[skip-ci] Update artifacts

Fix version env var in Makefile

.dockerignore

@@ -0,0 +1 @@
+vendor

.github/workflows/pull_request.yaml

@@ -0,0 +1,133 @@
+name: Pull Request
+
+on:
+  pull_request_target:
+    branches:
+      - master
+
+env:
+  DOCKER_FILE_PATH: Dockerfile
+  GOLANG_VERSION: 1.15.2
+  KUBERNETES_VERSION: "1.18.0"
+  KIND_VERSION: "0.7.0"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest 
+    name: Build
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip-ci]')"    
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v2
+
+    # Setting up helm binary
+    - name: Set up Helm
+      uses: azure/setup-helm@v1
+
+    - name: Set up Go
+      id: go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ env.GOLANG_VERSION }}
+
+    - name: Install Dependencies
+      run: |
+        make install
+
+    - name: Lint
+      run: |
+        curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.26.0
+        golangci-lint run --timeout=10m ./...
+
+    - name: Helm Lint
+      run: |
+        cd deployments/kubernetes/chart/reloader
+        helm lint
+
+    - name: Install kubectl
+      run: |
+        curl -LO "https://storage.googleapis.com/kubernetes-release/release/v${KUBERNETES_VERSION}/bin/linux/amd64/kubectl"
+        sudo install ./kubectl /usr/local/bin/ && rm kubectl
+        kubectl version --short --client
+        kubectl version --short --client | grep -q ${KUBERNETES_VERSION}
+
+    - name: Install Kind
+      run: |
+        curl -L -o kind https://github.com/kubernetes-sigs/kind/releases/download/v${KIND_VERSION}/kind-linux-amd64
+        sudo install ./kind /usr/local/bin && rm kind
+        kind version
+        kind version | grep -q ${KIND_VERSION}
+
+    - name: Create Kind Cluster
+      run: |
+        kind create cluster
+        kubectl cluster-info
+        
+    - name: Test
+      run: make test
+
+    - name: Generate Tag
+      id: generate_tag
+      run: |
+        sha=${{ github.event.pull_request.head.sha }}
+        tag="SNAPSHOT-PR-${{ github.event.pull_request.number }}-${sha:0:8}"
+        echo "##[set-output name=GIT_TAG;]$(echo ${tag})"
+    
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Login to Registry
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.STAKATER_DOCKERHUB_USERNAME }}
+        password: ${{ secrets.STAKATER_DOCKERHUB_PASSWORD }}
+
+    - name: Generate image repository path
+      run: |
+        echo IMAGE_REPOSITORY=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
+
+    - name: Build and Push Docker Image
+      uses: docker/build-push-action@v2
+      with:
+        context: .
+        file: ${{ env.DOCKER_FILE_PATH  }}
+        pull: true
+        push: true
+        build-args: BUILD_PARAMETERS=${{ env.BUILD_PARAMETERS }}
+        cache-to: type=inline
+        tags: |
+          ${{ env.IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.GIT_TAG }}
+        labels: |
+          org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+          org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+          org.opencontainers.image.revision=${{ github.sha }}
+
+    - name: Comment on PR
+      uses: mshick/add-pr-comment@v1
+      env:
+       GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+      with:
+        message: '@${{ github.actor }} Image is available for testing. `docker pull ${{ github.repository }}:${{ steps.generate_tag.outputs.GIT_TAG }}`'
+        allow-repeats: false
+
+    - name: Notify Failure
+      if: failure()
+      uses: mshick/add-pr-comment@v1
+      env:
+       GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+      with:
+        message: '@${{ github.actor }} Yikes! You better fix it before anyone else finds out! [Build](https://github.com/${{ github.repository }}/commit/${{ github.event.pull_request.head.sha }}/checks) has Failed!'
+        allow-repeats: false
+
+    - name: Notify Slack
+      uses: 8398a7/action-slack@v3
+      if: always() # Pick up events even if the job fails or is canceled.
+      with:
+        status: ${{ job.status }}
+        fields: repo,author,action,eventName,ref,workflow
+      env:
+        GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+        SLACK_WEBHOOK_URL: ${{ secrets.STAKATER_DELIVERY_SLACK_WEBHOOK }}

.github/workflows/push.yaml

@@ -0,0 +1,174 @@
+name: Push
+
+on:
+  push:
+    branches:
+      - master
+
+env:
+  DOCKER_FILE_PATH: Dockerfile
+  GOLANG_VERSION: 1.15.2
+  KUBERNETES_VERSION: "1.18.0"
+  KIND_VERSION: "0.7.0"
+  HELM_REGISTRY_URL: "https://stakater.github.io/stakater-charts"
+
+jobs:
+  build:
+    name: Build
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip-ci]')"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal token
+          fetch-depth: 0 # otherwise, you will fail to push refs to dest repo
+
+      # Setting up helm binary
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+
+      - name: Set up Go
+        id: go
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GOLANG_VERSION }}
+
+      - name: Install Dependencies
+        run: |
+          make install
+
+      - name: Lint
+        run: |
+          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.26.0
+          golangci-lint run --timeout=10m ./...
+
+      - name: Install kubectl
+        run: |
+          curl -LO "https://storage.googleapis.com/kubernetes-release/release/v${KUBERNETES_VERSION}/bin/linux/amd64/kubectl"
+          sudo install ./kubectl /usr/local/bin/ && rm kubectl
+          kubectl version --short --client
+          kubectl version --short --client | grep -q ${KUBERNETES_VERSION}
+
+      - name: Install Kind
+        run: |
+          curl -L -o kind https://github.com/kubernetes-sigs/kind/releases/download/v${KIND_VERSION}/kind-linux-amd64
+          sudo install ./kind /usr/local/bin && rm kind
+          kind version
+          kind version | grep -q ${KIND_VERSION}
+
+      - name: Create Kind Cluster
+        run: |
+          kind create cluster
+          kubectl cluster-info
+
+      - name: Test
+        run: make test
+
+      - name: Generate Tag
+        id: generate_tag
+        uses: anothrNick/github-tag-action@1.26.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          WITH_V: true
+          DEFAULT_BUMP: patch
+          DRY_RUN: true
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Registry
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.STAKATER_DOCKERHUB_USERNAME }}
+          password: ${{ secrets.STAKATER_DOCKERHUB_PASSWORD }}
+
+      - name: Generate image repository path
+        run: |
+          echo IMAGE_REPOSITORY=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ${{ env.DOCKER_FILE_PATH  }}
+          pull: true
+          push: true
+          build-args: BUILD_PARAMETERS=${{ env.BUILD_PARAMETERS }}
+          cache-to: type=inline
+          tags: |
+            ${{ env.IMAGE_REPOSITORY }}:${{ steps.generate_tag.outputs.new_tag }}
+          labels: |
+            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            
+      ##############################
+      ## Add steps to generate required artifacts for a release here(helm chart, operator manifest etc.)
+      ##############################
+
+      # Generate tag for operator without "v"
+      - name: Generate Operator Tag
+        id: generate_operator_tag
+        uses: anothrNick/github-tag-action@1.26.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          WITH_V: false
+          DEFAULT_BUMP: patch
+          DRY_RUN: true
+
+      # Update chart tag to the latest semver tag
+      - name: Update Chart Version
+        env:
+          VERSION: ${{ steps.generate_operator_tag.outputs.new_tag }}
+        run: make bump-chart
+
+      # Publish helm chart
+      - name: Publish Helm chart
+        uses: stefanprodan/helm-gh-pages@master
+        with:
+          branch: master
+          repository: stakater-charts
+          target_dir: docs
+          token: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          charts_dir: deployments/kubernetes/chart/
+          charts_url: ${{ env.HELM_REGISTRY_URL }}
+          owner: stakater
+          linting: on
+          commit_username: stakater-user
+          commit_email: stakater@gmail.com
+          
+      # Commit back changes
+      - name: Commit files
+        run: |
+          git config --local user.email "stakater@gmail.com"
+          git config --local user.name "stakater-user"
+          git status 
+          git add .
+          git commit -m "[skip-ci] Update artifacts" -a
+          
+      - name: Push changes
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          branch: ${{ github.ref }}
+
+      - name: Push Latest Tag
+        uses: anothrNick/github-tag-action@1.26.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          WITH_V: true
+          DEFAULT_BUMP: patch
+
+      - name: Notify Slack
+        uses: 8398a7/action-slack@v3
+        if: always() # Pick up events even if the job fails or is canceled.
+        with:
+          status: ${{ job.status }}
+          fields: repo,author,action,eventName,ref,workflow
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          SLACK_WEBHOOK_URL: ${{ secrets.STAKATER_DELIVERY_SLACK_WEBHOOK }}

.github/workflows/release.yaml

@@ -0,0 +1,44 @@
+name: Release Go project
+
+on:
+  push:
+    tags:
+      - "v*"
+
+env:
+  GOLANG_VERSION: 1.15.2
+
+jobs:
+  build:
+    name: GoReleaser build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0 # See: https://goreleaser.com/ci/actions/
+
+      - name: Set up Go 1.x
+        uses: actions/setup-go@v2
+        with:
+          go-version: ${{ env.GOLANG_VERSION }}
+        id: go
+
+      - name: Run GoReleaser
+        uses: goreleaser/goreleaser-action@master
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+
+      - name: Notify Slack
+        uses: 8398a7/action-slack@v3
+        if: always()
+        with:
+          status: ${{ job.status }}
+          fields: repo,author,action,eventName,ref,workflow
+        env:
+          GITHUB_TOKEN: ${{ secrets.STAKATER_GITHUB_TOKEN }}
+          SLACK_WEBHOOK_URL: ${{ secrets.STAKATER_DELIVERY_SLACK_WEBHOOK }}

.gitignore

@@ -6,4 +6,6 @@ release
 out/
 _gopath/
 .DS_Store
-vendor
+.vscode
+vendor
+dist

.goreleaser.yml

@@ -0,0 +1,26 @@
+builds:
+- env:
+  - CGO_ENABLED=0
+  goos:
+  - windows
+  - darwin
+  - linux
+  goarch:
+  - 386
+  - amd64
+  - arm
+  - arm64
+archives:
+- name_template: "{{ .ProjectName }}_v{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}"
+snapshot:
+  name_template: "{{ .Tag }}-next"
+checksum:
+  name_template: "{{ .ProjectName }}_{{ .Version }}_checksums.txt"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'
+env_files:
+  github_token: /home/jenkins/.apitoken/hub

.stignore

@@ -0,0 +1,3 @@
+.git
+Reloader
+__debug_bin

.version

@@ -1 +0,0 @@
-0.0.1

Dockerfile

@@ -0,0 +1,31 @@
+# Build the manager binary
+FROM golang:1.15.2 as builder
+
+WORKDIR /workspace
+
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
+RUN go mod download
+
+# Copy the go source
+COPY main.go main.go
+COPY internal/ internal/
+COPY pkg/ pkg/
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build  -mod=mod -a -o manager main.go
+
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY --from=builder /workspace/manager .
+USER nonroot:nonroot
+
+# Port for metrics and probes
+EXPOSE 9090
+
+ENTRYPOINT ["/manager"]

Jenkinsfile

@@ -1,8 +0,0 @@
-#!/usr/bin/groovy
-@Library('github.com/stakater/fabric8-pipeline-library@v2.4.0')
-
-def dummy
-
-goBuildAndRelease {
-
-}

LICENSE

@@ -0,0 +1,201 @@
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+                        http://www.apache.org/licenses/
+
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+
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Makefile

@@ -1,52 +1,95 @@
 # note: call scripts from /scripts
 
-.PHONY: default build builder-image binary-image test stop clean-images clean push apply deploy
+.PHONY: default build builder-image binary-image test stop clean-images clean push apply deploy release release-all manifest push clean-image
 
-BUILDER ?= reloader-builder
+OS ?= linux
+ARCH ?= ???
+ALL_ARCH ?= arm64 arm amd64
+
+BUILDER ?= reloader-builder-${ARCH}
 BINARY ?= Reloader
 DOCKER_IMAGE ?= stakater/reloader
 # Default value "dev"
-DOCKER_TAG ?= 1.0.0
-REPOSITORY = ${DOCKER_IMAGE}:${DOCKER_TAG}
+TAG ?= v0.0.75.0
+REPOSITORY_GENERIC = ${DOCKER_IMAGE}:${TAG}
+REPOSITORY_ARCH = ${DOCKER_IMAGE}:${TAG}-${ARCH}
 
-VERSION=$(shell cat .version)
+VERSION ?= 0.0.1
 BUILD=
 
 GOCMD = go
-GLIDECMD = glide
 GOFLAGS ?= $(GOFLAGS:)
 LDFLAGS =
 
 default: build test
 
 install:
-	"$(GLIDECMD)" install
+	"$(GOCMD)" mod download
 
 build:
 	"$(GOCMD)" build ${GOFLAGS} ${LDFLAGS} -o "${BINARY}"
 
 builder-image:
-	@docker build --network host -t "${BUILDER}" -f build/package/Dockerfile.build .
+	docker buildx build --platform ${OS}/${ARCH} --build-arg GOARCH=$(ARCH) -t "${BUILDER}" --load -f build/package/Dockerfile.build .
+
+reloader-${ARCH}.tar:
+	docker buildx build --platform ${OS}/${ARCH} --build-arg GOARCH=$(ARCH) -t "${BUILDER}" --load -f build/package/Dockerfile.build .
+	docker run --platform ${OS}/${ARCH} --rm "${BUILDER}" > reloader-${ARCH}.tar
 
 binary-image: builder-image
-	@docker run --network host --rm "${BUILDER}" | docker build --network host -t "${REPOSITORY}" -f Dockerfile.run -
+	cat reloader-${ARCH}.tar | docker buildx build --platform ${OS}/${ARCH} -t "${REPOSITORY_ARCH}"  --load -f Dockerfile.run -
+
+push:
+	docker push ${REPOSITORY_ARCH}
+
+release:  binary-image push manifest
+
+release-all:
+	-rm -rf ~/.docker/manifests/*
+	# Make arch-specific release
+	@for arch in $(ALL_ARCH) ; do \
+		echo Make release: $$arch ; \
+		make release ARCH=$$arch ; \
+	done
+
+	set -e
+	docker manifest push --purge $(REPOSITORY_GENERIC)
+
+manifest:
+	set -e
+	docker manifest create -a $(REPOSITORY_GENERIC) $(REPOSITORY_ARCH)
+	docker manifest annotate --arch $(ARCH) $(REPOSITORY_GENERIC)  $(REPOSITORY_ARCH)
 
 test:
-	"$(GOCMD)" test -v ./...
+	"$(GOCMD)" test -timeout 1800s -v ./...
 
 stop:
 	@docker stop "${BINARY}"
 
 clean-images: stop
-	@docker rmi "${BUILDER}" "${BINARY}"
+	-docker rmi "${BINARY}"
+	@for arch in $(ALL_ARCH) ; do \
+		echo Clean image: $$arch ; \
+		make clean-image ARCH=$$arch ; \
+	done
+	-docker rmi "${REPOSITORY_GENERIC}"
+
+clean-image:
+	-docker rmi "${BUILDER}"
+	-docker rmi "${REPOSITORY_ARCH}"
+	-rm -rf ~/.docker/manifests/*
 
 clean:
 	"$(GOCMD)" clean -i
-
-push: ## push the latest Docker image to DockerHub
-	docker push $(REPOSITORY)
+	-rm -rf reloader-*.tar
 
 apply:
 	kubectl apply -f deployments/manifests/ -n temp-reloader
 
 deploy: binary-image push apply
+
+# Bump Chart
+bump-chart: 
+	sed -i "s/^version:.*/version:  $(VERSION)/" deployments/kubernetes/chart/reloader/Chart.yaml
+	sed -i "s/^appVersion:.*/appVersion:  $(VERSION)/" deployments/kubernetes/chart/reloader/Chart.yaml
+	sed -i "s/tag:.*/tag:  v$(VERSION)/" deployments/kubernetes/chart/reloader/values.yaml

README.md

@@ -1,63 +1,241 @@
-# RELOADER
+# ![](assets/web/reloader-round-100px.png) RELOADER
 
-## WHY NAME RELOADER
-
-In english language, Reloader is a thing/tool that can reload certain stuff. So refereig to that meaning relaoder can reload
+[![Go Report Card](https://goreportcard.com/badge/github.com/stakater/reloader?style=flat-square)](https://goreportcard.com/report/github.com/stakater/reloader)
+[![Go Doc](https://img.shields.io/badge/godoc-reference-blue.svg?style=flat-square)](http://godoc.org/github.com/stakater/reloader)
+[![Release](https://img.shields.io/github/release/stakater/reloader.svg?style=flat-square)](https://github.com/stakater/reloader/releases/latest)
+[![GitHub tag](https://img.shields.io/github/tag/stakater/reloader.svg?style=flat-square)](https://github.com/stakater/reloader/releases/latest)
+[![Docker Pulls](https://img.shields.io/docker/pulls/stakater/reloader.svg?style=flat-square)](https://hub.docker.com/r/stakater/reloader/)
+[![Docker Stars](https://img.shields.io/docker/stars/stakater/reloader.svg?style=flat-square)](https://hub.docker.com/r/stakater/reloader/)
+[![MicroBadger Size](https://img.shields.io/microbadger/image-size/stakater/reloader.svg?style=flat-square)](https://microbadger.com/images/stakater/reloader)
+[![MicroBadger Layers](https://img.shields.io/microbadger/layers/stakater/reloader.svg?style=flat-square)](https://microbadger.com/images/stakater/reloader)
+[![license](https://img.shields.io/github/license/stakater/reloader.svg?style=flat-square)](LICENSE)
+[![Get started with Stakater](https://stakater.github.io/README/stakater-github-banner.png)](http://stakater.com/?utm_source=Reloader&utm_medium=github)
 
 ## Problem
 
-We would like to watch if some change happens in `ConfigMap` and `Secret` objects and then perform certain upgrade on relavent `Deployment`, `Deamonset` and `Statefulset`
+We would like to watch if some change happens in `ConfigMap` and/or `Secret`; then perform a rolling upgrade on relevant `DeploymentConfig`, `Deployment`, `Daemonset` and `Statefulset`
 
 ## Solution
 
-Reloader can watch any changes in `ConfigMap` and `Secret` objects and update or recreate Pods for their associated `Deployments`, `Deamonsets` and `Statefulsets`. In this way Pods can get the latest changes in `ConfigMap` or `Secret` objects.
+Reloader can watch changes in `ConfigMap` and `Secret` and do rolling upgrades on Pods with their associated `DeploymentConfigs`, `Deployments`, `Daemonsets` and `Statefulsets`.
 
