string
+	ClientSecret    string
+	ExtraScopes     []string     // Additional scopes
+	Client          *http.Client // HTTP client for oidc and oauth2
+	LocalServerPort int          // HTTP server port
+	SkipOpenBrowser bool         // skip opening browser if true
+}
+
+type OIDCAuthenticateCallback struct {
+	ShowLocalServerURL func(url string)
+}
+
+type OIDCAuthenticateOut struct {
+	VerifiedIDToken *oidc.IDToken
+	IDToken         string
+	RefreshToken    string
+}
+
+type OIDCVerifyTokenIn struct {
+	IDToken  string
+	Issuer   string
+	ClientID string
+	Client   *http.Client
+}
+
+type Logger interface {
+	Printf(format string, v ...interface{})
+	Debugf(level LogLevel, format string, v ...interface{})
+	SetLevel(level LogLevel)
+	IsEnabled(level LogLevel) bool
+}
+
+// LogLevel represents a log level for debug.
+//
+// 0 = None
+// 1 = Including in/out
+// 2 = Including transport headers
+// 3 = Including transport body
+//
+type LogLevel int
--- a/adaptors/kubeconfig.go
+++ b/adaptors/kubeconfig.go
@@ -0,0 +1,30 @@
+package adaptors
+
+import (
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/pkg/errors"
+	"k8s.io/client-go/tools/clientcmd"
+	"k8s.io/client-go/tools/clientcmd/api"
+)
+
+func NewKubeConfig() adaptors.KubeConfig {
+	return &KubeConfig{}
+}
+
+type KubeConfig struct{}
+
+func (*KubeConfig) LoadFromFile(filename string) (*api.Config, error) {
+	config, err := clientcmd.LoadFromFile(filename)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read the kubeconfig from %s", filename)
+	}
+	return config, err
+}
+
+func (*KubeConfig) WriteToFile(config *api.Config, filename string) error {
+	err := clientcmd.WriteToFile(*config, filename)
+	if err != nil {
+		return errors.Wrapf(err, "could not write the kubeconfig to %s", filename)
+	}
+	return err
+}
--- a/adaptors/logger.go
+++ b/adaptors/logger.go
@@ -0,0 +1,49 @@
+package adaptors
+
+import (
+	"log"
+	"os"
+
+	"github.com/int128/kubelogin/adaptors/interfaces"
+)
+
+// NewLogger returns a Logger with the standard log.Logger for messages and debug.
+func NewLogger() adaptors.Logger {
+	return &Logger{
+		stdLogger:   log.New(os.Stderr, "", 0),
+		debugLogger: log.New(os.Stderr, "", log.Ltime|log.Lmicroseconds),
+	}
+}
+
+// NewLoggerWith returns a Logger with the given standard log.Logger.
+func NewLoggerWith(l stdLogger) *Logger {
+	return &Logger{
+		stdLogger:   l,
+		debugLogger: l,
+	}
+}
+
+type stdLogger interface {
+	Printf(format string, v ...interface{})
+}
+
+// Logger wraps the standard log.Logger and just provides debug level.
+type Logger struct {
+	stdLogger
+	debugLogger stdLogger
+	level       adaptors.LogLevel
+}
+
+func (l *Logger) Debugf(level adaptors.LogLevel, format string, v ...interface{}) {
+	if l.IsEnabled(level) {
+		l.debugLogger.Printf(format, v...)
+	}
+}
+
+func (l *Logger) SetLevel(level adaptors.LogLevel) {
+	l.level = level
+}
+
+func (l *Logger) IsEnabled(level adaptors.LogLevel) bool {
+	return level <= l.level
+}
--- a/adaptors/logger_test.go
+++ b/adaptors/logger_test.go
@@ -0,0 +1,53 @@
+package adaptors
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/int128/kubelogin/adaptors/interfaces"
+)
+
+type mockStdLogger struct {
+	count int
+}
+
+func (l *mockStdLogger) Printf(format string, v ...interface{}) {
+	l.count++
+}
+
+func TestLogger_Debugf(t *testing.T) {
+	for _, c := range []struct {
+		loggerLevel adaptors.LogLevel
+		debugfLevel adaptors.LogLevel
+		count       int
+	}{
+		{0, 0, 1},
+		{0, 1, 0},
+
+		{1, 0, 1},
+		{1, 1, 1},
+		{1, 2, 0},
+
+		{2, 1, 1},
+		{2, 2, 1},
+		{2, 3, 0},
+	} {
+		t.Run(fmt.Sprintf("%+v", c), func(t *testing.T) {
+			m := &mockStdLogger{}
+			l := &Logger{debugLogger: m, level: c.loggerLevel}
+			l.Debugf(c.debugfLevel, "hello")
+			if m.count != c.count {
+				t.Errorf("count wants %d but %d", c.count, m.count)
+			}
+		})
+	}
+}
+
+func TestLogger_Printf(t *testing.T) {
+	m := &mockStdLogger{}
+	l := &Logger{stdLogger: m}
+	l.Printf("hello")
+	if m.count != 1 {
+		t.Errorf("count wants %d but %d", 1, m.count)
+	}
+}
--- a/adaptors/mock_adaptors/logger.go
+++ b/adaptors/mock_adaptors/logger.go
@@ -0,0 +1,31 @@
+package mock_adaptors
+
+import (
+	"github.com/golang/mock/gomock"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+)
+
+func NewLogger(t testingLogger, ctrl *gomock.Controller) *Logger {
+	return &Logger{
+		MockLogger:    NewMockLogger(ctrl),
+		testingLogger: t,
+	}
+}
+
+type testingLogger interface {
+	Logf(format string, v ...interface{})
+}
+
+// Logger provides mock feature but overrides output methods with actual logging.
+type Logger struct {
+	*MockLogger
+	testingLogger testingLogger
+}
+
+func (l *Logger) Printf(format string, v ...interface{}) {
+	l.testingLogger.Logf(format, v...)
+}
+
+func (l *Logger) Debugf(level adaptors.LogLevel, format string, v ...interface{}) {
+	l.testingLogger.Logf(format, v...)
+}
--- a/adaptors/mock_adaptors/mock_adaptors.go
+++ b/adaptors/mock_adaptors/mock_adaptors.go
@@ -0,0 +1,305 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/int128/kubelogin/adaptors/interfaces (interfaces: KubeConfig,HTTP,HTTPClientConfig,OIDC,Logger)
+
+// Package mock_adaptors is a generated GoMock package.
+package mock_adaptors
+
+import (
+	context "context"
+	tls "crypto/tls"
+	go_oidc "github.com/coreos/go-oidc"
+	gomock "github.com/golang/mock/gomock"
+	interfaces "github.com/int128/kubelogin/adaptors/interfaces"
+	api "k8s.io/client-go/tools/clientcmd/api"
+	http "net/http"
+	reflect "reflect"
+)
+
+// MockKubeConfig is a mock of KubeConfig interface
+type MockKubeConfig struct {
+	ctrl     *gomock.Controller
+	recorder *MockKubeConfigMockRecorder
+}
+
+// MockKubeConfigMockRecorder is the mock recorder for MockKubeConfig
+type MockKubeConfigMockRecorder struct {
+	mock *MockKubeConfig
+}
+
+// NewMockKubeConfig creates a new mock instance
+func NewMockKubeConfig(ctrl *gomock.Controller) *MockKubeConfig {
+	mock := &MockKubeConfig{ctrl: ctrl}
+	mock.recorder = &MockKubeConfigMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockKubeConfig) EXPECT() *MockKubeConfigMockRecorder {
+	return m.recorder
+}
+
+// LoadFromFile mocks base method
+func (m *MockKubeConfig) LoadFromFile(arg0 string) (*api.Config, error) {
+	ret := m.ctrl.Call(m, "LoadFromFile", arg0)
+	ret0, _ := ret[0].(*api.Config)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// LoadFromFile indicates an expected call of LoadFromFile
+func (mr *MockKubeConfigMockRecorder) LoadFromFile(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LoadFromFile", reflect.TypeOf((*MockKubeConfig)(nil).LoadFromFile), arg0)
+}
+
+// WriteToFile mocks base method
+func (m *MockKubeConfig) WriteToFile(arg0 *api.Config, arg1 string) error {
+	ret := m.ctrl.Call(m, "WriteToFile", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// WriteToFile indicates an expected call of WriteToFile
+func (mr *MockKubeConfigMockRecorder) WriteToFile(arg0, arg1 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "WriteToFile", reflect.TypeOf((*MockKubeConfig)(nil).WriteToFile), arg0, arg1)
+}
+
+// MockHTTP is a mock of HTTP interface
+type MockHTTP struct {
+	ctrl     *gomock.Controller
+	recorder *MockHTTPMockRecorder
+}
+
+// MockHTTPMockRecorder is the mock recorder for MockHTTP
+type MockHTTPMockRecorder struct {
+	mock *MockHTTP
+}
+
+// NewMockHTTP creates a new mock instance
+func NewMockHTTP(ctrl *gomock.Controller) *MockHTTP {
+	mock := &MockHTTP{ctrl: ctrl}
+	mock.recorder = &MockHTTPMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockHTTP) EXPECT() *MockHTTPMockRecorder {
+	return m.recorder
+}
+
+// NewClient mocks base method
+func (m *MockHTTP) NewClient(arg0 interfaces.HTTPClientConfig) (*http.Client, error) {
+	ret := m.ctrl.Call(m, "NewClient", arg0)
+	ret0, _ := ret[0].(*http.Client)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// NewClient indicates an expected call of NewClient
+func (mr *MockHTTPMockRecorder) NewClient(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NewClient", reflect.TypeOf((*MockHTTP)(nil).NewClient), arg0)
+}
+
+// NewClientConfig mocks base method
+func (m *MockHTTP) NewClientConfig() interfaces.HTTPClientConfig {
+	ret := m.ctrl.Call(m, "NewClientConfig")
+	ret0, _ := ret[0].(interfaces.HTTPClientConfig)
+	return ret0
+}
+
+// NewClientConfig indicates an expected call of NewClientConfig
+func (mr *MockHTTPMockRecorder) NewClientConfig() *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NewClientConfig", reflect.TypeOf((*MockHTTP)(nil).NewClientConfig))
+}
+
+// MockHTTPClientConfig is a mock of HTTPClientConfig interface
+type MockHTTPClientConfig struct {
+	ctrl     *gomock.Controller
+	recorder *MockHTTPClientConfigMockRecorder
+}
+
+// MockHTTPClientConfigMockRecorder is the mock recorder for MockHTTPClientConfig
+type MockHTTPClientConfigMockRecorder struct {
+	mock *MockHTTPClientConfig
+}
+
+// NewMockHTTPClientConfig creates a new mock instance
+func NewMockHTTPClientConfig(ctrl *gomock.Controller) *MockHTTPClientConfig {
+	mock := &MockHTTPClientConfig{ctrl: ctrl}
+	mock.recorder = &MockHTTPClientConfigMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockHTTPClientConfig) EXPECT() *MockHTTPClientConfigMockRecorder {
+	return m.recorder
+}
+
+// AddCertificateFromFile mocks base method
+func (m *MockHTTPClientConfig) AddCertificateFromFile(arg0 string) error {
+	ret := m.ctrl.Call(m, "AddCertificateFromFile", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// AddCertificateFromFile indicates an expected call of AddCertificateFromFile
+func (mr *MockHTTPClientConfigMockRecorder) AddCertificateFromFile(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddCertificateFromFile", reflect.TypeOf((*MockHTTPClientConfig)(nil).AddCertificateFromFile), arg0)
+}
+
+// AddEncodedCertificate mocks base method
+func (m *MockHTTPClientConfig) AddEncodedCertificate(arg0 string) error {
+	ret := m.ctrl.Call(m, "AddEncodedCertificate", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// AddEncodedCertificate indicates an expected call of AddEncodedCertificate
+func (mr *MockHTTPClientConfigMockRecorder) AddEncodedCertificate(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddEncodedCertificate", reflect.TypeOf((*MockHTTPClientConfig)(nil).AddEncodedCertificate), arg0)
+}
+
+// SetSkipTLSVerify mocks base method
+func (m *MockHTTPClientConfig) SetSkipTLSVerify(arg0 bool) {
+	m.ctrl.Call(m, "SetSkipTLSVerify", arg0)
+}
+
+// SetSkipTLSVerify indicates an expected call of SetSkipTLSVerify
+func (mr *MockHTTPClientConfigMockRecorder) SetSkipTLSVerify(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SetSkipTLSVerify", reflect.TypeOf((*MockHTTPClientConfig)(nil).SetSkipTLSVerify), arg0)
+}
+
+// TLSConfig mocks base method
+func (m *MockHTTPClientConfig) TLSConfig() *tls.Config {
+	ret := m.ctrl.Call(m, "TLSConfig")
+	ret0, _ := ret[0].(*tls.Config)
+	return ret0
+}
+
+// TLSConfig indicates an expected call of TLSConfig
+func (mr *MockHTTPClientConfigMockRecorder) TLSConfig() *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "TLSConfig", reflect.TypeOf((*MockHTTPClientConfig)(nil).TLSConfig))
+}
+
+// MockOIDC is a mock of OIDC interface
+type MockOIDC struct {
+	ctrl     *gomock.Controller
+	recorder *MockOIDCMockRecorder
+}
+
+// MockOIDCMockRecorder is the mock recorder for MockOIDC
+type MockOIDCMockRecorder struct {
+	mock *MockOIDC
+}
+
+// NewMockOIDC creates a new mock instance
+func NewMockOIDC(ctrl *gomock.Controller) *MockOIDC {
+	mock := &MockOIDC{ctrl: ctrl}
+	mock.recorder = &MockOIDCMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockOIDC) EXPECT() *MockOIDCMockRecorder {
+	return m.recorder
+}
+
+// Authenticate mocks base method
+func (m *MockOIDC) Authenticate(arg0 context.Context, arg1 interfaces.OIDCAuthenticateIn, arg2 interfaces.OIDCAuthenticateCallback) (*interfaces.OIDCAuthenticateOut, error) {
+	ret := m.ctrl.Call(m, "Authenticate", arg0, arg1, arg2)
+	ret0, _ := ret[0].(*interfaces.OIDCAuthenticateOut)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// Authenticate indicates an expected call of Authenticate
+func (mr *MockOIDCMockRecorder) Authenticate(arg0, arg1, arg2 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Authenticate", reflect.TypeOf((*MockOIDC)(nil).Authenticate), arg0, arg1, arg2)
+}
+
+// VerifyIDToken mocks base method
+func (m *MockOIDC) VerifyIDToken(arg0 context.Context, arg1 interfaces.OIDCVerifyTokenIn) (*go_oidc.IDToken, error) {
+	ret := m.ctrl.Call(m, "VerifyIDToken", arg0, arg1)
+	ret0, _ := ret[0].(*go_oidc.IDToken)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// VerifyIDToken indicates an expected call of VerifyIDToken
+func (mr *MockOIDCMockRecorder) VerifyIDToken(arg0, arg1 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "VerifyIDToken", reflect.TypeOf((*MockOIDC)(nil).VerifyIDToken), arg0, arg1)
+}
+
+// MockLogger is a mock of Logger interface
+type MockLogger struct {
+	ctrl     *gomock.Controller
+	recorder *MockLoggerMockRecorder
+}
+
+// MockLoggerMockRecorder is the mock recorder for MockLogger
+type MockLoggerMockRecorder struct {
+	mock *MockLogger
+}
+
+// NewMockLogger creates a new mock instance
+func NewMockLogger(ctrl *gomock.Controller) *MockLogger {
+	mock := &MockLogger{ctrl: ctrl}
+	mock.recorder = &MockLoggerMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use
+func (m *MockLogger) EXPECT() *MockLoggerMockRecorder {
+	return m.recorder
+}
+
+// Debugf mocks base method
+func (m *MockLogger) Debugf(arg0 interfaces.LogLevel, arg1 string, arg2 ...interface{}) {
+	varargs := []interface{}{arg0, arg1}
+	for _, a := range arg2 {
+		varargs = append(varargs, a)
+	}
+	m.ctrl.Call(m, "Debugf", varargs...)
+}
+
+// Debugf indicates an expected call of Debugf
+func (mr *MockLoggerMockRecorder) Debugf(arg0, arg1 interface{}, arg2 ...interface{}) *gomock.Call {
+	varargs := append([]interface{}{arg0, arg1}, arg2...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Debugf", reflect.TypeOf((*MockLogger)(nil).Debugf), varargs...)
+}
+
+// IsEnabled mocks base method
+func (m *MockLogger) IsEnabled(arg0 interfaces.LogLevel) bool {
+	ret := m.ctrl.Call(m, "IsEnabled", arg0)
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// IsEnabled indicates an expected call of IsEnabled
+func (mr *MockLoggerMockRecorder) IsEnabled(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IsEnabled", reflect.TypeOf((*MockLogger)(nil).IsEnabled), arg0)
+}
+
+// Printf mocks base method
+func (m *MockLogger) Printf(arg0 string, arg1 ...interface{}) {
+	varargs := []interface{}{arg0}
+	for _, a := range arg1 {
+		varargs = append(varargs, a)
+	}
+	m.ctrl.Call(m, "Printf", varargs...)
+}
+
+// Printf indicates an expected call of Printf
+func (mr *MockLoggerMockRecorder) Printf(arg0 interface{}, arg1 ...interface{}) *gomock.Call {
+	varargs := append([]interface{}{arg0}, arg1...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Printf", reflect.TypeOf((*MockLogger)(nil).Printf), varargs...)
+}
+
+// SetLevel mocks base method
+func (m *MockLogger) SetLevel(arg0 interfaces.LogLevel) {
+	m.ctrl.Call(m, "SetLevel", arg0)
+}
+
+// SetLevel indicates an expected call of SetLevel
+func (mr *MockLoggerMockRecorder) SetLevel(arg0 interface{}) *gomock.Call {
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SetLevel", reflect.TypeOf((*MockLogger)(nil).SetLevel), arg0)
+}
--- a/adaptors/oidc.go
+++ b/adaptors/oidc.go
@@ -0,0 +1,73 @@
+package adaptors
+
+import (
+	"context"
+
+	"github.com/coreos/go-oidc"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/oauth2cli"
+	"github.com/pkg/errors"
+	"golang.org/x/oauth2"
+)
+
+func NewOIDC() adaptors.OIDC {
+	return &OIDC{}
+}
+
+type OIDC struct{}
+
+func (*OIDC) Authenticate(ctx context.Context, in adaptors.OIDCAuthenticateIn, cb adaptors.OIDCAuthenticateCallback) (*adaptors.OIDCAuthenticateOut, error) {
+	if in.Client != nil {
+		ctx = context.WithValue(ctx, oauth2.HTTPClient, in.Client)
+	}
+	provider, err := oidc.NewProvider(ctx, in.Issuer)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not discovery the OIDC issuer")
+	}
+	flow := oauth2cli.AuthCodeFlow{
+		Config: oauth2.Config{
+			Endpoint:     provider.Endpoint(),
+			ClientID:     in.ClientID,
+			ClientSecret: in.ClientSecret,
+			Scopes:       append(in.ExtraScopes, oidc.ScopeOpenID),
+		},
+		LocalServerPort:    in.LocalServerPort,
+		SkipOpenBrowser:    in.SkipOpenBrowser,
+		AuthCodeOptions:    []oauth2.AuthCodeOption{oauth2.AccessTypeOffline},
+		ShowLocalServerURL: cb.ShowLocalServerURL,
+	}
+	token, err := flow.GetToken(ctx)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not get a token")
+	}
+	idToken, ok := token.Extra("id_token").(string)
+	if !ok {
+		return nil, errors.Errorf("id_token is missing in the token response: %s", token)
+	}
+	verifier := provider.Verifier(&oidc.Config{ClientID: in.ClientID})
+	verifiedIDToken, err := verifier.Verify(ctx, idToken)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not verify the id_token")
+	}
+	return &adaptors.OIDCAuthenticateOut{
+		VerifiedIDToken: verifiedIDToken,
+		IDToken:         idToken,
+		RefreshToken:    token.RefreshToken,
+	}, nil
+}
+
+func (*OIDC) VerifyIDToken(ctx context.Context, in adaptors.OIDCVerifyTokenIn) (*oidc.IDToken, error) {
+	if in.Client != nil {
+		ctx = context.WithValue(ctx, oauth2.HTTPClient, in.Client)
+	}
+	provider, err := oidc.NewProvider(ctx, in.Issuer)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not discovery the OIDC issuer")
+	}
+	verifier := provider.Verifier(&oidc.Config{ClientID: in.ClientID})
+	verifiedIDToken, err := verifier.Verify(ctx, in.IDToken)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not verify the id_token")
+	}
+	return verifiedIDToken, nil
+}
--- a/adaptors_test/authserver/authserver.go
+++ b/adaptors_test/authserver/authserver.go
@@ -0,0 +1,38 @@
+package authserver
+
+import (
+	"crypto/rsa"
+	"net/http"
+	"testing"
+)
+
+// Config represents server configuration.
+type Config struct {
+	Issuer         string
+	Scope          string
+	TLSServerCert  string
+	TLSServerKey   string
+	IDToken        string
+	RefreshToken   string
+	IDTokenKeyPair *rsa.PrivateKey
+}
+
+// Start starts a HTTP server.
+func Start(t *testing.T, c Config) *http.Server {
+	s := &http.Server{
+		Addr:    "localhost:9000",
+		Handler: newHandler(t, c),
+	}
+	go func() {
+		var err error
+		if c.TLSServerCert != "" && c.TLSServerKey != "" {
+			err = s.ListenAndServeTLS(c.TLSServerCert, c.TLSServerKey)
+		} else {
+			err = s.ListenAndServe()
+		}
+		if err != nil && err != http.ErrServerClosed {
+			t.Error(err)
+		}
+	}()
+	return s
+}
--- a/adaptors_test/authserver/handler.go
+++ b/adaptors_test/authserver/handler.go
@@ -0,0 +1,108 @@
+package authserver
+
+import (
+	"encoding/base64"
+	"fmt"
+	"math/big"
+	"net/http"
+	"testing"
+	"text/template"
+
+	"github.com/pkg/errors"
+)
+
+type handler struct {
+	t *testing.T
+
+	discovery *template.Template
+	token     *template.Template
+	jwks      *template.Template
+	authCode  string
+
+	// Template values
+	Issuer       string
+	Scope        string // Default to openid
+	IDToken      string
+	RefreshToken string
+	PrivateKey   struct{ N, E string }
+}
+
+func newHandler(t *testing.T, c Config) *handler {
+	tpl, err := template.ParseFiles(
+		"authserver/testdata/oidc-discovery.json",
+		"authserver/testdata/oidc-token.json",
+		"authserver/testdata/oidc-jwks.json",
+	)
+	if err != nil {
+		t.Fatalf("could not read the templates: %s", err)
+	}
+	h := handler{
+		t:            t,
+		discovery:    tpl.Lookup("oidc-discovery.json"),
+		token:        tpl.Lookup("oidc-token.json"),
+		jwks:         tpl.Lookup("oidc-jwks.json"),
+		authCode:     "3d24a8bd-35e6-457d-999e-e04bb1dfcec7",
+		Issuer:       c.Issuer,
+		Scope:        c.Scope,
+		IDToken:      c.IDToken,
+		RefreshToken: c.RefreshToken,
+	}
+	if h.Scope == "" {
+		h.Scope = "openid"
+	}
+	if c.IDTokenKeyPair != nil {
+		h.PrivateKey.E = base64.RawURLEncoding.EncodeToString(big.NewInt(int64(c.IDTokenKeyPair.E)).Bytes())
+		h.PrivateKey.N = base64.RawURLEncoding.EncodeToString(c.IDTokenKeyPair.N.Bytes())
+	}
+	return &h
+}
+
+func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if err := h.serveHTTP(w, r); err != nil {
+		h.t.Logf("[auth-server] Error: %s", err)
+		w.WriteHeader(500)
+	}
+}
+
+func (h *handler) serveHTTP(w http.ResponseWriter, r *http.Request) error {
+	m := r.Method
+	p := r.URL.Path
+	h.t.Logf("[auth-server] %s %s", m, r.RequestURI)
+	switch {
+	case m == "GET" && p == "/.well-known/openid-configuration":
+		w.Header().Add("Content-Type", "application/json")
+		if err := h.discovery.Execute(w, h); err != nil {
+			return errors.Wrapf(err, "could not execute the template")
+		}
+	case m == "GET" && p == "/protocol/openid-connect/auth":
+		// Authentication Response
+		// http://openid.net/specs/openid-connect-core-1_0.html#AuthResponse
+		q := r.URL.Query()
+		if h.Scope != q.Get("scope") {
+			return errors.Errorf("scope wants %s but %s", h.Scope, q.Get("scope"))
+		}
+		to := fmt.Sprintf("%s?state=%s&code=%s", q.Get("redirect_uri"), q.Get("state"), h.authCode)
+		http.Redirect(w, r, to, 302)
+	case m == "POST" && p == "/protocol/openid-connect/token":
+		// Token Response
+		// http://openid.net/specs/openid-connect-core-1_0.html#TokenResponse
+		if err := r.ParseForm(); err != nil {
+			return errors.Wrapf(err, "could not parse the form")
+		}
+		if h.authCode != r.Form.Get("code") {
+			return errors.Errorf("code wants %s but %s", h.authCode, r.Form.Get("code"))
+		}
+		w.Header().Add("Content-Type", "application/json")
+		if err := h.token.Execute(w, h); err != nil {
+			return errors.Wrapf(err, "could not execute the template")
+		}
+	case m == "GET" && p == "/protocol/openid-connect/certs":
+		w.Header().Add("Content-Type", "application/json")
+		if err := h.jwks.Execute(w, h); err != nil {
+			return errors.Wrapf(err, "could not execute the template")
+		}
+	default:
+		http.Error(w, "Not Found", 404)
+	}
+	return nil
+}
--- a/adaptors_test/authserver/testdata/oidc-discovery.json
+++ b/adaptors_test/authserver/testdata/oidc-discovery.json
@@ -0,0 +1,85 @@
+{
+  "issuer": "{{ .Issuer }}",
+  "authorization_endpoint": "{{ .Issuer }}/protocol/openid-connect/auth",
+  "token_endpoint": "{{ .Issuer }}/protocol/openid-connect/token",
+  "token_introspection_endpoint": "{{ .Issuer }}/protocol/openid-connect/token/introspect",
+  "userinfo_endpoint": "{{ .Issuer }}/protocol/openid-connect/userinfo",
+  "end_session_endpoint": "{{ .Issuer }}/protocol/openid-connect/logout",
+  "jwks_uri": "{{ .Issuer }}/protocol/openid-connect/certs",
+  "check_session_iframe": "{{ .Issuer }}/protocol/openid-connect/login-status-iframe.html",
+  "grant_types_supported": [
+    "authorization_code",
+    "implicit",
+    "refresh_token",
+    "password",
+    "client_credentials"
+  ],
+  "response_types_supported": [
+    "code",
+    "none",
+    "id_token",
+    "token",
+    "id_token token",
+    "code id_token",
+    "code token",
+    "code id_token token"
+  ],
+  "subject_types_supported": [
+    "public",
+    "pairwise"
+  ],
+  "id_token_signing_alg_values_supported": [
+    "RS256"
+  ],
+  "userinfo_signing_alg_values_supported": [
+    "RS256"
+  ],
+  "request_object_signing_alg_values_supported": [
+    "none",
+    "RS256"
+  ],
+  "response_modes_supported": [
+    "query",
+    "fragment",
+    "form_post"
+  ],
+  "registration_endpoint": "{{ .Issuer }}/clients-registrations/openid-connect",
+  "token_endpoint_auth_methods_supported": [
+    "private_key_jwt",
+    "client_secret_basic",
+    "client_secret_post",
+    "client_secret_jwt"
+  ],
+  "token_endpoint_auth_signing_alg_values_supported": [
+    "RS256"
+  ],
+  "claims_supported": [
+    "sub",
+    "iss",
+    "auth_time",
+    "name",
+    "given_name",
+    "family_name",
+    "preferred_username",
+    "email"
+  ],
+  "claim_types_supported": [
+    "normal"
+  ],
+  "claims_parameter_supported": false,
+  "scopes_supported": [
+    "openid",
+    "offline_access",
+    "phone",
+    "address",
+    "email",
+    "profile"
+  ],
+  "request_parameter_supported": true,
+  "request_uri_parameter_supported": true,
+  "code_challenge_methods_supported": [
+    "plain",
+    "S256"
+  ],
+  "tls_client_certificate_bound_access_tokens": true
+}
--- a/adaptors_test/authserver/testdata/oidc-jwks.json
+++ b/adaptors_test/authserver/testdata/oidc-jwks.json
@@ -0,0 +1,12 @@
+{
+  "keys": [
+    {
+      "kty": "RSA",
+      "alg": "RS256",
+      "use": "sig",
+      "kid": "xxx",
+      "n": "{{ .PrivateKey.N }}",
+      "e": "{{ .PrivateKey.E }}"
+    }
+  ]
+}
--- a/adaptors_test/authserver/testdata/oidc-token.json
+++ b/adaptors_test/authserver/testdata/oidc-token.json
@@ -0,0 +1,7 @@
+{
+  "access_token": "7eaae8ab-8f69-45d9-ab7c-73560cd9444d",
+  "token_type": "Bearer",
+  "refresh_token": "{{ .RefreshToken }}",
+  "expires_in": 3600,
+  "id_token": "{{ .IDToken }}"
+}
--- a/adaptors_test/cmd_test.go
+++ b/adaptors_test/cmd_test.go
@@ -0,0 +1,230 @@
+package adaptors_test
+
+import (
+	"context"
+	"crypto/tls"
+	"net/http"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/dgrijalva/jwt-go"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/adaptors_test/authserver"
+	"github.com/int128/kubelogin/adaptors_test/keys"
+	"github.com/int128/kubelogin/adaptors_test/kubeconfig"
+	"github.com/int128/kubelogin/adaptors_test/logger"
+	"github.com/int128/kubelogin/di"
+)
+
+// Run the integration tests.
+//
+// 1. Start the auth server at port 9000.
+// 2. Run the Cmd.
+// 3. Open a request for port 8000.
+// 4. Wait for the Cmd.
+// 5. Shutdown the auth server.
+//
+func TestCmd_Run(t *testing.T) {
+	timeout := 1 * time.Second
+
+	t.Run("NoTLS", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		idToken := newIDToken(t, "http://localhost:9000")
+		serverConfig := authserver.Config{
+			Issuer:         "http://localhost:9000",
+			IDToken:        idToken,
+			IDTokenKeyPair: keys.JWSKeyPair,
+			RefreshToken:   "REFRESH_TOKEN",
+		}
+		server := authserver.Start(t, serverConfig)
+		defer server.Shutdown(ctx)
+
+		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
+			Issuer: "http://localhost:9000",
+		})
+		defer os.Remove(kubeConfigFilename)
+
+		startBrowserRequest(t, ctx, nil)
+		runCmd(t, ctx, "--kubeconfig", kubeConfigFilename, "--skip-open-browser")
+		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
+			IDToken:      idToken,
+			RefreshToken: "REFRESH_TOKEN",
+		})
+	})
+
+	t.Run("ExtraScopes", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		idToken := newIDToken(t, "http://localhost:9000")
+		serverConfig := authserver.Config{
+			Issuer:         "http://localhost:9000",
+			IDToken:        idToken,
+			IDTokenKeyPair: keys.JWSKeyPair,
+			RefreshToken:   "REFRESH_TOKEN",
+			Scope:          "profile groups openid",
+		}
+		server := authserver.Start(t, serverConfig)
+		defer server.Shutdown(ctx)
+
+		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
+			Issuer:      "http://localhost:9000",
+			ExtraScopes: "profile,groups",
+		})
+		defer os.Remove(kubeConfigFilename)
+
+		startBrowserRequest(t, ctx, nil)
+		runCmd(t, ctx, "--kubeconfig", kubeConfigFilename, "--skip-open-browser")
+		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
+			IDToken:      idToken,
+			RefreshToken: "REFRESH_TOKEN",
+		})
+	})
+
+	t.Run("CACert", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		idToken := newIDToken(t, "https://localhost:9000")
+		serverConfig := authserver.Config{
+			Issuer:         "https://localhost:9000",
+			IDToken:        idToken,
+			IDTokenKeyPair: keys.JWSKeyPair,
+			RefreshToken:   "REFRESH_TOKEN",
+			TLSServerCert:  keys.TLSServerCert,
+			TLSServerKey:   keys.TLSServerKey,
+		}
+		server := authserver.Start(t, serverConfig)
+		defer server.Shutdown(ctx)
+
+		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
+			Issuer:                  "https://localhost:9000",
+			IDPCertificateAuthority: keys.TLSCACert,
+		})
+		defer os.Remove(kubeConfigFilename)
+
+		startBrowserRequest(t, ctx, keys.TLSCACertAsConfig)
+		runCmd(t, ctx, "--kubeconfig", kubeConfigFilename, "--skip-open-browser")
+		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
+			IDToken:      idToken,
+			RefreshToken: "REFRESH_TOKEN",
+		})
+	})
+
+	t.Run("CACertData", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		idToken := newIDToken(t, "https://localhost:9000")
+		serverConfig := authserver.Config{
+			Issuer:         "https://localhost:9000",
+			IDToken:        idToken,
+			IDTokenKeyPair: keys.JWSKeyPair,
+			RefreshToken:   "REFRESH_TOKEN",
+			TLSServerCert:  keys.TLSServerCert,
+			TLSServerKey:   keys.TLSServerKey,
+		}
+		server := authserver.Start(t, serverConfig)
+		defer server.Shutdown(ctx)
+
+		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
+			Issuer:                      "https://localhost:9000",
+			IDPCertificateAuthorityData: keys.TLSCACertAsBase64,
+		})
+		defer os.Remove(kubeConfigFilename)
+
+		startBrowserRequest(t, ctx, keys.TLSCACertAsConfig)
+		runCmd(t, ctx, "--kubeconfig", kubeConfigFilename, "--skip-open-browser")
+		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
+			IDToken:      idToken,
+			RefreshToken: "REFRESH_TOKEN",
+		})
+	})
+
+	t.Run("AlreadyHaveValidToken", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), timeout)
+		defer cancel()
+
+		serverConfig := authserver.Config{
+			Issuer:         "http://localhost:9000",
+			IDTokenKeyPair: keys.JWSKeyPair,
+		}
+		server := authserver.Start(t, serverConfig)
+		defer server.Shutdown(ctx)
+
+		idToken := newIDToken(t, "http://localhost:9000")
+		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
+			Issuer:  "http://localhost:9000",
+			IDToken: idToken,
+		})
+		defer os.Remove(kubeConfigFilename)
+
+		runCmd(t, ctx, "--kubeconfig", kubeConfigFilename, "--skip-open-browser")
+		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
+			IDToken: idToken,
+		})
+	})
+}
+
+func newIDToken(t *testing.T, issuer string) string {
+	t.Helper()
+	var claims struct {
+		jwt.StandardClaims
+		Groups []string `json:"groups"`
+	}
+	claims.StandardClaims = jwt.StandardClaims{
+		Issuer:    issuer,
+		Audience:  "kubernetes",
+		ExpiresAt: time.Now().Add(time.Hour).Unix(),
+		Subject:   "SUBJECT",
+		IssuedAt:  time.Now().Unix(),
+	}
+	claims.Groups = []string{"admin", "users"}
+	token := jwt.NewWithClaims(jwt.SigningMethodRS256, claims)
+	s, err := token.SignedString(keys.JWSKeyPair)
+	if err != nil {
+		t.Fatalf("Could not sign the claims: %s", err)
+	}
+	return s
+}
+
+func runCmd(t *testing.T, ctx context.Context, args ...string) {
+	t.Helper()
+	newLogger := func() adaptors.Logger {
+		return logger.New(t)
+	}
+	if err := di.InvokeWithExtra(func(cmd adaptors.Cmd) {
+		exitCode := cmd.Run(ctx, append([]string{"kubelogin", "--v=1"}, args...), "HEAD")
+		if exitCode != 0 {
+			t.Errorf("exit status wants 0 but %d", exitCode)
+		}
+	}, newLogger); err != nil {
+		t.Errorf("Invoke returned error: %+v", err)
+	}
+}
+
+func startBrowserRequest(t *testing.T, ctx context.Context, tlsConfig *tls.Config) {
+	t.Helper()
+	client := http.Client{Transport: &http.Transport{TLSClientConfig: tlsConfig}}
+	req, err := http.NewRequest("GET", "http://localhost:8000/", nil)
+	if err != nil {
+		t.Errorf("could not create a request: %s", err)
+		return
+	}
+	req = req.WithContext(ctx)
+	go func() {
+		time.Sleep(50 * time.Millisecond)
+		resp, err := client.Do(req)
+		if err != nil {
+			t.Errorf("could not send a request: %s", err)
+			return
+		}
+		defer resp.Body.Close()
+		if resp.StatusCode != 200 {
+			t.Errorf("StatusCode wants 200 but %d", resp.StatusCode)
+		}
+	}()
+}
--- a/adaptors_test/keys/keys.go
+++ b/adaptors_test/keys/keys.go
@@ -0,0 +1,71 @@
+package keys
+
+import (
+	"crypto/rsa"
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
+	"io/ioutil"
+
+	"github.com/pkg/errors"
+)
+
+// TLSCACert is path to the CA certificate.
+// This should be generated by Makefile before test.
+const TLSCACert = "keys/testdata/ca.crt"
+
+// TLSCACertAsBase64 is a base64 encoded string of TLSCACert.
+var TLSCACertAsBase64 string
+
+// TLSCACertAsConfig is a TLS config including TLSCACert.
+var TLSCACertAsConfig = &tls.Config{RootCAs: x509.NewCertPool()}
+
+// TLSServerCert is path to the server certificate.
+// This should be generated by Makefile before test.
+const TLSServerCert = "keys/testdata/server.crt"
+
+// TLSServerKey is path to the server key.
+// This should be generated by Makefile before test.
+const TLSServerKey = "keys/testdata/server.key"
+
+// JWSKey is path to the key for signing ID tokens.
+const JWSKey = "keys/testdata/jws.key"
+
+// JWSKeyPair is the key pair loaded from JWSKey.
+var JWSKeyPair *rsa.PrivateKey
+
+func init() {
+	var err error
+	JWSKeyPair, err = readPrivateKey(JWSKey)
+	if err != nil {
+		panic(err)
+	}
+	b, err := ioutil.ReadFile(TLSCACert)
+	if err != nil {
+		panic(err)
+	}
+	TLSCACertAsBase64 = base64.StdEncoding.EncodeToString(b)
+	if !TLSCACertAsConfig.RootCAs.AppendCertsFromPEM(b) {
+		panic("could not append the CA cert")
+	}
+}
+
+func readPrivateKey(name string) (*rsa.PrivateKey, error) {
+	b, err := ioutil.ReadFile(name)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read JWSKey")
+	}
+	block, rest := pem.Decode(b)
+	if block == nil {
+		return nil, errors.New("could not decode PEM")
+	}
+	if len(rest) > 0 {
+		return nil, errors.New("PEM should contain single key but multiple keys")
+	}
+	k, err := x509.ParsePKCS1PrivateKey(block.Bytes)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not parse the key")
+	}
+	return k, nil
+}
--- a/adaptors_test/keys/testdata/.gitignore
+++ b/adaptors_test/keys/testdata/.gitignore
@@ -0,0 +1,4 @@
+/CA
+*.key
+*.csr
+*.crt
--- a/adaptors_test/keys/testdata/Makefile
+++ b/adaptors_test/keys/testdata/Makefile
@@ -0,0 +1,53 @@
+.PHONY: clean
+
+all: server.crt ca.crt jws.key
+
+clean:
+	rm -v ca.* server.*
+
+ca.key:
+	openssl genrsa -out $@ 1024
+
+ca.csr: openssl.cnf ca.key
+	openssl req -config openssl.cnf \
+		-new \
+		-key ca.key \
+		-subj "/CN=Hello CA" \
+		-out $@
+	openssl req -noout -text -in $@
+
+ca.crt: ca.csr ca.key
+	openssl x509 -req \
+		-signkey ca.key \
+		-in ca.csr \
+		-out $@
+	openssl x509 -text -in $@
+
+server.key:
+	openssl genrsa -out $@ 1024
+
+server.csr: openssl.cnf server.key
+	openssl req -config openssl.cnf \
+		-new \
+		-key server.key \
+		-subj "/CN=localhost" \
+		-out $@
+	openssl req -noout -text -in $@
+
+server.crt: openssl.cnf server.csr ca.key ca.crt
+	rm -fr ./CA
+	mkdir -p ./CA
+	touch CA/index.txt
+	touch CA/index.txt.attr
+	echo 00 > CA/serial
+	openssl ca -config openssl.cnf \
+		-extensions v3_req \
+		-batch \
+		-cert ca.crt \
+		-keyfile ca.key \
+		-in server.csr \
+		-out $@
+	openssl x509 -text -in $@
+
+jws.key:
+	openssl genrsa -out $@ 1024
--- a/adaptors_test/keys/testdata/openssl.cnf
+++ b/adaptors_test/keys/testdata/openssl.cnf
@@ -0,0 +1,37 @@
+[ ca ]
+default_ca      = CA_default
+
+[ CA_default ]
+dir             = ./CA
+certs           = $dir
+crl_dir         = $dir
+database        = $dir/index.txt
+new_certs_dir   = $dir
+default_md      = sha256
+policy          = policy_match
+serial          = $dir/serial
+default_days    = 365
+
+[ policy_match ]
+countryName             = optional
+stateOrProvinceName     = optional
+organizationName        = optional
+organizationalUnitName  = optional
+commonName              = supplied
+emailAddress            = optional
+
+[ req ]
+distinguished_name	= req_distinguished_name
+req_extensions = v3_req
+x509_extensions = v3_ca
+
+[ req_distinguished_name ]
+commonName			= Common Name (e.g. server FQDN or YOUR name)
+
+[ v3_req ]
+basicConstraints = CA:FALSE
+keyUsage = nonRepudiation, digitalSignature, keyEncipherment
+subjectAltName = DNS:localhost
+
+[ v3_ca ]
+basicConstraints = CA:true
--- a/integration_test/kubeconfig/kubeconfig.go
+++ b/integration_test/kubeconfig/kubeconfig.go
@@ -2,11 +2,11 @@ package kubeconfig

 import (
 	"html/template"
+	"io/ioutil"
 	"os"
-	"path/filepath"
 	"testing"

-	"gopkg.in/yaml.v3"
+	"gopkg.in/yaml.v2"
 )

 // Values represents values in .kubeconfig template.
@@ -16,14 +16,12 @@ type Values struct {
 	IDPCertificateAuthority     string
 	IDPCertificateAuthorityData string
 	IDToken                     string
-	RefreshToken                string
 }

 // Create creates a kubeconfig file and returns path to it.
 func Create(t *testing.T, v *Values) string {
 	t.Helper()
-	name := filepath.Join(t.TempDir(), "kubeconfig")
-	f, err := os.Create(name)
+	f, err := ioutil.TempFile("", "kubeconfig")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -35,7 +33,7 @@ func Create(t *testing.T, v *Values) string {
 	if err := tpl.Execute(f, v); err != nil {
 		t.Fatal(err)
 	}
-	return name
+	return f.Name()
 }

 type AuthProviderConfig struct {
--- a/integration_test/kubeconfig/testdata/kubeconfig.yaml
+++ b/integration_test/kubeconfig/testdata/kubeconfig.yaml
@@ -30,8 +30,5 @@ users:
 #{{ end }}
 #{{ if .IDToken }}
        id-token: {{ .IDToken }}
-#{{ end }}
-#{{ if .RefreshToken }}
-        refresh-token: {{ .RefreshToken }}
 #{{ end }}
      name: oidc
--- a/adaptors_test/logger/logger.go
+++ b/adaptors_test/logger/logger.go
@@ -0,0 +1,21 @@
+package logger
+
+import (
+	"github.com/int128/kubelogin/adaptors"
+)
+
+func New(t testingLogger) *adaptors.Logger {
+	return adaptors.NewLoggerWith(&bridge{t})
+}
+
+type testingLogger interface {
+	Logf(format string, v ...interface{})
+}
+
+type bridge struct {
+	t testingLogger
+}
+
+func (b *bridge) Printf(format string, v ...interface{}) {
+	b.t.Logf(format, v...)
+}
--- a/di/di.go
+++ b/di/di.go
@@ -0,0 +1,42 @@
+// Package di provides dependency injection.
+package di
+
+import (
+	"github.com/int128/kubelogin/adaptors"
+	adaptorsInterfaces "github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/usecases"
+	"github.com/pkg/errors"
+	"go.uber.org/dig"
+)
+
+var constructors = []interface{}{
+	usecases.NewLogin,
+
+	adaptors.NewCmd,
+	adaptors.NewKubeConfig,
+	adaptors.NewOIDC,
+	adaptors.NewHTTP,
+}
+
+var extraConstructors = []interface{}{
+	adaptors.NewLogger,
+}
+
+// Invoke runs the function with the default constructors.
+func Invoke(f func(cmd adaptorsInterfaces.Cmd)) error {
+	return InvokeWithExtra(f, extraConstructors...)
+}
+
+// InvokeWithExtra runs the function with the given constructors.
+func InvokeWithExtra(f func(cmd adaptorsInterfaces.Cmd), extra ...interface{}) error {
+	c := dig.New()
+	for _, constructor := range append(constructors, extra...) {
+		if err := c.Provide(constructor); err != nil {
+			return errors.Wrapf(err, "could not provide the constructor")
+		}
+	}
+	if err := c.Invoke(f); err != nil {
+		return errors.Wrapf(err, "could not invoke")
+	}
+	return nil
+}
--- a/di/di_test.go
+++ b/di/di_test.go
@@ -0,0 +1,18 @@
+package di_test
+
+import (
+	"testing"
+
+	adaptors "github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/di"
+)
+
+func TestInvoke(t *testing.T) {
+	if err := di.Invoke(func(cmd adaptors.Cmd) {
+		if cmd == nil {
+			t.Errorf("cmd wants non-nil but nil")
+		}
+	}); err != nil {
+		t.Fatalf("Invoke returned error: %+v", err)
+	}
+}
--- a/docs/credential-plugin-diagram.svg
+++ b/docs/credential-plugin-diagram.svg
--- a/docs/google.md
+++ b/docs/google.md
@@ -0,0 +1,100 @@
+# Getting Started with Google Identity Platform
+
+## Prerequisite
+
+- You have a Google account.
+- You have the Cluster Admin role of the Kubernetes cluster.
+- You can configure the Kubernetes API server.
+- `kubectl` and `kubelogin` are installed to your computer.
+
+## 1. Setup Google API
+
+Open [Google APIs Console](https://console.developers.google.com/apis/credentials) and create an OAuth client with the following setting:
+
+- Application Type: Other
+
+## 2. Setup Kubernetes API server
+
+Configure your Kubernetes API Server accepts [OpenID Connect Tokens](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#openid-connect-tokens).
+
+### kops
+
+If you are using [kops](https://github.com/kubernetes/kops), run `kops edit cluster` and append the following settings:
+
+```yaml
+spec:
+  kubeAPIServer:
+    oidcIssuerURL: https://accounts.google.com
+    oidcClientID: YOUR_CLIENT_ID.apps.googleusercontent.com
+```
+
+## 3. Setup Kubernetes cluster
+
+Here assign the `cluster-admin` role to you.
+
+```yaml
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: oidc-admin-group
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: User
+  name: https://accounts.google.com#1234567890
+```
+
+You can create a custom role and assign it as well.
+
+## 4. Setup kubectl
+
+Configure `kubectl` for the OIDC authentication.
+
+```sh
+kubectl config set-credentials NAME \
+  --auth-provider oidc \
+  --auth-provider-arg idp-issuer-url=https://accounts.google.com \
+  --auth-provider-arg client-id=YOUR_CLIENT_ID.apps.googleusercontent.com \
+  --auth-provider-arg client-secret=YOUR_CLIENT_SECRET
+```
+
+## 5. Run kubelogin
+
+Run `kubelogin`.
+
+```
+% kubelogin
+2018/08/10 10:36:38 Reading .kubeconfig
+2018/08/10 10:36:38 Using current context: hello.k8s.local
+2018/08/10 10:36:41 Open http://localhost:8000 for authorization
+2018/08/10 10:36:45 GET /
+2018/08/10 10:37:07 GET /?state=...&session_state=...&code=ey...
+2018/08/10 10:37:08 Updated .kubeconfig
+```
+
+Now your `~/.kube/config` should be like:
+
+```yaml
+users:
+- name: hello.k8s.local
+  user:
+    auth-provider:
+      config:
+        idp-issuer-url: https://accounts.google.com
+        client-id: YOUR_CLIENT_ID.apps.googleusercontent.com
+        client-secret: YOUR_SECRET
+        id-token: ey...       # kubelogin will update ID token here
+        refresh-token: ey...  # kubelogin will update refresh token here
+      name: oidc
+```
+
+Make sure you can access to the Kubernetes cluster.
+
+```
+% kubectl get nodes
+NAME                                    STATUS    ROLES     AGE       VERSION
+ip-1-2-3-4.us-west-2.compute.internal   Ready     node      21d       v1.9.6
+ip-1-2-3-5.us-west-2.compute.internal   Ready     node      20d       v1.9.6
+```
--- a/docs/keycloak-login.png
+++ b/docs/keycloak-login.png
--- a/docs/keycloak.md
+++ b/docs/keycloak.md
@@ -0,0 +1,107 @@
+# Getting Started with Keycloak
+
+## Prerequisite
+
+- You have administrator access to the Keycloak.
+- You have the Cluster Admin role of the Kubernetes cluster.
+- You can configure the Kubernetes API server.
+- `kubectl` and `kubelogin` are installed to your computer.
+
+## 1. Setup Keycloak
+
+Open the Keycloak and create an OIDC client as follows:
+
+- Redirect URL: `http://localhost:8000/`
+- Issuer URL: `https://keycloak.example.com/auth/realms/YOUR_REALM`
+- Client ID: `kubernetes`
+- Groups claim: `groups`
+
+Create a group `kubernetes:admin` and join to it.
+This is used for group based access control.
+
+## 2. Setup Kubernetes API server
+
+Configure your Kubernetes API server accepts [OpenID Connect Tokens](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#openid-connect-tokens).
+
+### kops
+
+If you are using [kops](https://github.com/kubernetes/kops), run `kops edit cluster` and append the following settings:
+
+```yaml
+spec:
+  kubeAPIServer:
+    oidcIssuerURL: https://keycloak.example.com/auth/realms/YOUR_REALM
+    oidcClientID: kubernetes
+    oidcGroupsClaim: groups
+```
+
+## 3. Setup Kubernetes cluster
+
+Here assign the `cluster-admin` role to the `kubernetes:admin` group.
+
+```yaml
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: keycloak-admin-group
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- kind: Group
+  name: /kubernetes:admin
+```
+
+You can create a custom role and assign it as well.
+
+## 4. Setup kubectl
+
+Configure `kubectl` for the OIDC authentication.
+
+```sh
+kubectl config set-credentials NAME \
+  --auth-provider oidc \
+  --auth-provider-arg idp-issuer-url=https://keycloak.example.com/auth/realms/YOUR_REALM \
+  --auth-provider-arg client-id=kubernetes \
+  --auth-provider-arg client-secret=YOUR_CLIENT_SECRET
+```
+
+## 5. Run kubelogin
+
+Run `kubelogin`.
+
+```
+% kubelogin
+2018/08/10 10:36:38 Reading .kubeconfig
+2018/08/10 10:36:38 Using current context: hello.k8s.local
+2018/08/10 10:36:41 Open http://localhost:8000 for authorization
+2018/08/10 10:36:45 GET /
+2018/08/10 10:37:07 GET /?state=...&session_state=...&code=ey...
+2018/08/10 10:37:08 Updated .kubeconfig
+```
+
+Now your `~/.kube/config` should be like:
+
+```yaml
+users:
+- name: hello.k8s.local
+  user:
+    auth-provider:
+      config:
+        idp-issuer-url: https://keycloak.example.com/auth/realms/YOUR_REALM
+        client-id: kubernetes
+        client-secret: YOUR_SECRET
+        id-token: ey...       # kubelogin will update ID token here
+        refresh-token: ey...  # kubelogin will update refresh token here
+      name: oidc
+```
+
+Make sure you can access to the Kubernetes cluster.
+
+```
+% kubectl get nodes
+NAME                                    STATUS    ROLES     AGE       VERSION
+ip-1-2-3-4.us-west-2.compute.internal   Ready     node      21d       v1.9.6
+ip-1-2-3-5.us-west-2.compute.internal   Ready     node      20d       v1.9.6
+```
--- a/docs/setup.md
+++ b/docs/setup.md
@@ -1,245 +0,0 @@
-# Kubernetes OpenID Connection authentication
-
-This document guides how to set up Kubernetes OpenID Connect (OIDC) authentication.
-Let's see the following steps:
-
-1. Set up the OIDC provider
-1. Verify authentication
-1. Bind a cluster role
-1. Set up the Kubernetes API server
-1. Set up the kubeconfig
-1. Verify cluster access
-
-
-## 1. Set up the OIDC provider
-
-### Google Identity Platform
-
-You can log in with a Google account.
-
-Open [Google APIs Console](https://console.developers.google.com/apis/credentials) and create an OAuth client with the following setting:
-
- Application Type: Other
-
-Check the client ID and secret.
-Replace the following variables in the later sections.
-
-Variable                | Value
------------------------|------
-`ISSUER_URL`            | `https://accounts.google.com`
-`YOUR_CLIENT_ID`        | `xxx.apps.googleusercontent.com`
-`YOUR_CLIENT_SECRET`    | random string
-
-### Keycloak
-
-You can log in with a user of Keycloak.
-Make sure you have an administrator role of the Keycloak realm.
-
-Open Keycloak and create an OIDC client as follows:
-
- Client ID: `YOUR_CLIENT_ID`
- Valid Redirect URLs:
-    - `http://localhost:8000`
-    - `http://localhost:18000` (used if the port 8000 is already in use)
- Issuer URL: `https://keycloak.example.com/auth/realms/YOUR_REALM`
-
-You can associate client roles by adding the following mapper:
-
- Name: `groups`
- Mapper Type: `User Client Role`
- Client ID: `YOUR_CLIENT_ID`
- Client Role prefix: `kubernetes:`
- Token Claim Name: `groups`
- Add to ID token: on
-
-For example, if you have `admin` role of the client, you will get a JWT with the claim `{"groups": ["kubernetes:admin"]}`.
-
-Replace the following variables in the later sections.
-
-Variable                | Value
------------------------|------
-`ISSUER_URL`            | `https://keycloak.example.com/auth/realms/YOUR_REALM`
-`YOUR_CLIENT_ID`        | `YOUR_CLIENT_ID`
-`YOUR_CLIENT_SECRET`    | random string
-
-### Dex with GitHub
-
-You can log in with a GitHub account.