-**NOTE:** This controller has been inspired from [configmapController](https://github.com/fabric8io/configmapcontroller)
+## Compatibility
+
+Reloader is compatible with kubernetes >= 1.9
 
 ## How to use Reloader
 
-For a `Deployment` called `foo` have a `ConfigMap` called `foo`. Then add this annotation to your `Deployment`
+For a `Deployment` called `foo` have a `ConfigMap` called `foo-configmap` or `Secret` called `foo-secret` or both. Then add your annotation (by default `reloader.stakater.com/auto`) to main metadata of your `Deployment`
 
 ```yaml
+kind: Deployment
 metadata:
   annotations:
-    reloader.stakater.com/update-on-change: "foo"
+    reloader.stakater.com/auto: "true"
+spec:
+  template: metadata:
 ```
 
-Then, providing `Reloader` is running, whenever you edit the `ConfigMap` called `foo` the Reloader will update the `Deployment` by adding the environment variable:
+This will discover deployments/daemonsets/statefulset automatically where `foo-configmap` or `foo-secret` is being used either via environment variable or from volume mount. And it will perform rolling upgrade on related pods when `foo-configmap` or `foo-secret`are updated.
 
-```
-STAKATER_FOO_REVISION=${reloaderRevision}
+You can restrict this discovery to only `ConfigMap` or `Secret` objects that
+are tagged with a special annotation. To take advantage of that, annotate
+your deployment/daemonset/statefulset like this:
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    reloader.stakater.com/search: "true"
+spec:
+  template:
 ```
 
-This then triggers a rolling upgrade of your deployment's pods to use the new configuration.
+and Reloader will trigger the rolling upgrade upon modification of any
+`ConfigMap` or `Secret` annotated like this:
 
-Same procedure can be followed to perform rolling upgrade on `Deamonsets` and `Statefulsets` as well.
+```yaml
+kind: ConfigMap
+metadata:
+  annotations:
+    reloader.stakater.com/match: "true"
+data:
+  key: value
+```
+
+provided the secret/configmap is being used in an environment variable or a
+volume mount.
+
+Please note that `reloader.stakater.com/search` and
+`reloader.stakater.com/auto` do not work together. If you have the
+`reloader.stakater.com/auto: "true"` annotation on your deployment, then it
+will always restart upon a change in configmaps or secrets it uses, regardless
+of whether they have the `reloader.stakater.com/match: "true"` annotation or
+not.
+
+We can also specify a specific configmap or secret which would trigger rolling upgrade only upon change in our specified configmap or secret, this way, it will not trigger rolling upgrade upon changes in all configmaps or secrets used in a deployment, daemonset or statefulset.
+To do this either set the auto annotation to `"false"` (`reloader.stakater.com/auto: "false"`) or remove it altogether, and use annotations mentioned [here](#Configmap) or [here](#Secret)
+
+### Configmap
+
+To perform rolling upgrade when change happens only on specific configmaps use below annotation.
+
+For a `Deployment` called `foo` have a `ConfigMap` called `foo-configmap`. Then add this annotation to main metadata of your `Deployment`
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    configmap.reloader.stakater.com/reload: "foo-configmap"
+spec:
+  template: metadata:
+```
+
+Use comma separated list to define multiple configmaps.
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    configmap.reloader.stakater.com/reload: "foo-configmap,bar-configmap,baz-configmap"
+spec:
+  template: metadata:
+```
+
+### Secret
+
+To perform rolling upgrade when change happens only on specific secrets use below annotation.
+
+For a `Deployment` called `foo` have a `Secret` called `foo-secret`. Then add this annotation to main metadata of your `Deployment`
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    secret.reloader.stakater.com/reload: "foo-secret"
+spec:
+  template: metadata:
+```
+
+Use comma separated list to define multiple secrets.
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    secret.reloader.stakater.com/reload: "foo-secret,bar-secret,baz-secret"
+spec:
+  template: metadata:
+```
+
+### NOTES
+
+- Reloader also supports [sealed-secrets](https://github.com/bitnami-labs/sealed-secrets). [Here](docs/Reloader-with-Sealed-Secrets.md) are the steps to use sealed-secrets with reloader.
+- `reloader.stakater.com/auto: "true"` will only reload the pod, if the configmap or secret is used (as a volume mount or as an env) in `DeploymentConfigs/Deployment/Daemonsets/Statefulsets`
+- `secret.reloader.stakater.com/reload` or `configmap.reloader.stakater.com/reload` annotation will reload the pod upon changes in specified configmap or secret, irrespective of the usage of configmap or secret.
+- you may override the auto annotation with the `--auto-annotation` flag
+- you may override the search annotation with the `--auto-search-annotation` flag
+  and the match annotation with the `--search-match-annotation` flag
+- you may override the configmap annotation with the `--configmap-annotation` flag
+- you may override the secret annotation with the `--secret-annotation` flag
+- you may want to prevent watching certain namespaces with the `--namespaces-to-ignore` flag
+- you may want to prevent watching certain resources with the `--resources-to-ignore` flag
+- you can configure logging in JSON format with the `--log-format=json` option
 
 ## Deploying to Kubernetes
 
-You can deploy Reloader by running the following kubectl commands:
+You can deploy Reloader by following methods:
+
+### Vanilla Manifests
+
+You can apply vanilla manifests by changing `RELEASE-NAME` placeholder provided in manifest with a proper value and apply it by running the command given below:
 