-
-Open [GitHub OAuth Apps](https://github.com/settings/developers) and create an application with the following setting:
-
- Application name: (any)
- Homepage URL: `https://dex.example.com`
- Authorization callback URL: `https://dex.example.com/callback`
-
-Deploy [Dex](https://github.com/dexidp/dex) with the following config:
-
-```yaml
-issuer: https://dex.example.com
-connectors:
- type: github
-  id: github
-  name: GitHub
-  config:
-    clientID: YOUR_GITHUB_CLIENT_ID
-    clientSecret: YOUR_GITHUB_CLIENT_SECRET
-    redirectURI: https://dex.example.com/callback
-staticClients:
- id: YOUR_CLIENT_ID
-  name: Kubernetes
-  redirectURIs:
-  - http://localhost:8000
-  - http://localhost:18000
-  secret: YOUR_DEX_CLIENT_SECRET
-```
-
-Replace the following variables in the later sections.
-
-Variable                | Value
------------------------|------
-`ISSUER_URL`            | `https://dex.example.com`
-`YOUR_CLIENT_ID`        | `YOUR_CLIENT_ID`
-`YOUR_CLIENT_SECRET`    | `YOUR_DEX_CLIENT_SECRET`
-
-### Okta
-
-You can log in with an Okta user.
-Okta supports [the authorization code flow with PKCE](https://developer.okta.com/docs/guides/implement-auth-code-pkce/overview/)
-and this section explains how to set up it.
-
-Open your Okta organization and create an application with the following options:
-
- Application type: Native
- Initiate login URI: `http://localhost:8000`
- Login redirect URIs:
-    - `http://localhost:8000`
-    - `http://localhost:18000` (used if the port 8000 is already in use)
- Allowed grant types: Authorization Code
- Client authentication: Use PKCE (for public clients)
-
-Replace the following variables in the later sections.
-
-Variable                | Value
------------------------|------
-`ISSUER_URL`            | `https://YOUR_ORGANIZATION.okta.com`
-`YOUR_CLIENT_ID`        | random string
-
-You do not need to set `YOUR_CLIENT_SECRET`.
-
-If you need `groups` claim for access control,
-see [jetstack/okta-kubectl-auth](https://github.com/jetstack/okta-kubectl-auth/blob/master/docs/okta-setup.md) and [#250](https://github.com/int128/kubelogin/issues/250).
-
-### Ping Identity
-
-Login with an account that has permissions to create applications.
-Create an OIDC application with the following configuration:
-
- Redirect URIs:
-    - `http://localhost:8000`
-    - `http://localhost:18000` (used if the port 8000 is already in use)
- Grant type: Authorization Code
- PKCE Enforcement: Required
-
-Leverage the following variables in the next steps.
-
-Variable                | Value
------------------------|------
-`ISSUER_URL`            | `https://auth.pingone.com/<PingOne Tenant Id>/as`
-`YOUR_CLIENT_ID`        |  random string
-
-`YOUR_CLIENT_SECRET` is not required for this configuration.
-
-## 2. Verify authentication
-
-Run the following command:
-
-```sh
-kubectl oidc-login setup \
-  --oidc-issuer-url=ISSUER_URL \
-  --oidc-client-id=YOUR_CLIENT_ID \
-  --oidc-client-secret=YOUR_CLIENT_SECRET
-```
-
-It launches the browser and navigates to `http://localhost:8000`.
-Please log in to the provider.
-
-You can set extra options, for example, extra scope or CA certificate.
-See also the full options.
-
-```sh
-kubectl oidc-login setup --help
-```
-
-
-## 3. Bind a cluster role
-
-Here bind `cluster-admin` role to you.
-
-```sh
-kubectl create clusterrolebinding oidc-cluster-admin --clusterrole=cluster-admin --user='ISSUER_URL#YOUR_SUBJECT'
-```
-
-As well as you can create a custom cluster role and bind it.
-
-
-## 4. Set up the Kubernetes API server
-
-Add the following flags to kube-apiserver:
-
-```
--oidc-issuer-url=ISSUER_URL
--oidc-client-id=YOUR_CLIENT_ID
-```
-
-See [Kubernetes Authenticating: OpenID Connect Tokens](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#openid-connect-tokens) for the all flags.
-
-If you are using [kops](https://github.com/kubernetes/kops), run `kops edit cluster` and append the following settings:
-
-```yaml
-spec:
-  kubeAPIServer:
-    oidcIssuerURL: ISSUER_URL
-    oidcClientID: YOUR_CLIENT_ID
-```
-
-If you are using [kube-aws](https://github.com/kubernetes-incubator/kube-aws), append the following settings to the `cluster.yaml`:
-
-```yaml
-       oidc:
-         enabled: true
-         issuerUrl: ISSUER_URL
-         clientId: YOUR_CLIENT_ID
-```
-
-
-## 5. Set up the kubeconfig
-
-Add `oidc` user to the kubeconfig.
-
-```sh
-kubectl config set-credentials oidc \
-  --exec-api-version=client.authentication.k8s.io/v1beta1 \
-  --exec-command=kubectl \
-  --exec-arg=oidc-login \
-  --exec-arg=get-token \
-  --exec-arg=--oidc-issuer-url=ISSUER_URL \
-  --exec-arg=--oidc-client-id=YOUR_CLIENT_ID \
-  --exec-arg=--oidc-client-secret=YOUR_CLIENT_SECRET
-```
-
-
-## 6. Verify cluster access
-
-Make sure you can access the Kubernetes cluster.
-
-```sh
-kubectl --user=oidc cluster-info
-```
-
-You can switch the current context to oidc.
-
-```sh
-kubectl config set-context --current --user=oidc
-```
-
-You can share the kubeconfig to your team members for on-boarding.
--- a/docs/standalone-mode.md
+++ b/docs/standalone-mode.md
@@ -1,108 +0,0 @@
-# Standalone mode
-
-Kubelogin supports the standalone mode as well.
-It writes the token to the kubeconfig (typically `~/.kube/config`) after authentication.
-
-
-## Getting started
-
-Configure your kubeconfig like:
-
-```yaml
- name: keycloak
-  user:
-    auth-provider:
-      config:
-        client-id: YOUR_CLIENT_ID
-        client-secret: YOUR_CLIENT_SECRET
-        idp-issuer-url: https://issuer.example.com
-      name: oidc
-```
-
-Run kubelogin:
-
-```sh
-kubelogin
-
-# or run as a kubectl plugin
-kubectl oidc-login
-```
-
-It automatically opens the browser and you can log in to the provider.
-
-<img src="keycloak-login.png" alt="keycloak-login" width="455" height="329">
-
-After authentication, kubelogin writes the ID token and refresh token to the kubeconfig.
-
-```console
-% kubelogin
-Open http://localhost:8000 for authentication
-You got a valid token until 2019-05-18 10:28:51 +0900 JST
-Updated ~/.kubeconfig
-```
-
-Now you can access the cluster.
-
-```console
-% kubectl get pods
-NAME                          READY   STATUS    RESTARTS   AGE
-echoserver-86c78fdccd-nzmd5   1/1     Running   0          26d
-```
-
-Your kubeconfig looks like:
-
-```yaml
-users:
- name: keycloak
-  user:
-    auth-provider:
-      config:
-        client-id: YOUR_CLIENT_ID
-        client-secret: YOUR_CLIENT_SECRET
-        idp-issuer-url: https://issuer.example.com
-        id-token: ey...       # kubelogin will add or update the ID token here
-        refresh-token: ey...  # kubelogin will add or update the refresh token here
-      name: oidc
-```
-
-If the ID token is valid, kubelogin does nothing.
-
-```console
-% kubelogin
-You already have a valid token until 2019-05-18 10:28:51 +0900 JST
-```
-
-If the ID token has expired, kubelogin will refresh the token using the refresh token in the kubeconfig.
-If the refresh token has expired, kubelogin will proceed the authentication.
-
-
-## Usage
-
-You can set path to the kubeconfig file by the option or the environment variable just like kubectl.
-It defaults to `~/.kube/config`.
-
-```sh
-# by the option
-kubelogin --kubeconfig /path/to/kubeconfig
-
-# by the environment variable
-KUBECONFIG="/path/to/kubeconfig1:/path/to/kubeconfig2" kubelogin
-```
-
-If you set multiple files, kubelogin will find the file which has the current authentication (i.e. `user` and `auth-provider`) and write a token to it.
-
-Kubelogin supports the following keys of `auth-provider` in a kubeconfig.
-See [kubectl authentication](https://kubernetes.io/docs/reference/access-authn-authz/authentication/#using-kubectl) for more.
-
-Key | Direction | Value
----|-----------|------
-`idp-issuer-url`                  | Read (Mandatory) | Issuer URL of the provider.
-`client-id`                       | Read (Mandatory) | Client ID of the provider.
-`client-secret`                   | Read (Mandatory) | Client Secret of the provider.
-`idp-certificate-authority`       | Read | CA certificate path of the provider.
-`idp-certificate-authority-data`  | Read | Base64 encoded CA certificate of the provider.
-`extra-scopes`                    | Read | Scopes to request to the provider (comma separated).
-`id-token`                        | Write | ID token got from the provider.
-`refresh-token`                   | Write | Refresh token got from the provider.
-
-See also [usage.md](usage.md).
--- a/docs/system-test-diagram.svg
+++ b/docs/system-test-diagram.svg
--- a/docs/team_ops.md
+++ b/docs/team_ops.md
@@ -0,0 +1,40 @@
+# Team Operation
+
+## kops
+
+Export the kubeconfig.
+
+```sh
+KUBECONFIG=.kubeconfig kops export kubecfg hello.k8s.local
+```
+
+Remove the `admin` access from the kubeconfig.
+It should look as like:
+
+```yaml
+apiVersion: v1
+kind: Config
+clusters:
+  - cluster:
+      certificate-authority-data: LS...
+      server: https://api.hello.k8s.example.com
+      name: hello.k8s.local
+contexts:
+- context:
+    cluster: hello.k8s.local
+    user: hello.k8s.local
+  name: hello.k8s.local
+current-context: hello.k8s.local
+preferences: {}
+users:
+- name: hello.k8s.local
+  user:
+    auth-provider:
+      name: oidc
+      config:
+        client-id: YOUR_CLIEND_ID
+        client-secret: YOUR_CLIENT_SECRET
+        idp-issuer-url: YOUR_ISSUER
+```
+
+You can share the kubeconfig to your team members for easy onboarding.
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -1,260 +0,0 @@
-# Usage
-
-Kubelogin supports the following options:
-
-```
-Usage:
-  kubelogin get-token [flags]
-
-Flags:
-      --oidc-issuer-url string                          Issuer URL of the provider (mandatory)
-      --oidc-client-id string                           Client ID of the provider (mandatory)
-      --oidc-client-secret string                       Client secret of the provider
-      --oidc-extra-scope strings                        Scopes to request to the provider
-      --oidc-use-pkce                                   Force PKCE usage
-      --oidc-use-access-token                           Instead of using the id_token, use the access_token to authenticate to Kubernetes
-      --token-cache-dir string                          Path to a directory for token cache (default "~/.kube/cache/oidc-login")
-      --force-refresh                                   If set, refresh the ID token regardless of its expiration time
-      --certificate-authority stringArray               Path to a cert file for the certificate authority
-      --certificate-authority-data stringArray          Base64 encoded cert for the certificate authority
-      --insecure-skip-tls-verify                        If set, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
-      --tls-renegotiation-once                          If set, allow a remote server to request renegotiation once per connection
-      --tls-renegotiation-freely                        If set, allow a remote server to repeatedly request renegotiation
-      --grant-type string                               Authorization grant type to use. One of (auto|authcode|authcode-keyboard|password|device-code) (default "auto")
-      --listen-address strings                          [authcode] Address to bind to the local server. If multiple addresses are set, it will try binding in order (default [127.0.0.1:8000,127.0.0.1:18000])
-      --skip-open-browser                               [authcode] Do not open the browser automatically
-      --browser-command string                          [authcode] Command to open the browser
-      --authentication-timeout-sec int                  [authcode] Timeout of authentication in seconds (default 180)
-      --local-server-cert string                        [authcode] Certificate path for the local server
-      --local-server-key string                         [authcode] Certificate key path for the local server
-      --open-url-after-authentication string            [authcode] If set, open the URL in the browser after authentication
-      --oidc-redirect-url-hostname string               [authcode] Hostname of the redirect URL (default "localhost")
-      --oidc-redirect-url-authcode-keyboard string      [authcode-keyboard] Redirect URL (default "urn:ietf:wg:oauth:2.0:oob")
-      --oidc-auth-request-extra-params stringToString   [authcode, authcode-keyboard] Extra query parameters to send with an authentication request (default [])
-      --username string                                 [password] Username for resource owner password credentials grant
-      --password string                                 [password] Password for resource owner password credentials grant
-  -h, --help                                            help for get-token
-
-Global Flags:
-      --add_dir_header                   If true, adds the file directory to the header of the log messages
-      --alsologtostderr                  log to standard error as well as files (no effect when -logtostderr=true)
-      --log_backtrace_at traceLocation   when logging hits line file:N, emit a stack trace (default :0)
-      --log_dir string                   If non-empty, write log files in this directory (no effect when -logtostderr=true)
-      --log_file string                  If non-empty, use this log file (no effect when -logtostderr=true)
-      --log_file_max_size uint           Defines the maximum size a log file can grow to (no effect when -logtostderr=true). Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
-      --logtostderr                      log to standard error instead of files (default true)
-      --one_output                       If true, only write logs to their native severity level (vs also writing to each lower severity level; no effect when -logtostderr=true)
-      --skip_headers                     If true, avoid header prefixes in the log messages
-      --skip_log_headers                 If true, avoid headers when opening log files (no effect when -logtostderr=true)
-      --stderrthreshold severity         logs at or above this threshold go to stderr when writing to files and stderr (no effect when -logtostderr=true or -alsologtostderr=true) (default 2)
-  -v, --v Level                          number for the log level verbosity
-      --vmodule moduleSpec               comma-separated list of pattern=N settings for file-filtered logging
-```
-
-
-## Options
-
-### Authentication timeout
-
-By default, you need to log in to your provider in the browser within 3 minutes.
-This prevents a process from remaining forever.
-You can change the timeout by the following flag:
-
-```yaml
-      - --authentication-timeout-sec=60
-```
-
-For now this timeout works only for the authorization code flow.
-
-### Extra scopes
-
-You can set the extra scopes to request to the provider by `--oidc-extra-scope`.
-
-```yaml
-      - --oidc-extra-scope=email
-      - --oidc-extra-scope=profile
-```
-
-### CA certificate
-
-You can use your self-signed certificate for the provider.
-
-```yaml
-      - --certificate-authority=/home/user/.kube/keycloak-ca.pem
-      - --certificate-authority-data=LS0t...
-```
-
-### HTTP proxy
-
-You can set the following environment variables if you are behind a proxy: `HTTP_PROXY`, `HTTPS_PROXY` and `NO_PROXY`.
-See also [net/http#ProxyFromEnvironment](https://golang.org/pkg/net/http/#ProxyFromEnvironment).
-
-### Home directory expansion
-
-If a value in the following options begins with a tilde character `~`, it is expanded to the home directory.
-
- `--certificate-authority`
- `--local-server-cert`
- `--local-server-key`
- `--token-cache-dir`
-
-
-## Authentication flows
-
-Kubelogin support the following flows:
-
- Authorization code flow
- Authorization code flow with a keyboard
- Resource owner password credentials grant flow
-
-### Authorization code flow
-
-Kubelogin performs the authorization code flow by default.
-
-It starts the local server at port 8000 or 18000 by default.
-You need to register the following redirect URIs to the provider:
-
- `http://localhost:8000`
- `http://localhost:18000` (used if port 8000 is already in use)
-
-You can change the listening address.
-
-```yaml
-      - --listen-address=127.0.0.1:12345
-      - --listen-address=127.0.0.1:23456
-```
-
-You can specify a certificate for the local webserver if HTTPS is required by your identity provider.
-
-```yaml
-      - --local-server-cert=localhost.crt
-      - --local-server-key=localhost.key
-```
-
-You can change the hostname of redirect URI from the default value `localhost`.
-
-```yaml
-      - --oidc-redirect-url-hostname=127.0.0.1
-```
-
-You can add extra parameters to the authentication request.
-
-```yaml
-      - --oidc-auth-request-extra-params=ttl=86400
-```
-
-When authentication completed, kubelogin shows a message to close the browser.
-You can change the URL to show after authentication.
-
-```yaml
-      - --open-url-after-authentication=https://example.com/success.html
-```
-
-You can skip opening the browser if you encounter some environment problem.
-
-```yaml
-      - --skip-open-browser
-```
-
-For Linux users, you change the default browser by `BROWSER` environment variable.
-
-### Authorization code flow with a keyboard
-
-If you cannot access the browser, instead use the authorization code flow with a keyboard.
-
-```yaml
-      - --grant-type=authcode-keyboard
-```
-
-Kubelogin will show the URL and prompt.
-Open the URL in the browser and then copy the code shown.
-
-```
-% kubectl get pods
-Open https://accounts.google.com/o/oauth2/v2/auth?access_type=offline&client_id=...
-Enter code: YOUR_CODE
-```
-
-The default of redirect URI is `urn:ietf:wg:oauth:2.0:oob`.
-You can overwrite it.
-
-```yaml
-      - oidc-redirect-url-authcode-keyboard=http://localhost
-```
-
-You can add extra parameters to the authentication request.
-
-```yaml
-      - --oidc-auth-request-extra-params=ttl=86400
-```
-
-### Resource owner password credentials grant flow
-
-Kubelogin performs the resource owner password credentials grant flow
-when `--grant-type=password` or `--username` is set.
-
-Note that most OIDC providers do not support this flow.
-Keycloak supports this flow but you need to explicitly enable the "Direct Access Grants" feature in the client settings.
-
-You can set the username and password.
-
-```yaml
-      - --username=USERNAME
-      - --password=PASSWORD
-```
-
-If the password is not set, kubelogin will show the prompt for the password.
-
-```yaml
-      - --username=USERNAME
-```
-
-```
-% kubectl get pods
-Password:
-```
-
-If the username is not set, kubelogin will show the prompt for the username and password.
-
-```yaml
-      - --grant-type=password
-```
-
-```
-% kubectl get pods
-Username: foo
-Password:
-```
-
-## Run in Docker
-
-You can run [the Docker image](https://ghcr.io/int128/kubelogin) instead of the binary.
-The kubeconfig looks like:
-
-```yaml
-users:
- name: oidc
-  user:
-    exec:
-      apiVersion: client.authentication.k8s.io/v1beta1
-      command: docker
-      args:
-      - run
-      - --rm
-      - -v
-      - /tmp/.token-cache:/.token-cache
-      - -p
-      - 8000:8000
-      - ghcr.io/int128/kubelogin
-      - get-token
-      - --token-cache-dir=/.token-cache
-      - --listen-address=0.0.0.0:8000
-      - --oidc-issuer-url=ISSUER_URL
-      - --oidc-client-id=YOUR_CLIENT_ID
-      - --oidc-client-secret=YOUR_CLIENT_SECRET
-```
-
-Known limitations:
-
- It cannot open the browser automatically.
- The container port and listen port must be equal for consistency of the redirect URI.
--- a/go.mod
+++ b/go.mod
@@ -1,61 +1,35 @@
 module github.com/int128/kubelogin

-go 1.23.1
-
 require (
-	github.com/chromedp/chromedp v0.10.0
-	github.com/coreos/go-oidc/v3 v3.11.0
-	github.com/gofrs/flock v0.12.1
-	github.com/golang-jwt/jwt/v5 v5.2.1
-	github.com/google/go-cmp v0.6.0
-	github.com/google/wire v0.6.0
-	github.com/int128/oauth2cli v1.14.0
-	github.com/int128/oauth2dev v1.0.1
-	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c
-	github.com/spf13/cobra v1.8.1
-	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.9.0
-	golang.org/x/oauth2 v0.23.0
-	golang.org/x/sync v0.8.0
-	golang.org/x/term v0.24.0
-	gopkg.in/yaml.v3 v3.0.1
-	k8s.io/apimachinery v0.31.1
-	k8s.io/client-go v0.31.1
-	k8s.io/klog/v2 v2.130.1
-)
-
-require (
-	github.com/chromedp/cdproto v0.0.0-20240801214329-3f85d328b335 // indirect
-	github.com/chromedp/sysutil v1.0.0 // indirect
-	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
-	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
-	github.com/go-logr/logr v1.4.2 // indirect
-	github.com/gobwas/httphead v0.1.0 // indirect
-	github.com/gobwas/pool v0.2.1 // indirect
-	github.com/gobwas/ws v1.4.0 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/imdario/mergo v0.3.6 // indirect
-	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/int128/listener v1.1.0 // indirect
-	github.com/josharian/intern v1.0.0 // indirect
-	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/coreos/go-oidc v2.0.0+incompatible
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible
+	github.com/gogo/protobuf v1.2.1 // indirect
+	github.com/golang/mock v1.2.0
+	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
+	github.com/imdario/mergo v0.3.7 // indirect
+	github.com/int128/oauth2cli v1.2.1
+	github.com/jessevdk/go-flags v1.4.0
+	github.com/json-iterator/go v1.1.6 // indirect
+	github.com/mitchellh/go-homedir v1.1.0
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/stretchr/objx v0.5.2 // indirect
-	github.com/x448/float16 v0.8.4 // indirect
-	golang.org/x/crypto v0.25.0 // indirect
-	golang.org/x/net v0.27.0 // indirect
-	golang.org/x/sys v0.25.0 // indirect
-	golang.org/x/text v0.16.0 // indirect
-	golang.org/x/time v0.3.0 // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/pkg/errors v0.8.1
+	github.com/pquerna/cachecontrol v0.0.0-20180517163645-1555304b9b35 // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
+	go.uber.org/dig v1.7.0
+	golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c // indirect
+	golang.org/x/net v0.0.0-20190328230028-74de082e2cca // indirect
+	golang.org/x/oauth2 v0.0.0-20190319182350-c85d3e98c914
+	golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
-	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 // indirect
-	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
-	sigs.k8s.io/yaml v1.4.0 // indirect
+	gopkg.in/square/go-jose.v2 v2.3.0 // indirect
+	gopkg.in/yaml.v2 v2.2.2
+	k8s.io/api v0.0.0-20190222213804-5cb15d344471 // indirect
+	k8s.io/apimachinery v0.0.0-20190221213512-86fb29eff628 // indirect
+	k8s.io/client-go v10.0.0+incompatible
+	k8s.io/klog v0.2.0 // indirect
+	sigs.k8s.io/yaml v1.1.0 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,556 +1,88 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
-cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
-cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
-cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
-cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
-cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
-cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
-cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
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-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
-cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
-cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
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-cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
-cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
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-github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
-github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
-github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
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--- a/infrastructure/http.go
+++ b/infrastructure/http.go
@@ -0,0 +1,50 @@
+package infrastructure
+
+import (
+	"net/http"
+	"net/http/httputil"
+
+	"github.com/int128/kubelogin/adaptors/interfaces"
+)
+
+const (
+	logLevelDumpHeaders = 2
+	logLevelDumpBody    = 3
+)
+
+type LoggingTransport struct {
+	Base   http.RoundTripper
+	Logger adaptors.Logger
+}
+
+func (t *LoggingTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	if !t.IsDumpEnabled() {
+		return t.Base.RoundTrip(req)
+	}
+
+	reqDump, err := httputil.DumpRequestOut(req, t.IsDumpBodyEnabled())
+	if err != nil {
+		t.Logger.Debugf(logLevelDumpHeaders, "Error: could not dump the request: %s", err)
+		return t.Base.RoundTrip(req)
+	}
+	t.Logger.Debugf(logLevelDumpHeaders, "%s", string(reqDump))
+	resp, err := t.Base.RoundTrip(req)
+	if err != nil {
+		return resp, err
+	}
+	respDump, err := httputil.DumpResponse(resp, t.IsDumpBodyEnabled())
+	if err != nil {
+		t.Logger.Debugf(logLevelDumpHeaders, "Error: could not dump the response: %s", err)
+		return resp, err
+	}
+	t.Logger.Debugf(logLevelDumpHeaders, "%s", string(respDump))
+	return resp, err
+}
+
+func (t *LoggingTransport) IsDumpEnabled() bool {
+	return t.Logger.IsEnabled(logLevelDumpHeaders)
+}
+
+func (t *LoggingTransport) IsDumpBodyEnabled() bool {
+	return t.Logger.IsEnabled(logLevelDumpBody)
+}
--- a/infrastructure/http_test.go
+++ b/infrastructure/http_test.go
@@ -0,0 +1,90 @@
+package infrastructure
+
+import (
+	"bufio"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/adaptors/mock_adaptors"
+)
+
+type mockTransport struct {
+	req  *http.Request
+	resp *http.Response
+}
+
+func (t *mockTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	t.req = req
+	return t.resp, nil
+}
+
+func TestLoggingTransport_RoundTrip(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	logger := mock_adaptors.NewLogger(t, ctrl)
+	logger.EXPECT().
+		IsEnabled(gomock.Any()).
+		Return(true).
+		AnyTimes()
+
+	req := httptest.NewRequest("GET", "http://example.com/hello", nil)
+	resp, err := http.ReadResponse(bufio.NewReader(strings.NewReader(`HTTP/1.1 200 OK
+Host: example.com
+
+dummy`)), req)
+	if err != nil {
+		t.Errorf("could not create a response: %s", err)
+	}
+	defer resp.Body.Close()
+
+	transport := &LoggingTransport{
+		Base:   &mockTransport{resp: resp},
+		Logger: logger,
+	}
+	gotResp, err := transport.RoundTrip(req)
+	if err != nil {
+		t.Errorf("RoundTrip error: %s", err)
+	}
+	if gotResp != resp {
+		t.Errorf("resp wants %v but %v", resp, gotResp)
+	}
+}
+
+func TestLoggingTransport_IsDumpEnabled(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	logger := mock_adaptors.NewLogger(t, ctrl)
+	logger.EXPECT().
+		IsEnabled(adaptors.LogLevel(logLevelDumpHeaders)).
+		Return(true)
+
+	transport := &LoggingTransport{
+		Logger: logger,
+	}
+	if transport.IsDumpEnabled() != true {
+		t.Errorf("IsDumpEnabled wants true")
+	}
+}
+
+func TestLoggingTransport_IsDumpBodyEnabled(t *testing.T) {
+	ctrl := gomock.NewController(t)
+	defer ctrl.Finish()
+
+	logger := mock_adaptors.NewLogger(t, ctrl)
+	logger.EXPECT().
+		IsEnabled(adaptors.LogLevel(logLevelDumpBody)).
+		Return(true)
+
+	transport := &LoggingTransport{
+		Logger: logger,
+	}
+	if transport.IsDumpBodyEnabled() != true {
+		t.Errorf("IsDumpBodyEnabled wants true")
+	}
+}
--- a/integration_test/credetial_plugin_test.go
+++ b/integration_test/credetial_plugin_test.go
@@ -1,432 +0,0 @@
-package integration_test
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"io"
-	"os"
-	"testing"
-	"time"
-
-	"github.com/google/go-cmp/cmp"
-	"github.com/int128/kubelogin/integration_test/httpdriver"
-	"github.com/int128/kubelogin/integration_test/keypair"
-	"github.com/int128/kubelogin/integration_test/oidcserver"
-	"github.com/int128/kubelogin/pkg/di"
-	"github.com/int128/kubelogin/pkg/infrastructure/browser"
-	"github.com/int128/kubelogin/pkg/testing/clock"
-	"github.com/int128/kubelogin/pkg/testing/logger"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	clientauthenticationv1beta1 "k8s.io/client-go/pkg/apis/clientauthentication/v1beta1"
-)
-
-// Run the integration tests of the credential plugin use-case.
-//
-// 1. Start the auth server.
-// 2. Run the Cmd.
-// 3. Open a request for the local server.
-// 4. Verify the output.