 ```bash
-kubectl apply -f rbac.yaml -n <namespace>
-kubectl apply -f deployment.yaml -n <namespace>
+kubectl apply -f https://raw.githubusercontent.com/stakater/Reloader/master/deployments/kubernetes/reloader.yaml
+```
+
+By default Reloader gets deployed in `default` namespace and watches changes `secrets` and `configmaps` in all namespaces.
+
+Reloader can be configured to ignore the resources `secrets` and `configmaps` by passing the following args (`spec.template.spec.containers.args`) to its container :
+
+| Args                             | Description          |
+| -------------------------------- | -------------------- |
+| --resources-to-ignore=configMaps | To ignore configMaps |
+| --resources-to-ignore=secrets    | To ignore secrets    |
+
+`Note`: At one time only one of these resource can be ignored, trying to do it will cause error in Reloader. Workaround for ignoring both resources is by scaling down the reloader pods to `0`.
+
+### Vanilla kustomize
+
+You can also apply the vanilla manifests by running the following command
+
+```bash
+kubectl apply -k https://github.com/stakater/Reloader/deployments/kubernetes
+```
+
+Similarly to vanilla manifests get deployed in `default` namespace and watches changes `secrets` and `configmaps` in all namespaces.
+
+### Kustomize
+
+You can write your own `kustomization.yaml` using ours as a 'base' and write patches to tweak the configuration.
+
+```yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+bases:
+  - https://github.com/stakater/Reloader/deployments/kubernetes
+
+namespace: reloader
 ```
 
 ### Helm Charts
 
-Or alternatively if you configured `helm` on your cluster, you can deploy Reloader via helm chart located under `deployments/kubernetes/chart/reloader` folder.
+Alternatively if you have configured helm on your cluster, you can add reloader to helm from our public chart repository and deploy it via helm using below mentioned commands. Follow [this](docs/Helm2-to-Helm3.md) guide, in case you have trouble migrating reloader from Helm2 to Helm3
+
+```bash
+helm repo add stakater https://stakater.github.io/stakater-charts
+
+helm repo update
+
+helm install stakater/reloader # For helm3 add --generate-name flag or set the release name
+```
+
+**Note:** By default reloader watches in all namespaces. To watch in single namespace, please run following command. It will install reloader in `test` namespace which will only watch `Deployments`, `Daemonsets` and `Statefulsets` in `test` namespace.
+
+```bash
+helm install stakater/reloader --set reloader.watchGlobally=false --namespace test # For helm3 add --generate-name flag or set the release name
+```
+
+Reloader can be configured to ignore the resources `secrets` and `configmaps` by using the following parameters of `values.yaml` file:
+
+| Parameter        | Description                                                    | Type    |
+| ---------------- | -------------------------------------------------------------- | ------- |
+| ignoreSecrets    | To ignore secrets. Valid value are either `true` or `false`    | boolean |
+| ignoreConfigMaps | To ignore configMaps. Valid value are either `true` or `false` | boolean |
+
+`Note`: At one time only one of these resource can be ignored, trying to do it will cause error in helm template compilation.
+
+You can also set the log format of Reloader to json by setting `logFormat` to `json` in values.yaml and apply the chart
+
+You can enable to scrape Reloader's Prometheus metrics by setting `serviceMonitor.enabled`  to `true` in values.yaml file.
 
 ## Help
 
-**Got a question?**
+### Documentation
+
+You can find more documentation [here](docs/)
+
+### Have a question?
+
 File a GitHub [issue](https://github.com/stakater/Reloader/issues), or send us an [email](mailto:stakater@gmail.com).
 
 ### Talk to us on Slack
 
-Join and talk to us on the #tools-imc channel for discussing Reloader
+Join and talk to us on Slack for discussing Reloader
 
-[![Join Slack](https://stakater.github.io/README/stakater-join-slack-btn.png)](https://stakater-slack.herokuapp.com/)
-[![Chat](https://stakater.github.io/README/stakater-chat-btn.png)](https://stakater.slack.com/messages/CAN960CTG/)
+[![Join Slack](https://stakater.github.io/README/stakater-join-slack-btn.png)](https://slack.stakater.com/)
+[![Chat](https://stakater.github.io/README/stakater-chat-btn.png)](https://stakater-community.slack.com/messages/CC5S05S12)
 
 ## Contributing
 
@@ -67,13 +245,18 @@ Please use the [issue tracker](https://github.com/stakater/Reloader/issues) to r
 
 ### Developing
 
+1. Deploy Reloader.
+2. Run `okteto up` to activate your development container.
+3. `make build`.
+4. `./Reloader`
+
 PRs are welcome. In general, we follow the "fork-and-pull" Git workflow.
 
- 1. **Fork** the repo on GitHub
- 2. **Clone** the project to your own machine
- 3. **Commit** changes to your own branch
- 4. **Push** your work back up to your fork
- 5. Submit a **Pull request** so that we can review your changes
+1.  **Fork** the repo on GitHub
+2.  **Clone** the project to your own machine
+3.  **Commit** changes to your own branch
+4.  **Push** your work back up to your fork
+5.  Submit a **Pull request** so that we can review your changes
 
 NOTE: Be sure to merge the latest from "upstream" before making a pull request!
 
@@ -92,5 +275,9 @@ Apache2 © [Stakater](http://stakater.com)
 See [our other projects][community]
 or contact us in case of professional services and queries on <hello@stakater.com>
 
-  [website]: http://stakater.com/
-  [community]: https://github.com/stakater/
+[website]: http://stakater.com/
+[community]: https://github.com/stakater/
+
+## Acknowledgements
+
+- [ConfigmapController](https://github.com/fabric8io/configmapcontroller); We documented here why we re-created [Reloader](docs/Reloader-vs-ConfigmapController.md)

build/package/Dockerfile.build

@@ -1,18 +1,23 @@
-FROM stakater/go-glide:1.9.3
-MAINTAINER "Stakater Team"
+FROM golang:1.15.2-alpine
+LABEL maintainer "Stakater Team"
 
-RUN apk update
+ARG GOARCH=amd64
 
 RUN apk -v --update \
-    add git build-base && \
-    rm -rf /var/cache/apk/* && \
-    mkdir -p "$GOPATH/src/github.com/stakater/Reloader"
+    --no-cache \
+    add git build-base
 
-ADD . "$GOPATH/src/github.com/stakater/Reloader"
+WORKDIR "$GOPATH/src/github.com/stakater/Reloader"
 
-RUN cd "$GOPATH/src/github.com/stakater/Reloader" && \
-    glide update && \
-    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a --installsuffix cgo --ldflags="-s" -o /Reloader
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=$GOARCH
+
+RUN go build -a --installsuffix cgo --ldflags="-s" -o /Reloader
 
 COPY build/package/Dockerfile.run /
 

build/package/Dockerfile.run

@@ -1,8 +1,14 @@
-FROM alpine:3.4
-MAINTAINER "Stakater Team"
+FROM alpine:3.11
+LABEL maintainer "Stakater Team"
 
-RUN apk add --update ca-certificates
+RUN apk add --update --no-cache ca-certificates
 
 COPY Reloader /bin/Reloader
 
+# On alpine 'nobody' has uid 65534
+USER 65534
+
+# Port for metrics and probes
+EXPOSE 9090
+
 ENTRYPOINT ["/bin/Reloader"]

deployments/kubernetes/chart/reloader/.helmignore

@@ -0,0 +1,2 @@
+# OWNERS file for Kubernetes
+OWNERS

deployments/kubernetes/chart/reloader/Chart.yaml

@@ -3,11 +3,29 @@
 apiVersion: v1
 name: reloader
 description: Reloader chart that runs on kubernetes
-version: 0.0.1
+version:  0.0.78
+appVersion:  0.0.78
 keywords:
   - Reloader
   - kubernetes
 home: https://github.com/stakater/Reloader
+sources:
+  - https://github.com/stakater/IngressMonitorController
+icon: https://raw.githubusercontent.com/stakater/Reloader/master/assets/web/reloader-round-100px.png
 maintainers:
-- name: Stakater
-  email: hello@stakater.com
+  - name: Stakater
+    email: hello@stakater.com
+  - name: rasheedamir
+    email: rasheed@aurorasolutions.io
+  - name: waseem-h
+    email: waseemhassan@stakater.com
+  - name: faizanahmad055
+    email: faizan.ahmad55@outlook.com
+  - name: kahootali
+    email: ali.kahoot@aurorasolutions.io
+  - name: ahmadiq
+    email: ahmad@aurorasolutions.io
+  - name: ahsan-storm
+    email: ahsanmuhammad1@outlook.com
+  - name: ahmedwaleedmalik
+    email: waleed@stakater.com

deployments/kubernetes/chart/reloader/OWNERS

@@ -0,0 +1,16 @@
+approvers:
+- faizanahmad055
+- kahootali
+- ahmadiq
+- waseem-h
+- rasheedamir
+- ahsan-storm
+- ahmedwaleedmalik
+reviewers:
+- faizanahmad055
+- kahootali
+- ahmadiq
+- waseem-h
+- rasheedamir
+- ahsan-storm
+- ahmedwaleedmalik

deployments/kubernetes/chart/reloader/templates/NOTES.txt

@@ -0,0 +1,7 @@
+- For a `Deployment` called `foo` have a `ConfigMap` called `foo-configmap`. Then add this annotation to main metadata of your `Deployment`
+  configmap.reloader.stakater.com/reload: "foo-configmap"
+
+- For a `Deployment` called `foo` have a `Secret` called `foo-secret`. Then add this annotation to main metadata of  your `Deployment`
+  secret.reloader.stakater.com/reload: "foo-secret"
+
+- After successful installation, your pods will get rolling updates when a change in data of configmap or secret will happen.

deployments/kubernetes/chart/reloader/templates/_helpers.tpl

@@ -2,6 +2,7 @@
 {{/*
 Expand the name of the chart.
 */}}
+
 {{- define "reloader-name" -}}
 {{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" | lower -}}
 {{- end -}}
@@ -11,23 +12,37 @@ Create a default fully qualified app name.
 We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
 */}}
 {{- define "reloader-fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
 {{- $name := default .Chart.Name .Values.nameOverride -}}
 {{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
-
-{{- define "reloader-labels.selector" -}}
-app: {{ template "reloader-name" . }}
-group: {{ .Values.reloader.labels.group }}
-provider: {{ .Values.reloader.labels.provider }}
-{{- end -}}
-
-{{- define "reloader-labels.stakater" -}}
-{{ template "reloader-labels.selector" . }}
-version: {{ .Values.reloader.labels.version }}
 {{- end -}}
 
 {{- define "reloader-labels.chart" -}}
+app: {{ template "reloader-fullname" . }}
 chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
 release: {{ .Release.Name | quote }}
 heritage: {{ .Release.Service | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service | quote }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "reloader-serviceAccountName" -}}
+{{- if .Values.reloader.serviceAccount.create -}}
+    {{ default (include "reloader-fullname" .) .Values.reloader.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.reloader.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create the annotations to support helm3
+*/}}
+{{- define "reloader-helm3.annotations" -}}
+meta.helm.sh/release-namespace: {{ .Release.Namespace | quote }}
+meta.helm.sh/release-name: {{ .Release.Name | quote }}
 {{- end -}}

deployments/kubernetes/chart/reloader/templates/clusterrole.yaml

@@ -0,0 +1,68 @@
+{{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
+{{- if  (.Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1") }}
+apiVersion: rbac.authorization.k8s.io/v1
+{{ else }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{- end }}
+kind: ClusterRole
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.rbac.labels }}
+{{ toYaml .Values.reloader.rbac.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}-role
+  namespace: {{ .Release.Namespace }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+{{- if .Values.reloader.ignoreSecrets }}{{- else }}
+      - secrets
+{{- end }}
+{{- if .Values.reloader.ignoreConfigMaps }}{{- else }}
+      - configmaps
+{{- end }}
+    verbs:
+      - list
+      - get
+      - watch
+{{- if or (.Capabilities.APIVersions.Has "apps.openshift.io/v1") (.Values.isOpenshift) }}
+  - apiGroups:
+      - "apps.openshift.io"
+      - ""
+    resources:
+      - deploymentconfigs
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}
+  - apiGroups:
+      - "apps"
+    resources:
+      - deployments
+      - daemonsets
+      - statefulsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}

deployments/kubernetes/chart/reloader/templates/clusterrolebinding.yaml

@@ -0,0 +1,29 @@
+{{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
+{{- if  (.Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1") }}
+apiVersion: rbac.authorization.k8s.io/v1
+{{ else }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{- end }}
+kind: ClusterRoleBinding
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.rbac.labels }}
+{{ toYaml .Values.reloader.rbac.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}-role-binding
+  namespace: {{ .Release.Namespace }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ template "reloader-fullname" . }}-role
+subjects:
+  - kind: ServiceAccount
+    name: {{ template "reloader-serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+{{- end }}

deployments/kubernetes/chart/reloader/templates/deployment.yaml

@@ -1,29 +1,152 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+{{- if .Values.reloader.deployment.annotations }}
+{{ toYaml .Values.reloader.deployment.annotations | indent 4 }}
+{{- end }}
   labels:
-{{ include "reloader-labels.stakater" . | indent 4 }}
 {{ include "reloader-labels.chart" . | indent 4 }}
-  name: {{ template "reloader-name" . }}
+{{- if .Values.reloader.deployment.labels }}
+{{ toYaml .Values.reloader.deployment.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}
 spec:
   replicas: 1
   revisionHistoryLimit: 2
   selector:
     matchLabels:
-{{ include "reloader-labels.selector" . | indent 6 }}
+      app: {{ template "reloader-fullname" . }}
+      release: {{ .Release.Name | quote }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 6 }}
+{{- end }}
   template:
     metadata:
+{{- if .Values.reloader.deployment.pod.annotations }}
+      annotations:
+{{ toYaml .Values.reloader.deployment.pod.annotations | indent 8 }}
+{{- end }}
       labels:
-{{ include "reloader-labels.selector" . | indent 8 }}
+{{ include "reloader-labels.chart" . | indent 8 }}
+{{- if .Values.reloader.deployment.labels }}
+{{ toYaml .Values.reloader.deployment.labels | indent 8 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 8 }}
+{{- end }}
     spec:
+      {{- if .Values.reloader.deployment.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.reloader.deployment.nodeSelector | indent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.affinity }}
+      affinity:
+{{ toYaml .Values.reloader.deployment.affinity | indent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.tolerations }}
+      tolerations:
+{{ toYaml .Values.reloader.deployment.tolerations | indent 8 }}
+      {{- end }}
       containers:
-      - env:
+      - image: "{{ .Values.reloader.deployment.image.name }}:{{ .Values.reloader.deployment.image.tag }}"
+        imagePullPolicy: {{ .Values.reloader.deployment.image.pullPolicy }}
+        name: {{ template "reloader-fullname" . }}
+      {{- if or (.Values.reloader.deployment.env.open) (.Values.reloader.deployment.env.secret) (.Values.reloader.deployment.env.field) (eq .Values.reloader.watchGlobally false) }}
+        env:
+      {{- range $name, $value := .Values.reloader.deployment.env.open }}
+      {{- if not (empty $value) }}
+        - name: {{ $name | quote }}
+          value: {{ $value | quote }}
+      {{- end }}
+      {{- end }}
+      {{- $secret_name := include "reloader-fullname" . }}
+      {{- range $name, $value := .Values.reloader.deployment.env.secret }}
+      {{- if not ( empty $value) }}
+        - name: {{ $name | quote }}
+          valueFrom:
+            secretKeyRef:
+              name: {{ $secret_name }}
+              key: {{ $name | quote }}
+      {{- end }}
+      {{- end }}
+      {{- range $name, $value := .Values.reloader.deployment.env.field }}
+      {{- if not ( empty $value) }}
+        - name: {{ $name | quote }}
+          valueFrom:
+            fieldRef:
+              fieldPath: {{ $value | quote}}
+      {{- end }}
+      {{- end }}
+      {{- if eq .Values.reloader.watchGlobally false }}
         - name: KUBERNETES_NAMESPACE
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
-        image: "{{ .Values.reloader.image.name }}:{{ .Values.reloader.image.tag }}"
-        imagePullPolicy: {{ .Values.reloader.image.pullPolicy }}
-        name: {{ template "reloader-name" . }}
-      serviceAccountName: {{ template "reloader-name" . }}
-              
+      {{- end }}
+      {{- end }}
+
+        ports:
+        - name: http
+          containerPort: 9090
+        livenessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+        readinessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+
+      {{- if eq .Values.reloader.readOnlyRootFileSystem true }}
+        volumeMounts:
+          - mountPath: /tmp/
+            name: tmp-volume
+      {{- end }}
+      {{- if or (.Values.reloader.logFormat) (.Values.reloader.ignoreSecrets) (.Values.reloader.ignoreNamespaces) (.Values.reloader.ignoreConfigMaps) (.Values.reloader.custom_annotations) }}
+        args:
+          {{- if .Values.reloader.logFormat }}
+          - "--log-format={{ .Values.reloader.logFormat }}"
+          {{- end }}
+          {{- if .Values.reloader.ignoreSecrets }}
+          - "--resources-to-ignore=secrets"
+          {{- end }}
+          {{- if .Values.reloader.ignoreConfigMaps }}
+          - "--resources-to-ignore=configMaps"
+          {{- end }}
+          {{- if .Values.reloader.ignoreNamespaces }}
+          - "--namespaces-to-ignore={{ .Values.reloader.ignoreNamespaces }}"
+          {{- end }}
+
+          {{- if .Values.reloader.custom_annotations }}
+            {{- if .Values.reloader.custom_annotations.configmap }}
+            - "--configmap-annotation"
+            - "{{ .Values.reloader.custom_annotations.configmap }}"
+            {{- end }}
+            {{- if .Values.reloader.custom_annotations.secret }}
+            - "--secret-annotation"
+            - "{{ .Values.reloader.custom_annotations.secret }}"
+            {{- end }}
+            {{- if .Values.reloader.custom_annotations.auto }}
+            - "--auto-annotation"
+            - "{{ .Values.reloader.custom_annotations.auto }}"
+            {{- end }}
+          {{- end }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.resources }}
+        resources:
+{{ toYaml .Values.reloader.deployment.resources | indent 10 }}
+      {{- end }}
+{{- if .Values.reloader.deployment.securityContext }}
+      securityContext: {{ toYaml .Values.reloader.deployment.securityContext | nindent 8 }}
+{{- end }}
+      serviceAccountName: {{ template "reloader-serviceAccountName" . }}
+    {{- if eq .Values.reloader.readOnlyRootFileSystem true }}
+      volumes:
+        - emptyDir: {}
+          name: tmp-volume
+    {{- end }}

deployments/kubernetes/chart/reloader/templates/rbac.yaml

@@ -1,43 +0,0 @@
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-{{ include "reloader-labels.stakater" . | indent 4 }}
-{{ include "reloader-labels.chart" . | indent 4 }}
-  name: {{ template "reloader-name" . }}
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: Role
-metadata:
-  labels: 
-{{ include "reloader-labels.stakater" . | indent 4 }}
-{{ include "reloader-labels.chart" . | indent 4 }}
-  name: {{ template "reloader-name" . }}-role
-  namespace: {{ .Release.Namespace }}
-rules:
-  - apiGroups:
-      - ""
-    resources:      
-      - secrets
-      - configmaps
-    verbs:
-      - list
-      - get
-      - watch
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: RoleBinding
-metadata:
-  labels: 
-{{ include "reloader-labels.stakater" . | indent 4 }}
-{{ include "reloader-labels.chart" . | indent 4 }}
-  name: {{ template "reloader-name" . }}-role-binding
-  namespace: {{ .Release.Namespace }}
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: Role
-  name: {{ template "reloader-name" . }}-role
-subjects:
-  - kind: ServiceAccount
-    name: {{ template "reloader-name" . }}
-    namespace: {{ .Release.Namespace }}

deployments/kubernetes/chart/reloader/templates/role.yaml

@@ -0,0 +1,68 @@
+{{- if and (not (.Values.reloader.watchGlobally)) (.Values.reloader.rbac.enabled) }}
+{{- if  (.Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1") }}
+apiVersion: rbac.authorization.k8s.io/v1
+{{ else }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{- end }}
+kind: Role
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.rbac.labels }}
+{{ toYaml .Values.reloader.rbac.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}-role
+  namespace: {{ .Release.Namespace }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+{{- if .Values.reloader.ignoreSecrets }}{{- else }}
+      - secrets
+{{- end }}
+{{- if .Values.reloader.ignoreConfigMaps }}{{- else }}
+      - configmaps
+{{- end }}
+    verbs:
+      - list
+      - get
+      - watch
+{{- if or (.Capabilities.APIVersions.Has "apps.openshift.io/v1") (.Values.reloader.isOpenshift) }}
+  - apiGroups:
+      - "apps.openshift.io"
+      - ""
+    resources:
+      - deploymentconfigs
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}
+  - apiGroups:
+      - "apps"
+    resources:
+      - deployments