-func TestCredentialPlugin(t *testing.T) {
-	timeout := 10 * time.Second
-	now := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)
-	tokenCacheDir := t.TempDir()
-
-	for name, tc := range map[string]struct {
-		keyPair keypair.KeyPair
-		args    []string
-	}{
-		"NoTLS": {},
-		"TLS": {
-			keyPair: keypair.Server,
-			args:    []string{"--certificate-authority", keypair.Server.CACertPath},
-		},
-	} {
-		httpDriverOption := httpdriver.Option{
-			TLSConfig:    tc.keyPair.TLSConfig,
-			BodyContains: "Authenticated",
-		}
-
-		t.Run(name, func(t *testing.T) {
-			t.Run("AuthCode", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{
-					Want: oidcserver.Want{
-						Scope:             "openid",
-						RedirectURIPrefix: "http://localhost:",
-					},
-					Response: oidcserver.Response{
-						IDTokenExpiry: now.Add(time.Hour),
-					},
-				})
-				var stdout bytes.Buffer
-				runGetToken(t, ctx, getTokenConfig{
-					tokenCacheDir: tokenCacheDir,
-					issuerURL:     sv.IssuerURL(),
-					httpDriver:    httpdriver.New(ctx, t, httpDriverOption),
-					now:           now,
-					stdout:        &stdout,
-					args:          tc.args,
-				})
-				assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-			})
-
-			t.Run("ROPC", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{
-					Want: oidcserver.Want{
-						Scope:             "openid",
-						RedirectURIPrefix: "http://localhost:",
-						Username:          "USER1",
-						Password:          "PASS1",
-					},
-					Response: oidcserver.Response{
-						IDTokenExpiry: now.Add(time.Hour),
-					},
-				})
-				var stdout bytes.Buffer
-				runGetToken(t, ctx, getTokenConfig{
-					tokenCacheDir: tokenCacheDir,
-					issuerURL:     sv.IssuerURL(),
-					httpDriver:    httpdriver.Zero(t),
-					now:           now,
-					stdout:        &stdout,
-					args: append([]string{
-						"--username", "USER1",
-						"--password", "PASS1",
-					}, tc.args...),
-				})
-				assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-			})
-
-			t.Run("TokenCacheLifecycle", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{})
-
-				t.Run("NoCache", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(time.Hour),
-							RefreshToken:  "REFRESH_TOKEN_1",
-						},
-					})
-					var stdout bytes.Buffer
-					runGetToken(t, ctx, getTokenConfig{
-						tokenCacheDir: tokenCacheDir,
-						issuerURL:     sv.IssuerURL(),
-						httpDriver:    httpdriver.New(ctx, t, httpDriverOption),
-						now:           now,
-						stdout:        &stdout,
-						args:          tc.args,
-					})
-					assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-				})
-				t.Run("Valid", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{})
-					var stdout bytes.Buffer
-					runGetToken(t, ctx, getTokenConfig{
-						tokenCacheDir: tokenCacheDir,
-						issuerURL:     sv.IssuerURL(),
-						httpDriver:    httpdriver.Zero(t),
-						now:           now,
-						stdout:        &stdout,
-						args:          tc.args,
-					})
-					assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-				})
-				t.Run("Refresh", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-							RefreshToken:      "REFRESH_TOKEN_1",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(3 * time.Hour),
-							RefreshToken:  "REFRESH_TOKEN_2",
-						},
-					})
-					var stdout bytes.Buffer
-					runGetToken(t, ctx, getTokenConfig{
-						tokenCacheDir: tokenCacheDir,
-						issuerURL:     sv.IssuerURL(),
-						httpDriver:    httpdriver.New(ctx, t, httpDriverOption),
-						now:           now.Add(2 * time.Hour),
-						stdout:        &stdout,
-						args:          tc.args,
-					})
-					assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(3*time.Hour))
-				})
-				t.Run("RefreshAgain", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-							RefreshToken:      "REFRESH_TOKEN_2",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(5 * time.Hour),
-						},
-					})
-					var stdout bytes.Buffer
-					runGetToken(t, ctx, getTokenConfig{
-						tokenCacheDir: tokenCacheDir,
-						issuerURL:     sv.IssuerURL(),
-						httpDriver:    httpdriver.New(ctx, t, httpDriverOption),
-						now:           now.Add(4 * time.Hour),
-						stdout:        &stdout,
-						args:          tc.args,
-					})
-					assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(5*time.Hour))
-				})
-			})
-		})
-	}
-
-	t.Run("PKCE", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:               "openid",
-				RedirectURIPrefix:   "http://localhost:",
-				CodeChallengeMethod: "S256",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry:                 now.Add(time.Hour),
-				CodeChallengeMethodsSupported: []string{"plain", "S256"},
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{BodyContains: "Authenticated"}),
-			now:           now,
-			stdout:        &stdout,
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("TLSData", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.Server, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{TLSConfig: keypair.Server.TLSConfig, BodyContains: "Authenticated"}),
-			now:           now,
-			stdout:        &stdout,
-			args:          []string{"--certificate-authority-data", keypair.Server.CACertBase64},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("ExtraScopes", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "email profile openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{BodyContains: "Authenticated"}),
-			now:           now,
-			stdout:        &stdout,
-			args: []string{
-				"--oidc-extra-scope", "email",
-				"--oidc-extra-scope", "profile",
-			},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("OpenURLAfterAuthentication", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{BodyContains: "URL=https://example.com/success"}),
-			now:           now,
-			stdout:        &stdout,
-			args:          []string{"--open-url-after-authentication", "https://example.com/success"},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("RedirectURLHostname", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://127.0.0.1:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{BodyContains: "Authenticated"}),
-			now:           now,
-			stdout:        &stdout,
-			args:          []string{"--oidc-redirect-url-hostname", "127.0.0.1"},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("RedirectURLHTTPS", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "https://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver: httpdriver.New(ctx, t, httpdriver.Option{
-				TLSConfig:    keypair.Server.TLSConfig,
-				BodyContains: "Authenticated",
-			}),
-			now:    now,
-			stdout: &stdout,
-			args: []string{
-				"--local-server-cert", keypair.Server.CertPath,
-				"--local-server-key", keypair.Server.KeyPath,
-			},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-
-	t.Run("ExtraParams", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://localhost:",
-				ExtraParams: map[string]string{
-					"ttl":    "86400",
-					"reauth": "false",
-				},
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		var stdout bytes.Buffer
-		runGetToken(t, ctx, getTokenConfig{
-			tokenCacheDir: tokenCacheDir,
-			issuerURL:     sv.IssuerURL(),
-			httpDriver:    httpdriver.New(ctx, t, httpdriver.Option{BodyContains: "Authenticated"}),
-			now:           now,
-			stdout:        &stdout,
-			args: []string{
-				"--oidc-auth-request-extra-params", "ttl=86400",
-				"--oidc-auth-request-extra-params", "reauth=false",
-			},
-		})
-		assertCredentialPluginStdout(t, &stdout, sv.LastTokenResponse().IDToken, now.Add(time.Hour))
-	})
-}
-
-type getTokenConfig struct {
-	tokenCacheDir string
-	issuerURL     string
-	httpDriver    browser.Interface
-	stdout        io.Writer
-	now           time.Time
-	args          []string
-}
-
-func runGetToken(t *testing.T, ctx context.Context, cfg getTokenConfig) {
-	cmd := di.NewCmdForHeadless(clock.Fake(cfg.now), os.Stdin, cfg.stdout, logger.New(t), cfg.httpDriver)
-	exitCode := cmd.Run(ctx, append([]string{
-		"kubelogin",
-		"get-token",
-		"--token-cache-dir", cfg.tokenCacheDir,
-		"--oidc-issuer-url", cfg.issuerURL,
-		"--oidc-client-id", "kubernetes",
-		"--listen-address", "127.0.0.1:0",
-	}, cfg.args...), "latest")
-	if exitCode != 0 {
-		t.Errorf("exit status wants 0 but %d", exitCode)
-	}
-}
-
-func assertCredentialPluginStdout(t *testing.T, stdout io.Reader, token string, expiry time.Time) {
-	var got clientauthenticationv1beta1.ExecCredential
-	if err := json.NewDecoder(stdout).Decode(&got); err != nil {
-		t.Errorf("could not decode json of the credential plugin: %s", err)
-		return
-	}
-	want := clientauthenticationv1beta1.ExecCredential{
-		TypeMeta: metav1.TypeMeta{
-			APIVersion: "client.authentication.k8s.io/v1beta1",
-			Kind:       "ExecCredential",
-		},
-		Status: &clientauthenticationv1beta1.ExecCredentialStatus{
-			Token:               token,
-			ExpirationTimestamp: &metav1.Time{Time: expiry},
-		},
-	}
-	if diff := cmp.Diff(want, got); diff != "" {
-		t.Errorf("kubeconfig mismatch (-want +got):\n%s", diff)
-	}
-}
--- a/integration_test/httpdriver/http_driver.go
+++ b/integration_test/httpdriver/http_driver.go
@@ -1,78 +0,0 @@
-// Package httpdriver provides a test double of the browser.
-package httpdriver
-
-import (
-	"context"
-	"crypto/tls"
-	"io"
-	"net/http"
-	"strings"
-	"testing"
-)
-
-type Option struct {
-	TLSConfig    *tls.Config
-	BodyContains string
-}
-
-// New returns a client to simulate browser access.
-func New(ctx context.Context, t *testing.T, o Option) *client {
-	return &client{ctx, t, o}
-}
-
-// Zero returns a client which call is not expected.
-func Zero(t *testing.T) *zeroClient {
-	return &zeroClient{t}
-}
-
-type client struct {
-	ctx context.Context
-	t   *testing.T
-	o   Option
-}
-
-func (c *client) Open(url string) error {
-	client := http.Client{Transport: &http.Transport{TLSClientConfig: c.o.TLSConfig}}
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		c.t.Errorf("could not create a request: %s", err)
-		return nil
-	}
-	req = req.WithContext(c.ctx)
-	resp, err := client.Do(req)
-	if err != nil {
-		c.t.Errorf("could not send a request: %s", err)
-		return nil
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		c.t.Errorf("StatusCode wants 200 but %d", resp.StatusCode)
-	}
-	b, err := io.ReadAll(resp.Body)
-	if err != nil {
-		c.t.Errorf("could not read body: %s", err)
-		return nil
-	}
-	body := string(b)
-	if !strings.Contains(body, c.o.BodyContains) {
-		c.t.Errorf("body should contain %s but was %s", c.o.BodyContains, body)
-	}
-	return nil
-}
-
-func (c *client) OpenCommand(_ context.Context, url, _ string) error {
-	return c.Open(url)
-}
-
-type zeroClient struct {
-	t *testing.T
-}
-
-func (c *zeroClient) Open(url string) error {
-	c.t.Errorf("unexpected function call Open(%s)", url)
-	return nil
-}
-
-func (c *zeroClient) OpenCommand(_ context.Context, url, _ string) error {
-	return c.Open(url)
-}
--- a/integration_test/keypair/keypair.go
+++ b/integration_test/keypair/keypair.go
@@ -1,61 +0,0 @@
-package keypair
-
-import (
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/base64"
-	"io"
-	"os"
-	"strings"
-)
-
-// KeyPair represents a pair of certificate and key.
-type KeyPair struct {
-	CertPath     string
-	KeyPath      string
-	CACertPath   string
-	CACertBase64 string
-	TLSConfig    *tls.Config
-}
-
-// None represents non-TLS.
-var None KeyPair
-
-// Server is a KeyPair for TLS server.
-// These files should be generated by Makefile before test.
-var Server = KeyPair{
-	CertPath:     "keypair/testdata/server.crt",
-	KeyPath:      "keypair/testdata/server.key",
-	CACertPath:   "keypair/testdata/ca.crt",
-	CACertBase64: readAsBase64("keypair/testdata/ca.crt"),
-	TLSConfig:    newTLSConfig("keypair/testdata/ca.crt"),
-}
-
-func readAsBase64(name string) string {
-	f, err := os.Open(name)
-	if err != nil {
-		panic(err)
-	}
-	defer f.Close()
-	var s strings.Builder
-	e := base64.NewEncoder(base64.StdEncoding, &s)
-	if _, err := io.Copy(e, f); err != nil {
-		panic(err)
-	}
-	if err := e.Close(); err != nil {
-		panic(err)
-	}
-	return s.String()
-}
-
-func newTLSConfig(name string) *tls.Config {
-	b, err := os.ReadFile(name)
-	if err != nil {
-		panic(err)
-	}
-	p := x509.NewCertPool()
-	if !p.AppendCertsFromPEM(b) {
-		panic("could not append the CA cert")
-	}
-	return &tls.Config{RootCAs: p}
-}
--- a/integration_test/keypair/testdata/Makefile
+++ b/integration_test/keypair/testdata/Makefile
@@ -1,26 +0,0 @@
-EXPIRY := 3650
-OUTPUT_DIR := testdata
-TARGETS := ca.key
-TARGETS += ca.crt
-TARGETS += server.key
-TARGETS += server.crt
-
-.PHONY: all
-all: $(TARGETS)
-
-ca.key:
-	openssl genrsa -out $@ 2048
-ca.csr: ca.key
-	openssl req -new -key ca.key -out $@ -subj "/CN=hello-ca" -config openssl.cnf
-ca.crt: ca.key ca.csr
-	openssl x509 -req -in ca.csr -signkey ca.key -out $@ -days $(EXPIRY)
-server.key:
-	openssl genrsa -out $@ 2048
-server.csr: openssl.cnf server.key
-	openssl req -new -key server.key -out $@ -subj "/CN=localhost" -config openssl.cnf
-server.crt: openssl.cnf server.csr ca.crt ca.key
-	openssl x509 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out $@ -sha256 -days $(EXPIRY) -extensions v3_req -extfile openssl.cnf
-
-.PHONY: clean
-clean:
-	-rm -v $(TARGETS)
--- a/integration_test/keypair/testdata/ca.crt
+++ b/integration_test/keypair/testdata/ca.crt
@@ -1,17 +0,0 @@
-----BEGIN CERTIFICATE-----
-MIICojCCAYoCCQCNsdXicWqF2DANBgkqhkiG9w0BAQUFADATMREwDwYDVQQDDAho
-ZWxsby1jYTAeFw0yMDAyMDYwMTMzMzNaFw0zMDAyMDMwMTMzMzNaMBMxETAPBgNV
-BAMMCGhlbGxvLWNhMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxcPN
-dS88B6ewqVn/m9yO74OLIwNrqMci8l7olP9XlcJhxUZs+3WZQpsSj5nC4yEx8uPQ
-bTtBKnXXVDe+8k7OsLTruu9+isTaYk4o/TZbuw/N31ZAiT0pJw8hdypTQyMLbeDr
-Vl4bbrfbYywx30DyrHxUkgzOWs459Uwc1wWu0W7M21GY4KENHFE3OAcD58FMvvrh
-vgkslATwwW4M2UtXUFJ8XHh26g/J450DU2gwNxpcSdIsvFE6zSyAxU55RElph7mE
-ru9cNWAYhCRZvlZQ2VlH7C6JQ3SHyA9RZmBbPpXhtl9zavFkGx2MEwDp/3FmUukR
-yJnS2KnAo0QdBeS1LQIDAQABMA0GCSqGSIb3DQEBBQUAA4IBAQAXGfoDwuKY4TyF
-fhKg553Y5I6VDCDc97jyW9yyfc0kvPjQc4EGQV+1eQqMSeh2THpgEEKk9hH/g35a
-grPRcBTsEWpbQd16yWyulQeyOtPeWZB2FvAigMaAdMmeXlTs6++gJ6PjPuACa2Jl
-nJ/AjCqKFxkn0yEVkPTY0c/I9A12xhCmATqIrQiK1pPowiFxQb4M8Cm0z0AkaJZr
-iW0NCOJlLzBqRpFquL4umNaIsxTmOshfM70NpQGRjKREBuK6S0qWsRR0wz4b9Rvi
-62qW4zU94q2EDIoCItjHP4twGENXJDC0vLCsKfA5AvbPzszd5/4ifYe2C00Rn7/O
-lIxrspMm
-----END CERTIFICATE-----
--- a/integration_test/keypair/testdata/ca.csr
+++ b/integration_test/keypair/testdata/ca.csr
@@ -1,17 +0,0 @@
-----BEGIN CERTIFICATE REQUEST-----
-MIICrDCCAZQCAQAwEzERMA8GA1UEAwwIaGVsbG8tY2EwggEiMA0GCSqGSIb3DQEB
-AQUAA4IBDwAwggEKAoIBAQDFw811LzwHp7CpWf+b3I7vg4sjA2uoxyLyXuiU/1eV
-wmHFRmz7dZlCmxKPmcLjITHy49BtO0EqdddUN77yTs6wtOu6736KxNpiTij9Nlu7
-D83fVkCJPSknDyF3KlNDIwtt4OtWXhtut9tjLDHfQPKsfFSSDM5azjn1TBzXBa7R
-bszbUZjgoQ0cUTc4BwPnwUy++uG+CSyUBPDBbgzZS1dQUnxceHbqD8njnQNTaDA3
-GlxJ0iy8UTrNLIDFTnlESWmHuYSu71w1YBiEJFm+VlDZWUfsLolDdIfID1FmYFs+
-leG2X3Nq8WQbHYwTAOn/cWZS6RHImdLYqcCjRB0F5LUtAgMBAAGgVDBSBgkqhkiG
-9w0BCQ4xRTBDMAkGA1UdEwQCMAAwCwYDVR0PBAQDAgXgMBQGA1UdEQQNMAuCCWxv
-Y2FsaG9zdDATBgNVHSUEDDAKBggrBgEFBQcDATANBgkqhkiG9w0BAQsFAAOCAQEA
-o/Uthp3NWx0ydTn/GBZI+vA3gI7Qd9UwLvwkeinldRlPM9DOXpG6LR0C40f6u+fj
-mXvUDerveYJI8rpo+Ds0UVqy63AH/zZLG7M96L5Nv2KnK40bkfVNez858Yqp1u17
-/ci1ZsQIElU5v2qKozaHdQThDVtD5ZZdZoQwLvBLE/Dwpe/4VZZFh8smPMR+Mhcq
-+b7gpSy1RiUffk0ZMjuF9Nc9OODdQMTCf+86i0qWXGVzkhfHKAGv+xarHEztcmxF
-GUgUYW8DMvYBjEzaGRM1n0aIFkQO6y8SUXvGMIGBSMC4jfBH3ghIXg1+nD6Uah4D
-16r+CLjFsDUdn/DK/fIQVw==
-----END CERTIFICATE REQUEST-----
--- a/integration_test/keypair/testdata/ca.key
+++ b/integration_test/keypair/testdata/ca.key
@@ -1,27 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAxcPNdS88B6ewqVn/m9yO74OLIwNrqMci8l7olP9XlcJhxUZs
-+3WZQpsSj5nC4yEx8uPQbTtBKnXXVDe+8k7OsLTruu9+isTaYk4o/TZbuw/N31ZA
-iT0pJw8hdypTQyMLbeDrVl4bbrfbYywx30DyrHxUkgzOWs459Uwc1wWu0W7M21GY
-4KENHFE3OAcD58FMvvrhvgkslATwwW4M2UtXUFJ8XHh26g/J450DU2gwNxpcSdIs
-vFE6zSyAxU55RElph7mEru9cNWAYhCRZvlZQ2VlH7C6JQ3SHyA9RZmBbPpXhtl9z
-avFkGx2MEwDp/3FmUukRyJnS2KnAo0QdBeS1LQIDAQABAoIBAHSoWtMsaMnPNlu/
-thM32K0auIGP6/rkdQ3pxGLX+M9jmY7oSzNOHHj4xssklZyroS45CmLU2Ez2tG1+
-cMm4iR4dqwxbaBbtpjDlEDLF1PiUiwmadHlANb1PpJsJwZHR41UOn2QUITR/ig+H
-K2gZhM0QjkaU/Uj9a5zyJ/UC6iupmgCtj8ij65B49qKMODxV4gqZstRSZiJ3gb6R
-TBeR3PUWQS62MZueEQz2eF0eXkXKsFWcbLfHArjfIJ533zW68A0vabgqOhCwJTks
-+rkyaKUjEwJJQcgpCfUI4t9HAwICqYtw0fQdDDaMak2XTDFnGHn1/VfSi818U5Sa
-jZ+/uIECgYEA4uCd5ISsLWebSv2r5f97N8+WcW0MSJ0XP5MniiMvlaNOtJmoN3H0
-PlgR3uwpH9TNWHITZEEb/I93r2E3f24v2018g0uJuwiRDusxHs7yuxw/93Y5rwtG
-3twL1k0GyeLCxfM2y2QQU/awXISx7nNk2f0umvTWmjrEw632oQSWCSECgYEA3yaF
-zDk7k1u1GdZAh+pQAyUtjzHSvQjiE2JzLaH8BTorACrczRascX5yyMi0QfLYnoYt
-UL9dCb4Z8HUclj55kBSx8anvVtf3XAT3hZ3sm8LV3JLGDeURGS8rGdV+tyFk7zw9
-XgvaLj3xjB5CoJvtOhbXvqF9M9yp4TMBb5El7o0CgYBTx5Bm15thNPZCrgQxbbOJ
-u42ZmyRDGEeCgYvDVhT3VBP3WxqkRt9juk/3GwxgpcuikpWYmvaDwFL5H5RH6V+g
-wy9sqJNWzuYKNU2xS8iU0ezJLA5HFon4OBfi7hTIroUwZgzg9LWW2+zqbVHrdQ9T
-9Eumiy1ITNVmUTJW6YOiIQKBgBE4BsEAdZFkVTAeMTKLqQrlFoPjI1DE27UFNsAB
-rNG2cFT9+bW1ly7WxAKsQgSIuaBZ2CtP6Nz0l0nPr5oEThsJDcYJB9faqFKoa3Ua
-/4PxX9E6Xh/6WfxogFno+HMnF4PCUTXtkjNZQkc+moOMJJ0D4DfsfB3BXDZtWiIC
-wDuNAoGBAN5ZFTXwE1VpWxIWq5dV9+0aVOP/eB+h7Pt+u2xyRip31FGcpGEzGniu
-VmOzWApW7NmvD0QWtstJWlCpsw+rOptAL0oVunlB70KuYuA+2Q5g/Cw3kUrvXqbe
-mkCoV21eFAmpU+I6z/n7pUDXPuUsmTkzmwedv0HUuNSQJmHZOMPD
-----END RSA PRIVATE KEY-----
--- a/integration_test/keypair/testdata/ca.srl
+++ b/integration_test/keypair/testdata/ca.srl
@@ -1 +0,0 @@
-9E12C7A1AF348811
--- a/integration_test/keypair/testdata/openssl.cnf
+++ b/integration_test/keypair/testdata/openssl.cnf
@@ -1,14 +0,0 @@
-[ req ]
-distinguished_name = req_distinguished_name
-req_extensions = v3_req
-
-[ req_distinguished_name ]
-
-[ v3_req ]
-basicConstraints = CA:FALSE
-keyUsage = nonRepudiation, digitalSignature, keyEncipherment
-subjectAltName = @alt_names
-extendedKeyUsage = serverAuth
-
-[alt_names]
-DNS.1 = localhost
--- a/integration_test/keypair/testdata/server.crt
+++ b/integration_test/keypair/testdata/server.crt
@@ -1,18 +0,0 @@
-----BEGIN CERTIFICATE-----
-MIIC7zCCAdegAwIBAgIJAJ4Sx6GvNIgRMA0GCSqGSIb3DQEBCwUAMBMxETAPBgNV
-BAMMCGhlbGxvLWNhMB4XDTIwMDIwNjAxMzMzM1oXDTMwMDIwMzAxMzMzM1owFDES
-MBAGA1UEAwwJbG9jYWxob3N0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC
-AQEA3CJvDbbiiY/o9lgzeABLCtZe56h2w9Dzejy02M6F7yVyphLtJr+/AxI8k5Er
-MFRitkzgIUkLn/90CZjPI3k5OnLtUAJ4XLj4gUGjziy4TKyVaU0XK41ZSbDAchbW
-349lsEgW5ZnL4qNaZeCvvbYec+RroVc6ZXCcDp4BATTkC3gSVF92+TzrrlbkZ5+W
-YVeoMpAPWDPq2zwQx4RcYlpkpI/fzLezRqjRcZJx3FDgkGuwwhzXfVUpxJ/DYLXZ
-yHCKyaT7e8YIs8e7TRekOwrLCfssfhJSdWopf6aYRZFV+2ovP0Nggn6XJNh/g1QK
-o4wzJAf6v5WMc0jEvb7EuSG+nwIDAQABo0UwQzAJBgNVHRMEAjAAMAsGA1UdDwQE
-AwIF4DAUBgNVHREEDTALgglsb2NhbGhvc3QwEwYDVR0lBAwwCgYIKwYBBQUHAwEw
-DQYJKoZIhvcNAQELBQADggEBACqlq8b7trNRtKUm1PbY7dnrAFCOnV4OT2R98s17
-Q6tmCXM1DvQ101W0ih/lh6iPyU4JM2A0kvO+gizuL/Dmvb6oh+3ox0mMLposptso
-gCE1K3SXlvlcLdM6hXRJ5+XwlSCHM6o2Y4yABnKjT6Zr+CMh86a5abDx33hkJ4QR
-6I+/iBHVLiCVv0wUF3jD/T+HxinEQrB4cQsSgKmfPClrc8n7rkWWE+MdwEL4VZCH
-ufabw178aYibVvJ8k3rushjLlftkDyCNno2rz8YWrnaxabVR0EqSPInyYQenmv2r
-/CedVKpmdH2RV8ubkwqa0s6cmpRkyu6FS2g3LviJhmm0nwQ=
-----END CERTIFICATE-----
--- a/integration_test/keypair/testdata/server.csr
+++ b/integration_test/keypair/testdata/server.csr
@@ -1,17 +0,0 @@
-----BEGIN CERTIFICATE REQUEST-----
-MIICrTCCAZUCAQAwFDESMBAGA1UEAwwJbG9jYWxob3N0MIIBIjANBgkqhkiG9w0B
-AQEFAAOCAQ8AMIIBCgKCAQEA3CJvDbbiiY/o9lgzeABLCtZe56h2w9Dzejy02M6F
-7yVyphLtJr+/AxI8k5ErMFRitkzgIUkLn/90CZjPI3k5OnLtUAJ4XLj4gUGjziy4
-TKyVaU0XK41ZSbDAchbW349lsEgW5ZnL4qNaZeCvvbYec+RroVc6ZXCcDp4BATTk
-C3gSVF92+TzrrlbkZ5+WYVeoMpAPWDPq2zwQx4RcYlpkpI/fzLezRqjRcZJx3FDg
-kGuwwhzXfVUpxJ/DYLXZyHCKyaT7e8YIs8e7TRekOwrLCfssfhJSdWopf6aYRZFV
-+2ovP0Nggn6XJNh/g1QKo4wzJAf6v5WMc0jEvb7EuSG+nwIDAQABoFQwUgYJKoZI
-hvcNAQkOMUUwQzAJBgNVHRMEAjAAMAsGA1UdDwQEAwIF4DAUBgNVHREEDTALggls
-b2NhbGhvc3QwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDQYJKoZIhvcNAQELBQADggEB
-ACUQ0j3XuUZY3fso5tEgOGVjVsTU+C4pIsEw3e1KyIB93i56ANKaq1uBLtnlWtYi
-R4RxZ3Sf08GzoEHAHpWoQ4BQ3WGDQjxSdezbudWMuNnNyvyhkh36tmmp/PLA4iZD
-Q/d1odzGWg1HMqY0/Q3hfz40MQ9IEBBm+5zKw3tLsKNIKdSdlY7Ul3Z9PUsqsOVW
-uF0LKsTMEh1CpbYnOBS2EQjComVM5kYfdQwDNh+BMok8rH7mHFYRmrwYUrU9njsM
-eoKqhLkoSu6hw1Cgd9Yru5lC541KfxsSN4Cj6rkm+Qv/5zjvIPxYZ+akSQQR9hR3
-2O9THHKqaQS0xmD+y8NjfYk=
-----END CERTIFICATE REQUEST-----
--- a/integration_test/keypair/testdata/server.key
+++ b/integration_test/keypair/testdata/server.key
@@ -1,27 +0,0 @@
-----BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEA3CJvDbbiiY/o9lgzeABLCtZe56h2w9Dzejy02M6F7yVyphLt
-Jr+/AxI8k5ErMFRitkzgIUkLn/90CZjPI3k5OnLtUAJ4XLj4gUGjziy4TKyVaU0X
-K41ZSbDAchbW349lsEgW5ZnL4qNaZeCvvbYec+RroVc6ZXCcDp4BATTkC3gSVF92
-+TzrrlbkZ5+WYVeoMpAPWDPq2zwQx4RcYlpkpI/fzLezRqjRcZJx3FDgkGuwwhzX
-fVUpxJ/DYLXZyHCKyaT7e8YIs8e7TRekOwrLCfssfhJSdWopf6aYRZFV+2ovP0Ng
-gn6XJNh/g1QKo4wzJAf6v5WMc0jEvb7EuSG+nwIDAQABAoIBAEYvWFb4C0wurOj2
-ABrvhP2Ekaesh4kxMp+zgTlqxzsTJnWarS/gjKcPBm9KJon3La3P3tnd7y3pBXcV
-2F0IBl4DTHRpBTUS6HBVnENc8LnJgK2dHZkOLPyYtRLrA0Et+A73PQ2hNmchC+5V
-b9K9oQH0Pvim1gCHocnrSIi480hQPazO9/gnHvFtu9Tdsx9kM9jgChhh5VaR+nzM
-uw6MpUSzCri3/W6K5Hz8F1lLQcZ6o3vyyFtLPjFrWT4J1UiHqAoxuCGeWTvMbGQl
-9Cg0SMX4FLBpbIoMonhM3hb9Cw3FVRGU/1i4oF+gEIGlX/v9CPT5HAZmD59rawc8
-11x7yTECgYEA8EYVGKauLHeI1nJdCoVrWI73W1wtwt6prJbzltpoAR4tb3Qu6gBX
-JQNd+Ifhl28lK6lPnCGk/SsmfiKSp/XE4IyS1GBd2LpxWj5R50GePCg4hAzk9Xyx
-M9SJAFQw73pODgu4RWFXTCOMo9crahJ6X/O+MckHqbFqqohJ8nChGDkCgYEA6oro
-Ql/ymO7UdYCay7OlzKeg8ud6XgkZ+wkpSG/5TQ0QZWVN3aSOLztEdVfh3PAqWob0
-KgVhLmq6CYwq+HSzU92bvFqCgYUMU8tYzeRboGLxyEdAGL+EW0j8wQyZKYR5cNz4
-yM0hpM6kbJ0zZqkYVM/XfRT2RTGwTMakF/FOHZcCgYEAmf4guTriuIcoAWEstniK
-Myj16ezrO1Df6Eia+B0kuUqxDhSlmL39HDDLQmU8NYU7in8qEcQSbVwBgKgB3HoM
-42nVFR5qJ2RfD9qPPar1klKo3iExgRCYtcJKyBYtgt6dNi1WvcjEXX0PP1bBcWtE
-WUjrphbUvXKDDabp1eNPrCkCgYBOw/F2APTeyS4Oe+8AQ8eFcDIMARLGK7ZO6Oe1
-TO1jI+UCuD+rFI0vbW7zHV1brkf6+OFcj0vwo6TweeMgZ0il/IFFgvva9UyLg3nC
-Q1NGDJR4Fv1+kiqn4V4IkuuI1tVVws/F16XZzA/J7g0KB/WE3fvXJMgDuskjL36C
-D+aU5wKBgQCvEg+mJYny1QiR/mQuowX34xf4CkMl7Xq9YDH7W/3AlwuPrPNHaZjh
-SvSCz9I8vV0E4ur6atazgCblnvA/G3d4r8YYx+e1l30WJHMgoZRxxHMH74tmUPAj
-Klic16BJikSQclMeFdlJqf2UHd37eEuYnxorpep8YGP7/eN1ghHWAw==
-----END RSA PRIVATE KEY-----
--- a/integration_test/kubeconfig/testdata/dummy.yaml
+++ b/integration_test/kubeconfig/testdata/dummy.yaml
@@ -1,4 +0,0 @@
-apiVersion: v1
-current-context: dummy
-kind: Config
-preferences: {}
--- a/integration_test/oidcserver/handler/handler.go
+++ b/integration_test/oidcserver/handler/handler.go
@@ -1,147 +0,0 @@
-// Package handler provides a HTTP handler for the OpenID Connect Provider.