+      - daemonsets
+      - statefulsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}

deployments/kubernetes/chart/reloader/templates/rolebinding.yaml

@@ -0,0 +1,29 @@
+{{- if and (not (.Values.reloader.watchGlobally)) (.Values.reloader.rbac.enabled) }}
+{{- if  (.Capabilities.APIVersions.Has "rbac.authorization.k8s.io/v1") }}
+apiVersion: rbac.authorization.k8s.io/v1
+{{ else }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{- end }}
+kind: RoleBinding
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.rbac.labels }}
+{{ toYaml .Values.reloader.rbac.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}-role-binding
+  namespace: {{ .Release.Namespace }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ template "reloader-fullname" . }}-role
+subjects:
+  - kind: ServiceAccount
+    name: {{ template "reloader-serviceAccountName" . }}
+    namespace: {{ .Release.Namespace }}
+{{- end }}

deployments/kubernetes/chart/reloader/templates/service.yaml

@@ -0,0 +1,29 @@
+{{- if .Values.reloader.service }}
+apiVersion: v1
+kind: Service
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+{{- if .Values.reloader.service.annotations }}
+{{ toYaml .Values.reloader.service.annotations | indent 4 }}
+{{- end }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.service.labels }}
+{{ toYaml .Values.reloader.service.labels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}
+spec:
+  selector:
+{{- if .Values.reloader.deployment.labels }}
+{{ toYaml .Values.reloader.deployment.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  ports:
+  - port: {{ .Values.reloader.service.port }}
+    name: http
+    protocol: TCP
+    targetPort: http
+{{- end }}

deployments/kubernetes/chart/reloader/templates/serviceaccount.yaml

@@ -0,0 +1,19 @@
+{{- if .Values.reloader.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+{{- if .Values.global.imagePullSecrets }}
+imagePullSecrets: {{ toYaml .Values.global.imagePullSecrets | nindent 2 }}
+{{- end }}
+metadata:
+  annotations:
+{{ include "reloader-helm3.annotations" . | indent 4 }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.serviceAccount.labels }}
+{{ toYaml .Values.reloader.serviceAccount.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-serviceAccountName" . }}
+{{- end }}

deployments/kubernetes/chart/reloader/templates/servicemonitor.yaml

@@ -0,0 +1,31 @@
+{{- if and ( .Capabilities.APIVersions.Has "monitoring.coreos.com/v1" ) ( .Values.reloader.serviceMonitor.enabled ) }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.serviceMonitor.labels }}
+{{ toYaml .Values.reloader.serviceMonitor.labels | indent 4}}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}
+{{- if .Values.reloader.serviceMonitor.namespace }}
+  namespace: {{ .Values.reloader.serviceMonitor.namespace }}
+{{- end }}
+spec:
+  endpoints:
+  - targetPort: http
+    path: "/metrics"
+{{- if .Values.reloader.serviceMonitor.interval }}
+    interval: {{ .Values.reloader.serviceMonitor.interval }}
+{{- end }}
+{{- if .Values.reloader.serviceMonitor.timeout }}
+    scrapeTimeout: {{ .Values.reloader.serviceMonitor.timeout }}
+{{- end }}
+  jobLabel: {{ template "reloader-fullname" . }}
+  namespaceSelector:
+    matchNames:
+    - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{ include "reloader-labels.chart" . | nindent 6 }}
+{{- end }}

deployments/kubernetes/chart/reloader/values.yaml

@@ -1,14 +1,114 @@
 # Generated from deployments/kubernetes/templates/chart/values.yaml.tmpl
+global:
+  ## Reference to one or more secrets to be used when pulling images
+  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  ##
+  imagePullSecrets: []
 
 kubernetes:
   host: https://kubernetes.default
 
 reloader:
-  labels:
-    provider: stakater
-    group: com.stakater.platform
-    version: 0.0.1
-  image:
-    name: stakater/reloader
-    tag: "0.0.1"
-    pullPolicy: IfNotPresent
+  isOpenshift: false
+  ignoreSecrets: false
+  ignoreConfigMaps: false
+  ignoreNamespaces: "" # Comma separated list of namespaces to ignore
+  logFormat: "" #json
+  watchGlobally: true
+  # Set to true if you have a pod security policy that enforces readOnlyRootFilesystem
+  readOnlyRootFileSystem: false
+  legacy:
+    rbac: false
+  matchLabels: {}
+  deployment:
+    nodeSelector:
+    # cloud.google.com/gke-nodepool: default-pool
+
+    # An affinity stanza to be applied to the Deployment.
+    # Example:
+    #   affinity:
+    #     nodeAffinity:
+    #       requiredDuringSchedulingIgnoredDuringExecution:
+    #         nodeSelectorTerms:
+    #         - matchExpressions:
+    #           - key: "node-role.kubernetes.io/infra-worker"
+    #             operator: "Exists"
+    affinity: {}
+
+    securityContext:
+      runAsNonRoot: true
+      runAsUser: 65534
+
+    # A list of tolerations to be applied to the Deployment.
+    # Example:
+    #   tolerations:
+    #   - key: "node-role.kubernetes.io/infra-worker"
+    #     operator: "Exists"
+    #     effect: "NoSchedule"
+    tolerations: []
+
+    annotations: {}
+    labels:
+      provider: stakater
+      group: com.stakater.platform
+      version: v0.0.77
+    image:
+      name: stakater/reloader
+      tag:  v0.0.78
+      pullPolicy: IfNotPresent
+    # Support for extra environment variables.
+    env:
+      # Open supports Key value pair as environment variables.
+      open:
+      # secret supports Key value pair as environment variables. It gets the values based on keys from default reloader secret if any.
+      secret:
+      # field supports Key value pair as environment variables. It gets the values from other fields of pod.
+      field:
+
+    # Specify resource requests/limits for the deployment.
+    # Example:
+    # resources:
+    #   limits:
+    #     cpu: "100m"
+    #     memory: "512Mi"
+    #   requests:
+    #     cpu: "10m"
+    #     memory: "128Mi"
+    resources: {}
+    pod:
+      annotations: {}
+
+  service: {}
+    # labels: {}
+    # annotations: {}
+    # port: 9090
+
+  rbac:
+    enabled: true
+    labels: {}
+  # Service account config for the agent pods
+  serviceAccount:
+    # Specifies whether a ServiceAccount should be created
+    create: true
+    labels: {}
+    # The name of the ServiceAccount to use.
+    # If not set and create is true, a name is generated using the fullname template
+    name: 
+  # Optional flags to pass to the Reloader entrypoint
+  # Example:
+  #   custom_annotations:
+  #     configmap: "my.company.com/configmap"
+  #     secret: "my.company.com/secret"
+  custom_annotations: {}
+  serviceMonitor:
+    # enabling this requires service to be enabled as well, or no endpoints will be found
+    enabled: false
+    # Set the namespace the ServiceMonitor should be deployed
+    # namespace: monitoring
+    # Set how frequently Prometheus should scrape
+    # interval: 30s
+    # Set labels for the ServiceMonitor, use this to define your scrape label for Prometheus Operator
+    # labels:
+    # Set timeout for scrape
+    # timeout: 10s
+  

deployments/kubernetes/kustomization.yaml

@@ -0,0 +1,10 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - manifests/clusterrole.yaml
+  - manifests/clusterrolebinding.yaml
+  - manifests/role.yaml
+  - manifests/rolebinding.yaml
+  - manifests/serviceaccount.yaml
+  - manifests/deployment.yaml

deployments/kubernetes/manifests/clusterrole.yaml

@@ -0,0 +1,49 @@
+---
+# Source: reloader/templates/clusterrole.yaml
+
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader-role
+  namespace: default
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+      - configmaps
+    verbs:
+      - list
+      - get
+      - watch
+  - apiGroups:
+      - "apps"
+    resources:
+      - deployments
+      - daemonsets
+      - statefulsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+

deployments/kubernetes/manifests/clusterrolebinding.yaml

@@ -0,0 +1,26 @@
+---
+# Source: reloader/templates/clusterrolebinding.yaml
+
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader-role-binding
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: reloader-reloader-role
+subjects:
+  - kind: ServiceAccount
+    name: reloader-reloader
+    namespace: default
+

deployments/kubernetes/manifests/deployment.yaml

@@ -1,40 +1,61 @@
 ---
 # Source: reloader/templates/deployment.yaml
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
   labels:
-    app: reloader
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
     group: com.stakater.platform
     provider: stakater
-    version: 0.0.1
-    chart: "reloader-0.0.1"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader
+    version: v0.0.77
+    
+  name: reloader-reloader
 spec:
   replicas: 1
   revisionHistoryLimit: 2
   selector:
     matchLabels:
-      app: reloader
-      group: com.stakater.platform
-      provider: stakater
+      app: reloader-reloader
+      release: "reloader"
   template:
     metadata:
       labels:
-        app: reloader
+        app: reloader-reloader
+        chart: "reloader-v0.0.77"
+        release: "reloader"
+        heritage: "Tiller"
+        app.kubernetes.io/managed-by: "Tiller"
         group: com.stakater.platform
         provider: stakater
+        version: v0.0.77
+        
     spec:
       containers:
-      - env:
-        - name: KUBERNETES_NAMESPACE
-          valueFrom:
-            fieldRef:
-              fieldPath: metadata.namespace
-        image: "stakater/reloader:0.0.1"
+      - image: "stakater/reloader:v0.0.77"
         imagePullPolicy: IfNotPresent
-        name: reloader
-      serviceAccountName: reloader
-              
+        name: reloader-reloader
+
+        ports:
+        - name: http
+          containerPort: 9090
+        livenessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+        readinessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+      securityContext: 
+        runAsNonRoot: true
+        runAsUser: 65534
+        
+      serviceAccountName: reloader-reloader
+

deployments/kubernetes/manifests/rbac.yaml

@@ -1,60 +0,0 @@
----
-# Source: reloader/templates/rbac.yaml
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.1
-    chart: "reloader-0.0.1"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: Role
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.1
-    chart: "reloader-0.0.1"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role
-  namespace: tools
-rules:
-  - apiGroups:
-      - ""
-    resources:      
-      - secrets
-      - configmaps
-    verbs:
-      - list
-      - get
-      - watch
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: RoleBinding
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.1
-    chart: "reloader-0.0.1"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role-binding
-  namespace: tools
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: Role
-  name: reloader-role
-subjects:
-  - kind: ServiceAccount
-    name: reloader
-    namespace: tools

deployments/kubernetes/manifests/role.yaml

@@ -0,0 +1,4 @@
+---
+# Source: reloader/templates/role.yaml
+
+

deployments/kubernetes/manifests/rolebinding.yaml

@@ -0,0 +1,4 @@
+---
+# Source: reloader/templates/rolebinding.yaml
+
+

deployments/kubernetes/manifests/service.yaml

@@ -0,0 +1,4 @@
+---
+# Source: reloader/templates/service.yaml
+
+

deployments/kubernetes/manifests/serviceaccount.yaml

@@ -0,0 +1,17 @@
+---
+# Source: reloader/templates/serviceaccount.yaml
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader
+

deployments/kubernetes/manifests/servicemonitor.yaml

@@ -0,0 +1,4 @@
+---
+# Source: reloader/templates/servicemonitor.yaml
+
+

deployments/kubernetes/reloader.yaml

@@ -0,0 +1,169 @@
+---
+# Source: reloader/templates/clusterrole.yaml
+
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader-role
+  namespace: default
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+      - configmaps
+    verbs:
+      - list
+      - get
+      - watch
+  - apiGroups:
+      - "apps"
+    resources:
+      - deployments
+      - daemonsets
+      - statefulsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+
+---
+# Source: reloader/templates/clusterrolebinding.yaml
+
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader-role-binding
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: reloader-reloader-role
+subjects:
+  - kind: ServiceAccount
+    name: reloader-reloader
+    namespace: default
+
+---
+# Source: reloader/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+    group: com.stakater.platform
+    provider: stakater
+    version: v0.0.77
+    
+  name: reloader-reloader
+spec:
+  replicas: 1
+  revisionHistoryLimit: 2
+  selector:
+    matchLabels:
+      app: reloader-reloader
+      release: "reloader"
+  template:
+    metadata:
+      labels:
+        app: reloader-reloader
+        chart: "reloader-v0.0.77"
+        release: "reloader"
+        heritage: "Tiller"
+        app.kubernetes.io/managed-by: "Tiller"
+        group: com.stakater.platform
+        provider: stakater
+        version: v0.0.77
+        
+    spec:
+      containers:
+      - image: "stakater/reloader:v0.0.77"
+        imagePullPolicy: IfNotPresent
+        name: reloader-reloader
+
+        ports:
+        - name: http
+          containerPort: 9090
+        livenessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+        readinessProbe:
+          httpGet:
+            path: /metrics
+            port: http
+      securityContext: 
+        runAsNonRoot: true
+        runAsUser: 65534
+        
+      serviceAccountName: reloader-reloader
+
+---
+# Source: reloader/templates/role.yaml
+
+
+---
+# Source: reloader/templates/rolebinding.yaml
+
+
+---
+# Source: reloader/templates/service.yaml
+
+
+---
+# Source: reloader/templates/serviceaccount.yaml
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations:
+    meta.helm.sh/release-namespace: "default"
+    meta.helm.sh/release-name: "reloader"
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.77"
+    release: "reloader"
+    heritage: "Tiller"
+    app.kubernetes.io/managed-by: "Tiller"
+  name: reloader-reloader
+
+---
+# Source: reloader/templates/servicemonitor.yaml
+
+

deployments/kubernetes/templates/chart/Chart.yaml.tmpl

@@ -4,10 +4,26 @@ apiVersion: v1
 name: reloader
 description: Reloader chart that runs on kubernetes
 version: {{ getenv "VERSION" }}
+appVersion: {{ getenv "VERSION" }}
 keywords:
   - Reloader
   - kubernetes
 home: https://github.com/stakater/Reloader
+sources:
+- https://github.com/stakater/IngressMonitorController
+icon: https://raw.githubusercontent.com/stakater/Reloader/master/assets/web/reloader-round-100px.png
 maintainers:
 - name: Stakater
-  email: hello@stakater.com
+  email: hello@stakater.com
+- name: rasheedamir
+  email: rasheed@aurorasolutions.io
+- name: waseem-h
+  email: waseemhassan@stakater.com
+- name: faizanahmad055
+  email: faizan.ahmad55@outlook.com
+- name: kahootali
+  email: ali.kahoot@aurorasolutions.io
+- name: ahmadiq
+  email: ahmad@aurorasolutions.io
+- name: ahsan-storm
+  email: ahsanmuhammad1@outlook.com

deployments/kubernetes/templates/chart/values.yaml.tmpl

@@ -1,14 +1,114 @@
 # Generated from deployments/kubernetes/templates/chart/values.yaml.tmpl
+global:
+  ## Reference to one or more secrets to be used when pulling images
+  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  ##
+  imagePullSecrets: []
 
 kubernetes:
   host: https://kubernetes.default
 
 reloader:
-  labels:
-    provider: stakater
-    group: com.stakater.platform
-    version: {{ getenv "VERSION" }}
-  image:
-    name: {{ getenv "DOCKER_IMAGE" }}
-    tag: "{{ getenv "VERSION" }}"
-    pullPolicy: IfNotPresent
+  isOpenshift: false
+  ignoreSecrets: false
+  ignoreConfigMaps: false
+  ignoreNamespaces: "" # Comma separated list of namespaces to ignore
+  logFormat: "" #json
+  watchGlobally: true
+  # Set to true if you have a pod security policy that enforces readOnlyRootFilesystem
+  readOnlyRootFileSystem: false
+  legacy:
+    rbac: false
+  matchLabels: {}
+  deployment:
+    nodeSelector:
+    # cloud.google.com/gke-nodepool: default-pool
+
+    # An affinity stanza to be applied to the Deployment.
+    # Example:
+    #   affinity:
+    #     nodeAffinity:
+    #       requiredDuringSchedulingIgnoredDuringExecution:
+    #         nodeSelectorTerms:
+    #         - matchExpressions:
+    #           - key: "node-role.kubernetes.io/infra-worker"
+    #             operator: "Exists"
+    affinity: {}
+
+    securityContext:
+      runAsNonRoot: true
+      runAsUser: 65534
+
+    # A list of tolerations to be applied to the Deployment.
+    # Example:
+    #   tolerations:
+    #   - key: "node-role.kubernetes.io/infra-worker"
+    #     operator: "Exists"
+    #     effect: "NoSchedule"
+    tolerations: []
+
+    annotations: {}
+    labels:
+      provider: stakater
+      group: com.stakater.platform
+      version: {{ getenv "VERSION" }}
+    image:
+      name: {{ getenv "DOCKER_IMAGE" }}
+      tag: "{{ getenv "VERSION" }}"
+      pullPolicy: IfNotPresent
+    # Support for extra environment variables.
+    env:
+      # Open supports Key value pair as environment variables.
+      open:
+      # secret supports Key value pair as environment variables. It gets the values based on keys from default reloader secret if any.
+      secret:
+      # field supports Key value pair as environment variables. It gets the values from other fields of pod.
+      field:
+
+    # Specify resource requests/limits for the deployment.
+    # Example:
+    # resources:
+    #   limits:
+    #     cpu: "100m"
+    #     memory: "512Mi"
+    #   requests:
+    #     cpu: "10m"
+    #     memory: "128Mi"
+    resources: {}
+    pod:
+      annotations: {}
+
+  service: {}
+    # labels: {}
+    # annotations: {}
+    # port: 9090
+
+  rbac:
+    enabled: true
+    labels: {}
+  # Service account config for the agent pods
+  serviceAccount:
+    # Specifies whether a ServiceAccount should be created
+    create: true
+    labels: {}
+    # The name of the ServiceAccount to use.
+    # If not set and create is true, a name is generated using the fullname template
+    name: 
+  # Optional flags to pass to the Reloader entrypoint
+  # Example:
+  #   custom_annotations:
+  #     configmap: "my.company.com/configmap"
+  #     secret: "my.company.com/secret"
+  custom_annotations: {}
+  serviceMonitor:
+    # enabling this requires service to be enabled as well, or no endpoints will be found
+    enabled: false
+    # Set the namespace the ServiceMonitor should be deployed
+    # namespace: monitoring
+    # Set how frequently Prometheus should scrape
+    # interval: 30s
+    # Set labels for the ServiceMonitor, use this to define your scrape label for Prometheus Operator
+    # labels:
+    # Set timeout for scrape
+    # timeout: 10s
+  

docs/Container Build.md

@@ -0,0 +1,41 @@
+
+# Container Build
+> **WARNING:** As a user of Reloader there is no need to build containers, these are freely available here: https://hub.docker.com/r/stakater/reloader/
+
+Multi-architecture approach is based on original work by @mdh02038: https://github.com/mdh02038/Reloader
+
+Images tested on linux/arm, linux/arm64 and linux/amd64.
+
+# Install Pre-Reqs
+The build environment requires the following packages (tested on Ubuntu 20.04):
+* golang
+* make
+* qemu (for arm, arm64 etc. emulation)
+* binfmt-support
+* Docker engine
+
+## Docker
+Follow instructions here: https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository
+
+Once installed, enable the experimental CLI:
+```
+export DOCKER_CLI_EXPERIMENTAL=enabled
+```
+Login, to enable publishing of packages:
+```
+sudo docker login
+```
+## Remaining Pre-Reqs
+Remaining Pre-Reqs can be installed via:
+```
+sudo apt install golang make qemu-user-static binfmt-support -y
+```
+
+# Publish Multi-Architecture Image
+To build/ publish multi-arch Docker images clone repository and execute from repository root:
+```
+sudo make release-all
+```
+
+# Additional Links/ Info
+* *https://medium.com/@artur.klauser/building-multi-architecture-docker-images-with-buildx-27d80f7e2408

docs/Helm2-to-Helm3.md

@@ -0,0 +1,62 @@
+# Helm2 to Helm3 Migration
+
+Follow below mentioned instructions to migrate reloader from Helm2 to Helm3
+
+## Instrcutions:
+
+There are 3 steps involved in migrating the reloader from Helm2 to Helm3.
+
+### Step 1:
+Install the helm-2to3 plugin
+
+```bash
+helm3 plugin install https://github.com/helm/helm-2to3
+
+helm3 2to3 convert <release-name>
+
+helm3 2to3 cleanup --release-cleanup --skip-confirmation
+```
+
+### Step 2:
+Add the following Helm3 labels and annotations on reloader resources.
+
+Label:
+
+```yaml
+app.kubernetes.io/managed-by=Helm
+```
+Annotations:
+```yaml
+meta.helm.sh/release-name=<release-name>
+meta.helm.sh/release-namespace=<namespace>
+```
+
+For example, to label and annotate the ClusterRoleBinding and ClusterRole:
+
+```bash
+KIND=ClusterRoleBinding
+NAME=reloader-reloader-role-binding
+RELEASE=reloader
+NAMESPACE=kube-system
+kubectl annotate $KIND $NAME meta.helm.sh/release-name=$RELEASE