-package handler
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"net/http"
-	"testing"
-)
-
-func New(t *testing.T, provider Provider) *Handler {
-	return &Handler{t, provider}
-}
-
-// Handler provides a HTTP handler for the OpenID Connect Provider.
-// You need to implement the Provider interface.
-// Note that this skips some security checks and is only for testing.
-type Handler struct {
-	t        *testing.T
-	provider Provider
-}
-
-func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	wr := &responseWriterRecorder{w, 200}
-	err := h.serveHTTP(wr, r)
-	if err == nil {
-		h.t.Logf("%d %s %s", wr.statusCode, r.Method, r.RequestURI)
-		return
-	}
-	if errResp := new(ErrorResponse); errors.As(err, &errResp) {
-		h.t.Logf("400 %s %s: %s", r.Method, r.RequestURI, err)
-		w.Header().Add("Content-Type", "application/json")
-		w.WriteHeader(400)
-		e := json.NewEncoder(w)
-		if err := e.Encode(errResp); err != nil {
-			h.t.Errorf("idp/handler: could not write the response: %s", err)
-		}
-		return
-	}
-	h.t.Logf("500 %s %s: %s", r.Method, r.RequestURI, err)
-	http.Error(w, err.Error(), 500)
-}
-
-type responseWriterRecorder struct {
-	http.ResponseWriter
-	statusCode int
-}
-
-func (w *responseWriterRecorder) WriteHeader(statusCode int) {
-	w.ResponseWriter.WriteHeader(statusCode)
-	w.statusCode = statusCode
-}
-
-func (h *Handler) serveHTTP(w http.ResponseWriter, r *http.Request) error {
-	m := r.Method
-	p := r.URL.Path
-	switch {
-	case m == "GET" && p == "/.well-known/openid-configuration":
-		discoveryResponse := h.provider.Discovery()
-		w.Header().Add("Content-Type", "application/json")
-		e := json.NewEncoder(w)
-		if err := e.Encode(discoveryResponse); err != nil {
-			return fmt.Errorf("could not render json: %w", err)
-		}
-	case m == "GET" && p == "/certs":
-		certificatesResponse := h.provider.GetCertificates()
-		w.Header().Add("Content-Type", "application/json")
-		e := json.NewEncoder(w)
-		if err := e.Encode(certificatesResponse); err != nil {
-			return fmt.Errorf("could not render json: %w", err)
-		}
-	case m == "GET" && p == "/auth":
-		q := r.URL.Query()
-		redirectURI, state := q.Get("redirect_uri"), q.Get("state")
-		code, err := h.provider.AuthenticateCode(AuthenticationRequest{
-			RedirectURI:         redirectURI,
-			State:               state,
-			Scope:               q.Get("scope"),
-			Nonce:               q.Get("nonce"),
-			CodeChallenge:       q.Get("code_challenge"),
-			CodeChallengeMethod: q.Get("code_challenge_method"),
-			RawQuery:            q,
-		})
-		if err != nil {
-			return fmt.Errorf("authentication error: %w", err)
-		}
-		to := fmt.Sprintf("%s?state=%s&code=%s", redirectURI, state, code)
-		http.Redirect(w, r, to, 302)
-	case m == "POST" && p == "/token":
-		if err := r.ParseForm(); err != nil {
-			return fmt.Errorf("could not parse the form: %w", err)
-		}
-		grantType := r.Form.Get("grant_type")
-		switch grantType {
-		case "authorization_code":
-			tokenResponse, err := h.provider.Exchange(TokenRequest{
-				Code:         r.Form.Get("code"),
-				CodeVerifier: r.Form.Get("code_verifier"),
-			})
-			if err != nil {
-				return fmt.Errorf("token request error: %w", err)
-			}
-			w.Header().Add("Content-Type", "application/json")
-			e := json.NewEncoder(w)
-			if err := e.Encode(tokenResponse); err != nil {
-				return fmt.Errorf("could not render json: %w", err)
-			}
-		case "password":
-			// 4.3. Resource Owner Password Credentials Grant
-			// https://tools.ietf.org/html/rfc6749#section-4.3
-			username, password, scope := r.Form.Get("username"), r.Form.Get("password"), r.Form.Get("scope")
-			tokenResponse, err := h.provider.AuthenticatePassword(username, password, scope)
-			if err != nil {
-				return fmt.Errorf("authentication error: %w", err)
-			}
-			w.Header().Add("Content-Type", "application/json")
-			e := json.NewEncoder(w)
-			if err := e.Encode(tokenResponse); err != nil {
-				return fmt.Errorf("could not render json: %w", err)
-			}
-		case "refresh_token":
-			// 12.1. Refresh Request
-			// https://openid.net/specs/openid-connect-core-1_0.html#RefreshingAccessToken
-			refreshToken := r.Form.Get("refresh_token")
-			tokenResponse, err := h.provider.Refresh(refreshToken)
-			if err != nil {
-				return fmt.Errorf("token refresh error: %w", err)
-			}
-			w.Header().Add("Content-Type", "application/json")
-			e := json.NewEncoder(w)
-			if err := e.Encode(tokenResponse); err != nil {
-				return fmt.Errorf("could not render json: %w", err)
-			}
-		default:
-			// 5.2. Error Response
-			// https://tools.ietf.org/html/rfc6749#section-5.2
-			return &ErrorResponse{
-				Code:        "invalid_grant",
-				Description: fmt.Sprintf("unknown grant_type %s", grantType),
-			}
-		}
-	default:
-		http.NotFound(w, r)
-	}
-	return nil
-}
--- a/integration_test/oidcserver/handler/types.go
+++ b/integration_test/oidcserver/handler/types.go
@@ -1,87 +0,0 @@
-package handler
-
-import (
-	"fmt"
-	"net/url"
-)
-
-// Provider provides discovery and authentication methods.
-// If an implemented method returns an ErrorResponse,
-// the handler will respond 400 and corresponding json of the ErrorResponse.
-// Otherwise, the handler will respond 500 and fail the current test.
-type Provider interface {
-	Discovery() *DiscoveryResponse
-	GetCertificates() *CertificatesResponse
-	AuthenticateCode(req AuthenticationRequest) (code string, err error)
-	Exchange(req TokenRequest) (*TokenResponse, error)
-	AuthenticatePassword(username, password, scope string) (*TokenResponse, error)
-	Refresh(refreshToken string) (*TokenResponse, error)
-}
-
-type DiscoveryResponse struct {
-	Issuer                            string   `json:"issuer"`
-	AuthorizationEndpoint             string   `json:"authorization_endpoint"`
-	TokenEndpoint                     string   `json:"token_endpoint"`
-	UserinfoEndpoint                  string   `json:"userinfo_endpoint"`
-	RevocationEndpoint                string   `json:"revocation_endpoint"`
-	JwksURI                           string   `json:"jwks_uri"`
-	ResponseTypesSupported            []string `json:"response_types_supported"`
-	SubjectTypesSupported             []string `json:"subject_types_supported"`
-	IDTokenSigningAlgValuesSupported  []string `json:"id_token_signing_alg_values_supported"`
-	ScopesSupported                   []string `json:"scopes_supported"`
-	TokenEndpointAuthMethodsSupported []string `json:"token_endpoint_auth_methods_supported"`
-	ClaimsSupported                   []string `json:"claims_supported"`
-	CodeChallengeMethodsSupported     []string `json:"code_challenge_methods_supported"`
-}
-
-type CertificatesResponse struct {
-	Keys []*CertificatesResponseKey `json:"keys"`
-}
-
-type CertificatesResponseKey struct {
-	Kty string `json:"kty"`
-	Alg string `json:"alg"`
-	Use string `json:"use"`
-	Kid string `json:"kid"`
-	N   string `json:"n"`
-	E   string `json:"e"`
-}
-
-// AuthenticationRequest represents a type of:
-// https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest
-type AuthenticationRequest struct {
-	RedirectURI         string
-	State               string
-	Scope               string // space separated string
-	Nonce               string
-	CodeChallenge       string
-	CodeChallengeMethod string
-	RawQuery            url.Values
-}
-
-// TokenRequest represents a type of:
-// https://openid.net/specs/openid-connect-core-1_0.html#TokenRequest
-type TokenRequest struct {
-	Code         string
-	CodeVerifier string
-}
-
-type TokenResponse struct {
-	AccessToken  string `json:"access_token"`
-	TokenType    string `json:"token_type"`
-	RefreshToken string `json:"refresh_token"`
-	ExpiresIn    int    `json:"expires_in"`
-	IDToken      string `json:"id_token"`
-}
-
-// ErrorResponse represents an error response described in the following section:
-// 5.2 Error Response
-// https://tools.ietf.org/html/rfc6749#section-5.2
-type ErrorResponse struct {
-	Code        string `json:"error"`
-	Description string `json:"error_description"`
-}
-
-func (err *ErrorResponse) Error() string {
-	return fmt.Sprintf("%s(%s)", err.Code, err.Description)
-}
--- a/integration_test/oidcserver/http/http.go
+++ b/integration_test/oidcserver/http/http.go
@@ -1,74 +0,0 @@
-// Package http provides a http server running on localhost for testing.
-package http
-
-import (
-	"context"
-	"net"
-	"net/http"
-	"testing"
-
-	"github.com/int128/kubelogin/integration_test/keypair"
-)
-
-func Start(t *testing.T, h http.Handler, k keypair.KeyPair) string {
-	if k == keypair.None {
-		return startNoTLS(t, h)
-	}
-	return startTLS(t, h, k)
-}
-
-func startNoTLS(t *testing.T, h http.Handler) string {
-	t.Helper()
-	l, port := newLocalhostListener(t)
-	url := "http://localhost:" + port
-	s := &http.Server{
-		Handler: h,
-	}
-	go func() {
-		err := s.Serve(l)
-		if err != nil && err != http.ErrServerClosed {
-			t.Error(err)
-		}
-	}()
-	t.Cleanup(func() {
-		if err := s.Shutdown(context.TODO()); err != nil {
-			t.Errorf("could not shutdown the server: %s", err)
-		}
-	})
-	return url
-}
-
-func startTLS(t *testing.T, h http.Handler, k keypair.KeyPair) string {
-	t.Helper()
-	l, port := newLocalhostListener(t)
-	url := "https://localhost:" + port
-	s := &http.Server{
-		Handler: h,
-	}
-	go func() {
-		err := s.ServeTLS(l, k.CertPath, k.KeyPath)
-		if err != nil && err != http.ErrServerClosed {
-			t.Error(err)
-		}
-	}()
-	t.Cleanup(func() {
-		if err := s.Shutdown(context.TODO()); err != nil {
-			t.Errorf("could not shutdown the server: %s", err)
-		}
-	})
-	return url
-}
-
-func newLocalhostListener(t *testing.T) (net.Listener, string) {
-	t.Helper()
-	l, err := net.Listen("tcp", "localhost:0")
-	if err != nil {
-		t.Fatalf("Could not create a listener: %s", err)
-	}
-	addr := l.Addr().String()
-	_, port, err := net.SplitHostPort(addr)
-	if err != nil {
-		t.Fatalf("Could not parse the address %s: %s", addr, err)
-	}
-	return l, port
-}
--- a/integration_test/oidcserver/server.go
+++ b/integration_test/oidcserver/server.go
@@ -1,216 +0,0 @@
-// Package oidcserver provides a stub of OpenID Connect provider.
-package oidcserver
-
-import (
-	"crypto/sha256"
-	"encoding/base64"
-	"fmt"
-	"math/big"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/golang-jwt/jwt/v5"
-	"github.com/int128/kubelogin/integration_test/keypair"
-	"github.com/int128/kubelogin/integration_test/oidcserver/handler"
-	"github.com/int128/kubelogin/integration_test/oidcserver/http"
-	testingJWT "github.com/int128/kubelogin/pkg/testing/jwt"
-)
-
-type Server interface {
-	IssuerURL() string
-	SetConfig(Config)
-	LastTokenResponse() *handler.TokenResponse
-}
-
-// Want represents a set of expected values.
-type Want struct {
-	Scope               string
-	RedirectURIPrefix   string
-	CodeChallengeMethod string            // optional
-	ExtraParams         map[string]string // optional
-	Username            string            // optional
-	Password            string            // optional
-	RefreshToken        string            // optional
-}
-
-// Response represents a set of response values.
-type Response struct {
-	IDTokenExpiry                 time.Time
-	RefreshToken                  string
-	RefreshError                  string   // if set, Refresh() will return the error
-	CodeChallengeMethodsSupported []string // optional
-}
-
-// Config represents a configuration of the OpenID Connect provider.
-type Config struct {
-	Want     Want
-	Response Response
-}
-
-// New starts a HTTP server for the OpenID Connect provider.
-func New(t *testing.T, k keypair.KeyPair, c Config) Server {
-	sv := server{Config: c, t: t}
-	sv.issuerURL = http.Start(t, handler.New(t, &sv), k)
-	return &sv
-}
-
-type server struct {
-	Config
-	t                         *testing.T
-	issuerURL                 string
-	lastAuthenticationRequest *handler.AuthenticationRequest
-	lastTokenResponse         *handler.TokenResponse
-}
-
-func (sv *server) IssuerURL() string {
-	return sv.issuerURL
-}
-
-func (sv *server) SetConfig(cfg Config) {
-	sv.Config = cfg
-}
-
-func (sv *server) LastTokenResponse() *handler.TokenResponse {
-	return sv.lastTokenResponse
-}
-
-func (sv *server) Discovery() *handler.DiscoveryResponse {
-	// based on https://accounts.google.com/.well-known/openid-configuration
-	return &handler.DiscoveryResponse{
-		Issuer:                            sv.issuerURL,
-		AuthorizationEndpoint:             sv.issuerURL + "/auth",
-		TokenEndpoint:                     sv.issuerURL + "/token",
-		JwksURI:                           sv.issuerURL + "/certs",
-		UserinfoEndpoint:                  sv.issuerURL + "/userinfo",
-		RevocationEndpoint:                sv.issuerURL + "/revoke",
-		ResponseTypesSupported:            []string{"code id_token"},
-		SubjectTypesSupported:             []string{"public"},
-		IDTokenSigningAlgValuesSupported:  []string{"RS256"},
-		ScopesSupported:                   []string{"openid", "email", "profile"},
-		TokenEndpointAuthMethodsSupported: []string{"client_secret_post", "client_secret_basic"},
-		CodeChallengeMethodsSupported:     sv.Config.Response.CodeChallengeMethodsSupported,
-		ClaimsSupported:                   []string{"aud", "email", "exp", "iat", "iss", "name", "sub"},
-	}
-}
-
-func (sv *server) GetCertificates() *handler.CertificatesResponse {
-	idTokenKeyPair := testingJWT.PrivateKey
-	return &handler.CertificatesResponse{
-		Keys: []*handler.CertificatesResponseKey{
-			{
-				Kty: "RSA",
-				Alg: "RS256",
-				Use: "sig",
-				Kid: "dummy",
-				E:   base64.RawURLEncoding.EncodeToString(big.NewInt(int64(idTokenKeyPair.E)).Bytes()),
-				N:   base64.RawURLEncoding.EncodeToString(idTokenKeyPair.N.Bytes()),
-			},
-		},
-	}
-}
-
-func (sv *server) AuthenticateCode(req handler.AuthenticationRequest) (code string, err error) {
-	if req.Scope != sv.Want.Scope {
-		sv.t.Errorf("scope wants `%s` but was `%s`", sv.Want.Scope, req.Scope)
-	}
-	if !strings.HasPrefix(req.RedirectURI, sv.Want.RedirectURIPrefix) {
-		sv.t.Errorf("redirectURI wants prefix `%s` but was `%s`", sv.Want.RedirectURIPrefix, req.RedirectURI)
-	}
-	if req.CodeChallengeMethod != sv.Want.CodeChallengeMethod {
-		sv.t.Errorf("code_challenge_method wants `%s` but was `%s`", sv.Want.CodeChallengeMethod, req.CodeChallengeMethod)
-	}
-	for k, v := range sv.Want.ExtraParams {
-		got := req.RawQuery.Get(k)
-		if got != v {
-			sv.t.Errorf("parameter %s wants `%s` but was `%s`", k, v, got)
-		}
-	}
-	sv.lastAuthenticationRequest = &req
-	return "YOUR_AUTH_CODE", nil
-}
-
-func (sv *server) Exchange(req handler.TokenRequest) (*handler.TokenResponse, error) {
-	if req.Code != "YOUR_AUTH_CODE" {
-		return nil, fmt.Errorf("code wants %s but was %s", "YOUR_AUTH_CODE", req.Code)
-	}
-	if sv.lastAuthenticationRequest.CodeChallengeMethod == "S256" {
-		// https://tools.ietf.org/html/rfc7636#section-4.6
-		challenge := computeS256Challenge(req.CodeVerifier)
-		if challenge != sv.lastAuthenticationRequest.CodeChallenge {
-			sv.t.Errorf("pkce S256 challenge did not match (want %s but was %s)", sv.lastAuthenticationRequest.CodeChallenge, challenge)
-		}
-	}
-	resp := &handler.TokenResponse{
-		TokenType:    "Bearer",
-		ExpiresIn:    3600,
-		AccessToken:  "YOUR_ACCESS_TOKEN",
-		RefreshToken: sv.Response.RefreshToken,
-		IDToken: testingJWT.EncodeF(sv.t, func(claims *testingJWT.Claims) {
-			claims.Issuer = sv.issuerURL
-			claims.Subject = "SUBJECT"
-			claims.IssuedAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry.Add(-time.Hour))
-			claims.ExpiresAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry)
-			claims.Audience = []string{"kubernetes"}
-			claims.Nonce = sv.lastAuthenticationRequest.Nonce
-		}),
-	}
-	sv.lastTokenResponse = resp
-	return resp, nil
-}
-
-func computeS256Challenge(verifier string) string {
-	c := sha256.Sum256([]byte(verifier))
-	return base64.URLEncoding.WithPadding(base64.NoPadding).EncodeToString(c[:])
-}
-
-func (sv *server) AuthenticatePassword(username, password, scope string) (*handler.TokenResponse, error) {
-	if scope != sv.Want.Scope {
-		sv.t.Errorf("scope wants `%s` but was `%s`", sv.Want.Scope, scope)
-	}
-	if username != sv.Want.Username {
-		sv.t.Errorf("username wants `%s` but was `%s`", sv.Want.Username, username)
-	}
-	if password != sv.Want.Password {
-		sv.t.Errorf("password wants `%s` but was `%s`", sv.Want.Password, password)
-	}
-	resp := &handler.TokenResponse{
-		TokenType:    "Bearer",
-		ExpiresIn:    3600,
-		AccessToken:  "YOUR_ACCESS_TOKEN",
-		RefreshToken: sv.Response.RefreshToken,
-		IDToken: testingJWT.EncodeF(sv.t, func(claims *testingJWT.Claims) {
-			claims.Issuer = sv.issuerURL
-			claims.Subject = "SUBJECT"
-			claims.IssuedAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry.Add(-time.Hour))
-			claims.ExpiresAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry)
-			claims.Audience = []string{"kubernetes"}
-		}),
-	}
-	sv.lastTokenResponse = resp
-	return resp, nil
-}
-
-func (sv *server) Refresh(refreshToken string) (*handler.TokenResponse, error) {
-	if refreshToken != sv.Want.RefreshToken {
-		sv.t.Errorf("refreshToken wants %s but was %s", sv.Want.RefreshToken, refreshToken)
-	}
-	if sv.Response.RefreshError != "" {
-		return nil, &handler.ErrorResponse{Code: "invalid_request", Description: sv.Response.RefreshError}
-	}
-	resp := &handler.TokenResponse{
-		TokenType:    "Bearer",
-		ExpiresIn:    3600,
-		AccessToken:  "YOUR_ACCESS_TOKEN",
-		RefreshToken: sv.Response.RefreshToken,
-		IDToken: testingJWT.EncodeF(sv.t, func(claims *testingJWT.Claims) {
-			claims.Issuer = sv.issuerURL
-			claims.Subject = "SUBJECT"
-			claims.IssuedAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry.Add(-time.Hour))
-			claims.ExpiresAt = jwt.NewNumericDate(sv.Response.IDTokenExpiry)
-			claims.Audience = []string{"kubernetes"}
-		}),
-	}
-	sv.lastTokenResponse = resp
-	return resp, nil
-}
--- a/integration_test/standalone_test.go
+++ b/integration_test/standalone_test.go
@@ -1,306 +0,0 @@
-package integration_test
-
-import (
-	"context"
-	"os"
-	"testing"
-	"time"
-
-	"github.com/int128/kubelogin/integration_test/httpdriver"
-	"github.com/int128/kubelogin/integration_test/keypair"
-	"github.com/int128/kubelogin/integration_test/kubeconfig"
-	"github.com/int128/kubelogin/integration_test/oidcserver"
-	"github.com/int128/kubelogin/pkg/di"
-	"github.com/int128/kubelogin/pkg/infrastructure/browser"
-	"github.com/int128/kubelogin/pkg/testing/clock"
-	"github.com/int128/kubelogin/pkg/testing/logger"
-)
-
-// Run the integration tests of the Login use-case.
-//
-// 1. Start the auth server.
-// 2. Run the Cmd.
-// 3. Open a request for the local server.
-// 4. Verify the kubeconfig.