+kubectl annotate $KIND $NAME meta.helm.sh/release-namespace=$NAMESPACE
+kubectl label $KIND $NAME app.kubernetes.io/managed-by=Helm
+
+KIND=ClusterRole
+NAME=reloader-reloader-role
+RELEASE=reloader
+NAMESPACE=kube-system
+kubectl annotate $KIND $NAME meta.helm.sh/release-name=$RELEASE
+kubectl annotate $KIND $NAME meta.helm.sh/release-namespace=$NAMESPACE
+kubectl label $KIND $NAME app.kubernetes.io/managed-by=Helm
+```
+
+### Step 3:
+Upgrade to desired version
+```bash
+helm3 repo add stakater https://stakater.github.io/stakater-charts
+
+helm3 repo update
+
+helm3 upgrade <release-name> stakater/reloader --version=v0.0.72
+```

docs/How-it-works.md

@@ -0,0 +1,82 @@
+# How it works?
+
+Reloader watches for `ConfigMap` and `Secret` and detects if there are changes in data of these objects. After change detection reloader performs rolling upgrade on relevant Pods via associated `Deployment`, `Daemonset` and `Statefulset`.
+
+## How change detection works
+
+Reloader watches changes in `configmaps` and `secrets` data. As soon as it detects a change in these. It forwards these objects to an update handler which decides if and how to perform the rolling upgrade.
+
+## Requirements for rolling upgrade
+
+To perform rolling upgrade a `deployment`, `daemonset` or `statefulset` must have
+
+- support for rolling upgrade strategy
+- specific annotation for `configmaps` or `secrets`
+
+The annotation value is comma separated list of `configmaps` or `secrets`. If a change is detected in data of these `configmaps` or `secrets`, reloader will perform rolling upgrades on their associated `deployments`, `daemonsets` or `statefulsets`.
+
+### Annotation for Configmap
+
+For a `Deployment` called `foo` have a `ConfigMap` called `foo`. Then add this annotation* to your `Deployment`
+
+```yaml
+metadata:
+  annotations:
+    configmap.reloader.stakater.com/reload: "foo"
+```
+<small>*the default annotation can be changed with the `--configmap-annotation` flag</small>
+
+### Annotation for Secret
+
+For a `Deployment` called `foo` have a `Secret` called `foo`. Then add this annotation* to your `Deployment`
+
+```yaml
+metadata:
+  annotations:
+    secret.reloader.stakater.com/reload: "foo"
+```
+<small>*the default annotation can be changed with the `--secret-annotation` flag</small>
+
+Above mentioned annotation are also work for `Daemonsets` and `Statefulsets`
+
+## How Rolling upgrade works?
+
+When reloader detects changes in configmap. It gets two objects of configmap. First object is an old configmap object which has a state before the latest change. Second object is new configmap object which contains latest changes. Reloader compares both objects and see whether any change in data occurred or not. If reloader finds any change in new configmap object, only then, it move forward with rolling upgrade.
+
+After that, reloader gets the list of all deployments, daemonsets and statefulset and looks for above mentioned annotation for configmap. If the annotation value contains the configmap name, it then looks for an environment variable which can contain the configmap or secret data change hash.
+
+### Environment variable for Configmap
+
+If configmap name is foo then
+
+```yaml
+STAKATER_FOO_CONFIGMAP
+```
+
+### Environment variable for Secret
+
+If Secret name is foo then
+
+```yaml
+STAKATER_FOO_SECRET
+```
+
+If the environment variable is found then it gets its value and compares it with new configmap hash value. If old value in environment variable is different from new hash value then reloader updates the environment variable. If the environment variable does not exist then it creates a new environment variable with latest hash value from configmap and updates the relevant `deployment`, `daemonset` or `statefulset`
+
+Note: Rolling upgrade also works in the same way for secrets.
+
+### Hash value Computation
+
+Reloader uses SHA1 to compute hash value. SHA1 is used because it is efficient and less prone to collision.
+
+## Monitor All Namespaces
+
+By default reloader deploys in default namespace and monitors changes in all namespaces. To monitor changes in a specific namespace deploy the reloader in that namespace and set the `watchGlobally` flag to `false` in values file located under `deployments/kubernetes/chart/reloader`
+And render manifest file using helm command
+```bash
+helm --namespace {replace this with namespace name} template . > reloader.yaml
+```
+The output file can then be used to deploy reloader in specific namespace.
+
+## Compatibility with helm install and upgrade
+Reloader has no impact on helm deployment cycle. Reloader only injects an environment variable in  `deployment`, `daemonset` or `statefulset`. The environment variable contains the SHA1 value of configmap's or secret's data. So  if a deployment is created using Helm and Reloader updates the deployment, then next time you upgrade the helm release, reloader will do nothing except changing that environment variable value in `deployment` , `daemonset` or `statefulset`.

docs/Reloader-vs-ConfigmapController.md

@@ -0,0 +1,12 @@
+
+# Reloader vs ConfigmapController
+
+Reloader is inspired from [Configmapcontroller](https://github.com/fabric8io/configmapcontroller) but there are many ways in which it differs from configmapController. Below is the small comparison between these two controllers.
+
+| Reloader                                                                                                                                                                                                                                                                                                                 | Configmap                                                                                                                                                                                                                                                          |
+|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Reloader can watch both `secrets` and `configmaps`.                                                                                                                                                                                                                                                    | ConfigmapController can only watch changes in `configmaps`. It cannot detect changes in other resources like `secrets`.                                                                                                                                        |
+| Reloader can perform rolling upgrades on `deployments` as well as on `statefulsets` and `daemonsets`                                                                                                                                                                                                   | ConfigmapController can only perform rolling upgrades on `deployments`. It currently does not support rolling upgrades on `statefulsets` and `daemonsets`                                                                                                          |
+| Reloader provides both unit test cases and end to end integration test cases for future updates. So one can make sure that new changes do not break any old functionality.                                                                                                                                               | Currently there are not any unit test cases or end to end integration test cases in configmap controller. It add difficulties for any additional updates in configmap controller and one can not know for sure whether new changes breaks any old functionality or not. |
+| Reloader uses SHA1 to encode the change in configmap or secret. It then saves the SHA1 value in `STAKATER_FOO_CONFIGMAP` or `STAKATER_FOO_SECRET` environment variable depending upon where the change has happened. The use of SHA1 provides a concise 40 characters encoded value that is very less prone to collision. | Configmap controller uses `FABRICB_FOO_REVISION` environment variable to store any change in configmap controller. It does not encode it or convert it in suitable hash value to avoid data pollution in deployment.                                               |
+| Reloader allows you to customize your own annotation (for both Secrets and Configmaps) using command line flags | Configmap controller restricts you to only their provided annotation |

docs/Reloader-vs-k8s-trigger-controller.md

@@ -0,0 +1,40 @@
+# Reloader vs k8s-trigger-controller
+
+Reloader and k8s-trigger-controller are both built for same purpose. So there are quite a few similarities and differences between these.
+
+## Similarities
+
+- Both controllers support change detection in configmap and secrets
+- Both controllers support deployment rollout
+- Both controllers use SHA1 for hashing
+- Both controllers have end to end as well as unit test cases.
+
+## Differences
+
+### Support for Daemonsets and Statefulsets.
+
+#### k8s-trigger-controller:
+k8s-trigger-controller only support for deployment rollout. It does not support daemonsets and statefulsets rollout.
+
+#### Reloader:
+Reloader supports deployment rollout as well as daemonsets and statefulsets rollout.
+
+### Hashing usage
+
+#### k8s-trigger-controller:
+k8s-trigger-controller stores the hash value in an annotation `trigger.k8s.io/[secret|configMap]-NAME-last-hash`
+
+#### Reloader:
+Reloader stores the hash value in an environment variable `STAKATER_NAME_[SECRET|CONFIGMAP]`
+
+### Customization
+
+#### k8s-trigger-controller:
+k8s-trigger-controller restricts you to using the `trigger.k8s.io/[secret-configMap]-NAME-last-hash` annotation
+
+#### Reloader:
+Reloader allows you to customize the annotation to fit your needs with command line flags:
+
+- `--auto-annotation <annotation>`
+- `--configmap-annotation <annotation>`
+- `--secret-annotation <annotation>`

docs/Reloader-with-Sealed-Secrets.md

@@ -0,0 +1,11 @@
+Below are the steps to use reloader with Sealed Secrets.
+1. Download and install the kubeseal client from [here](https://github.com/bitnami-labs/sealed-secrets).
+2. Install the controller for sealed secrets
+3. Fetch the encryption certificate
+4. Encrypt the secret.
+5. Apply the secret.
+7. Install the tool which uses that sealed secret.
+8. Install Reloader.
+9. Once everything is setup, update the original secret at client and encrypt it with kubeseal to see reloader working.
+10. Apply the updated sealed secret.
+11. Reloader will restart the pod to use that updated secret.

docs/Verify-Reloader-Working.md

@@ -0,0 +1,61 @@
+# Verify Reloader's Working
+
+Reloader's working can be verified by three ways.
+
+## Verify from logs
+
+Check the logs of reloader and verify that you can see logs looks like below, if you are able to find these logs then it means reloader is working.
+
+```text
+Changes Detected in test-object of type 'SECRET' in namespace: test-reloader
+
+Updated test-resource of type Deployment in namespace: test-reloader
+```
+
+Below are the details that explain these logs:
+
+### test-object
+
+`test-object` is the name of a `secret` or a `deployment` in which change has been detected.
+
+### SECRET
+
+`SECRET` is the type of `test-object`. It can either be `SECRET` or `CONFIGMAP`
+
+### test-reloader
+
+`test-reloader` is the name of namespace in which reloader has detected the change.
+
+### test-resource
+
+`test-resource` is the name of resource which is going to be updated
+
+### Deployment
+
+`Deployment` is the type of `test-resource`. It can either be a `Deployment`, `Daemonset` or `Statefulset`
+
+## Verify by checking the age of Pod
+
+A pod's age can tell whether reloader is working correctly or not. If you know that a change in a `secret` or `configmap` has occurred, then check the relevant Pod's age immediately. It should be newly created few moments ago.
+
+### Verify from kubernetes Dashboard
+
+`kubernetes dashboard` can be used to verify the working of Reloader. After a change in `secret` or `configmap`, check the relevant Pod's age from dashboard. It should be newly created few moments ago.
+
+### Verify from command line
+
+After a change in `secret` or `configmap`. Run the below mentioned command and verify that the pod is newly created.
+
+```bash
+kubectl get pods <pod name> -n <namespace name>
+```
+
+## Verify from metrics
+Some metrics are exported to prometheus endpoint `/metrics` on port `9090`.
+
+When reloader is unable to reload, `reloader_reload_executed_total{success="false"}` metric gets incremented and when it reloads successfully, `reloader_reload_executed_total{success="true"}` gets incremented. You will be able to see the following metrics, with some other metrics, at `/metrics` endpoint.
+
+```
+reloader_reload_executed_total{success="false"} 15
+reloader_reload_executed_total{success="true"} 12
+```

docs/features.md

@@ -0,0 +1,7 @@
+# Features
+
+These are the key features of Reloader:
+
+1. Restart pod in a deployment on change in linked/related configmap's or secret's
+2. Restart pod in a daemonset on change in linked/related configmap's or secret's
+3. Restart pod in a statefulset on change in linked/related configmap's or secret's

glide.lock

@@ -1,245 +0,0 @@
-hash: b6fe060028bdb1249ba2413746476c2550b267eeab3c166c36a86e000a8dd354
-updated: 2018-07-17T09:08:20.493153674Z
-imports:
-- name: github.com/davecgh/go-spew
-  version: 782f4967f2dc4564575ca782fe2d04090b5faca8
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-  version: ff4f55a206334ef123e4f79bbf348980da81ca46
-  subpackages:
-  - log
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-- name: github.com/ghodss/yaml
-  version: 73d445a93680fa1a78ae23a5839bad48f32ba1ee
-- name: github.com/go-openapi/jsonpointer
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-  - kubernetes/typed/authorization/v1
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-  - kubernetes/typed/storage/v1beta1
-  - pkg/version
-  - rest
-  - rest/watch
-  - tools/auth
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-- name: k8s.io/kube-openapi
-  version: 868f2f29720b192240e18284659231b440f9cda5
-  subpackages:
-  - pkg/common
-testImports: []

glide.yaml

@@ -1,14 +0,0 @@
-package: github.com/stakater/Reloader
-import:
-- package: k8s.io/api
-  version: kubernetes-1.8.0
-- package: k8s.io/apimachinery
-  version: kubernetes-1.8.0
-- package: k8s.io/client-go
-  version: 5.0.0
-- package: github.com/spf13/cobra
-  version: 0.0.3
-- package: github.com/spf13/pflag
-  version: 1.0.1
-- package: github.com/sirupsen/logrus
-  version: 1.0.5

go.mod

@@ -0,0 +1,26 @@
+module github.com/stakater/Reloader
+
+go 1.15
+
+require (
+	github.com/golang/groupcache v0.0.0-20191002201903-404acd9df4cc // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/onsi/ginkgo v1.10.2 // indirect
+	github.com/onsi/gomega v1.7.0 // indirect
+	github.com/openshift/api v3.9.1-0.20190923092516-169848dd8137+incompatible
+	github.com/openshift/client-go v0.0.0-20190923092832-6afefc9bb372
+	github.com/prometheus/client_golang v1.4.1
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/cobra v0.0.0-20160722081547-f62e98d28ab7
+	k8s.io/api v0.0.0-20190918155943-95b840bb6a1f
+	k8s.io/apimachinery v0.0.0-20191004115801-a2eda9f80ab8
+	k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90
+)
+
+replace (
+	github.com/openshift/api => github.com/openshift/api v3.9.1-0.20190923092516-169848dd8137+incompatible // prebase-1.16
+	github.com/openshift/client-go => github.com/openshift/client-go v0.0.0-20190923092832-6afefc9bb372 // prebase-1.16
+	k8s.io/api => k8s.io/api v0.0.0-20191004120104-195af9ec3521 // release-1.16
+	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20191004115801-a2eda9f80ab8 // kubernetes-1.16.0
+	k8s.io/client-go => k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90 // kubernetes-1.16.0
+)

go.sum

@@ -0,0 +1,288 @@
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internal/pkg/callbacks/rolling_upgrade.go

@@ -0,0 +1,209 @@
+package callbacks
+
+import (
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	"github.com/stakater/Reloader/pkg/kube"
+	appsv1 "k8s.io/api/apps/v1"
+	v1 "k8s.io/api/core/v1"
+	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	openshiftv1 "github.com/openshift/api/apps/v1"
+)
+
+//ItemsFunc is a generic function to return a specific resource array in given namespace
+type ItemsFunc func(kube.Clients, string) []interface{}
+
+//ContainersFunc is a generic func to return containers
+type ContainersFunc func(interface{}) []v1.Container
+
+//InitContainersFunc is a generic func to return containers
+type InitContainersFunc func(interface{}) []v1.Container
+
+//VolumesFunc is a generic func to return volumes
+type VolumesFunc func(interface{}) []v1.Volume
+
+//UpdateFunc performs the resource update
+type UpdateFunc func(kube.Clients, string, interface{}) error
+
+//AnnotationsFunc is a generic func to return annotations
+type AnnotationsFunc func(interface{}) map[string]string
+
+//PodAnnotationsFunc is a generic func to return annotations
+type PodAnnotationsFunc func(interface{}) map[string]string
+
+//RollingUpgradeFuncs contains generic functions to perform rolling upgrade
+type RollingUpgradeFuncs struct {
+	ItemsFunc          ItemsFunc
+	AnnotationsFunc    AnnotationsFunc
+	PodAnnotationsFunc PodAnnotationsFunc
+	ContainersFunc     ContainersFunc
+	InitContainersFunc InitContainersFunc
+	UpdateFunc         UpdateFunc
+	VolumesFunc        VolumesFunc
+	ResourceType       string
+}
+
+// GetDeploymentItems returns the deployments in given namespace
+func GetDeploymentItems(clients kube.Clients, namespace string) []interface{} {
+	deployments, err := clients.KubernetesClient.AppsV1().Deployments(namespace).List(meta_v1.ListOptions{})
+	if err != nil {
+		logrus.Errorf("Failed to list deployments %v", err)
+	}
+	return util.InterfaceSlice(deployments.Items)
+}
+
+// GetDaemonSetItems returns the daemonSets in given namespace
+func GetDaemonSetItems(clients kube.Clients, namespace string) []interface{} {
+	daemonSets, err := clients.KubernetesClient.AppsV1().DaemonSets(namespace).List(meta_v1.ListOptions{})
+	if err != nil {
+		logrus.Errorf("Failed to list daemonSets %v", err)
+	}
+	return util.InterfaceSlice(daemonSets.Items)
+}
+
+// GetStatefulSetItems returns the statefulSets in given namespace
+func GetStatefulSetItems(clients kube.Clients, namespace string) []interface{} {
+	statefulSets, err := clients.KubernetesClient.AppsV1().StatefulSets(namespace).List(meta_v1.ListOptions{})
+	if err != nil {
+		logrus.Errorf("Failed to list statefulSets %v", err)
+	}
+	return util.InterfaceSlice(statefulSets.Items)
+}
+
+// GetDeploymentConfigItems returns the deploymentConfigs in given namespace
+func GetDeploymentConfigItems(clients kube.Clients, namespace string) []interface{} {
+	deploymentConfigs, err := clients.OpenshiftAppsClient.AppsV1().DeploymentConfigs(namespace).List(meta_v1.ListOptions{})
+	if err != nil {
+		logrus.Errorf("Failed to list deploymentConfigs %v", err)
+	}
+	return util.InterfaceSlice(deploymentConfigs.Items)
+}
+
+// GetDeploymentAnnotations returns the annotations of given deployment
+func GetDeploymentAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.Deployment).ObjectMeta.Annotations
+}
+
+// GetDaemonSetAnnotations returns the annotations of given daemonSet
+func GetDaemonSetAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.DaemonSet).ObjectMeta.Annotations
+}
+
+// GetStatefulSetAnnotations returns the annotations of given statefulSet
+func GetStatefulSetAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.StatefulSet).ObjectMeta.Annotations
+}
+
+// GetDeploymentConfigAnnotations returns the annotations of given deploymentConfig
+func GetDeploymentConfigAnnotations(item interface{}) map[string]string {
+	return item.(openshiftv1.DeploymentConfig).ObjectMeta.Annotations
+}
+
+// GetDeploymentPodAnnotations returns the pod's annotations of given deployment
+func GetDeploymentPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.Deployment).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetDaemonSetPodAnnotations returns the pod's annotations of given daemonSet
+func GetDaemonSetPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.DaemonSet).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetStatefulSetPodAnnotations returns the pod's annotations of given statefulSet
+func GetStatefulSetPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.StatefulSet).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetDeploymentConfigPodAnnotations returns the pod's annotations of given deploymentConfig
+func GetDeploymentConfigPodAnnotations(item interface{}) map[string]string {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetDeploymentContainers returns the containers of given deployment
+func GetDeploymentContainers(item interface{}) []v1.Container {
+	return item.(appsv1.Deployment).Spec.Template.Spec.Containers
+}
+
+// GetDaemonSetContainers returns the containers of given daemonSet
+func GetDaemonSetContainers(item interface{}) []v1.Container {
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.Containers
+}
+
+// GetStatefulSetContainers returns the containers of given statefulSet
+func GetStatefulSetContainers(item interface{}) []v1.Container {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.Containers
+}
+
+// GetDeploymentConfigContainers returns the containers of given deploymentConfig
+func GetDeploymentConfigContainers(item interface{}) []v1.Container {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.Containers
+}
+
+// GetDeploymentInitContainers returns the containers of given deployment
+func GetDeploymentInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.Deployment).Spec.Template.Spec.InitContainers
+}
+
+// GetDaemonSetInitContainers returns the containers of given daemonSet
+func GetDaemonSetInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.InitContainers
+}
+
+// GetStatefulSetInitContainers returns the containers of given statefulSet
+func GetStatefulSetInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.InitContainers
+}
+
+// GetDeploymentConfigInitContainers returns the containers of given deploymentConfig
+func GetDeploymentConfigInitContainers(item interface{}) []v1.Container {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.InitContainers
+}
+
+// UpdateDeployment performs rolling upgrade on deployment
+func UpdateDeployment(clients kube.Clients, namespace string, resource interface{}) error {
+	deployment := resource.(appsv1.Deployment)
+	_, err := clients.KubernetesClient.AppsV1().Deployments(namespace).Update(&deployment)
+	return err
+}
+
+// UpdateDaemonSet performs rolling upgrade on daemonSet
+func UpdateDaemonSet(clients kube.Clients, namespace string, resource interface{}) error {
+	daemonSet := resource.(appsv1.DaemonSet)
+	_, err := clients.KubernetesClient.AppsV1().DaemonSets(namespace).Update(&daemonSet)
+	return err
+}
+
+// UpdateStatefulSet performs rolling upgrade on statefulSet
+func UpdateStatefulSet(clients kube.Clients, namespace string, resource interface{}) error {
+	statefulSet := resource.(appsv1.StatefulSet)
+	_, err := clients.KubernetesClient.AppsV1().StatefulSets(namespace).Update(&statefulSet)
+	return err
+}
+
+// UpdateDeploymentConfig performs rolling upgrade on deploymentConfig
+func UpdateDeploymentConfig(clients kube.Clients, namespace string, resource interface{}) error {
+	deploymentConfig := resource.(openshiftv1.DeploymentConfig)
+	_, err := clients.OpenshiftAppsClient.AppsV1().DeploymentConfigs(namespace).Update(&deploymentConfig)
+	return err
+}
+
+// GetDeploymentVolumes returns the Volumes of given deployment
+func GetDeploymentVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.Deployment).Spec.Template.Spec.Volumes
+}
+
+// GetDaemonSetVolumes returns the Volumes of given daemonSet
+func GetDaemonSetVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.Volumes
+}
+
+// GetStatefulSetVolumes returns the Volumes of given statefulSet
+func GetStatefulSetVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.Volumes
+}
+
+// GetDeploymentConfigVolumes returns the Volumes of given deploymentConfig
+func GetDeploymentConfigVolumes(item interface{}) []v1.Volume {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.Volumes
+}

internal/pkg/cmd/reloader.go

@@ -1,13 +1,18 @@
 package cmd
 
 import (
+	"errors"
+	"fmt"
 	"os"
 
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"github.com/stakater/Reloader/internal/pkg/controller"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	"github.com/stakater/Reloader/internal/pkg/util"
 	"github.com/stakater/Reloader/pkg/kube"
-	"k8s.io/apimachinery/pkg/apis/meta/v1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
 // NewReloaderCommand starts the reloader controller
@@ -17,10 +22,38 @@ func NewReloaderCommand() *cobra.Command {
 		Short: "A watcher for your Kubernetes cluster",
 		Run:   startReloader,
 	}
+
+	// options
+	cmd.PersistentFlags().StringVar(&options.ConfigmapUpdateOnChangeAnnotation, "configmap-annotation", "configmap.reloader.stakater.com/reload", "annotation to detect changes in configmaps, specified by name")
+	cmd.PersistentFlags().StringVar(&options.SecretUpdateOnChangeAnnotation, "secret-annotation", "secret.reloader.stakater.com/reload", "annotation to detect changes in secrets, specified by name")
+	cmd.PersistentFlags().StringVar(&options.ReloaderAutoAnnotation, "auto-annotation", "reloader.stakater.com/auto", "annotation to detect changes in secrets")
+	cmd.PersistentFlags().StringVar(&options.AutoSearchAnnotation, "auto-search-annotation", "reloader.stakater.com/search", "annotation to detect changes in configmaps or secrets tagged with special match annotation")
+	cmd.PersistentFlags().StringVar(&options.SearchMatchAnnotation, "search-match-annotation", "reloader.stakater.com/match", "annotation to mark secrets or configmapts to match the search")
+	cmd.PersistentFlags().StringVar(&options.LogFormat, "log-format", "", "Log format to use (empty string for text, or JSON")
+	cmd.PersistentFlags().StringSlice("resources-to-ignore", []string{}, "list of resources to ignore (valid options 'configMaps' or 'secrets')")
+	cmd.PersistentFlags().StringSlice("namespaces-to-ignore", []string{}, "list of namespaces to ignore")
 	return cmd
 }
 
+func configureLogging(logFormat string) error {
+	switch logFormat {
+	case "json":
+		logrus.SetFormatter(&logrus.JSONFormatter{})
+	default:
+		// just let the library use default on empty string.
+		if logFormat != "" {
+			return fmt.Errorf("unsupported logging formatter: %q", logFormat)
+		}
+	}
+	return nil
+}
+
 func startReloader(cmd *cobra.Command, args []string) {
+	err := configureLogging(options.LogFormat)
+	if err != nil {
+		logrus.Warn(err)
+	}
+
 	logrus.Info("Starting Reloader")
 	currentNamespace := os.Getenv("KUBERNETES_NAMESPACE")
 	if len(currentNamespace) == 0 {
@@ -29,13 +62,29 @@ func startReloader(cmd *cobra.Command, args []string) {
 	}
 
 	// create the clientset
-	clientset, err := kube.GetClient()
+	clientset, err := kube.GetKubernetesClient()
 	if err != nil {
 		logrus.Fatal(err)
 	}
 
+	ignoredResourcesList, err := getIgnoredResourcesList(cmd)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	ignoredNamespacesList, err := getIgnoredNamespacesList(cmd)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	collectors := metrics.SetupPrometheusEndpoint()
+
 	for k := range kube.ResourceMap {
-		c, err := controller.NewController(clientset, k, currentNamespace)
+		if ignoredResourcesList.Contains(k) {
+			continue
+		}
+
+		c, err := controller.NewController(clientset, k, currentNamespace, ignoredNamespacesList, collectors)
 		if err != nil {
 			logrus.Fatalf("%s", err)
 		}
@@ -43,10 +92,43 @@ func startReloader(cmd *cobra.Command, args []string) {
 		// Now let's start the controller
 		stop := make(chan struct{})
 		defer close(stop)
-
+		logrus.Infof("Starting Controller to watch resource type: %s", k)
 		go c.Run(1, stop)
 	}
 
 	// Wait forever
 	select {}
 }
+
+func getIgnoredNamespacesList(cmd *cobra.Command) (util.List, error) {
+	return getStringSliceFromFlags(cmd, "namespaces-to-ignore")
+}
+
+func getStringSliceFromFlags(cmd *cobra.Command, flag string) ([]string, error) {
+	slice, err := cmd.Flags().GetStringSlice(flag)
+	if err != nil {
+		return nil, err
+	}
+
+	return slice, nil
+}
+
+func getIgnoredResourcesList(cmd *cobra.Command) (util.List, error) {
+
+	ignoredResourcesList, err := getStringSliceFromFlags(cmd, "resources-to-ignore")
+	if err != nil {
+		return nil, err
+	}
+
+	for _, v := range ignoredResourcesList {
+		if v != "configMaps" && v != "secrets" {
+			return nil, fmt.Errorf("'resources-to-ignore' only accepts 'configMaps' or 'secrets', not '%s'", v)
+		}
+	}
+
+	if len(ignoredResourcesList) > 1 {
+		return nil, errors.New("'resources-to-ignore' only accepts 'configMaps' or 'secrets', not both")
+	}
+
+	return ignoredResourcesList, nil
+}

internal/pkg/constants/constants.go

@@ -0,0 +1,10 @@
+package constants
+
+const (
+	// ConfigmapEnvVarPostfix is a postfix for configmap envVar
+	ConfigmapEnvVarPostfix = "CONFIGMAP"
+	// SecretEnvVarPostfix is a postfix for secret envVar
+	SecretEnvVarPostfix = "SECRET"
+	// EnvVarPrefix is a Prefix for environment variable
+	EnvVarPrefix = "STAKATER_"
+)

internal/pkg/constants/enums.go

@@ -0,0 +1,15 @@
+package constants
+
+// Result is a status for deployment update
+type Result int
+
+const (
+	// Updated is returned when environment variable is created/updated
+	Updated Result = 1 + iota
+	// NotUpdated is returned when environment variable is found but had value equals to the new value
+	NotUpdated
+	// NoEnvVarFound is returned when no environment variable is found
+	NoEnvVarFound
+	// NoContainerFound is returned when no environment variable is found
+	NoContainerFound
+)

internal/pkg/controller/controller.go

@@ -6,32 +6,38 @@ import (
 
 	"github.com/sirupsen/logrus"
 	"github.com/stakater/Reloader/internal/pkg/handler"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/util"
 	"github.com/stakater/Reloader/pkg/kube"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/util/runtime"
-	errorHandler "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/util/workqueue"
+
+	v1 "k8s.io/api/core/v1"
 )
 
 // Controller for checking events
 type Controller struct {
-	client    kubernetes.Interface
-	indexer   cache.Indexer
-	queue     workqueue.RateLimitingInterface
-	informer  cache.Controller
-	namespace string
+	client            kubernetes.Interface
+	indexer           cache.Indexer
+	queue             workqueue.RateLimitingInterface
+	informer          cache.Controller
+	namespace         string
+	ignoredNamespaces util.List
+	collectors        metrics.Collectors
 }
 
 // NewController for initializing a Controller
 func NewController(
-	client kubernetes.Interface, resource string, namespace string) (*Controller, error) {
+	client kubernetes.Interface, resource string, namespace string, ignoredNamespaces []string, collectors metrics.Collectors) (*Controller, error) {
 
 	c := Controller{
-		client:    client,
-		namespace: namespace,
+		client:            client,
+		namespace:         namespace,
+		ignoredNamespaces: ignoredNamespaces,
 	}
 
 	queue := workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter())
@@ -45,35 +51,45 @@ func NewController(
 	c.indexer = indexer
 	c.informer = informer
 	c.queue = queue
+	c.collectors = collectors
 	return &c, nil
 }
 
 // Add function to add a new object to the queue in case of creating a resource
 func (c *Controller) Add(obj interface{}) {
-	c.queue.Add(handler.ResourceCreatedHandler{
-		Resource: obj,
-	})
+	// Not required as reloader should update the resource in the event of any change and not in the event of any resource creation.
+	// This causes the issue where reloader reloads the pods when reloader itself gets restarted as it's queue is filled with all the k8s objects as new resources.
+}
+
+func (c *Controller) resourceInIgnoredNamespace(raw interface{}) bool {
+	switch object := raw.(type) {
+	case *v1.ConfigMap:
+		return c.ignoredNamespaces.Contains(object.ObjectMeta.Namespace)
+	case *v1.Secret:
+		return c.ignoredNamespaces.Contains(object.ObjectMeta.Namespace)
+	}
+	return false
 }
 
 // Update function to add an old object and a new object to the queue in case of updating a resource
 func (c *Controller) Update(old interface{}, new interface{}) {
-	c.queue.Add(handler.ResourceUpdatedHandler{
-		Resource:    new,
-		OldResource: old,
-	})
+	if !c.resourceInIgnoredNamespace(new) {
+		c.queue.Add(handler.ResourceUpdatedHandler{
+			Resource:    new,
+			OldResource: old,
+			Collectors:  c.collectors,
+		})
+	}
 }
 
 // Delete function to add an object to the queue in case of deleting a resource
 func (c *Controller) Delete(old interface{}) {
-	// TODO Added this function for future usecase
-	logrus.Infof("Deleted resource has been detected but no further implementation found to take action")
+	// Todo: Any future delete event can be handled here
 }
 
 //Run function for controller which handles the queue
 func (c *Controller) Run(threadiness int, stopCh chan struct{}) {
-
-	logrus.Infof("Starting Controller")
-	defer errorHandler.HandleCrash()
+	defer runtime.HandleCrash()
 
 	// Let the workers stop when we are done
 	defer c.queue.ShutDown()
@@ -82,7 +98,7 @@ func (c *Controller) Run(threadiness int, stopCh chan struct{}) {
 
 	// Wait for all involved caches to be synced, before processing items from the queue is started
 	if !cache.WaitForCacheSync(stopCh, c.informer.HasSynced) {
-		errorHandler.HandleError(fmt.Errorf("Timed out waiting for caches to sync"))
+		runtime.HandleError(fmt.Errorf("Timed out waiting for caches to sync"))
 		return
 	}
 

internal/pkg/crypto/sha.go

@@ -0,0 +1,20 @@
+package crypto
+
+import (
+	"crypto/sha1"
+	"fmt"
+	"io"
+
+	"github.com/sirupsen/logrus"
+)
+
+// GenerateSHA generates SHA from string
+func GenerateSHA(data string) string {
+	hasher := sha1.New()
+	_, err := io.WriteString(hasher, data)
+	if err != nil {
+		logrus.Errorf("Unable to write data in hash writer %v", err)
+	}
+	sha := hasher.Sum(nil)
+	return fmt.Sprintf("%x", sha)
+}

internal/pkg/crypto/sha_test.go

@@ -0,0 +1,15 @@
+package crypto
+
+import (
+	"testing"
+)
+
+// TestGenerateSHA generates the sha from given data and verifies whether it is correct or not
+func TestGenerateSHA(t *testing.T) {
+	data := "www.stakater.com"
+	sha := "abd4ed82fb04548388a6cf3c339fd9dc84d275df"
+	result := GenerateSHA(data)
+	if result != sha {
+		t.Errorf("Failed to generate SHA")
+	}
+}

internal/pkg/handler/create.go

@@ -0,0 +1,40 @@
+package handler
+
+import (
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	v1 "k8s.io/api/core/v1"
+)
+
+// ResourceCreatedHandler contains new objects
+type ResourceCreatedHandler struct {
+	Resource   interface{}
+	Collectors metrics.Collectors
+}
+
+// Handle processes the newly created resource
+func (r ResourceCreatedHandler) Handle() error {
+	if r.Resource == nil {
+		logrus.Errorf("Resource creation handler received nil resource")
+	} else {
+		config, _ := r.GetConfig()
+		// process resource based on its type
+		doRollingUpgrade(config, r.Collectors)
+	}
+	return nil
+}
+
+// GetConfig gets configurations containing SHA, annotations, namespace and resource name
+func (r ResourceCreatedHandler) GetConfig() (util.Config, string) {
+	var oldSHAData string
+	var config util.Config
+	if _, ok := r.Resource.(*v1.ConfigMap); ok {
+		config = util.GetConfigmapConfig(r.Resource.(*v1.ConfigMap))
+	} else if _, ok := r.Resource.(*v1.Secret); ok {
+		config = util.GetSecretConfig(r.Resource.(*v1.Secret))
+	} else {
+		logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found, %v", r.Resource)
+	}
+	return config, oldSHAData
+}

internal/pkg/handler/created-handler.go

@@ -1,29 +0,0 @@
-package handler
-
-import (
-	"github.com/sirupsen/logrus"
-	"k8s.io/api/core/v1"
-)
-
-// ResourceCreatedHandler contains new objects
-type ResourceCreatedHandler struct {
-	Resource interface{}
-}
-
-// Handle processes the newly created resource
-func (r ResourceCreatedHandler) Handle() error {
-	if r.Resource == nil {
-		logrus.Errorf("Error in Handler")
-	} else {
-		logrus.Infof("Detected changes in object %s", r.Resource)
-		// process resource based on its type
-		if _, ok := r.Resource.(*v1.ConfigMap); ok {
-			logrus.Infof("Performing 'Added' action for resource of type 'configmap'")
-		} else if _, ok := r.Resource.(*v1.Secret); ok {
-			logrus.Infof("Performing 'Added' action for resource of type 'secret'")
-		} else {
-			logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found %v", r.Resource)
-		}
-	}
-	return nil
-}

internal/pkg/handler/handler.go

@@ -1,6 +1,11 @@
 package handler
 
+import (
+	"github.com/stakater/Reloader/internal/pkg/util"
+)
+
 // ResourceHandler handles the creation and update of resources
 type ResourceHandler interface {
 	Handle() error
+	GetConfig() (util.Config, string)
 }

internal/pkg/handler/update.go

@@ -0,0 +1,45 @@
+package handler
+
+import (
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	v1 "k8s.io/api/core/v1"
+)
+
+// ResourceUpdatedHandler contains updated objects
+type ResourceUpdatedHandler struct {
+	Resource    interface{}
+	OldResource interface{}
+	Collectors  metrics.Collectors
+}
+
+// Handle processes the updated resource
+func (r ResourceUpdatedHandler) Handle() error {
+	if r.Resource == nil || r.OldResource == nil {
+		logrus.Errorf("Resource update handler received nil resource")
+	} else {
+		config, oldSHAData := r.GetConfig()
+		if config.SHAValue != oldSHAData {
+			// process resource based on its type
+			doRollingUpgrade(config, r.Collectors)
+		}
+	}
+	return nil
+}
+
+// GetConfig gets configurations containing SHA, annotations, namespace and resource name
+func (r ResourceUpdatedHandler) GetConfig() (util.Config, string) {
+	var oldSHAData string
+	var config util.Config
+	if _, ok := r.Resource.(*v1.ConfigMap); ok {
+		oldSHAData = util.GetSHAfromConfigmap(r.OldResource.(*v1.ConfigMap))
+		config = util.GetConfigmapConfig(r.Resource.(*v1.ConfigMap))
+	} else if _, ok := r.Resource.(*v1.Secret); ok {
+		oldSHAData = util.GetSHAfromSecret(r.OldResource.(*v1.Secret).Data)
+		config = util.GetSecretConfig(r.Resource.(*v1.Secret))
+	} else {
+		logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found, %v", r.Resource)
+	}
+	return config, oldSHAData
+}

internal/pkg/handler/updated-handler.go

@@ -1,30 +0,0 @@
-package handler
-
-import (
-	"github.com/sirupsen/logrus"
-	"k8s.io/api/core/v1"
-)
-
-// ResourceUpdatedHandler contains updated objects
-type ResourceUpdatedHandler struct {
-	Resource    interface{}
-	OldResource interface{}
-}
-
-// Handle processes the updated resource
-func (r ResourceUpdatedHandler) Handle() error {
-	if r.Resource == nil || r.OldResource == nil {
-		logrus.Errorf("Error in Handler")
-	} else {
-		logrus.Infof("Detected changes in object %s", r.Resource)
-		// process resource based on its type
-		if _, ok := r.Resource.(*v1.ConfigMap); ok {
-			logrus.Infof("Performing 'Updated' action for resource of type 'configmap'")
-		} else if _, ok := r.Resource.(*v1.Secret); ok {
-			logrus.Infof("Performing 'Updated' action for resource of type 'secret'")
-		} else {
-			logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found %v", r.Resource)
-		}
-	}
-	return nil
-}

internal/pkg/handler/upgrade.go

@@ -0,0 +1,300 @@
+package handler
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/callbacks"
+	"github.com/stakater/Reloader/internal/pkg/constants"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	"github.com/stakater/Reloader/pkg/kube"
+	v1 "k8s.io/api/core/v1"
+)
+
+// GetDeploymentRollingUpgradeFuncs returns all callback funcs for a deployment
+func GetDeploymentRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDeploymentItems,
+		AnnotationsFunc:    callbacks.GetDeploymentAnnotations,
+		PodAnnotationsFunc: callbacks.GetDeploymentPodAnnotations,
+		ContainersFunc:     callbacks.GetDeploymentContainers,
+		InitContainersFunc: callbacks.GetDeploymentInitContainers,
+		UpdateFunc:         callbacks.UpdateDeployment,
+		VolumesFunc:        callbacks.GetDeploymentVolumes,
+		ResourceType:       "Deployment",
+	}
+}
+
+// GetDaemonSetRollingUpgradeFuncs returns all callback funcs for a daemonset
+func GetDaemonSetRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDaemonSetItems,
+		AnnotationsFunc:    callbacks.GetDaemonSetAnnotations,
+		PodAnnotationsFunc: callbacks.GetDaemonSetPodAnnotations,
+		ContainersFunc:     callbacks.GetDaemonSetContainers,
+		InitContainersFunc: callbacks.GetDaemonSetInitContainers,
+		UpdateFunc:         callbacks.UpdateDaemonSet,
+		VolumesFunc:        callbacks.GetDaemonSetVolumes,
+		ResourceType:       "DaemonSet",
+	}
+}
+
+// GetStatefulSetRollingUpgradeFuncs returns all callback funcs for a statefulSet
+func GetStatefulSetRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetStatefulSetItems,
+		AnnotationsFunc:    callbacks.GetStatefulSetAnnotations,
+		PodAnnotationsFunc: callbacks.GetStatefulSetPodAnnotations,
+		ContainersFunc:     callbacks.GetStatefulSetContainers,
+		InitContainersFunc: callbacks.GetStatefulSetInitContainers,
+		UpdateFunc:         callbacks.UpdateStatefulSet,
+		VolumesFunc:        callbacks.GetStatefulSetVolumes,
+		ResourceType:       "StatefulSet",
+	}
+}
+
+// GetDeploymentConfigRollingUpgradeFuncs returns all callback funcs for a deploymentConfig
+func GetDeploymentConfigRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDeploymentConfigItems,
+		AnnotationsFunc:    callbacks.GetDeploymentConfigAnnotations,
+		PodAnnotationsFunc: callbacks.GetDeploymentConfigPodAnnotations,
+		ContainersFunc:     callbacks.GetDeploymentConfigContainers,
+		InitContainersFunc: callbacks.GetDeploymentConfigInitContainers,
+		UpdateFunc:         callbacks.UpdateDeploymentConfig,
+		VolumesFunc:        callbacks.GetDeploymentConfigVolumes,
+		ResourceType:       "DeploymentConfig",
+	}
+}
+
+func doRollingUpgrade(config util.Config, collectors metrics.Collectors) {
+	clients := kube.GetClients()
+
+	rollingUpgrade(clients, config, GetDeploymentRollingUpgradeFuncs(), collectors)