-func TestStandalone(t *testing.T) {
-	timeout := 3 * time.Second
-	now := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)
-
-	for name, tc := range map[string]struct {
-		keyPair keypair.KeyPair
-		args    []string
-	}{
-		"NoTLS": {},
-		"TLS": {
-			keyPair: keypair.Server,
-		},
-	} {
-		httpDriverOption := httpdriver.Option{
-			TLSConfig:    tc.keyPair.TLSConfig,
-			BodyContains: "Authenticated",
-		}
-
-		t.Run(name, func(t *testing.T) {
-			t.Run("AuthCode", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{
-					Want: oidcserver.Want{
-						Scope:             "openid",
-						RedirectURIPrefix: "http://localhost:",
-					},
-					Response: oidcserver.Response{
-						IDTokenExpiry: now.Add(time.Hour),
-					},
-				})
-				kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-					Issuer:                  sv.IssuerURL(),
-					IDPCertificateAuthority: tc.keyPair.CACertPath,
-				})
-				runStandalone(t, ctx, standaloneConfig{
-					issuerURL:          sv.IssuerURL(),
-					kubeConfigFilename: kubeConfigFilename,
-					httpDriver:         httpdriver.New(ctx, t, httpDriverOption),
-					now:                now,
-				})
-				kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-					IDToken:      sv.LastTokenResponse().IDToken,
-					RefreshToken: sv.LastTokenResponse().RefreshToken,
-				})
-			})
-
-			t.Run("ROPC", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{
-					Want: oidcserver.Want{
-						Scope:             "openid",
-						RedirectURIPrefix: "http://localhost:",
-						Username:          "USER1",
-						Password:          "PASS1",
-					},
-					Response: oidcserver.Response{
-						IDTokenExpiry: now.Add(time.Hour),
-					},
-				})
-				kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-					Issuer:                  sv.IssuerURL(),
-					IDPCertificateAuthority: tc.keyPair.CACertPath,
-				})
-				runStandalone(t, ctx, standaloneConfig{
-					issuerURL:          sv.IssuerURL(),
-					kubeConfigFilename: kubeConfigFilename,
-					httpDriver:         httpdriver.Zero(t),
-					now:                now,
-					args: []string{
-						"--username", "USER1",
-						"--password", "PASS1",
-					},
-				})
-				kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-					IDToken:      sv.LastTokenResponse().IDToken,
-					RefreshToken: sv.LastTokenResponse().RefreshToken,
-				})
-			})
-
-			t.Run("TokenLifecycle", func(t *testing.T) {
-				t.Parallel()
-				ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-				defer cancel()
-				sv := oidcserver.New(t, tc.keyPair, oidcserver.Config{})
-				kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-					Issuer:                  sv.IssuerURL(),
-					IDPCertificateAuthority: tc.keyPair.CACertPath,
-				})
-
-				t.Run("NoToken", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(time.Hour),
-							RefreshToken:  "REFRESH_TOKEN_1",
-						},
-					})
-					runStandalone(t, ctx, standaloneConfig{
-						issuerURL:          sv.IssuerURL(),
-						kubeConfigFilename: kubeConfigFilename,
-						httpDriver:         httpdriver.New(ctx, t, httpDriverOption),
-						now:                now,
-					})
-					kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-						IDToken:      sv.LastTokenResponse().IDToken,
-						RefreshToken: "REFRESH_TOKEN_1",
-					})
-				})
-				t.Run("Valid", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{})
-					runStandalone(t, ctx, standaloneConfig{
-						issuerURL:          sv.IssuerURL(),
-						kubeConfigFilename: kubeConfigFilename,
-						httpDriver:         httpdriver.Zero(t),
-						now:                now,
-					})
-					kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-						IDToken:      sv.LastTokenResponse().IDToken,
-						RefreshToken: "REFRESH_TOKEN_1",
-					})
-				})
-				t.Run("Refresh", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-							RefreshToken:      "REFRESH_TOKEN_1",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(3 * time.Hour),
-							RefreshToken:  "REFRESH_TOKEN_2",
-						},
-					})
-					runStandalone(t, ctx, standaloneConfig{
-						issuerURL:          sv.IssuerURL(),
-						kubeConfigFilename: kubeConfigFilename,
-						httpDriver:         httpdriver.New(ctx, t, httpDriverOption),
-						now:                now.Add(2 * time.Hour),
-					})
-					kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-						IDToken:      sv.LastTokenResponse().IDToken,
-						RefreshToken: "REFRESH_TOKEN_2",
-					})
-				})
-				t.Run("RefreshAgain", func(t *testing.T) {
-					sv.SetConfig(oidcserver.Config{
-						Want: oidcserver.Want{
-							Scope:             "openid",
-							RedirectURIPrefix: "http://localhost:",
-							RefreshToken:      "REFRESH_TOKEN_2",
-						},
-						Response: oidcserver.Response{
-							IDTokenExpiry: now.Add(5 * time.Hour),
-						},
-					})
-					runStandalone(t, ctx, standaloneConfig{
-						issuerURL:          sv.IssuerURL(),
-						kubeConfigFilename: kubeConfigFilename,
-						httpDriver:         httpdriver.New(ctx, t, httpDriverOption),
-						now:                now.Add(4 * time.Hour),
-					})
-					kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-						IDToken:      sv.LastTokenResponse().IDToken,
-						RefreshToken: "REFRESH_TOKEN_2",
-					})
-				})
-			})
-		})
-	}
-
-	t.Run("TLSData", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.Server, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-			Issuer:                      sv.IssuerURL(),
-			IDPCertificateAuthorityData: keypair.Server.CACertBase64,
-		})
-		runStandalone(t, ctx, standaloneConfig{
-			issuerURL:          sv.IssuerURL(),
-			kubeConfigFilename: kubeConfigFilename,
-			httpDriver:         httpdriver.New(ctx, t, httpdriver.Option{TLSConfig: keypair.Server.TLSConfig}),
-			now:                now,
-		})
-		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-			IDToken:      sv.LastTokenResponse().IDToken,
-			RefreshToken: sv.LastTokenResponse().RefreshToken,
-		})
-	})
-
-	t.Run("env_KUBECONFIG", func(t *testing.T) {
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-			Issuer: sv.IssuerURL(),
-		})
-		t.Setenv("KUBECONFIG", kubeConfigFilename+string(os.PathListSeparator)+"kubeconfig/testdata/dummy.yaml")
-		runStandalone(t, ctx, standaloneConfig{
-			issuerURL:  sv.IssuerURL(),
-			httpDriver: httpdriver.New(ctx, t, httpdriver.Option{}),
-			now:        now,
-		})
-		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-			IDToken:      sv.LastTokenResponse().IDToken,
-			RefreshToken: sv.LastTokenResponse().RefreshToken,
-		})
-	})
-
-	t.Run("ExtraScopes", func(t *testing.T) {
-		t.Parallel()
-		ctx, cancel := context.WithTimeout(context.TODO(), timeout)
-		defer cancel()
-		sv := oidcserver.New(t, keypair.None, oidcserver.Config{
-			Want: oidcserver.Want{
-				Scope:             "profile groups openid",
-				RedirectURIPrefix: "http://localhost:",
-			},
-			Response: oidcserver.Response{
-				IDTokenExpiry: now.Add(time.Hour),
-			},
-		})
-		kubeConfigFilename := kubeconfig.Create(t, &kubeconfig.Values{
-			Issuer:      sv.IssuerURL(),
-			ExtraScopes: "profile,groups",
-		})
-		runStandalone(t, ctx, standaloneConfig{
-			issuerURL:          sv.IssuerURL(),
-			kubeConfigFilename: kubeConfigFilename,
-			httpDriver:         httpdriver.New(ctx, t, httpdriver.Option{}),
-			now:                now,
-		})
-		kubeconfig.Verify(t, kubeConfigFilename, kubeconfig.AuthProviderConfig{
-			IDToken:      sv.LastTokenResponse().IDToken,
-			RefreshToken: sv.LastTokenResponse().RefreshToken,
-		})
-	})
-}
-
-type standaloneConfig struct {
-	issuerURL          string
-	kubeConfigFilename string
-	httpDriver         browser.Interface
-	now                time.Time
-	args               []string
-}
-
-func runStandalone(t *testing.T, ctx context.Context, cfg standaloneConfig) {
-	cmd := di.NewCmdForHeadless(clock.Fake(cfg.now), os.Stdin, os.Stdout, logger.New(t), cfg.httpDriver)
-	exitCode := cmd.Run(ctx, append([]string{
-		"kubelogin",
-		"--kubeconfig", cfg.kubeConfigFilename,
-		"--listen-address", "127.0.0.1:0",
-	}, cfg.args...), "HEAD")
-	if exitCode != 0 {
-		t.Errorf("exit status wants 0 but %d", exitCode)
-	}
-}
--- a/kubeconfig/auth.go
+++ b/kubeconfig/auth.go
@@ -0,0 +1,80 @@
+package kubeconfig
+
+import (
+	"strings"
+
+	"github.com/pkg/errors"
+	"k8s.io/client-go/tools/clientcmd/api"
+)
+
+// FindOIDCAuthProvider returns the current OIDC authProvider.
+// If the context, auth-info or auth-provider does not exist, this returns an error.
+// If auth-provider is not "oidc", this returns an error.
+func FindOIDCAuthProvider(config *api.Config) (*OIDCAuthProvider, error) {
+	context := config.Contexts[config.CurrentContext]
+	if context == nil {
+		return nil, errors.Errorf("context %s does not exist", config.CurrentContext)
+	}
+	authInfo := config.AuthInfos[context.AuthInfo]
+	if authInfo == nil {
+		return nil, errors.Errorf("auth-info %s does not exist", context.AuthInfo)
+	}
+	if authInfo.AuthProvider == nil {
+		return nil, errors.Errorf("auth-provider is not set")
+	}
+	if authInfo.AuthProvider.Name != "oidc" {
+		return nil, errors.Errorf("auth-provider name is %s but must be oidc", authInfo.AuthProvider.Name)
+	}
+	return (*OIDCAuthProvider)(authInfo.AuthProvider), nil
+}
+
+// OIDCAuthProvider represents OIDC configuration in the kubeconfig.
+type OIDCAuthProvider api.AuthProviderConfig
+
+// IDPIssuerURL returns the idp-issuer-url.
+func (c *OIDCAuthProvider) IDPIssuerURL() string {
+	return c.Config["idp-issuer-url"]
+}
+
+// ClientID returns the client-id.
+func (c *OIDCAuthProvider) ClientID() string {
+	return c.Config["client-id"]
+}
+
+// ClientSecret returns the client-secret.
+func (c *OIDCAuthProvider) ClientSecret() string {
+	return c.Config["client-secret"]
+}
+
+// IDPCertificateAuthority returns the idp-certificate-authority.
+func (c *OIDCAuthProvider) IDPCertificateAuthority() string {
+	return c.Config["idp-certificate-authority"]
+}
+
+// IDPCertificateAuthorityData returns the idp-certificate-authority-data.
+func (c *OIDCAuthProvider) IDPCertificateAuthorityData() string {
+	return c.Config["idp-certificate-authority-data"]
+}
+
+// ExtraScopes returns the extra-scopes.
+func (c *OIDCAuthProvider) ExtraScopes() []string {
+	if c.Config["extra-scopes"] == "" {
+		return []string{}
+	}
+	return strings.Split(c.Config["extra-scopes"], ",")
+}
+
+// IDToken returns the id-token.
+func (c *OIDCAuthProvider) IDToken() string {
+	return c.Config["id-token"]
+}
+
+// SetIDToken replaces the id-token.
+func (c *OIDCAuthProvider) SetIDToken(idToken string) {
+	c.Config["id-token"] = idToken
+}
+
+// SetRefreshToken replaces the refresh-token.
+func (c *OIDCAuthProvider) SetRefreshToken(refreshToken string) {
+	c.Config["refresh-token"] = refreshToken
+}
--- a/kubelogin.rb
+++ b/kubelogin.rb
@@ -0,0 +1,15 @@
+class Kubelogin < Formula
+  desc "A kubectl plugin for Kubernetes OpenID Connect authentication"
+  homepage "https://github.com/int128/kubelogin"
+  url "https://github.com/int128/kubelogin/releases/download/{{ env "VERSION" }}/kubelogin_darwin_amd64.zip"
+  version "{{ env "VERSION" }}"
+  sha256 "{{ .darwin_amd64_zip_sha256 }}"
+  def install
+    bin.install "kubelogin" => "kubelogin"
+    ln_s bin/"kubelogin", bin/"kubectl-oidc_login"
+  end
+  test do
+    system "#{bin}/kubelogin -h"
+    system "#{bin}/kubectl-oidc_login -h"
+  end
+end
--- a/main.go
+++ b/main.go
@@ -2,18 +2,19 @@ package main

 import (
 	"context"
+	"log"
 	"os"
-	"os/signal"
-	"syscall"

-	"github.com/int128/kubelogin/pkg/di"
+	"github.com/int128/kubelogin/adaptors/interfaces"
+	"github.com/int128/kubelogin/di"
 )

 var version = "HEAD"

 func main() {
-	ctx := context.Background()
-	ctx, stop := signal.NotifyContext(ctx, os.Interrupt, syscall.SIGTERM)
-	defer stop()
-	os.Exit(di.NewCmd().Run(ctx, os.Args, version))
+	if err := di.Invoke(func(cmd adaptors.Cmd) {
+		os.Exit(cmd.Run(context.Background(), os.Args, version))
+	}); err != nil {
+		log.Fatalf("Error: %s", err)
+	}
 }
--- a/mocks/github.com/int128/kubelogin/integration_test/oidcserver/handler_mock/mock_Provider.go
+++ b/mocks/github.com/int128/kubelogin/integration_test/oidcserver/handler_mock/mock_Provider.go
@@ -1,361 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package handler_mock
-
-import (
-	handler "github.com/int128/kubelogin/integration_test/oidcserver/handler"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockProvider is an autogenerated mock type for the Provider type
-type MockProvider struct {
-	mock.Mock
-}
-
-type MockProvider_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockProvider) EXPECT() *MockProvider_Expecter {
-	return &MockProvider_Expecter{mock: &_m.Mock}
-}
-
-// AuthenticateCode provides a mock function with given fields: req
-func (_m *MockProvider) AuthenticateCode(req handler.AuthenticationRequest) (string, error) {
-	ret := _m.Called(req)
-
-	if len(ret) == 0 {
-		panic("no return value specified for AuthenticateCode")
-	}
-
-	var r0 string
-	var r1 error
-	if rf, ok := ret.Get(0).(func(handler.AuthenticationRequest) (string, error)); ok {
-		return rf(req)
-	}
-	if rf, ok := ret.Get(0).(func(handler.AuthenticationRequest) string); ok {
-		r0 = rf(req)
-	} else {
-		r0 = ret.Get(0).(string)
-	}
-
-	if rf, ok := ret.Get(1).(func(handler.AuthenticationRequest) error); ok {
-		r1 = rf(req)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockProvider_AuthenticateCode_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AuthenticateCode'
-type MockProvider_AuthenticateCode_Call struct {
-	*mock.Call
-}
-
-// AuthenticateCode is a helper method to define mock.On call
-//   - req handler.AuthenticationRequest
-func (_e *MockProvider_Expecter) AuthenticateCode(req interface{}) *MockProvider_AuthenticateCode_Call {
-	return &MockProvider_AuthenticateCode_Call{Call: _e.mock.On("AuthenticateCode", req)}
-}
-
-func (_c *MockProvider_AuthenticateCode_Call) Run(run func(req handler.AuthenticationRequest)) *MockProvider_AuthenticateCode_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(handler.AuthenticationRequest))
-	})
-	return _c
-}
-
-func (_c *MockProvider_AuthenticateCode_Call) Return(code string, err error) *MockProvider_AuthenticateCode_Call {
-	_c.Call.Return(code, err)
-	return _c
-}
-
-func (_c *MockProvider_AuthenticateCode_Call) RunAndReturn(run func(handler.AuthenticationRequest) (string, error)) *MockProvider_AuthenticateCode_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// AuthenticatePassword provides a mock function with given fields: username, password, scope
-func (_m *MockProvider) AuthenticatePassword(username string, password string, scope string) (*handler.TokenResponse, error) {
-	ret := _m.Called(username, password, scope)
-
-	if len(ret) == 0 {
-		panic("no return value specified for AuthenticatePassword")
-	}
-
-	var r0 *handler.TokenResponse
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string, string, string) (*handler.TokenResponse, error)); ok {
-		return rf(username, password, scope)
-	}
-	if rf, ok := ret.Get(0).(func(string, string, string) *handler.TokenResponse); ok {
-		r0 = rf(username, password, scope)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.TokenResponse)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(string, string, string) error); ok {
-		r1 = rf(username, password, scope)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockProvider_AuthenticatePassword_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AuthenticatePassword'
-type MockProvider_AuthenticatePassword_Call struct {
-	*mock.Call
-}
-
-// AuthenticatePassword is a helper method to define mock.On call
-//   - username string
-//   - password string
-//   - scope string
-func (_e *MockProvider_Expecter) AuthenticatePassword(username interface{}, password interface{}, scope interface{}) *MockProvider_AuthenticatePassword_Call {
-	return &MockProvider_AuthenticatePassword_Call{Call: _e.mock.On("AuthenticatePassword", username, password, scope)}
-}
-
-func (_c *MockProvider_AuthenticatePassword_Call) Run(run func(username string, password string, scope string)) *MockProvider_AuthenticatePassword_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string), args[1].(string), args[2].(string))
-	})
-	return _c
-}
-
-func (_c *MockProvider_AuthenticatePassword_Call) Return(_a0 *handler.TokenResponse, _a1 error) *MockProvider_AuthenticatePassword_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockProvider_AuthenticatePassword_Call) RunAndReturn(run func(string, string, string) (*handler.TokenResponse, error)) *MockProvider_AuthenticatePassword_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Discovery provides a mock function with given fields:
-func (_m *MockProvider) Discovery() *handler.DiscoveryResponse {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for Discovery")
-	}
-
-	var r0 *handler.DiscoveryResponse
-	if rf, ok := ret.Get(0).(func() *handler.DiscoveryResponse); ok {
-		r0 = rf()
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.DiscoveryResponse)
-		}
-	}
-
-	return r0
-}
-
-// MockProvider_Discovery_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Discovery'
-type MockProvider_Discovery_Call struct {
-	*mock.Call
-}
-
-// Discovery is a helper method to define mock.On call
-func (_e *MockProvider_Expecter) Discovery() *MockProvider_Discovery_Call {
-	return &MockProvider_Discovery_Call{Call: _e.mock.On("Discovery")}
-}
-
-func (_c *MockProvider_Discovery_Call) Run(run func()) *MockProvider_Discovery_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockProvider_Discovery_Call) Return(_a0 *handler.DiscoveryResponse) *MockProvider_Discovery_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockProvider_Discovery_Call) RunAndReturn(run func() *handler.DiscoveryResponse) *MockProvider_Discovery_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Exchange provides a mock function with given fields: req
-func (_m *MockProvider) Exchange(req handler.TokenRequest) (*handler.TokenResponse, error) {
-	ret := _m.Called(req)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Exchange")
-	}
-
-	var r0 *handler.TokenResponse
-	var r1 error
-	if rf, ok := ret.Get(0).(func(handler.TokenRequest) (*handler.TokenResponse, error)); ok {
-		return rf(req)
-	}
-	if rf, ok := ret.Get(0).(func(handler.TokenRequest) *handler.TokenResponse); ok {
-		r0 = rf(req)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.TokenResponse)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(handler.TokenRequest) error); ok {
-		r1 = rf(req)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockProvider_Exchange_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Exchange'
-type MockProvider_Exchange_Call struct {
-	*mock.Call
-}
-
-// Exchange is a helper method to define mock.On call
-//   - req handler.TokenRequest
-func (_e *MockProvider_Expecter) Exchange(req interface{}) *MockProvider_Exchange_Call {
-	return &MockProvider_Exchange_Call{Call: _e.mock.On("Exchange", req)}
-}
-
-func (_c *MockProvider_Exchange_Call) Run(run func(req handler.TokenRequest)) *MockProvider_Exchange_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(handler.TokenRequest))
-	})
-	return _c
-}
-
-func (_c *MockProvider_Exchange_Call) Return(_a0 *handler.TokenResponse, _a1 error) *MockProvider_Exchange_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockProvider_Exchange_Call) RunAndReturn(run func(handler.TokenRequest) (*handler.TokenResponse, error)) *MockProvider_Exchange_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// GetCertificates provides a mock function with given fields:
-func (_m *MockProvider) GetCertificates() *handler.CertificatesResponse {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetCertificates")
-	}
-
-	var r0 *handler.CertificatesResponse
-	if rf, ok := ret.Get(0).(func() *handler.CertificatesResponse); ok {
-		r0 = rf()
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.CertificatesResponse)
-		}
-	}
-
-	return r0
-}
-
-// MockProvider_GetCertificates_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetCertificates'
-type MockProvider_GetCertificates_Call struct {
-	*mock.Call
-}
-
-// GetCertificates is a helper method to define mock.On call
-func (_e *MockProvider_Expecter) GetCertificates() *MockProvider_GetCertificates_Call {
-	return &MockProvider_GetCertificates_Call{Call: _e.mock.On("GetCertificates")}
-}
-
-func (_c *MockProvider_GetCertificates_Call) Run(run func()) *MockProvider_GetCertificates_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockProvider_GetCertificates_Call) Return(_a0 *handler.CertificatesResponse) *MockProvider_GetCertificates_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockProvider_GetCertificates_Call) RunAndReturn(run func() *handler.CertificatesResponse) *MockProvider_GetCertificates_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Refresh provides a mock function with given fields: refreshToken
-func (_m *MockProvider) Refresh(refreshToken string) (*handler.TokenResponse, error) {
-	ret := _m.Called(refreshToken)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Refresh")
-	}
-
-	var r0 *handler.TokenResponse
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string) (*handler.TokenResponse, error)); ok {
-		return rf(refreshToken)
-	}
-	if rf, ok := ret.Get(0).(func(string) *handler.TokenResponse); ok {
-		r0 = rf(refreshToken)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.TokenResponse)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(string) error); ok {
-		r1 = rf(refreshToken)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockProvider_Refresh_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Refresh'
-type MockProvider_Refresh_Call struct {
-	*mock.Call
-}
-
-// Refresh is a helper method to define mock.On call
-//   - refreshToken string
-func (_e *MockProvider_Expecter) Refresh(refreshToken interface{}) *MockProvider_Refresh_Call {
-	return &MockProvider_Refresh_Call{Call: _e.mock.On("Refresh", refreshToken)}
-}
-
-func (_c *MockProvider_Refresh_Call) Run(run func(refreshToken string)) *MockProvider_Refresh_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string))
-	})
-	return _c
-}
-
-func (_c *MockProvider_Refresh_Call) Return(_a0 *handler.TokenResponse, _a1 error) *MockProvider_Refresh_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockProvider_Refresh_Call) RunAndReturn(run func(string) (*handler.TokenResponse, error)) *MockProvider_Refresh_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockProvider creates a new instance of MockProvider. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockProvider(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockProvider {
-	mock := &MockProvider{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/integration_test/oidcserver_mock/mock_Server.go
+++ b/mocks/github.com/int128/kubelogin/integration_test/oidcserver_mock/mock_Server.go
@@ -1,162 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package oidcserver_mock
-
-import (
-	handler "github.com/int128/kubelogin/integration_test/oidcserver/handler"
-	mock "github.com/stretchr/testify/mock"
-
-	oidcserver "github.com/int128/kubelogin/integration_test/oidcserver"
-)
-
-// MockServer is an autogenerated mock type for the Server type
-type MockServer struct {
-	mock.Mock
-}
-
-type MockServer_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockServer) EXPECT() *MockServer_Expecter {
-	return &MockServer_Expecter{mock: &_m.Mock}
-}
-
-// IssuerURL provides a mock function with given fields:
-func (_m *MockServer) IssuerURL() string {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for IssuerURL")
-	}
-
-	var r0 string
-	if rf, ok := ret.Get(0).(func() string); ok {
-		r0 = rf()
-	} else {
-		r0 = ret.Get(0).(string)
-	}
-
-	return r0
-}
-
-// MockServer_IssuerURL_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'IssuerURL'
-type MockServer_IssuerURL_Call struct {
-	*mock.Call
-}
-
-// IssuerURL is a helper method to define mock.On call
-func (_e *MockServer_Expecter) IssuerURL() *MockServer_IssuerURL_Call {
-	return &MockServer_IssuerURL_Call{Call: _e.mock.On("IssuerURL")}
-}
-
-func (_c *MockServer_IssuerURL_Call) Run(run func()) *MockServer_IssuerURL_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockServer_IssuerURL_Call) Return(_a0 string) *MockServer_IssuerURL_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockServer_IssuerURL_Call) RunAndReturn(run func() string) *MockServer_IssuerURL_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// LastTokenResponse provides a mock function with given fields:
-func (_m *MockServer) LastTokenResponse() *handler.TokenResponse {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for LastTokenResponse")
-	}
-
-	var r0 *handler.TokenResponse
-	if rf, ok := ret.Get(0).(func() *handler.TokenResponse); ok {
-		r0 = rf()
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*handler.TokenResponse)
-		}
-	}
-
-	return r0
-}
-
-// MockServer_LastTokenResponse_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'LastTokenResponse'
-type MockServer_LastTokenResponse_Call struct {
-	*mock.Call
-}
-
-// LastTokenResponse is a helper method to define mock.On call
-func (_e *MockServer_Expecter) LastTokenResponse() *MockServer_LastTokenResponse_Call {
-	return &MockServer_LastTokenResponse_Call{Call: _e.mock.On("LastTokenResponse")}
-}
-
-func (_c *MockServer_LastTokenResponse_Call) Run(run func()) *MockServer_LastTokenResponse_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockServer_LastTokenResponse_Call) Return(_a0 *handler.TokenResponse) *MockServer_LastTokenResponse_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockServer_LastTokenResponse_Call) RunAndReturn(run func() *handler.TokenResponse) *MockServer_LastTokenResponse_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// SetConfig provides a mock function with given fields: _a0
-func (_m *MockServer) SetConfig(_a0 oidcserver.Config) {
-	_m.Called(_a0)
-}
-
-// MockServer_SetConfig_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SetConfig'
-type MockServer_SetConfig_Call struct {
-	*mock.Call
-}
-
-// SetConfig is a helper method to define mock.On call
-//   - _a0 oidcserver.Config
-func (_e *MockServer_Expecter) SetConfig(_a0 interface{}) *MockServer_SetConfig_Call {
-	return &MockServer_SetConfig_Call{Call: _e.mock.On("SetConfig", _a0)}
-}
-
-func (_c *MockServer_SetConfig_Call) Run(run func(_a0 oidcserver.Config)) *MockServer_SetConfig_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(oidcserver.Config))
-	})
-	return _c
-}
-
-func (_c *MockServer_SetConfig_Call) Return() *MockServer_SetConfig_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockServer_SetConfig_Call) RunAndReturn(run func(oidcserver.Config)) *MockServer_SetConfig_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockServer creates a new instance of MockServer. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockServer(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockServer {
-	mock := &MockServer{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/cmd_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/cmd_mock/mock_Interface.go
@@ -1,84 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package cmd_mock
-
-import (
-	context "context"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Run provides a mock function with given fields: ctx, args, version
-func (_m *MockInterface) Run(ctx context.Context, args []string, version string) int {
-	ret := _m.Called(ctx, args, version)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Run")
-	}
-
-	var r0 int
-	if rf, ok := ret.Get(0).(func(context.Context, []string, string) int); ok {
-		r0 = rf(ctx, args, version)
-	} else {
-		r0 = ret.Get(0).(int)
-	}
-
-	return r0
-}
-
-// MockInterface_Run_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Run'
-type MockInterface_Run_Call struct {
-	*mock.Call
-}
-
-// Run is a helper method to define mock.On call
-//   - ctx context.Context
-//   - args []string
-//   - version string
-func (_e *MockInterface_Expecter) Run(ctx interface{}, args interface{}, version interface{}) *MockInterface_Run_Call {
-	return &MockInterface_Run_Call{Call: _e.mock.On("Run", ctx, args, version)}
-}
-
-func (_c *MockInterface_Run_Call) Run(run func(ctx context.Context, args []string, version string)) *MockInterface_Run_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].([]string), args[2].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Run_Call) Return(_a0 int) *MockInterface_Run_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Run_Call) RunAndReturn(run func(context.Context, []string, string) int) *MockInterface_Run_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/credentialplugin/writer_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/credentialplugin/writer_mock/mock_Interface.go
@@ -1,81 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package writer_mock
-
-import (
-	credentialplugin "github.com/int128/kubelogin/pkg/credentialplugin"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Write provides a mock function with given fields: out
-func (_m *MockInterface) Write(out credentialplugin.Output) error {
-	ret := _m.Called(out)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Write")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(credentialplugin.Output) error); ok {
-		r0 = rf(out)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_Write_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Write'
-type MockInterface_Write_Call struct {
-	*mock.Call
-}
-
-// Write is a helper method to define mock.On call
-//   - out credentialplugin.Output
-func (_e *MockInterface_Expecter) Write(out interface{}) *MockInterface_Write_Call {
-	return &MockInterface_Write_Call{Call: _e.mock.On("Write", out)}
-}
-
-func (_c *MockInterface_Write_Call) Run(run func(out credentialplugin.Output)) *MockInterface_Write_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(credentialplugin.Output))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Write_Call) Return(_a0 error) *MockInterface_Write_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Write_Call) RunAndReturn(run func(credentialplugin.Output) error) *MockInterface_Write_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/browser_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/browser_mock/mock_Interface.go
@@ -1,130 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package browser_mock
-
-import (
-	context "context"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Open provides a mock function with given fields: url
-func (_m *MockInterface) Open(url string) error {
-	ret := _m.Called(url)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Open")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(string) error); ok {
-		r0 = rf(url)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_Open_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Open'
-type MockInterface_Open_Call struct {
-	*mock.Call
-}
-
-// Open is a helper method to define mock.On call
-//   - url string
-func (_e *MockInterface_Expecter) Open(url interface{}) *MockInterface_Open_Call {
-	return &MockInterface_Open_Call{Call: _e.mock.On("Open", url)}
-}
-
-func (_c *MockInterface_Open_Call) Run(run func(url string)) *MockInterface_Open_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Open_Call) Return(_a0 error) *MockInterface_Open_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Open_Call) RunAndReturn(run func(string) error) *MockInterface_Open_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// OpenCommand provides a mock function with given fields: ctx, url, command
-func (_m *MockInterface) OpenCommand(ctx context.Context, url string, command string) error {
-	ret := _m.Called(ctx, url, command)
-
-	if len(ret) == 0 {
-		panic("no return value specified for OpenCommand")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(context.Context, string, string) error); ok {
-		r0 = rf(ctx, url, command)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_OpenCommand_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'OpenCommand'
-type MockInterface_OpenCommand_Call struct {
-	*mock.Call
-}
-
-// OpenCommand is a helper method to define mock.On call
-//   - ctx context.Context
-//   - url string
-//   - command string
-func (_e *MockInterface_Expecter) OpenCommand(ctx interface{}, url interface{}, command interface{}) *MockInterface_OpenCommand_Call {
-	return &MockInterface_OpenCommand_Call{Call: _e.mock.On("OpenCommand", ctx, url, command)}
-}
-
-func (_c *MockInterface_OpenCommand_Call) Run(run func(ctx context.Context, url string, command string)) *MockInterface_OpenCommand_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(string), args[2].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_OpenCommand_Call) Return(_a0 error) *MockInterface_OpenCommand_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_OpenCommand_Call) RunAndReturn(run func(context.Context, string, string) error) *MockInterface_OpenCommand_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/clock_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/clock_mock/mock_Interface.go
@@ -1,81 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package clock_mock
-
-import (
-	time "time"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Now provides a mock function with given fields:
-func (_m *MockInterface) Now() time.Time {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for Now")
-	}
-
-	var r0 time.Time
-	if rf, ok := ret.Get(0).(func() time.Time); ok {
-		r0 = rf()
-	} else {
-		r0 = ret.Get(0).(time.Time)
-	}
-
-	return r0
-}
-
-// MockInterface_Now_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Now'
-type MockInterface_Now_Call struct {
-	*mock.Call
-}
-
-// Now is a helper method to define mock.On call
-func (_e *MockInterface_Expecter) Now() *MockInterface_Now_Call {
-	return &MockInterface_Now_Call{Call: _e.mock.On("Now")}
-}
-
-func (_c *MockInterface_Now_Call) Run(run func()) *MockInterface_Now_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockInterface_Now_Call) Return(_a0 time.Time) *MockInterface_Now_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Now_Call) RunAndReturn(run func() time.Time) *MockInterface_Now_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_Interface.go
@@ -1,208 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package logger_mock
-
-import (
-	logger "github.com/int128/kubelogin/pkg/infrastructure/logger"
-	mock "github.com/stretchr/testify/mock"
-
-	pflag "github.com/spf13/pflag"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// AddFlags provides a mock function with given fields: f
-func (_m *MockInterface) AddFlags(f *pflag.FlagSet) {
-	_m.Called(f)
-}
-
-// MockInterface_AddFlags_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'AddFlags'
-type MockInterface_AddFlags_Call struct {
-	*mock.Call
-}
-
-// AddFlags is a helper method to define mock.On call
-//   - f *pflag.FlagSet
-func (_e *MockInterface_Expecter) AddFlags(f interface{}) *MockInterface_AddFlags_Call {
-	return &MockInterface_AddFlags_Call{Call: _e.mock.On("AddFlags", f)}
-}
-
-func (_c *MockInterface_AddFlags_Call) Run(run func(f *pflag.FlagSet)) *MockInterface_AddFlags_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(*pflag.FlagSet))
-	})
-	return _c
-}
-
-func (_c *MockInterface_AddFlags_Call) Return() *MockInterface_AddFlags_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockInterface_AddFlags_Call) RunAndReturn(run func(*pflag.FlagSet)) *MockInterface_AddFlags_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// IsEnabled provides a mock function with given fields: level
-func (_m *MockInterface) IsEnabled(level int) bool {
-	ret := _m.Called(level)
-
-	if len(ret) == 0 {
-		panic("no return value specified for IsEnabled")
-	}
-
-	var r0 bool
-	if rf, ok := ret.Get(0).(func(int) bool); ok {
-		r0 = rf(level)
-	} else {
-		r0 = ret.Get(0).(bool)
-	}
-
-	return r0
-}
-
-// MockInterface_IsEnabled_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'IsEnabled'
-type MockInterface_IsEnabled_Call struct {
-	*mock.Call
-}
-
-// IsEnabled is a helper method to define mock.On call
-//   - level int
-func (_e *MockInterface_Expecter) IsEnabled(level interface{}) *MockInterface_IsEnabled_Call {
-	return &MockInterface_IsEnabled_Call{Call: _e.mock.On("IsEnabled", level)}
-}
-
-func (_c *MockInterface_IsEnabled_Call) Run(run func(level int)) *MockInterface_IsEnabled_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(int))
-	})
-	return _c
-}
-
-func (_c *MockInterface_IsEnabled_Call) Return(_a0 bool) *MockInterface_IsEnabled_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_IsEnabled_Call) RunAndReturn(run func(int) bool) *MockInterface_IsEnabled_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Printf provides a mock function with given fields: format, args
-func (_m *MockInterface) Printf(format string, args ...interface{}) {
-	var _ca []interface{}
-	_ca = append(_ca, format)
-	_ca = append(_ca, args...)
-	_m.Called(_ca...)
-}
-
-// MockInterface_Printf_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Printf'
-type MockInterface_Printf_Call struct {
-	*mock.Call
-}
-
-// Printf is a helper method to define mock.On call
-//   - format string
-//   - args ...interface{}
-func (_e *MockInterface_Expecter) Printf(format interface{}, args ...interface{}) *MockInterface_Printf_Call {
-	return &MockInterface_Printf_Call{Call: _e.mock.On("Printf",
-		append([]interface{}{format}, args...)...)}
-}
-
-func (_c *MockInterface_Printf_Call) Run(run func(format string, args ...interface{})) *MockInterface_Printf_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		variadicArgs := make([]interface{}, len(args)-1)
-		for i, a := range args[1:] {
-			if a != nil {
-				variadicArgs[i] = a.(interface{})
-			}
-		}
-		run(args[0].(string), variadicArgs...)
-	})
-	return _c
-}
-
-func (_c *MockInterface_Printf_Call) Return() *MockInterface_Printf_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockInterface_Printf_Call) RunAndReturn(run func(string, ...interface{})) *MockInterface_Printf_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// V provides a mock function with given fields: level
-func (_m *MockInterface) V(level int) logger.Verbose {
-	ret := _m.Called(level)
-
-	if len(ret) == 0 {
-		panic("no return value specified for V")
-	}
-
-	var r0 logger.Verbose
-	if rf, ok := ret.Get(0).(func(int) logger.Verbose); ok {
-		r0 = rf(level)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(logger.Verbose)
-		}
-	}
-
-	return r0
-}
-
-// MockInterface_V_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'V'
-type MockInterface_V_Call struct {
-	*mock.Call
-}
-
-// V is a helper method to define mock.On call
-//   - level int
-func (_e *MockInterface_Expecter) V(level interface{}) *MockInterface_V_Call {
-	return &MockInterface_V_Call{Call: _e.mock.On("V", level)}
-}
-
-func (_c *MockInterface_V_Call) Run(run func(level int)) *MockInterface_V_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(int))
-	})
-	return _c
-}
-
-func (_c *MockInterface_V_Call) Return(_a0 logger.Verbose) *MockInterface_V_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_V_Call) RunAndReturn(run func(int) logger.Verbose) *MockInterface_V_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_Verbose.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_Verbose.go
@@ -1,76 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package logger_mock
-
-import mock "github.com/stretchr/testify/mock"
-
-// MockVerbose is an autogenerated mock type for the Verbose type
-type MockVerbose struct {
-	mock.Mock
-}
-
-type MockVerbose_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockVerbose) EXPECT() *MockVerbose_Expecter {
-	return &MockVerbose_Expecter{mock: &_m.Mock}
-}
-
-// Infof provides a mock function with given fields: format, args
-func (_m *MockVerbose) Infof(format string, args ...interface{}) {
-	var _ca []interface{}
-	_ca = append(_ca, format)
-	_ca = append(_ca, args...)
-	_m.Called(_ca...)
-}
-
-// MockVerbose_Infof_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Infof'
-type MockVerbose_Infof_Call struct {
-	*mock.Call
-}
-
-// Infof is a helper method to define mock.On call
-//   - format string
-//   - args ...interface{}
-func (_e *MockVerbose_Expecter) Infof(format interface{}, args ...interface{}) *MockVerbose_Infof_Call {
-	return &MockVerbose_Infof_Call{Call: _e.mock.On("Infof",
-		append([]interface{}{format}, args...)...)}
-}
-
-func (_c *MockVerbose_Infof_Call) Run(run func(format string, args ...interface{})) *MockVerbose_Infof_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		variadicArgs := make([]interface{}, len(args)-1)
-		for i, a := range args[1:] {
-			if a != nil {
-				variadicArgs[i] = a.(interface{})
-			}
-		}
-		run(args[0].(string), variadicArgs...)
-	})
-	return _c
-}
-
-func (_c *MockVerbose_Infof_Call) Return() *MockVerbose_Infof_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockVerbose_Infof_Call) RunAndReturn(run func(string, ...interface{})) *MockVerbose_Infof_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockVerbose creates a new instance of MockVerbose. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockVerbose(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockVerbose {
-	mock := &MockVerbose{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_goLogger.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/logger_mock/mock_goLogger.go
@@ -1,76 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package logger_mock
-
-import mock "github.com/stretchr/testify/mock"
-
-// MockgoLogger is an autogenerated mock type for the goLogger type
-type MockgoLogger struct {
-	mock.Mock
-}
-
-type MockgoLogger_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockgoLogger) EXPECT() *MockgoLogger_Expecter {
-	return &MockgoLogger_Expecter{mock: &_m.Mock}
-}
-
-// Printf provides a mock function with given fields: format, v
-func (_m *MockgoLogger) Printf(format string, v ...interface{}) {
-	var _ca []interface{}
-	_ca = append(_ca, format)
-	_ca = append(_ca, v...)
-	_m.Called(_ca...)
-}
-
-// MockgoLogger_Printf_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Printf'
-type MockgoLogger_Printf_Call struct {
-	*mock.Call
-}
-
-// Printf is a helper method to define mock.On call
-//   - format string
-//   - v ...interface{}
-func (_e *MockgoLogger_Expecter) Printf(format interface{}, v ...interface{}) *MockgoLogger_Printf_Call {
-	return &MockgoLogger_Printf_Call{Call: _e.mock.On("Printf",
-		append([]interface{}{format}, v...)...)}
-}
-
-func (_c *MockgoLogger_Printf_Call) Run(run func(format string, v ...interface{})) *MockgoLogger_Printf_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		variadicArgs := make([]interface{}, len(args)-1)
-		for i, a := range args[1:] {
-			if a != nil {
-				variadicArgs[i] = a.(interface{})
-			}
-		}
-		run(args[0].(string), variadicArgs...)
-	})
-	return _c
-}
-
-func (_c *MockgoLogger_Printf_Call) Return() *MockgoLogger_Printf_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockgoLogger_Printf_Call) RunAndReturn(run func(string, ...interface{})) *MockgoLogger_Printf_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockgoLogger creates a new instance of MockgoLogger. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockgoLogger(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockgoLogger {
-	mock := &MockgoLogger{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/infrastructure/reader_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/infrastructure/reader_mock/mock_Interface.go
@@ -1,144 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package reader_mock
-
-import mock "github.com/stretchr/testify/mock"
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// ReadPassword provides a mock function with given fields: prompt
-func (_m *MockInterface) ReadPassword(prompt string) (string, error) {
-	ret := _m.Called(prompt)
-
-	if len(ret) == 0 {
-		panic("no return value specified for ReadPassword")
-	}
-
-	var r0 string
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string) (string, error)); ok {
-		return rf(prompt)
-	}
-	if rf, ok := ret.Get(0).(func(string) string); ok {
-		r0 = rf(prompt)
-	} else {
-		r0 = ret.Get(0).(string)
-	}
-
-	if rf, ok := ret.Get(1).(func(string) error); ok {
-		r1 = rf(prompt)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_ReadPassword_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'ReadPassword'
-type MockInterface_ReadPassword_Call struct {
-	*mock.Call
-}
-
-// ReadPassword is a helper method to define mock.On call
-//   - prompt string
-func (_e *MockInterface_Expecter) ReadPassword(prompt interface{}) *MockInterface_ReadPassword_Call {
-	return &MockInterface_ReadPassword_Call{Call: _e.mock.On("ReadPassword", prompt)}
-}
-
-func (_c *MockInterface_ReadPassword_Call) Run(run func(prompt string)) *MockInterface_ReadPassword_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_ReadPassword_Call) Return(_a0 string, _a1 error) *MockInterface_ReadPassword_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_ReadPassword_Call) RunAndReturn(run func(string) (string, error)) *MockInterface_ReadPassword_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// ReadString provides a mock function with given fields: prompt
-func (_m *MockInterface) ReadString(prompt string) (string, error) {
-	ret := _m.Called(prompt)
-
-	if len(ret) == 0 {
-		panic("no return value specified for ReadString")
-	}
-
-	var r0 string
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string) (string, error)); ok {
-		return rf(prompt)
-	}
-	if rf, ok := ret.Get(0).(func(string) string); ok {
-		r0 = rf(prompt)
-	} else {
-		r0 = ret.Get(0).(string)
-	}
-
-	if rf, ok := ret.Get(1).(func(string) error); ok {
-		r1 = rf(prompt)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_ReadString_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'ReadString'
-type MockInterface_ReadString_Call struct {
-	*mock.Call
-}
-
-// ReadString is a helper method to define mock.On call
-//   - prompt string
-func (_e *MockInterface_Expecter) ReadString(prompt interface{}) *MockInterface_ReadString_Call {
-	return &MockInterface_ReadString_Call{Call: _e.mock.On("ReadString", prompt)}
-}
-
-func (_c *MockInterface_ReadString_Call) Run(run func(prompt string)) *MockInterface_ReadString_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_ReadString_Call) Return(_a0 string, _a1 error) *MockInterface_ReadString_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_ReadString_Call) RunAndReturn(run func(string) (string, error)) *MockInterface_ReadString_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/jwt_mock/mock_Clock.go
+++ b/mocks/github.com/int128/kubelogin/pkg/jwt_mock/mock_Clock.go
@@ -1,81 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package jwt_mock
-
-import (
-	time "time"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockClock is an autogenerated mock type for the Clock type
-type MockClock struct {
-	mock.Mock
-}
-
-type MockClock_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockClock) EXPECT() *MockClock_Expecter {
-	return &MockClock_Expecter{mock: &_m.Mock}
-}
-
-// Now provides a mock function with given fields:
-func (_m *MockClock) Now() time.Time {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for Now")
-	}
-
-	var r0 time.Time
-	if rf, ok := ret.Get(0).(func() time.Time); ok {
-		r0 = rf()
-	} else {
-		r0 = ret.Get(0).(time.Time)
-	}
-
-	return r0
-}
-
-// MockClock_Now_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Now'
-type MockClock_Now_Call struct {
-	*mock.Call
-}
-
-// Now is a helper method to define mock.On call
-func (_e *MockClock_Expecter) Now() *MockClock_Now_Call {
-	return &MockClock_Now_Call{Call: _e.mock.On("Now")}
-}
-
-func (_c *MockClock_Now_Call) Run(run func()) *MockClock_Now_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockClock_Now_Call) Return(_a0 time.Time) *MockClock_Now_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockClock_Now_Call) RunAndReturn(run func() time.Time) *MockClock_Now_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockClock creates a new instance of MockClock. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockClock(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockClock {
-	mock := &MockClock{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/kubeconfig/loader_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/kubeconfig/loader_mock/mock_Interface.go
@@ -1,96 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package loader_mock
-
-import (
-	kubeconfig "github.com/int128/kubelogin/pkg/kubeconfig"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// GetCurrentAuthProvider provides a mock function with given fields: explicitFilename, contextName, userName
-func (_m *MockInterface) GetCurrentAuthProvider(explicitFilename string, contextName kubeconfig.ContextName, userName kubeconfig.UserName) (*kubeconfig.AuthProvider, error) {
-	ret := _m.Called(explicitFilename, contextName, userName)
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetCurrentAuthProvider")
-	}
-
-	var r0 *kubeconfig.AuthProvider
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string, kubeconfig.ContextName, kubeconfig.UserName) (*kubeconfig.AuthProvider, error)); ok {
-		return rf(explicitFilename, contextName, userName)
-	}
-	if rf, ok := ret.Get(0).(func(string, kubeconfig.ContextName, kubeconfig.UserName) *kubeconfig.AuthProvider); ok {
-		r0 = rf(explicitFilename, contextName, userName)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*kubeconfig.AuthProvider)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(string, kubeconfig.ContextName, kubeconfig.UserName) error); ok {
-		r1 = rf(explicitFilename, contextName, userName)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_GetCurrentAuthProvider_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetCurrentAuthProvider'
-type MockInterface_GetCurrentAuthProvider_Call struct {
-	*mock.Call
-}
-
-// GetCurrentAuthProvider is a helper method to define mock.On call
-//   - explicitFilename string
-//   - contextName kubeconfig.ContextName
-//   - userName kubeconfig.UserName
-func (_e *MockInterface_Expecter) GetCurrentAuthProvider(explicitFilename interface{}, contextName interface{}, userName interface{}) *MockInterface_GetCurrentAuthProvider_Call {
-	return &MockInterface_GetCurrentAuthProvider_Call{Call: _e.mock.On("GetCurrentAuthProvider", explicitFilename, contextName, userName)}
-}
-
-func (_c *MockInterface_GetCurrentAuthProvider_Call) Run(run func(explicitFilename string, contextName kubeconfig.ContextName, userName kubeconfig.UserName)) *MockInterface_GetCurrentAuthProvider_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string), args[1].(kubeconfig.ContextName), args[2].(kubeconfig.UserName))
-	})
-	return _c
-}
-
-func (_c *MockInterface_GetCurrentAuthProvider_Call) Return(_a0 *kubeconfig.AuthProvider, _a1 error) *MockInterface_GetCurrentAuthProvider_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_GetCurrentAuthProvider_Call) RunAndReturn(run func(string, kubeconfig.ContextName, kubeconfig.UserName) (*kubeconfig.AuthProvider, error)) *MockInterface_GetCurrentAuthProvider_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/kubeconfig/writer_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/kubeconfig/writer_mock/mock_Interface.go
@@ -1,81 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package writer_mock
-
-import (
-	kubeconfig "github.com/int128/kubelogin/pkg/kubeconfig"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// UpdateAuthProvider provides a mock function with given fields: p
-func (_m *MockInterface) UpdateAuthProvider(p kubeconfig.AuthProvider) error {
-	ret := _m.Called(p)
-
-	if len(ret) == 0 {
-		panic("no return value specified for UpdateAuthProvider")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(kubeconfig.AuthProvider) error); ok {
-		r0 = rf(p)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_UpdateAuthProvider_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'UpdateAuthProvider'
-type MockInterface_UpdateAuthProvider_Call struct {
-	*mock.Call
-}
-
-// UpdateAuthProvider is a helper method to define mock.On call
-//   - p kubeconfig.AuthProvider
-func (_e *MockInterface_Expecter) UpdateAuthProvider(p interface{}) *MockInterface_UpdateAuthProvider_Call {
-	return &MockInterface_UpdateAuthProvider_Call{Call: _e.mock.On("UpdateAuthProvider", p)}
-}
-
-func (_c *MockInterface_UpdateAuthProvider_Call) Run(run func(p kubeconfig.AuthProvider)) *MockInterface_UpdateAuthProvider_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(kubeconfig.AuthProvider))
-	})
-	return _c
-}
-
-func (_c *MockInterface_UpdateAuthProvider_Call) Return(_a0 error) *MockInterface_UpdateAuthProvider_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_UpdateAuthProvider_Call) RunAndReturn(run func(kubeconfig.AuthProvider) error) *MockInterface_UpdateAuthProvider_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/oidc/client_mock/mock_FactoryInterface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/oidc/client_mock/mock_FactoryInterface.go
@@ -1,103 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package client_mock
-
-import (
-	context "context"
-
-	client "github.com/int128/kubelogin/pkg/oidc/client"
-
-	mock "github.com/stretchr/testify/mock"
-
-	oidc "github.com/int128/kubelogin/pkg/oidc"
-
-	tlsclientconfig "github.com/int128/kubelogin/pkg/tlsclientconfig"
-)
-
-// MockFactoryInterface is an autogenerated mock type for the FactoryInterface type
-type MockFactoryInterface struct {
-	mock.Mock
-}
-
-type MockFactoryInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockFactoryInterface) EXPECT() *MockFactoryInterface_Expecter {
-	return &MockFactoryInterface_Expecter{mock: &_m.Mock}
-}
-
-// New provides a mock function with given fields: ctx, p, tlsClientConfig, useAccessToken
-func (_m *MockFactoryInterface) New(ctx context.Context, p oidc.Provider, tlsClientConfig tlsclientconfig.Config, useAccessToken bool) (client.Interface, error) {
-	ret := _m.Called(ctx, p, tlsClientConfig, useAccessToken)
-
-	if len(ret) == 0 {
-		panic("no return value specified for New")
-	}
-
-	var r0 client.Interface
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, oidc.Provider, tlsclientconfig.Config, bool) (client.Interface, error)); ok {
-		return rf(ctx, p, tlsClientConfig, useAccessToken)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, oidc.Provider, tlsclientconfig.Config, bool) client.Interface); ok {
-		r0 = rf(ctx, p, tlsClientConfig, useAccessToken)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(client.Interface)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, oidc.Provider, tlsclientconfig.Config, bool) error); ok {
-		r1 = rf(ctx, p, tlsClientConfig, useAccessToken)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockFactoryInterface_New_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'New'
-type MockFactoryInterface_New_Call struct {
-	*mock.Call
-}
-
-// New is a helper method to define mock.On call
-//   - ctx context.Context
-//   - p oidc.Provider
-//   - tlsClientConfig tlsclientconfig.Config
-//   - useAccessToken bool
-func (_e *MockFactoryInterface_Expecter) New(ctx interface{}, p interface{}, tlsClientConfig interface{}, useAccessToken interface{}) *MockFactoryInterface_New_Call {
-	return &MockFactoryInterface_New_Call{Call: _e.mock.On("New", ctx, p, tlsClientConfig, useAccessToken)}
-}
-
-func (_c *MockFactoryInterface_New_Call) Run(run func(ctx context.Context, p oidc.Provider, tlsClientConfig tlsclientconfig.Config, useAccessToken bool)) *MockFactoryInterface_New_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(oidc.Provider), args[2].(tlsclientconfig.Config), args[3].(bool))
-	})
-	return _c
-}
-
-func (_c *MockFactoryInterface_New_Call) Return(_a0 client.Interface, _a1 error) *MockFactoryInterface_New_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockFactoryInterface_New_Call) RunAndReturn(run func(context.Context, oidc.Provider, tlsclientconfig.Config, bool) (client.Interface, error)) *MockFactoryInterface_New_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockFactoryInterface creates a new instance of MockFactoryInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockFactoryInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockFactoryInterface {
-	mock := &MockFactoryInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/oidc/client_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/oidc/client_mock/mock_Interface.go
@@ -1,490 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package client_mock
-
-import (
-	context "context"
-
-	client "github.com/int128/kubelogin/pkg/oidc/client"
-
-	mock "github.com/stretchr/testify/mock"
-
-	oauth2dev "github.com/int128/oauth2dev"
-
-	oidc "github.com/int128/kubelogin/pkg/oidc"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// ExchangeAuthCode provides a mock function with given fields: ctx, in
-func (_m *MockInterface) ExchangeAuthCode(ctx context.Context, in client.ExchangeAuthCodeInput) (*oidc.TokenSet, error) {
-	ret := _m.Called(ctx, in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for ExchangeAuthCode")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, client.ExchangeAuthCodeInput) (*oidc.TokenSet, error)); ok {
-		return rf(ctx, in)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, client.ExchangeAuthCodeInput) *oidc.TokenSet); ok {
-		r0 = rf(ctx, in)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, client.ExchangeAuthCodeInput) error); ok {
-		r1 = rf(ctx, in)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_ExchangeAuthCode_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'ExchangeAuthCode'
-type MockInterface_ExchangeAuthCode_Call struct {
-	*mock.Call
-}
-
-// ExchangeAuthCode is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in client.ExchangeAuthCodeInput
-func (_e *MockInterface_Expecter) ExchangeAuthCode(ctx interface{}, in interface{}) *MockInterface_ExchangeAuthCode_Call {
-	return &MockInterface_ExchangeAuthCode_Call{Call: _e.mock.On("ExchangeAuthCode", ctx, in)}
-}
-
-func (_c *MockInterface_ExchangeAuthCode_Call) Run(run func(ctx context.Context, in client.ExchangeAuthCodeInput)) *MockInterface_ExchangeAuthCode_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(client.ExchangeAuthCodeInput))
-	})
-	return _c
-}
-
-func (_c *MockInterface_ExchangeAuthCode_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_ExchangeAuthCode_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_ExchangeAuthCode_Call) RunAndReturn(run func(context.Context, client.ExchangeAuthCodeInput) (*oidc.TokenSet, error)) *MockInterface_ExchangeAuthCode_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// ExchangeDeviceCode provides a mock function with given fields: ctx, authResponse
-func (_m *MockInterface) ExchangeDeviceCode(ctx context.Context, authResponse *oauth2dev.AuthorizationResponse) (*oidc.TokenSet, error) {
-	ret := _m.Called(ctx, authResponse)
-
-	if len(ret) == 0 {
-		panic("no return value specified for ExchangeDeviceCode")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, *oauth2dev.AuthorizationResponse) (*oidc.TokenSet, error)); ok {
-		return rf(ctx, authResponse)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, *oauth2dev.AuthorizationResponse) *oidc.TokenSet); ok {
-		r0 = rf(ctx, authResponse)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, *oauth2dev.AuthorizationResponse) error); ok {
-		r1 = rf(ctx, authResponse)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_ExchangeDeviceCode_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'ExchangeDeviceCode'
-type MockInterface_ExchangeDeviceCode_Call struct {
-	*mock.Call
-}
-
-// ExchangeDeviceCode is a helper method to define mock.On call
-//   - ctx context.Context
-//   - authResponse *oauth2dev.AuthorizationResponse
-func (_e *MockInterface_Expecter) ExchangeDeviceCode(ctx interface{}, authResponse interface{}) *MockInterface_ExchangeDeviceCode_Call {
-	return &MockInterface_ExchangeDeviceCode_Call{Call: _e.mock.On("ExchangeDeviceCode", ctx, authResponse)}
-}
-
-func (_c *MockInterface_ExchangeDeviceCode_Call) Run(run func(ctx context.Context, authResponse *oauth2dev.AuthorizationResponse)) *MockInterface_ExchangeDeviceCode_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(*oauth2dev.AuthorizationResponse))
-	})
-	return _c
-}
-
-func (_c *MockInterface_ExchangeDeviceCode_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_ExchangeDeviceCode_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_ExchangeDeviceCode_Call) RunAndReturn(run func(context.Context, *oauth2dev.AuthorizationResponse) (*oidc.TokenSet, error)) *MockInterface_ExchangeDeviceCode_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// GetAuthCodeURL provides a mock function with given fields: in
-func (_m *MockInterface) GetAuthCodeURL(in client.AuthCodeURLInput) string {
-	ret := _m.Called(in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetAuthCodeURL")
-	}
-
-	var r0 string
-	if rf, ok := ret.Get(0).(func(client.AuthCodeURLInput) string); ok {
-		r0 = rf(in)
-	} else {
-		r0 = ret.Get(0).(string)
-	}
-
-	return r0
-}
-
-// MockInterface_GetAuthCodeURL_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetAuthCodeURL'
-type MockInterface_GetAuthCodeURL_Call struct {
-	*mock.Call
-}
-
-// GetAuthCodeURL is a helper method to define mock.On call
-//   - in client.AuthCodeURLInput
-func (_e *MockInterface_Expecter) GetAuthCodeURL(in interface{}) *MockInterface_GetAuthCodeURL_Call {
-	return &MockInterface_GetAuthCodeURL_Call{Call: _e.mock.On("GetAuthCodeURL", in)}
-}
-
-func (_c *MockInterface_GetAuthCodeURL_Call) Run(run func(in client.AuthCodeURLInput)) *MockInterface_GetAuthCodeURL_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(client.AuthCodeURLInput))
-	})
-	return _c
-}
-
-func (_c *MockInterface_GetAuthCodeURL_Call) Return(_a0 string) *MockInterface_GetAuthCodeURL_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_GetAuthCodeURL_Call) RunAndReturn(run func(client.AuthCodeURLInput) string) *MockInterface_GetAuthCodeURL_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// GetDeviceAuthorization provides a mock function with given fields: ctx
-func (_m *MockInterface) GetDeviceAuthorization(ctx context.Context) (*oauth2dev.AuthorizationResponse, error) {
-	ret := _m.Called(ctx)
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetDeviceAuthorization")
-	}
-
-	var r0 *oauth2dev.AuthorizationResponse
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context) (*oauth2dev.AuthorizationResponse, error)); ok {
-		return rf(ctx)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context) *oauth2dev.AuthorizationResponse); ok {
-		r0 = rf(ctx)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oauth2dev.AuthorizationResponse)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context) error); ok {
-		r1 = rf(ctx)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_GetDeviceAuthorization_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetDeviceAuthorization'
-type MockInterface_GetDeviceAuthorization_Call struct {
-	*mock.Call
-}
-
-// GetDeviceAuthorization is a helper method to define mock.On call
-//   - ctx context.Context
-func (_e *MockInterface_Expecter) GetDeviceAuthorization(ctx interface{}) *MockInterface_GetDeviceAuthorization_Call {
-	return &MockInterface_GetDeviceAuthorization_Call{Call: _e.mock.On("GetDeviceAuthorization", ctx)}
-}
-
-func (_c *MockInterface_GetDeviceAuthorization_Call) Run(run func(ctx context.Context)) *MockInterface_GetDeviceAuthorization_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context))
-	})
-	return _c
-}
-
-func (_c *MockInterface_GetDeviceAuthorization_Call) Return(_a0 *oauth2dev.AuthorizationResponse, _a1 error) *MockInterface_GetDeviceAuthorization_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_GetDeviceAuthorization_Call) RunAndReturn(run func(context.Context) (*oauth2dev.AuthorizationResponse, error)) *MockInterface_GetDeviceAuthorization_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// GetTokenByAuthCode provides a mock function with given fields: ctx, in, localServerReadyChan
-func (_m *MockInterface) GetTokenByAuthCode(ctx context.Context, in client.GetTokenByAuthCodeInput, localServerReadyChan chan<- string) (*oidc.TokenSet, error) {
-	ret := _m.Called(ctx, in, localServerReadyChan)
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetTokenByAuthCode")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, client.GetTokenByAuthCodeInput, chan<- string) (*oidc.TokenSet, error)); ok {
-		return rf(ctx, in, localServerReadyChan)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, client.GetTokenByAuthCodeInput, chan<- string) *oidc.TokenSet); ok {
-		r0 = rf(ctx, in, localServerReadyChan)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, client.GetTokenByAuthCodeInput, chan<- string) error); ok {
-		r1 = rf(ctx, in, localServerReadyChan)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_GetTokenByAuthCode_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetTokenByAuthCode'
-type MockInterface_GetTokenByAuthCode_Call struct {
-	*mock.Call
-}
-
-// GetTokenByAuthCode is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in client.GetTokenByAuthCodeInput
-//   - localServerReadyChan chan<- string
-func (_e *MockInterface_Expecter) GetTokenByAuthCode(ctx interface{}, in interface{}, localServerReadyChan interface{}) *MockInterface_GetTokenByAuthCode_Call {
-	return &MockInterface_GetTokenByAuthCode_Call{Call: _e.mock.On("GetTokenByAuthCode", ctx, in, localServerReadyChan)}
-}
-
-func (_c *MockInterface_GetTokenByAuthCode_Call) Run(run func(ctx context.Context, in client.GetTokenByAuthCodeInput, localServerReadyChan chan<- string)) *MockInterface_GetTokenByAuthCode_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(client.GetTokenByAuthCodeInput), args[2].(chan<- string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_GetTokenByAuthCode_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_GetTokenByAuthCode_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_GetTokenByAuthCode_Call) RunAndReturn(run func(context.Context, client.GetTokenByAuthCodeInput, chan<- string) (*oidc.TokenSet, error)) *MockInterface_GetTokenByAuthCode_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// GetTokenByROPC provides a mock function with given fields: ctx, username, password
-func (_m *MockInterface) GetTokenByROPC(ctx context.Context, username string, password string) (*oidc.TokenSet, error) {
-	ret := _m.Called(ctx, username, password)
-
-	if len(ret) == 0 {
-		panic("no return value specified for GetTokenByROPC")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, string, string) (*oidc.TokenSet, error)); ok {
-		return rf(ctx, username, password)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, string, string) *oidc.TokenSet); ok {
-		r0 = rf(ctx, username, password)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, string, string) error); ok {
-		r1 = rf(ctx, username, password)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_GetTokenByROPC_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'GetTokenByROPC'
-type MockInterface_GetTokenByROPC_Call struct {
-	*mock.Call
-}
-
-// GetTokenByROPC is a helper method to define mock.On call
-//   - ctx context.Context
-//   - username string
-//   - password string
-func (_e *MockInterface_Expecter) GetTokenByROPC(ctx interface{}, username interface{}, password interface{}) *MockInterface_GetTokenByROPC_Call {
-	return &MockInterface_GetTokenByROPC_Call{Call: _e.mock.On("GetTokenByROPC", ctx, username, password)}
-}
-
-func (_c *MockInterface_GetTokenByROPC_Call) Run(run func(ctx context.Context, username string, password string)) *MockInterface_GetTokenByROPC_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(string), args[2].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_GetTokenByROPC_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_GetTokenByROPC_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_GetTokenByROPC_Call) RunAndReturn(run func(context.Context, string, string) (*oidc.TokenSet, error)) *MockInterface_GetTokenByROPC_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Refresh provides a mock function with given fields: ctx, refreshToken
-func (_m *MockInterface) Refresh(ctx context.Context, refreshToken string) (*oidc.TokenSet, error) {
-	ret := _m.Called(ctx, refreshToken)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Refresh")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, string) (*oidc.TokenSet, error)); ok {
-		return rf(ctx, refreshToken)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, string) *oidc.TokenSet); ok {
-		r0 = rf(ctx, refreshToken)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, string) error); ok {
-		r1 = rf(ctx, refreshToken)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_Refresh_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Refresh'
-type MockInterface_Refresh_Call struct {
-	*mock.Call
-}
-
-// Refresh is a helper method to define mock.On call
-//   - ctx context.Context
-//   - refreshToken string
-func (_e *MockInterface_Expecter) Refresh(ctx interface{}, refreshToken interface{}) *MockInterface_Refresh_Call {
-	return &MockInterface_Refresh_Call{Call: _e.mock.On("Refresh", ctx, refreshToken)}
-}
-
-func (_c *MockInterface_Refresh_Call) Run(run func(ctx context.Context, refreshToken string)) *MockInterface_Refresh_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(string))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Refresh_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_Refresh_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_Refresh_Call) RunAndReturn(run func(context.Context, string) (*oidc.TokenSet, error)) *MockInterface_Refresh_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// SupportedPKCEMethods provides a mock function with given fields:
-func (_m *MockInterface) SupportedPKCEMethods() []string {
-	ret := _m.Called()
-
-	if len(ret) == 0 {
-		panic("no return value specified for SupportedPKCEMethods")
-	}
-
-	var r0 []string
-	if rf, ok := ret.Get(0).(func() []string); ok {
-		r0 = rf()
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).([]string)
-		}
-	}
-
-	return r0
-}
-
-// MockInterface_SupportedPKCEMethods_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'SupportedPKCEMethods'
-type MockInterface_SupportedPKCEMethods_Call struct {
-	*mock.Call
-}
-
-// SupportedPKCEMethods is a helper method to define mock.On call
-func (_e *MockInterface_Expecter) SupportedPKCEMethods() *MockInterface_SupportedPKCEMethods_Call {
-	return &MockInterface_SupportedPKCEMethods_Call{Call: _e.mock.On("SupportedPKCEMethods")}
-}
-
-func (_c *MockInterface_SupportedPKCEMethods_Call) Run(run func()) *MockInterface_SupportedPKCEMethods_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockInterface_SupportedPKCEMethods_Call) Return(_a0 []string) *MockInterface_SupportedPKCEMethods_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_SupportedPKCEMethods_Call) RunAndReturn(run func() []string) *MockInterface_SupportedPKCEMethods_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/testing/logger_mock/mock_testingLogger.go
+++ b/mocks/github.com/int128/kubelogin/pkg/testing/logger_mock/mock_testingLogger.go
@@ -1,76 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package logger_mock
-
-import mock "github.com/stretchr/testify/mock"
-
-// MocktestingLogger is an autogenerated mock type for the testingLogger type
-type MocktestingLogger struct {
-	mock.Mock
-}
-
-type MocktestingLogger_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MocktestingLogger) EXPECT() *MocktestingLogger_Expecter {
-	return &MocktestingLogger_Expecter{mock: &_m.Mock}
-}
-
-// Logf provides a mock function with given fields: format, v
-func (_m *MocktestingLogger) Logf(format string, v ...interface{}) {
-	var _ca []interface{}
-	_ca = append(_ca, format)
-	_ca = append(_ca, v...)
-	_m.Called(_ca...)
-}
-
-// MocktestingLogger_Logf_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Logf'
-type MocktestingLogger_Logf_Call struct {
-	*mock.Call
-}
-
-// Logf is a helper method to define mock.On call
-//   - format string
-//   - v ...interface{}
-func (_e *MocktestingLogger_Expecter) Logf(format interface{}, v ...interface{}) *MocktestingLogger_Logf_Call {
-	return &MocktestingLogger_Logf_Call{Call: _e.mock.On("Logf",
-		append([]interface{}{format}, v...)...)}
-}
-
-func (_c *MocktestingLogger_Logf_Call) Run(run func(format string, v ...interface{})) *MocktestingLogger_Logf_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		variadicArgs := make([]interface{}, len(args)-1)
-		for i, a := range args[1:] {
-			if a != nil {
-				variadicArgs[i] = a.(interface{})
-			}
-		}
-		run(args[0].(string), variadicArgs...)
-	})
-	return _c
-}
-
-func (_c *MocktestingLogger_Logf_Call) Return() *MocktestingLogger_Logf_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MocktestingLogger_Logf_Call) RunAndReturn(run func(string, ...interface{})) *MocktestingLogger_Logf_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMocktestingLogger creates a new instance of MocktestingLogger. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMocktestingLogger(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MocktestingLogger {
-	mock := &MocktestingLogger{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/tlsclientconfig/loader_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/tlsclientconfig/loader_mock/mock_Interface.go
@@ -1,96 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package loader_mock
-
-import (
-	tls "crypto/tls"
-
-	mock "github.com/stretchr/testify/mock"
-
-	tlsclientconfig "github.com/int128/kubelogin/pkg/tlsclientconfig"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Load provides a mock function with given fields: config
-func (_m *MockInterface) Load(config tlsclientconfig.Config) (*tls.Config, error) {
-	ret := _m.Called(config)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Load")
-	}
-
-	var r0 *tls.Config
-	var r1 error
-	if rf, ok := ret.Get(0).(func(tlsclientconfig.Config) (*tls.Config, error)); ok {
-		return rf(config)
-	}
-	if rf, ok := ret.Get(0).(func(tlsclientconfig.Config) *tls.Config); ok {
-		r0 = rf(config)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*tls.Config)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(tlsclientconfig.Config) error); ok {
-		r1 = rf(config)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_Load_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Load'
-type MockInterface_Load_Call struct {
-	*mock.Call
-}
-
-// Load is a helper method to define mock.On call
-//   - config tlsclientconfig.Config
-func (_e *MockInterface_Expecter) Load(config interface{}) *MockInterface_Load_Call {
-	return &MockInterface_Load_Call{Call: _e.mock.On("Load", config)}
-}
-
-func (_c *MockInterface_Load_Call) Run(run func(config tlsclientconfig.Config)) *MockInterface_Load_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(tlsclientconfig.Config))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Load_Call) Return(_a0 *tls.Config, _a1 error) *MockInterface_Load_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_Load_Call) RunAndReturn(run func(tlsclientconfig.Config) (*tls.Config, error)) *MockInterface_Load_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/tokencache/repository_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/tokencache/repository_mock/mock_Interface.go
@@ -1,205 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package repository_mock
-
-import (
-	io "io"
-
-	oidc "github.com/int128/kubelogin/pkg/oidc"
-	mock "github.com/stretchr/testify/mock"
-
-	tokencache "github.com/int128/kubelogin/pkg/tokencache"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// FindByKey provides a mock function with given fields: dir, key
-func (_m *MockInterface) FindByKey(dir string, key tokencache.Key) (*oidc.TokenSet, error) {
-	ret := _m.Called(dir, key)
-
-	if len(ret) == 0 {
-		panic("no return value specified for FindByKey")
-	}
-
-	var r0 *oidc.TokenSet
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string, tokencache.Key) (*oidc.TokenSet, error)); ok {
-		return rf(dir, key)
-	}
-	if rf, ok := ret.Get(0).(func(string, tokencache.Key) *oidc.TokenSet); ok {
-		r0 = rf(dir, key)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*oidc.TokenSet)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(string, tokencache.Key) error); ok {
-		r1 = rf(dir, key)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_FindByKey_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'FindByKey'
-type MockInterface_FindByKey_Call struct {
-	*mock.Call
-}
-
-// FindByKey is a helper method to define mock.On call
-//   - dir string
-//   - key tokencache.Key
-func (_e *MockInterface_Expecter) FindByKey(dir interface{}, key interface{}) *MockInterface_FindByKey_Call {
-	return &MockInterface_FindByKey_Call{Call: _e.mock.On("FindByKey", dir, key)}
-}
-
-func (_c *MockInterface_FindByKey_Call) Run(run func(dir string, key tokencache.Key)) *MockInterface_FindByKey_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string), args[1].(tokencache.Key))
-	})
-	return _c
-}
-
-func (_c *MockInterface_FindByKey_Call) Return(_a0 *oidc.TokenSet, _a1 error) *MockInterface_FindByKey_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_FindByKey_Call) RunAndReturn(run func(string, tokencache.Key) (*oidc.TokenSet, error)) *MockInterface_FindByKey_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Lock provides a mock function with given fields: dir, key
-func (_m *MockInterface) Lock(dir string, key tokencache.Key) (io.Closer, error) {
-	ret := _m.Called(dir, key)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Lock")
-	}
-
-	var r0 io.Closer
-	var r1 error
-	if rf, ok := ret.Get(0).(func(string, tokencache.Key) (io.Closer, error)); ok {
-		return rf(dir, key)
-	}
-	if rf, ok := ret.Get(0).(func(string, tokencache.Key) io.Closer); ok {
-		r0 = rf(dir, key)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(io.Closer)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(string, tokencache.Key) error); ok {
-		r1 = rf(dir, key)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_Lock_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Lock'
-type MockInterface_Lock_Call struct {
-	*mock.Call
-}
-
-// Lock is a helper method to define mock.On call
-//   - dir string
-//   - key tokencache.Key
-func (_e *MockInterface_Expecter) Lock(dir interface{}, key interface{}) *MockInterface_Lock_Call {
-	return &MockInterface_Lock_Call{Call: _e.mock.On("Lock", dir, key)}
-}
-
-func (_c *MockInterface_Lock_Call) Run(run func(dir string, key tokencache.Key)) *MockInterface_Lock_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string), args[1].(tokencache.Key))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Lock_Call) Return(_a0 io.Closer, _a1 error) *MockInterface_Lock_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_Lock_Call) RunAndReturn(run func(string, tokencache.Key) (io.Closer, error)) *MockInterface_Lock_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// Save provides a mock function with given fields: dir, key, tokenSet
-func (_m *MockInterface) Save(dir string, key tokencache.Key, tokenSet oidc.TokenSet) error {
-	ret := _m.Called(dir, key, tokenSet)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Save")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(string, tokencache.Key, oidc.TokenSet) error); ok {
-		r0 = rf(dir, key, tokenSet)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_Save_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Save'
-type MockInterface_Save_Call struct {
-	*mock.Call
-}
-
-// Save is a helper method to define mock.On call
-//   - dir string
-//   - key tokencache.Key
-//   - tokenSet oidc.TokenSet
-func (_e *MockInterface_Expecter) Save(dir interface{}, key interface{}, tokenSet interface{}) *MockInterface_Save_Call {
-	return &MockInterface_Save_Call{Call: _e.mock.On("Save", dir, key, tokenSet)}
-}
-
-func (_c *MockInterface_Save_Call) Run(run func(dir string, key tokencache.Key, tokenSet oidc.TokenSet)) *MockInterface_Save_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(string), args[1].(tokencache.Key), args[2].(oidc.TokenSet))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Save_Call) Return(_a0 error) *MockInterface_Save_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Save_Call) RunAndReturn(run func(string, tokencache.Key, oidc.TokenSet) error) *MockInterface_Save_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/usecases/authentication_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/usecases/authentication_mock/mock_Interface.go
@@ -1,97 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package authentication_mock
-
-import (
-	context "context"
-
-	authentication "github.com/int128/kubelogin/pkg/usecases/authentication"
-
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Do provides a mock function with given fields: ctx, in
-func (_m *MockInterface) Do(ctx context.Context, in authentication.Input) (*authentication.Output, error) {
-	ret := _m.Called(ctx, in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Do")
-	}
-
-	var r0 *authentication.Output
-	var r1 error
-	if rf, ok := ret.Get(0).(func(context.Context, authentication.Input) (*authentication.Output, error)); ok {
-		return rf(ctx, in)
-	}
-	if rf, ok := ret.Get(0).(func(context.Context, authentication.Input) *authentication.Output); ok {
-		r0 = rf(ctx, in)
-	} else {
-		if ret.Get(0) != nil {
-			r0 = ret.Get(0).(*authentication.Output)
-		}
-	}
-
-	if rf, ok := ret.Get(1).(func(context.Context, authentication.Input) error); ok {
-		r1 = rf(ctx, in)
-	} else {
-		r1 = ret.Error(1)
-	}
-
-	return r0, r1
-}
-
-// MockInterface_Do_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Do'
-type MockInterface_Do_Call struct {
-	*mock.Call
-}
-
-// Do is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in authentication.Input
-func (_e *MockInterface_Expecter) Do(ctx interface{}, in interface{}) *MockInterface_Do_Call {
-	return &MockInterface_Do_Call{Call: _e.mock.On("Do", ctx, in)}
-}
-
-func (_c *MockInterface_Do_Call) Run(run func(ctx context.Context, in authentication.Input)) *MockInterface_Do_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(authentication.Input))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) Return(_a0 *authentication.Output, _a1 error) *MockInterface_Do_Call {
-	_c.Call.Return(_a0, _a1)
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) RunAndReturn(run func(context.Context, authentication.Input) (*authentication.Output, error)) *MockInterface_Do_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/usecases/credentialplugin_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/usecases/credentialplugin_mock/mock_Interface.go
@@ -1,84 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package credentialplugin_mock
-
-import (
-	context "context"
-
-	credentialplugin "github.com/int128/kubelogin/pkg/usecases/credentialplugin"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Do provides a mock function with given fields: ctx, in
-func (_m *MockInterface) Do(ctx context.Context, in credentialplugin.Input) error {
-	ret := _m.Called(ctx, in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Do")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(context.Context, credentialplugin.Input) error); ok {
-		r0 = rf(ctx, in)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_Do_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Do'
-type MockInterface_Do_Call struct {
-	*mock.Call
-}
-
-// Do is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in credentialplugin.Input
-func (_e *MockInterface_Expecter) Do(ctx interface{}, in interface{}) *MockInterface_Do_Call {
-	return &MockInterface_Do_Call{Call: _e.mock.On("Do", ctx, in)}
-}
-
-func (_c *MockInterface_Do_Call) Run(run func(ctx context.Context, in credentialplugin.Input)) *MockInterface_Do_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(credentialplugin.Input))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) Return(_a0 error) *MockInterface_Do_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) RunAndReturn(run func(context.Context, credentialplugin.Input) error) *MockInterface_Do_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/usecases/setup_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/usecases/setup_mock/mock_Interface.go
@@ -1,116 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package setup_mock
-
-import (
-	context "context"
-
-	setup "github.com/int128/kubelogin/pkg/usecases/setup"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// DoStage1 provides a mock function with given fields:
-func (_m *MockInterface) DoStage1() {
-	_m.Called()
-}
-
-// MockInterface_DoStage1_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'DoStage1'
-type MockInterface_DoStage1_Call struct {
-	*mock.Call
-}
-
-// DoStage1 is a helper method to define mock.On call
-func (_e *MockInterface_Expecter) DoStage1() *MockInterface_DoStage1_Call {
-	return &MockInterface_DoStage1_Call{Call: _e.mock.On("DoStage1")}
-}
-
-func (_c *MockInterface_DoStage1_Call) Run(run func()) *MockInterface_DoStage1_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run()
-	})
-	return _c
-}
-
-func (_c *MockInterface_DoStage1_Call) Return() *MockInterface_DoStage1_Call {
-	_c.Call.Return()
-	return _c
-}
-
-func (_c *MockInterface_DoStage1_Call) RunAndReturn(run func()) *MockInterface_DoStage1_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// DoStage2 provides a mock function with given fields: ctx, in
-func (_m *MockInterface) DoStage2(ctx context.Context, in setup.Stage2Input) error {
-	ret := _m.Called(ctx, in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for DoStage2")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(context.Context, setup.Stage2Input) error); ok {
-		r0 = rf(ctx, in)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_DoStage2_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'DoStage2'
-type MockInterface_DoStage2_Call struct {
-	*mock.Call
-}
-
-// DoStage2 is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in setup.Stage2Input
-func (_e *MockInterface_Expecter) DoStage2(ctx interface{}, in interface{}) *MockInterface_DoStage2_Call {
-	return &MockInterface_DoStage2_Call{Call: _e.mock.On("DoStage2", ctx, in)}
-}
-
-func (_c *MockInterface_DoStage2_Call) Run(run func(ctx context.Context, in setup.Stage2Input)) *MockInterface_DoStage2_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(setup.Stage2Input))
-	})
-	return _c
-}
-
-func (_c *MockInterface_DoStage2_Call) Return(_a0 error) *MockInterface_DoStage2_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_DoStage2_Call) RunAndReturn(run func(context.Context, setup.Stage2Input) error) *MockInterface_DoStage2_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/mocks/github.com/int128/kubelogin/pkg/usecases/standalone_mock/mock_Interface.go
+++ b/mocks/github.com/int128/kubelogin/pkg/usecases/standalone_mock/mock_Interface.go
@@ -1,84 +0,0 @@
-// Code generated by mockery v2.46.0. DO NOT EDIT.
-
-package standalone_mock
-
-import (
-	context "context"
-
-	standalone "github.com/int128/kubelogin/pkg/usecases/standalone"
-	mock "github.com/stretchr/testify/mock"
-)
-
-// MockInterface is an autogenerated mock type for the Interface type
-type MockInterface struct {
-	mock.Mock
-}
-
-type MockInterface_Expecter struct {
-	mock *mock.Mock
-}
-
-func (_m *MockInterface) EXPECT() *MockInterface_Expecter {
-	return &MockInterface_Expecter{mock: &_m.Mock}
-}
-
-// Do provides a mock function with given fields: ctx, in
-func (_m *MockInterface) Do(ctx context.Context, in standalone.Input) error {
-	ret := _m.Called(ctx, in)
-
-	if len(ret) == 0 {
-		panic("no return value specified for Do")
-	}
-
-	var r0 error
-	if rf, ok := ret.Get(0).(func(context.Context, standalone.Input) error); ok {
-		r0 = rf(ctx, in)
-	} else {
-		r0 = ret.Error(0)
-	}
-
-	return r0
-}
-
-// MockInterface_Do_Call is a *mock.Call that shadows Run/Return methods with type explicit version for method 'Do'
-type MockInterface_Do_Call struct {
-	*mock.Call
-}
-
-// Do is a helper method to define mock.On call
-//   - ctx context.Context
-//   - in standalone.Input
-func (_e *MockInterface_Expecter) Do(ctx interface{}, in interface{}) *MockInterface_Do_Call {
-	return &MockInterface_Do_Call{Call: _e.mock.On("Do", ctx, in)}
-}
-
-func (_c *MockInterface_Do_Call) Run(run func(ctx context.Context, in standalone.Input)) *MockInterface_Do_Call {
-	_c.Call.Run(func(args mock.Arguments) {
-		run(args[0].(context.Context), args[1].(standalone.Input))
-	})
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) Return(_a0 error) *MockInterface_Do_Call {
-	_c.Call.Return(_a0)
-	return _c
-}
-
-func (_c *MockInterface_Do_Call) RunAndReturn(run func(context.Context, standalone.Input) error) *MockInterface_Do_Call {
-	_c.Call.Return(run)
-	return _c
-}
-
-// NewMockInterface creates a new instance of MockInterface. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
-// The first argument is typically a *testing.T value.
-func NewMockInterface(t interface {
-	mock.TestingT
-	Cleanup(func())
-}) *MockInterface {
-	mock := &MockInterface{}
-	mock.Mock.Test(t)
-
-	t.Cleanup(func() { mock.AssertExpectations(t) })
-
-	return mock
-}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Hidetake Iwata	fc31d467e4	Dump all claims of ID token to debug log (#68 ) * Dump all claims of ID token to debug log * Add dump when a user already has a token	2019-04-19 10:47:32 +09:00
Hidetake Iwata	6ae8e36683	Fix error of go get and remove golint (#69 ) * Remove golint * Fix error of go get github.com/int128/ghcp	2019-04-19 10:46:07 +09:00