+	rollingUpgrade(clients, config, GetDaemonSetRollingUpgradeFuncs(), collectors)
+	rollingUpgrade(clients, config, GetStatefulSetRollingUpgradeFuncs(), collectors)
+
+	if kube.IsOpenshift {
+		rollingUpgrade(clients, config, GetDeploymentConfigRollingUpgradeFuncs(), collectors)
+	}
+}
+
+func rollingUpgrade(clients kube.Clients, config util.Config, upgradeFuncs callbacks.RollingUpgradeFuncs, collectors metrics.Collectors) {
+
+	err := PerformRollingUpgrade(clients, config, upgradeFuncs, collectors)
+	if err != nil {
+		logrus.Errorf("Rolling upgrade for '%s' failed with error = %v", config.ResourceName, err)
+	}
+}
+
+// PerformRollingUpgrade upgrades the deployment if there is any change in configmap or secret data
+func PerformRollingUpgrade(clients kube.Clients, config util.Config, upgradeFuncs callbacks.RollingUpgradeFuncs, collectors metrics.Collectors) error {
+	items := upgradeFuncs.ItemsFunc(clients, config.Namespace)
+	var err error
+	for _, i := range items {
+		// find correct annotation and update the resource
+		annotations := upgradeFuncs.AnnotationsFunc(i)
+		annotationValue, found := annotations[config.Annotation]
+		searchAnnotationValue, foundSearchAnn := annotations[options.AutoSearchAnnotation]
+		reloaderEnabledValue, foundAuto := annotations[options.ReloaderAutoAnnotation]
+		if !found && !foundAuto && !foundSearchAnn {
+			annotations = upgradeFuncs.PodAnnotationsFunc(i)
+			annotationValue = annotations[config.Annotation]
+			searchAnnotationValue = annotations[options.AutoSearchAnnotation]
+			reloaderEnabledValue = annotations[options.ReloaderAutoAnnotation]
+		}
+		result := constants.NotUpdated
+		reloaderEnabled, err := strconv.ParseBool(reloaderEnabledValue)
+		if err == nil && reloaderEnabled {
+			result = updateContainers(upgradeFuncs, i, config, true)
+		}
+
+		if result != constants.Updated && annotationValue != "" {
+			values := strings.Split(annotationValue, ",")
+			for _, value := range values {
+				value = strings.Trim(value, " ")
+				if value == config.ResourceName {
+					result = updateContainers(upgradeFuncs, i, config, false)
+					if result == constants.Updated {
+						break
+					}
+				}
+			}
+		}
+
+		if result != constants.Updated && searchAnnotationValue == "true" {
+			matchAnnotationValue := config.ResourceAnnotations[options.SearchMatchAnnotation]
+			if matchAnnotationValue == "true" {
+				result = updateContainers(upgradeFuncs, i, config, true)
+			}
+		}
+
+		if result == constants.Updated {
+			err = upgradeFuncs.UpdateFunc(clients, config.Namespace, i)
+			resourceName := util.ToObjectMeta(i).Name
+			if err != nil {
+				logrus.Errorf("Update for '%s' of type '%s' in namespace '%s' failed with error %v", resourceName, upgradeFuncs.ResourceType, config.Namespace, err)
+				collectors.Reloaded.With(prometheus.Labels{"success": "false"}).Inc()
+			} else {
+				logrus.Infof("Changes detected in '%s' of type '%s' in namespace '%s'", config.ResourceName, config.Type, config.Namespace)
+				logrus.Infof("Updated '%s' of type '%s' in namespace '%s'", resourceName, upgradeFuncs.ResourceType, config.Namespace)
+				collectors.Reloaded.With(prometheus.Labels{"success": "true"}).Inc()
+			}
+		}
+	}
+	return err
+}
+
+func getVolumeMountName(volumes []v1.Volume, mountType string, volumeName string) string {
+	for i := range volumes {
+		if mountType == constants.ConfigmapEnvVarPostfix {
+			if volumes[i].ConfigMap != nil && volumes[i].ConfigMap.Name == volumeName {
+				return volumes[i].Name
+			}
+
+			if volumes[i].Projected != nil {
+				for j := range volumes[i].Projected.Sources {
+					if volumes[i].Projected.Sources[j].ConfigMap != nil && volumes[i].Projected.Sources[j].ConfigMap.Name == volumeName {
+						return volumes[i].Name
+					}
+				}
+			}
+		} else if mountType == constants.SecretEnvVarPostfix {
+			if volumes[i].Secret != nil && volumes[i].Secret.SecretName == volumeName {
+				return volumes[i].Name
+			}
+
+			if volumes[i].Projected != nil {
+				for j := range volumes[i].Projected.Sources {
+					if volumes[i].Projected.Sources[j].Secret != nil && volumes[i].Projected.Sources[j].Secret.Name == volumeName {
+						return volumes[i].Name
+					}
+				}
+			}
+		}
+	}
+
+	return ""
+}
+
+func getContainerWithVolumeMount(containers []v1.Container, volumeMountName string) *v1.Container {
+	for i := range containers {
+		volumeMounts := containers[i].VolumeMounts
+		for j := range volumeMounts {
+			if volumeMounts[j].Name == volumeMountName {
+				return &containers[i]
+			}
+		}
+	}
+
+	return nil
+}
+
+func getContainerWithEnvReference(containers []v1.Container, resourceName string, resourceType string) *v1.Container {
+	for i := range containers {
+		envs := containers[i].Env
+		for j := range envs {
+			envVarSource := envs[j].ValueFrom
+			if envVarSource != nil {
+				if resourceType == constants.SecretEnvVarPostfix && envVarSource.SecretKeyRef != nil && envVarSource.SecretKeyRef.LocalObjectReference.Name == resourceName {
+					return &containers[i]
+				} else if resourceType == constants.ConfigmapEnvVarPostfix && envVarSource.ConfigMapKeyRef != nil && envVarSource.ConfigMapKeyRef.LocalObjectReference.Name == resourceName {
+					return &containers[i]
+				}
+			}
+		}
+
+		envsFrom := containers[i].EnvFrom
+		for j := range envsFrom {
+			if resourceType == constants.SecretEnvVarPostfix && envsFrom[j].SecretRef != nil && envsFrom[j].SecretRef.LocalObjectReference.Name == resourceName {
+				return &containers[i]
+			} else if resourceType == constants.ConfigmapEnvVarPostfix && envsFrom[j].ConfigMapRef != nil && envsFrom[j].ConfigMapRef.LocalObjectReference.Name == resourceName {
+				return &containers[i]
+			}
+		}
+	}
+	return nil
+}
+
+func getContainerToUpdate(upgradeFuncs callbacks.RollingUpgradeFuncs, item interface{}, config util.Config, autoReload bool) *v1.Container {
+	volumes := upgradeFuncs.VolumesFunc(item)
+	containers := upgradeFuncs.ContainersFunc(item)
+	initContainers := upgradeFuncs.InitContainersFunc(item)
+	var container *v1.Container
+	// Get the volumeMountName to find volumeMount in container
+	volumeMountName := getVolumeMountName(volumes, config.Type, config.ResourceName)
+	// Get the container with mounted configmap/secret
+	if volumeMountName != "" {
+		container = getContainerWithVolumeMount(containers, volumeMountName)
+		if container == nil && len(initContainers) > 0 {
+			container = getContainerWithVolumeMount(initContainers, volumeMountName)
+			if container != nil {
+				// if configmap/secret is being used in init container then return the first Pod container to save reloader env
+				return &containers[0]
+			}
+		} else if container != nil {
+			return container
+		}
+	}
+
+	// Get the container with referenced secret or configmap as env var
+	container = getContainerWithEnvReference(containers, config.ResourceName, config.Type)
+	if container == nil && len(initContainers) > 0 {
+		container = getContainerWithEnvReference(initContainers, config.ResourceName, config.Type)
+		if container != nil {
+			// if configmap/secret is being used in init container then return the first Pod container to save reloader env
+			return &containers[0]
+		}
+	}
+
+	// Get the first container if the annotation is related to specified configmap or secret i.e. configmap.reloader.stakater.com/reload
+	if container == nil && !autoReload {
+		return &containers[0]
+	}
+
+	return container
+}
+
+func updateContainers(upgradeFuncs callbacks.RollingUpgradeFuncs, item interface{}, config util.Config, autoReload bool) constants.Result {
+	var result constants.Result
+	envVar := constants.EnvVarPrefix + util.ConvertToEnvVarName(config.ResourceName) + "_" + config.Type
+	container := getContainerToUpdate(upgradeFuncs, item, config, autoReload)
+
+	if container == nil {
+		return constants.NoContainerFound
+	}
+
+	//update if env var exists
+	result = updateEnvVar(upgradeFuncs.ContainersFunc(item), envVar, config.SHAValue)
+
+	// if no existing env var exists lets create one
+	if result == constants.NoEnvVarFound {
+		e := v1.EnvVar{
+			Name:  envVar,
+			Value: config.SHAValue,
+		}
+		container.Env = append(container.Env, e)
+		result = constants.Updated
+	}
+	return result
+}
+
+func updateEnvVar(containers []v1.Container, envVar string, shaData string) constants.Result {
+	for i := range containers {
+		envs := containers[i].Env
+		for j := range envs {
+			if envs[j].Name == envVar {
+				if envs[j].Value != shaData {
+					envs[j].Value = shaData
+					return constants.Updated
+				}
+				return constants.NotUpdated
+			}
+		}
+	}
+	return constants.NoEnvVarFound
+}

internal/pkg/metrics/prometheus.go

@@ -0,0 +1,43 @@
+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/sirupsen/logrus"
+	"net/http"
+)
+
+type Collectors struct {
+	Reloaded *prometheus.CounterVec
+}
+
+func NewCollectors() Collectors {
+	reloaded := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: "reloader",
+			Name:      "reload_executed_total",
+			Help:      "Counter of reloads executed by Reloader.",
+		},
+		[]string{"success"},
+	)
+
+	//set 0 as default value
+	reloaded.With(prometheus.Labels{"success": "true"}).Add(0)
+	reloaded.With(prometheus.Labels{"success": "false"}).Add(0)
+
+	return Collectors{
+		Reloaded: reloaded,
+	}
+}
+
+func SetupPrometheusEndpoint() Collectors {
+	collectors := NewCollectors()
+	prometheus.MustRegister(collectors.Reloaded)
+
+	go func() {
+		http.Handle("/metrics", promhttp.Handler())
+		logrus.Fatal(http.ListenAndServe(":9090", nil))
+	}()
+
+	return collectors
+}

internal/pkg/options/flags.go

@@ -0,0 +1,20 @@
+package options
+
+var (
+	// ConfigmapUpdateOnChangeAnnotation is an annotation to detect changes in
+	// configmaps specified by name
+	ConfigmapUpdateOnChangeAnnotation = "configmap.reloader.stakater.com/reload"
+	// SecretUpdateOnChangeAnnotation is an annotation to detect changes in
+	// secrets specified by name
+	SecretUpdateOnChangeAnnotation = "secret.reloader.stakater.com/reload"
+	// ReloaderAutoAnnotation is an annotation to detect changes in secrets
+	ReloaderAutoAnnotation = "reloader.stakater.com/auto"
+	// AutoSearchAnnotation is an annotation to detect changes in
+	// configmaps or triggers with the SearchMatchAnnotation
+	AutoSearchAnnotation = "reloader.stakater.com/search"
+	// SearchMatchAnnotation is an annotation to tag secrets to be found with
+	// AutoSearchAnnotation
+	SearchMatchAnnotation = "reloader.stakater.com/match"
+	// LogFormat is the log format to use (json, or empty string for default)
+	LogFormat = ""
+)

internal/pkg/testutil/kube.go

@@ -0,0 +1,845 @@
+package testutil
+
+import (
+	"math/rand"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	openshiftv1 "github.com/openshift/api/apps/v1"
+	appsclient "github.com/openshift/client-go/apps/clientset/versioned"
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/callbacks"
+	"github.com/stakater/Reloader/internal/pkg/constants"
+	"github.com/stakater/Reloader/internal/pkg/crypto"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	"github.com/stakater/Reloader/pkg/kube"
+	appsv1 "k8s.io/api/apps/v1"
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	core_v1 "k8s.io/client-go/kubernetes/typed/core/v1"
+)
+
+var (
+	letters = []rune("abcdefghijklmnopqrstuvwxyz")
+	// ConfigmapResourceType is a resource type which controller watches for changes
+	ConfigmapResourceType = "configMaps"
+	// SecretResourceType is a resource type which controller watches for changes
+	SecretResourceType = "secrets"
+)
+
+// CreateNamespace creates namespace for testing
+func CreateNamespace(namespace string, client kubernetes.Interface) {
+	_, err := client.CoreV1().Namespaces().Create(&v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}})
+	if err != nil {
+		logrus.Fatalf("Failed to create namespace for testing %v", err)
+	} else {
+		logrus.Infof("Creating namespace for testing = %s", namespace)
+	}
+}
+
+// DeleteNamespace deletes namespace for testing
+func DeleteNamespace(namespace string, client kubernetes.Interface) {
+	err := client.CoreV1().Namespaces().Delete(namespace, &metav1.DeleteOptions{})
+	if err != nil {
+		logrus.Fatalf("Failed to delete namespace that was created for testing %v", err)
+	} else {
+		logrus.Infof("Deleting namespace for testing = %s", namespace)
+	}
+}
+
+func getObjectMeta(namespace string, name string, autoReload bool) metav1.ObjectMeta {
+	return metav1.ObjectMeta{
+		Name:        name,
+		Namespace:   namespace,
+		Labels:      map[string]string{"firstLabel": "temp"},
+		Annotations: getAnnotations(name, autoReload),
+	}
+}
+
+func getAnnotations(name string, autoReload bool) map[string]string {
+	if autoReload {
+		return map[string]string{
+			options.ReloaderAutoAnnotation: "true"}
+	}
+
+	return map[string]string{
+		options.ConfigmapUpdateOnChangeAnnotation: name,
+		options.SecretUpdateOnChangeAnnotation:    name}
+}
+
+func getEnvVarSources(name string) []v1.EnvFromSource {
+	return []v1.EnvFromSource{
+		{
+			ConfigMapRef: &v1.ConfigMapEnvSource{
+				LocalObjectReference: v1.LocalObjectReference{
+					Name: name,
+				},
+			},
+		},
+		{
+			SecretRef: &v1.SecretEnvSource{
+				LocalObjectReference: v1.LocalObjectReference{
+					Name: name,
+				},
+			},
+		},
+	}
+}
+
+func getVolumes(name string) []v1.Volume {
+	return []v1.Volume{
+		{
+			Name: "projectedconfigmap",
+			VolumeSource: v1.VolumeSource{
+				Projected: &v1.ProjectedVolumeSource{
+					Sources: []v1.VolumeProjection{
+						{
+							ConfigMap: &v1.ConfigMapProjection{
+								LocalObjectReference: v1.LocalObjectReference{
+									Name: name,
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			Name: "projectedsecret",
+			VolumeSource: v1.VolumeSource{
+				Projected: &v1.ProjectedVolumeSource{
+					Sources: []v1.VolumeProjection{
+						{
+							Secret: &v1.SecretProjection{
+								LocalObjectReference: v1.LocalObjectReference{
+									Name: name,
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			Name: "configmap",
+			VolumeSource: v1.VolumeSource{
+				ConfigMap: &v1.ConfigMapVolumeSource{
+					LocalObjectReference: v1.LocalObjectReference{
+						Name: name,
+					},
+				},
+			},
+		},
+		{
+			Name: "secret",
+			VolumeSource: v1.VolumeSource{
+				Secret: &v1.SecretVolumeSource{
+					SecretName: name,
+				},
+			},
+		},
+	}
+}
+
+func getVolumeMounts(name string) []v1.VolumeMount {
+	return []v1.VolumeMount{
+		{
+			MountPath: "etc/config",
+			Name:      "configmap",
+		},
+		{
+			MountPath: "etc/sec",
+			Name:      "secret",
+		},
+		{
+			MountPath: "etc/projectedconfig",
+			Name:      "projectedconfigmap",
+		},
+		{
+			MountPath: "etc/projectedsec",
+			Name:      "projectedsecret",
+		},
+	}
+}
+
+func getPodTemplateSpecWithEnvVars(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+						{
+							Name: "CONFIGMAP_" + util.ConvertToEnvVarName(name),
+							ValueFrom: &v1.EnvVarSource{
+								ConfigMapKeyRef: &v1.ConfigMapKeySelector{
+									LocalObjectReference: v1.LocalObjectReference{
+										Name: name,
+									},
+									Key: "test.url",
+								},
+							},
+						},
+						{
+							Name: "SECRET_" + util.ConvertToEnvVarName(name),
+							ValueFrom: &v1.EnvVarSource{
+								SecretKeyRef: &v1.SecretKeySelector{
+									LocalObjectReference: v1.LocalObjectReference{
+										Name: name,
+									},
+									Key: "test.url",
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+func getPodTemplateSpecWithEnvVarSources(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image:   "tutum/hello-world",
+					Name:    name,
+					EnvFrom: getEnvVarSources(name),
+				},
+			},
+		},
+	}
+}
+
+func getPodTemplateSpecWithVolumes(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+					},
+					VolumeMounts: getVolumeMounts(name),
+				},
+			},
+			Volumes: getVolumes(name),
+		},
+	}
+}
+
+func getPodTemplateSpecWithInitContainer(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			InitContainers: []v1.Container{
+				{
+					Image:        "busybox",
+					Name:         "busyBox",
+					VolumeMounts: getVolumeMounts(name),
+				},
+			},
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+					},
+				},
+			},
+			Volumes: getVolumes(name),
+		},
+	}
+}
+
+func getPodTemplateSpecWithInitContainerAndEnv(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			InitContainers: []v1.Container{
+				{
+					Image:   "busybox",
+					Name:    "busyBox",
+					EnvFrom: getEnvVarSources(name),
+				},
+			},
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+// GetDeployment provides deployment for testing
+func GetDeployment(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(deploymentName),
+		},
+	}
+}
+
+// GetDeploymentConfig provides deployment for testing
+func GetDeploymentConfig(namespace string, deploymentConfigName string) *openshiftv1.DeploymentConfig {
+	replicaset := int32(1)
+	podTemplateSpecWithVolume := getPodTemplateSpecWithVolumes(deploymentConfigName)
+	return &openshiftv1.DeploymentConfig{
+		ObjectMeta: getObjectMeta(namespace, deploymentConfigName, false),
+		Spec: openshiftv1.DeploymentConfigSpec{
+			Replicas: replicaset,
+			Strategy: openshiftv1.DeploymentStrategy{
+				Type: openshiftv1.DeploymentStrategyTypeRolling,
+			},
+			Template: &podTemplateSpecWithVolume,
+		},
+	}
+}
+
+// GetDeploymentWithInitContainer provides deployment with init container and volumeMounts
+func GetDeploymentWithInitContainer(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithInitContainer(deploymentName),
+		},
+	}
+}
+
+// GetDeploymentWithInitContainerAndEnv provides deployment with init container and EnvSource
+func GetDeploymentWithInitContainerAndEnv(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithInitContainerAndEnv(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentWithEnvVars(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVars(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentConfigWithEnvVars(namespace string, deploymentConfigName string) *openshiftv1.DeploymentConfig {
+	replicaset := int32(1)
+	podTemplateSpecWithEnvVars := getPodTemplateSpecWithEnvVars(deploymentConfigName)
+	return &openshiftv1.DeploymentConfig{
+		ObjectMeta: getObjectMeta(namespace, deploymentConfigName, false),
+		Spec: openshiftv1.DeploymentConfigSpec{
+			Replicas: replicaset,
+			Strategy: openshiftv1.DeploymentStrategy{
+				Type: openshiftv1.DeploymentStrategyTypeRolling,
+			},
+			Template: &podTemplateSpecWithEnvVars,
+		},
+	}
+}
+
+func GetDeploymentWithEnvVarSources(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVarSources(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentWithPodAnnotations(namespace string, deploymentName string, both bool) *appsv1.Deployment {
+	replicaset := int32(1)
+	deployment := &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVarSources(deploymentName),
+		},
+	}
+	if !both {
+		deployment.ObjectMeta.Annotations = nil
+	}
+	deployment.Spec.Template.ObjectMeta.Annotations = getAnnotations(deploymentName, true)
+	return deployment
+}
+
+// GetDaemonSet provides daemonset for testing
+func GetDaemonSet(namespace string, daemonsetName string) *appsv1.DaemonSet {
+	return &appsv1.DaemonSet{
+		ObjectMeta: getObjectMeta(namespace, daemonsetName, false),
+		Spec: appsv1.DaemonSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.DaemonSetUpdateStrategy{
+				Type: appsv1.RollingUpdateDaemonSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(daemonsetName),
+		},
+	}
+}
+
+func GetDaemonSetWithEnvVars(namespace string, daemonSetName string) *appsv1.DaemonSet {
+	return &appsv1.DaemonSet{
+		ObjectMeta: getObjectMeta(namespace, daemonSetName, true),
+		Spec: appsv1.DaemonSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.DaemonSetUpdateStrategy{
+				Type: appsv1.RollingUpdateDaemonSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVars(daemonSetName),
+		},
+	}
+}
+
+// GetStatefulSet provides statefulset for testing
+func GetStatefulSet(namespace string, statefulsetName string) *appsv1.StatefulSet {
+	return &appsv1.StatefulSet{
+		ObjectMeta: getObjectMeta(namespace, statefulsetName, false),
+		Spec: appsv1.StatefulSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.StatefulSetUpdateStrategy{
+				Type: appsv1.RollingUpdateStatefulSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(statefulsetName),
+		},
+	}
+}
+
+// GetStatefulSet provides statefulset for testing
+func GetStatefulSetWithEnvVar(namespace string, statefulsetName string) *appsv1.StatefulSet {
+	return &appsv1.StatefulSet{
+		ObjectMeta: getObjectMeta(namespace, statefulsetName, true),
+		Spec: appsv1.StatefulSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.StatefulSetUpdateStrategy{
+				Type: appsv1.RollingUpdateStatefulSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVars(statefulsetName),
+		},
+	}
+}
+
+// GetConfigmap provides configmap for testing
+func GetConfigmap(namespace string, configmapName string, testData string) *v1.ConfigMap {
+	return &v1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      configmapName,
+			Namespace: namespace,
+			Labels:    map[string]string{"firstLabel": "temp"},
+		},
+		Data: map[string]string{"test.url": testData},
+	}
+}
+
+// GetConfigmapWithUpdatedLabel provides configmap for testing
+func GetConfigmapWithUpdatedLabel(namespace string, configmapName string, testLabel string, testData string) *v1.ConfigMap {
+	return &v1.ConfigMap{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      configmapName,
+			Namespace: namespace,
+			Labels:    map[string]string{"firstLabel": testLabel},
+		},
+		Data: map[string]string{"test.url": testData},
+	}
+}
+
+// GetSecret provides secret for testing
+func GetSecret(namespace string, secretName string, data string) *v1.Secret {
+	return &v1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      secretName,
+			Namespace: namespace,
+			Labels:    map[string]string{"firstLabel": "temp"},
+		},
+		Data: map[string][]byte{"test.url": []byte(data)},
+	}
+}
+
+// GetSecretWithUpdatedLabel provides secret for testing
+func GetSecretWithUpdatedLabel(namespace string, secretName string, label string, data string) *v1.Secret {
+	return &v1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      secretName,
+			Namespace: namespace,
+			Labels:    map[string]string{"firstLabel": label},
+		},
+		Data: map[string][]byte{"test.url": []byte(data)},
+	}
+}
+
+// GetResourceSHA returns the SHA value of given environment variable
+func GetResourceSHA(containers []v1.Container, envVar string) string {
+	for i := range containers {
+		envs := containers[i].Env
+		for j := range envs {
+			if envs[j].Name == envVar {
+				return envs[j].Value
+			}
+		}
+	}
+	return ""
+}
+
+//ConvertResourceToSHA generates SHA from secret or configmap data
+func ConvertResourceToSHA(resourceType string, namespace string, resourceName string, data string) string {
+	values := []string{}
+	if resourceType == SecretResourceType {
+		secret := GetSecret(namespace, resourceName, data)
+		for k, v := range secret.Data {
+			values = append(values, k+"="+string(v[:]))
+		}
+	} else if resourceType == ConfigmapResourceType {
+		configmap := GetConfigmap(namespace, resourceName, data)
+		for k, v := range configmap.Data {
+			values = append(values, k+"="+v)
+		}
+	}
+	sort.Strings(values)
+	return crypto.GenerateSHA(strings.Join(values, ";"))
+}
+
+// CreateConfigMap creates a configmap in given namespace and returns the ConfigMapInterface
+func CreateConfigMap(client kubernetes.Interface, namespace string, configmapName string, data string) (core_v1.ConfigMapInterface, error) {
+	logrus.Infof("Creating configmap")
+	configmapClient := client.CoreV1().ConfigMaps(namespace)
+	_, err := configmapClient.Create(GetConfigmap(namespace, configmapName, data))
+	time.Sleep(3 * time.Second)
+	return configmapClient, err
+}
+
+// CreateSecret creates a secret in given namespace and returns the SecretInterface
+func CreateSecret(client kubernetes.Interface, namespace string, secretName string, data string) (core_v1.SecretInterface, error) {
+	logrus.Infof("Creating secret")
+	secretClient := client.CoreV1().Secrets(namespace)
+	_, err := secretClient.Create(GetSecret(namespace, secretName, data))
+	time.Sleep(3 * time.Second)
+	return secretClient, err
+}
+
+// CreateDeployment creates a deployment in given namespace and returns the Deployment
+func CreateDeployment(client kubernetes.Interface, deploymentName string, namespace string, volumeMount bool) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	var deploymentObj *appsv1.Deployment
+	if volumeMount {
+		deploymentObj = GetDeployment(namespace, deploymentName)
+	} else {
+		deploymentObj = GetDeploymentWithEnvVars(namespace, deploymentName)
+	}
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentConfig creates a deploymentConfig in given namespace and returns the DeploymentConfig
+func CreateDeploymentConfig(client appsclient.Interface, deploymentName string, namespace string, volumeMount bool) (*openshiftv1.DeploymentConfig, error) {
+	logrus.Infof("Creating DeploymentConfig")
+	deploymentConfigsClient := client.AppsV1().DeploymentConfigs(namespace)
+	var deploymentConfigObj *openshiftv1.DeploymentConfig
+	if volumeMount {
+		deploymentConfigObj = GetDeploymentConfig(namespace, deploymentName)
+	} else {
+		deploymentConfigObj = GetDeploymentConfigWithEnvVars(namespace, deploymentName)
+	}
+	deploymentConfig, err := deploymentConfigsClient.Create(deploymentConfigObj)
+	time.Sleep(5 * time.Second)
+	return deploymentConfig, err
+}
+
+// CreateDeploymentWithInitContainer creates a deployment in given namespace with init container and returns the Deployment
+func CreateDeploymentWithInitContainer(client kubernetes.Interface, deploymentName string, namespace string, volumeMount bool) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	var deploymentObj *appsv1.Deployment
+	if volumeMount {
+		deploymentObj = GetDeploymentWithInitContainer(namespace, deploymentName)
+	} else {
+		deploymentObj = GetDeploymentWithInitContainerAndEnv(namespace, deploymentName)
+	}
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentWithEnvVarSource creates a deployment in given namespace and returns the Deployment
+func CreateDeploymentWithEnvVarSource(client kubernetes.Interface, deploymentName string, namespace string) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithEnvVarSources(namespace, deploymentName)
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+
+}
+
+// CreateDeploymentWithPodAnnotations creates a deployment in given namespace and returns the Deployment
+func CreateDeploymentWithPodAnnotations(client kubernetes.Interface, deploymentName string, namespace string, both bool) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithPodAnnotations(namespace, deploymentName, both)
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentWithEnvVarSourceAndAnnotations returns a deployment in given
+// namespace with given annotations.
+func CreateDeploymentWithEnvVarSourceAndAnnotations(client kubernetes.Interface, deploymentName string, namespace string, annotations map[string]string) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithEnvVarSources(namespace, deploymentName)
+	deploymentObj.Annotations = annotations
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDaemonSet creates a deployment in given namespace and returns the DaemonSet
+func CreateDaemonSet(client kubernetes.Interface, daemonsetName string, namespace string, volumeMount bool) (*appsv1.DaemonSet, error) {
+	logrus.Infof("Creating DaemonSet")
+	daemonsetClient := client.AppsV1().DaemonSets(namespace)
+	var daemonsetObj *appsv1.DaemonSet
+	if volumeMount {
+		daemonsetObj = GetDaemonSet(namespace, daemonsetName)
+	} else {
+		daemonsetObj = GetDaemonSetWithEnvVars(namespace, daemonsetName)
+	}
+	daemonset, err := daemonsetClient.Create(daemonsetObj)
+	time.Sleep(3 * time.Second)
+	return daemonset, err
+}
+
+// CreateStatefulSet creates a deployment in given namespace and returns the StatefulSet
+func CreateStatefulSet(client kubernetes.Interface, statefulsetName string, namespace string, volumeMount bool) (*appsv1.StatefulSet, error) {
+	logrus.Infof("Creating StatefulSet")
+	statefulsetClient := client.AppsV1().StatefulSets(namespace)
+	var statefulsetObj *appsv1.StatefulSet
+	if volumeMount {
+		statefulsetObj = GetStatefulSet(namespace, statefulsetName)
+	} else {
+		statefulsetObj = GetStatefulSetWithEnvVar(namespace, statefulsetName)
+	}
+	statefulset, err := statefulsetClient.Create(statefulsetObj)
+	time.Sleep(3 * time.Second)
+	return statefulset, err
+}
+
+// DeleteDeployment creates a deployment in given namespace and returns the error if any
+func DeleteDeployment(client kubernetes.Interface, namespace string, deploymentName string) error {
+	logrus.Infof("Deleting Deployment")
+	deploymentError := client.AppsV1().Deployments(namespace).Delete(deploymentName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return deploymentError
+}
+
+// DeleteDeploymentConfig deletes a deploymentConfig in given namespace and returns the error if any
+func DeleteDeploymentConfig(client appsclient.Interface, namespace string, deploymentConfigName string) error {
+	logrus.Infof("Deleting DeploymentConfig")
+	deploymentConfigError := client.AppsV1().DeploymentConfigs(namespace).Delete(deploymentConfigName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return deploymentConfigError
+}
+
+// DeleteDaemonSet creates a daemonset in given namespace and returns the error if any
+func DeleteDaemonSet(client kubernetes.Interface, namespace string, daemonsetName string) error {
+	logrus.Infof("Deleting DaemonSet %s", daemonsetName)
+	daemonsetError := client.AppsV1().DaemonSets(namespace).Delete(daemonsetName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return daemonsetError
+}
+
+// DeleteStatefulSet creates a statefulset in given namespace and returns the error if any
+func DeleteStatefulSet(client kubernetes.Interface, namespace string, statefulsetName string) error {
+	logrus.Infof("Deleting StatefulSet %s", statefulsetName)
+	statefulsetError := client.AppsV1().StatefulSets(namespace).Delete(statefulsetName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return statefulsetError
+}
+
+// UpdateConfigMap updates a configmap in given namespace and returns the error if any
+func UpdateConfigMap(configmapClient core_v1.ConfigMapInterface, namespace string, configmapName string, label string, data string) error {
+	logrus.Infof("Updating configmap %q.\n", configmapName)
+	var configmap *v1.ConfigMap
+	if label != "" {
+		configmap = GetConfigmapWithUpdatedLabel(namespace, configmapName, label, data)
+	} else {
+		configmap = GetConfigmap(namespace, configmapName, data)
+	}
+	_, updateErr := configmapClient.Update(configmap)
+	time.Sleep(3 * time.Second)
+	return updateErr
+}
+
+// UpdateSecret updates a secret in given namespace and returns the error if any
+func UpdateSecret(secretClient core_v1.SecretInterface, namespace string, secretName string, label string, data string) error {
+	logrus.Infof("Updating secret %q.\n", secretName)
+	var secret *v1.Secret
+	if label != "" {
+		secret = GetSecretWithUpdatedLabel(namespace, secretName, label, data)
+	} else {
+		secret = GetSecret(namespace, secretName, data)
+	}
+	_, updateErr := secretClient.Update(secret)
+	time.Sleep(3 * time.Second)
+	return updateErr
+}
+
+// DeleteConfigMap deletes a configmap in given namespace and returns the error if any
+func DeleteConfigMap(client kubernetes.Interface, namespace string, configmapName string) error {
+	logrus.Infof("Deleting configmap %q.\n", configmapName)
+	err := client.CoreV1().ConfigMaps(namespace).Delete(configmapName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return err
+}
+
+// DeleteSecret deletes a secret in given namespace and returns the error if any
+func DeleteSecret(client kubernetes.Interface, namespace string, secretName string) error {
+	logrus.Infof("Deleting secret %q.\n", secretName)
+	err := client.CoreV1().Secrets(namespace).Delete(secretName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return err
+}
+
+// RandSeq generates a random sequence
+func RandSeq(n int) string {
+	rand.Seed(time.Now().UnixNano())
+	b := make([]rune, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(len(letters))]
+	}
+	return string(b)
+}
+
+// VerifyResourceUpdate verifies whether the rolling upgrade happened or not
+func VerifyResourceUpdate(clients kube.Clients, config util.Config, envVarPostfix string, upgradeFuncs callbacks.RollingUpgradeFuncs) bool {
+	items := upgradeFuncs.ItemsFunc(clients, config.Namespace)
+	for _, i := range items {
+		containers := upgradeFuncs.ContainersFunc(i)
+		// match statefulsets with the correct annotation
+		annotationValue := util.ToObjectMeta(i).Annotations[config.Annotation]
+		searchAnnotationValue := util.ToObjectMeta(i).Annotations[options.AutoSearchAnnotation]
+		reloaderEnabledValue := util.ToObjectMeta(i).Annotations[options.ReloaderAutoAnnotation]
+		reloaderEnabled, err := strconv.ParseBool(reloaderEnabledValue)
+		matches := false
+		if err == nil && reloaderEnabled {
+			matches = true
+		} else if annotationValue != "" {
+			values := strings.Split(annotationValue, ",")
+			for _, value := range values {
+				value = strings.Trim(value, " ")
+				if value == config.ResourceName {
+					matches = true
+					break
+				}
+			}
+		} else if searchAnnotationValue == "true" {
+			if config.ResourceAnnotations[options.SearchMatchAnnotation] == "true" {
+				matches = true
+			}
+		}
+
+		if matches {
+			envName := constants.EnvVarPrefix + util.ConvertToEnvVarName(config.ResourceName) + "_" + envVarPostfix
+			updated := GetResourceSHA(containers, envName)
+			if updated == config.SHAValue {
+				return true
+			}
+		}
+	}
+	return false
+}

internal/pkg/util/config.go

@@ -0,0 +1,41 @@
+package util
+
+import (
+	"github.com/stakater/Reloader/internal/pkg/constants"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	v1 "k8s.io/api/core/v1"
+)
+
+//Config contains rolling upgrade configuration parameters
+type Config struct {
+	Namespace           string
+	ResourceName        string
+	ResourceAnnotations map[string]string
+	Annotation          string
+	SHAValue            string
+	Type                string
+}
+
+// GetConfigmapConfig provides utility config for configmap
+func GetConfigmapConfig(configmap *v1.ConfigMap) Config {
+	return Config{
+		Namespace:           configmap.Namespace,
+		ResourceName:        configmap.Name,
+		ResourceAnnotations: configmap.Annotations,
+		Annotation:          options.ConfigmapUpdateOnChangeAnnotation,
+		SHAValue:            GetSHAfromConfigmap(configmap),
+		Type:                constants.ConfigmapEnvVarPostfix,
+	}
+}
+
+// GetSecretConfig provides utility config for secret
+func GetSecretConfig(secret *v1.Secret) Config {
+	return Config{
+		Namespace:           secret.Namespace,
+		ResourceName:        secret.Name,
+		ResourceAnnotations: secret.Annotations,
+		Annotation:          options.SecretUpdateOnChangeAnnotation,
+		SHAValue:            GetSHAfromSecret(secret.Data),
+		Type:                constants.SecretEnvVarPostfix,
+	}
+}

internal/pkg/util/interface.go

@@ -0,0 +1,50 @@
+package util
+
+import (
+	"reflect"
+	"strconv"
+
+	"github.com/sirupsen/logrus"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// InterfaceSlice converts an interface to an interface array
+func InterfaceSlice(slice interface{}) []interface{} {
+	s := reflect.ValueOf(slice)
+	if s.Kind() != reflect.Slice {
+		logrus.Errorf("InterfaceSlice() given a non-slice type")
+	}
+
+	ret := make([]interface{}, s.Len())
+
+	for i := 0; i < s.Len(); i++ {
+		ret[i] = s.Index(i).Interface()
+	}
+
+	return ret
+}
+
+type ObjectMeta struct {
+	metav1.ObjectMeta
+}
+
+func ToObjectMeta(kubernetesObject interface{}) ObjectMeta {
+	objectValue := reflect.ValueOf(kubernetesObject)
+	fieldName := reflect.TypeOf((*metav1.ObjectMeta)(nil)).Elem().Name()
+	field := objectValue.FieldByName(fieldName).Interface().(metav1.ObjectMeta)
+
+	return ObjectMeta{
+		ObjectMeta: field,
+	}
+}
+
+// ParseBool returns result in bool format after parsing
+func ParseBool(value interface{}) bool {
+	if reflect.Bool == reflect.TypeOf(value).Kind() {
+		return value.(bool)
+	} else if reflect.String == reflect.TypeOf(value).Kind() {
+		result, _ := strconv.ParseBool(value.(string))
+		return result
+	}
+	return false
+}

internal/pkg/util/util.go

@@ -0,0 +1,64 @@
+package util
+
+import (
+	"bytes"
+	"encoding/base64"
+	"sort"
+	"strings"
+
+	"github.com/stakater/Reloader/internal/pkg/crypto"
+	v1 "k8s.io/api/core/v1"
+)
+
+// ConvertToEnvVarName converts the given text into a usable env var
+// removing any special chars with '_' and transforming text to upper case
+func ConvertToEnvVarName(text string) string {
+	var buffer bytes.Buffer
+	upper := strings.ToUpper(text)
+	lastCharValid := false
+	for i := 0; i < len(upper); i++ {
+		ch := upper[i]
+		if (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') {
+			buffer.WriteString(string(ch))
+			lastCharValid = true
+		} else {
+			if lastCharValid {
+				buffer.WriteString("_")
+			}
+			lastCharValid = false
+		}
+	}
+	return buffer.String()
+}
+
+func GetSHAfromConfigmap(configmap *v1.ConfigMap) string {
+	values := []string{}
+	for k, v := range configmap.Data {
+		values = append(values, k+"="+v)
+	}
+	for k, v := range configmap.BinaryData {
+		values = append(values, k+"="+base64.StdEncoding.EncodeToString(v))
+	}
+	sort.Strings(values)
+	return crypto.GenerateSHA(strings.Join(values, ";"))
+}
+
+func GetSHAfromSecret(data map[string][]byte) string {
+	values := []string{}
+	for k, v := range data {
+		values = append(values, k+"="+string(v[:]))
+	}
+	sort.Strings(values)
+	return crypto.GenerateSHA(strings.Join(values, ";"))
+}
+
+type List []string
+
+func (l *List) Contains(s string) bool {
+	for _, v := range *l {
+		if v == s {
+			return true
+		}
+	}
+	return false
+}

internal/pkg/util/util_test.go

@@ -0,0 +1,47 @@
+package util
+
+import (
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+)
+
+func TestConvertToEnvVarName(t *testing.T) {
+	data := "www.stakater.com"
+	envVar := ConvertToEnvVarName(data)
+	if envVar != "WWW_STAKATER_COM" {
+		t.Errorf("Failed to convert data into environment variable")
+	}
+}
+
+func TestGetHashFromConfigMap(t *testing.T) {
+	data := map[*v1.ConfigMap]string{
+		{
+			Data: map[string]string{"test": "test"},
+		}: "Only Data",
+		{
+			Data:       map[string]string{"test": "test"},
+			BinaryData: map[string][]byte{"bintest": []byte("test")},
+		}: "Both Data and BinaryData",
+		{
+			BinaryData: map[string][]byte{"bintest": []byte("test")},
+		}: "Only BinaryData",
+	}
+	converted := map[string]string{}
+	for cm, cmName := range data {
+		converted[cmName] = GetSHAfromConfigmap(cm)
+	}
+
+	// Test that the has for each configmap is really unique
+	for cmName, cmHash := range converted {
+		count := 0
+		for _, cmHash2 := range converted {
+			if cmHash == cmHash2 {
+				count++
+			}
+		}
+		if count > 1 {
+			t.Errorf("Found duplicate hashes for %v", cmName)
+		}
+	}
+}

okteto.yml

@@ -0,0 +1,14 @@
+name: reloader-reloader
+image: okteto/golang:1
+command: bash
+securityContext:
+  capabilities:
+    add:
+      - SYS_PTRACE
+volumes:
+  - /go/pkg/
+  - /root/.cache/go-build/
+sync:
+  - .:/app
+forward:
+  - 2345:2345

pkg/kube/client.go

@@ -3,15 +3,81 @@ package kube
 import (
 	"os"
 
+	"k8s.io/client-go/tools/clientcmd"
+
+	appsclient "github.com/openshift/client-go/apps/clientset/versioned"
+	"github.com/sirupsen/logrus"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
-	"k8s.io/client-go/tools/clientcmd"
 )
 
-// GetClient gets the client for k8s, if ~/.kube/config exists so get that config else incluster config
-func GetClient() (*kubernetes.Clientset, error) {
+// Clients struct exposes interfaces for kubernetes as well as openshift if available
+type Clients struct {
+	KubernetesClient    kubernetes.Interface
+	OpenshiftAppsClient appsclient.Interface
+}
+
+var (
+	// IsOpenshift is true if environment is Openshift, it is false if environment is Kubernetes
+	IsOpenshift = isOpenshift()
+)
+
+// GetClients returns a `Clients` object containing both openshift and kubernetes clients with an openshift identifier
+func GetClients() Clients {
+	client, err := GetKubernetesClient()
+	if err != nil {
+		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
+	}
+
+	var appsClient *appsclient.Clientset
+
+	if IsOpenshift {
+		appsClient, err = GetOpenshiftAppsClient()
+		if err != nil {
+			logrus.Warnf("Unable to create Openshift Apps client error = %v", err)
+		}
+	}
+
+	return Clients{
+		KubernetesClient:    client,
+		OpenshiftAppsClient: appsClient,
+	}
+}
+
+func isOpenshift() bool {
+	client, err := GetKubernetesClient()
+	if err != nil {
+		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
+	}
+	_, err = client.RESTClient().Get().AbsPath("/apis/project.openshift.io").Do().Raw()
+	if err == nil {
+		logrus.Info("Environment: Openshift")
+		return true
+	}
+	logrus.Info("Environment: Kubernetes")
+	return false
+}
+
+// GetOpenshiftAppsClient returns an Openshift Client that can query on Apps
+func GetOpenshiftAppsClient() (*appsclient.Clientset, error) {
+	config, err := getConfig()
+	if err != nil {
+		return nil, err
+	}
+	return appsclient.NewForConfig(config)
+}
+
+// GetKubernetesClient gets the client for k8s, if ~/.kube/config exists so get that config else incluster config
+func GetKubernetesClient() (*kubernetes.Clientset, error) {
+	config, err := getConfig()
+	if err != nil {
+		return nil, err
+	}
+	return kubernetes.NewForConfig(config)
+}
+
+func getConfig() (*rest.Config, error) {
 	var config *rest.Config
-	var err error
 	kubeconfigPath := os.Getenv("KUBECONFIG")
 	if kubeconfigPath == "" {
 		kubeconfigPath = os.Getenv("HOME") + "/.kube/config"
@@ -28,8 +94,6 @@ func GetClient() (*kubernetes.Clientset, error) {
 			return nil, err
 		}
 	}
-	if err != nil {
-		return nil, err
-	}
-	return kubernetes.NewForConfig(config)
+
+	return config, nil
 }

pkg/kube/resourcemapper.go

@@ -1,7 +1,7 @@
 package kube
 
 import (
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )