fix: NewIngressHostnameCollision is returning pointer for error parsing

Starting from Kubernetes v1.22+, admissionregistration.k8s.io/v1beta1 is
deprecated and an alignement of the docs referring to outdated APIs has
been put in place.

.github/FUNDING.yml

@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: [prometherion]
-patreon: # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/workflows/ci.yml

@@ -23,22 +23,15 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
-      - name: Cache Go modules
-        uses: actions/cache@v1
-        env:
-          cache-name: go-mod
         with:
-          path: |
-            ~/go/pkg/mod
-            /home/runner/work/capsule/capsule
-          key: ${{ runner.os }}-build-${{ env.cache-name }}
-          restore-keys: |
-            ${{ runner.os }}-build-
-            ${{ runner.os }}-
-      - run: make manifests
-      - name: Checking if manifests are disaligned
+          fetch-depth: 0
+      - uses: actions/setup-go@v2
+        with:
+          go-version: '^1.16'
+      - run: make installer
+      - name: Checking if YAML installer file is not aligned
         run: if [[ $(git diff | wc -l) -gt 0 ]]; then echo ">>> Untracked generated files have not been committed" && git --no-pager diff && exit 1; fi
-      - name: Checking if manifests generated untracked files
+      - name: Checking if YAML installer generated untracked files
         run: test -z "$(git ls-files --others --exclude-standard 2> /dev/null)"
       - name: Checking if source code is not formatted
         run: test -z "$(git diff 2> /dev/null)"

.github/workflows/docker-ci.yml

@@ -0,0 +1,89 @@
+name: docker-ci
+
+on:
+  push:
+    tags:        
+      - "v*"
+
+jobs:
+  docker-ci:
+    runs-on: ubuntu-20.04
+    steps:
+
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Generate build-args
+        id: build-args
+        run: |
+          # Declare vars for internal use
+          VERSION=$(git describe --abbrev=0 --tags)
+          GIT_HEAD_COMMIT=$(git rev-parse --short HEAD)
+          GIT_TAG_COMMIT=$(git rev-parse --short $VERSION)
+          GIT_MODIFIED_1=$(git diff $GIT_HEAD_COMMIT $GIT_TAG_COMMIT --quiet && echo "" || echo ".dev")
+          GIT_MODIFIED_2=$(git diff --quiet && echo "" || echo ".dirty")
+          # Export to GH_ENV
+          echo "GIT_LAST_TAG=$VERSION" >> $GITHUB_ENV
+          echo "GIT_HEAD_COMMIT=$GIT_HEAD_COMMIT" >> $GITHUB_ENV
+          echo "GIT_TAG_COMMIT=$GIT_TAG_COMMIT" >> $GITHUB_ENV
+          echo "GIT_MODIFIED=$(echo "$GIT_MODIFIED_1""$GIT_MODIFIED_2")" >> $GITHUB_ENV
+          echo "GIT_REPO=$(git config --get remote.origin.url)" >> $GITHUB_ENV
+          echo "BUILD_DATE=$(git log -1 --format="%at" | xargs -I{} date -d @{} +%Y-%m-%dT%H:%M:%S)" >> $GITHUB_ENV
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+             quay.io/${{ github.repository }}
+          tags: |
+            type=semver,pattern={{raw}}
+          flavor: |
+            latest=false
+
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: arm64,arm
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          install: true
+
+      - name: Inspect builder
+        run: |
+          echo "Name:      ${{ steps.buildx.outputs.name }}"
+          echo "Endpoint:  ${{ steps.buildx.outputs.endpoint }}"
+          echo "Status:    ${{ steps.buildx.outputs.status }}"
+          echo "Flags:     ${{ steps.buildx.outputs.flags }}"
+          echo "Platforms: ${{ steps.buildx.outputs.platforms }}"
+
+      - name: Login to quay.io Container Registry
+        uses: docker/login-action@v1 
+        with:
+          registry: quay.io
+          username: ${{ github.repository_owner }}+github
+          password: ${{ secrets.BOT_QUAY_IO }}
+
+      - name: Build and push
+        id: build-release
+        uses: docker/build-push-action@v2
+        with:
+          file: Dockerfile
+          context: .
+          platforms: linux/amd64,linux/arm64,linux/arm
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          build-args: |
+            GIT_HEAD_COMMIT=${{ env.GIT_HEAD_COMMIT }}
+            GIT_TAG_COMMIT=${{ env.GIT_TAG_COMMIT }}
+            GIT_REPO=${{ env.GIT_REPO }}
+            GIT_LAST_TAG=${{ env.GIT_LAST_TAG }}
+            GIT_MODIFIED=${{ env.GIT_MODIFIED }}
+            BUILD_DATE=${{ env.BUILD_DATE }}
+
+      - name: Image digest
+        run: echo ${{ steps.build-release.outputs.digest }}

.github/workflows/e2e.yml

@@ -11,25 +11,15 @@ jobs:
     name: Kubernetes
     strategy:
       matrix:
-        k8s-version: ['v1.16.15', 'v1.17.11', 'v1.18.8', 'v1.19.4', 'v1.20.0']
+        k8s-version: ['v1.16.15', 'v1.17.11', 'v1.18.8', 'v1.19.4', 'v1.20.7', 'v1.21.2', 'v1.22.0']
     runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - name: Cache Go modules and Docker images
-        uses: actions/cache@v1
-        env:
-          cache-name: gomod-docker
+      - uses: actions/setup-go@v2
         with:
-          path: |
-            ~/go/pkg/mod
-            /var/lib/docker
-            /home/runner/work/capsule/capsule
-          key: ${{ matrix.k8s-version }}-build-${{ env.cache-name }}
-          restore-keys: |
-            ${{ matrix.k8s-version }}-build-
-            ${{ matrix.k8s-version }}-
+          go-version: '^1.16'
       - run: make manifests
       - name: Checking if manifests are disaligned
         run: test -z "$(git diff 2> /dev/null)"
@@ -39,10 +29,11 @@ jobs:
         run: go get github.com/onsi/ginkgo/ginkgo
       - uses: actions/setup-go@v2
         with:
-          go-version: '^1.13.8'
+          go-version: '^1.16'
       - uses: engineerd/setup-kind@v0.5.0
         with:
           skipClusterCreation: true
+          version: v0.11.1
       - uses: azure/setup-helm@v1
         with:
           version: 3.3.4

Dockerfile

@@ -1,6 +1,7 @@
 # Build the manager binary
 FROM golang:1.16 as builder
 
+ARG TARGETARCH
 ARG GIT_HEAD_COMMIT
 ARG GIT_TAG_COMMIT
 ARG GIT_LAST_TAG
@@ -24,7 +25,7 @@ COPY controllers/ controllers/
 COPY pkg/ pkg/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build \
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH GO111MODULE=on go build \
         -gcflags "-N -l" \
         -ldflags "-X main.GitRepo=$GIT_REPO -X main.GitTag=$GIT_LAST_TAG -X main.GitCommit=$GIT_HEAD_COMMIT -X main.GitDirty=$GIT_MODIFIED -X main.BuildTime=$BUILD_DATE" \
         -o manager

Makefile

@@ -15,7 +15,7 @@ BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL)
 # Image URL to use all building/pushing image targets
 IMG ?= quay.io/clastix/capsule:$(VERSION)
 # Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
-CRD_OPTIONS ?= "crd:trivialVersions=true,preserveUnknownFields=false"
+CRD_OPTIONS ?= "crd:preserveUnknownFields=false"
 
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
@@ -47,22 +47,26 @@ manager: generate fmt vet
 run: generate manifests
 	go run ./main.go
 
+# Creates the single file to install Capsule without any external dependency
+installer: manifests kustomize
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	$(KUSTOMIZE) build config/default > config/install.yaml
+
 # Install CRDs into a cluster
-install: manifests kustomize
+install: installer
 	$(KUSTOMIZE) build config/crd | kubectl apply -f -
 
 # Uninstall CRDs from a cluster
-uninstall: manifests kustomize
+uninstall: installer
 	$(KUSTOMIZE) build config/crd | kubectl delete -f -
 
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
-deploy: manifests kustomize
-	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
-	$(KUSTOMIZE) build config/default | kubectl apply -f -
+deploy: installer
+	kubectl apply -f config/install.yaml
 
 # Remove controller in the configured Kubernetes cluster in ~/.kube/config
-remove: manifests kustomize
-	$(KUSTOMIZE) build config/default | kubectl delete -f -
+remove: installer
+	kubectl delete -f config/install.yaml
 	kubectl delete clusterroles.rbac.authorization.k8s.io capsule-namespace-deleter capsule-namespace-provisioner --ignore-not-found
 	kubectl delete clusterrolebindings.rbac.authorization.k8s.io capsule-namespace-deleter capsule-namespace-provisioner --ignore-not-found
 
@@ -87,37 +91,27 @@ docker-build: test
 docker-push:
 	docker push ${IMG}
 
-# find or download controller-gen
-# download controller-gen if necessary
-controller-gen:
-ifeq (, $(shell which controller-gen))
-	@{ \
-	set -e ;\
-	CONTROLLER_GEN_TMP_DIR=$$(mktemp -d) ;\
-	cd $$CONTROLLER_GEN_TMP_DIR ;\
-	go mod init tmp ;\
-	go get sigs.k8s.io/controller-tools/cmd/controller-gen@v0.5.0 ;\
-	rm -rf $$CONTROLLER_GEN_TMP_DIR ;\
-	}
-CONTROLLER_GEN=$(GOBIN)/controller-gen
-else
-CONTROLLER_GEN=$(shell which controller-gen)
-endif
+CONTROLLER_GEN = $(shell pwd)/bin/controller-gen
+controller-gen: ## Download controller-gen locally if necessary.
+	$(call go-get-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.5.0)
 
-kustomize:
-ifeq (, $(shell which kustomize))
-	@{ \
-	set -e ;\
-	KUSTOMIZE_GEN_TMP_DIR=$$(mktemp -d) ;\
-	cd $$KUSTOMIZE_GEN_TMP_DIR ;\
-	go mod init tmp ;\
-	go get sigs.k8s.io/kustomize/kustomize/v3@v3.5.4 ;\
-	rm -rf $$KUSTOMIZE_GEN_TMP_DIR ;\
-	}
-KUSTOMIZE=$(GOBIN)/kustomize
-else
-KUSTOMIZE=$(shell which kustomize)
-endif
+KUSTOMIZE = $(shell pwd)/bin/kustomize
+kustomize: ## Download kustomize locally if necessary.
+	$(call go-get-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v3@v3.8.7)
+
+# go-get-tool will 'go get' any package $2 and install it to $1.
+PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
+define go-get-tool
+@[ -f $(1) ] || { \
+set -e ;\
+TMP_DIR=$$(mktemp -d) ;\
+cd $$TMP_DIR ;\
+go mod init tmp ;\
+echo "Downloading $(2)" ;\
+GOBIN=$(PROJECT_DIR)/bin go get $(2) ;\
+rm -rf $$TMP_DIR ;\
+}
+endef
 
 # Generate bundle manifests and metadata, then validate generated files.
 bundle: manifests

PROJECT

@@ -1,25 +1,39 @@
-domain: github.com/clastix/capsule
-layout: go.kubebuilder.io/v3
+domain: clastix.io
+layout:
+- go.kubebuilder.io/v3
+plugins:
+  manifests.sdk.operatorframework.io/v2: {}
+  scorecard.sdk.operatorframework.io/v2: {}
 projectName: capsule
 repo: github.com/clastix/capsule
 resources:
 - api:
     crdVersion: v1
-  controller: false
-  domain: github.com/clastix/capsule
-  group: capsule.clastix.io
+    namespaced: false
+  controller: true
+  domain: clastix.io
+  group: capsule
+  kind: Tenant
+  path: github.com/clastix/capsule/api/v1alpha1
+  version: v1alpha1
+  webhooks:
+    conversion: true
+    webhookVersion: v1
+- api:
+    crdVersion: v1
+    namespaced: false
+  controller: true
+  domain: clastix.io
+  group: capsule
   kind: CapsuleConfiguration
   path: github.com/clastix/capsule/api/v1alpha1
   version: v1alpha1
 - api:
     crdVersion: v1
-  controller: true
-  domain: github.com/clastix/capsule
-  group: capsule.clastix.io
+    namespaced: false
+  domain: clastix.io
+  group: capsule
   kind: Tenant
-  path: github.com/clastix/capsule/api/v1alpha1
-  version: v1alpha1
+  path: github.com/clastix/capsule/api/v1beta1
+  version: v1beta1
 version: "3"
-plugins:
-  manifests.sdk.operatorframework.io/v2: {}
-  scorecard.sdk.operatorframework.io/v2: {}

README.md

@@ -61,17 +61,28 @@ Make sure you have access to a Kubernetes cluster as administrator.
 There are two ways to install Capsule:
 
 * Use the Helm Chart available [here](./charts/capsule/README.md)
-* Use [`kustomize`](https://github.com/kubernetes-sigs/kustomize)
+* Use the [single YAML file installer](./config/install.yaml)
 
-## Install with kustomize
-Ensure you have `kubectl` and `kustomize` installed in your `PATH`. 
+## Install with the single YAML file installer
+
+Ensure you have `kubectl` installed in your `PATH`. 
 
 Clone this repository and move to the repo folder:
 
 ```
-$ git clone https://github.com/clastix/capsule
-$ cd capsule
-$ make deploy
+$ kubectl apply -f https://raw.githubusercontent.com/clastix/capsule/master/config/install.yaml
+namespace/capsule-system created
+customresourcedefinition.apiextensions.k8s.io/capsuleconfigurations.capsule.clastix.io created
+customresourcedefinition.apiextensions.k8s.io/tenants.capsule.clastix.io created
+clusterrolebinding.rbac.authorization.k8s.io/capsule-manager-rolebinding created
+secret/capsule-ca created
+secret/capsule-tls created
+service/capsule-controller-manager-metrics-service created
+service/capsule-webhook-service created
+deployment.apps/capsule-controller-manager created
+capsuleconfiguration.capsule.clastix.io/capsule-default created
+mutatingwebhookconfiguration.admissionregistration.k8s.io/capsule-mutating-webhook-configuration created
+validatingwebhookconfiguration.admissionregistration.k8s.io/capsule-validating-webhook-configuration created
 ```
 
 It will install the Capsule controller in a dedicated namespace `capsule-system`.

api/v1alpha1/additional_metadata.go

@@ -0,0 +1,9 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+type AdditionalMetadataSpec struct {
+	AdditionalLabels      map[string]string `json:"additionalLabels,omitempty"`
+	AdditionalAnnotations map[string]string `json:"additionalAnnotations,omitempty"`
+}

api/v1alpha1/additional_role_bindings.go

@@ -0,0 +1,12 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+import rbacv1 "k8s.io/api/rbac/v1"
+
+type AdditionalRoleBindingsSpec struct {
+	ClusterRoleName string `json:"clusterRoleName"`
+	// kubebuilder:validation:Minimum=1
+	Subjects []rbacv1.Subject `json:"subjects"`
+}

api/v1alpha1/allowed_list.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 

api/v1alpha1/allowed_list_test.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 

api/v1alpha1/capsuleconfiguration_types.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 
@@ -21,7 +8,6 @@ import (
 )
 
 // CapsuleConfigurationSpec defines the Capsule configuration
-// nolint:maligned
 type CapsuleConfigurationSpec struct {
 	// Names of the groups for Capsule users.
 	// +kubebuilder:default={capsule.clastix.io}
@@ -32,15 +18,6 @@ type CapsuleConfigurationSpec struct {
 	ForceTenantPrefix bool `json:"forceTenantPrefix,omitempty"`
 	// Disallow creation of namespaces, whose name matches this regexp
 	ProtectedNamespaceRegexpString string `json:"protectedNamespaceRegex,omitempty"`
-	// When defining the exact match for allowed Ingress hostnames at Tenant level, a collision is not allowed.
-	// Toggling this, Capsule will not check if a hostname collision is in place, allowing the creation of
-	// two or more Tenant resources although sharing the same allowed hostname(s).
-	//
-	// The JSON path of the resource is: /spec/ingressHostnames/allowed
-	AllowTenantIngressHostnamesCollision bool `json:"allowTenantIngressHostnamesCollision,omitempty"`
-	// Allow the collision of Ingress resource hostnames across all the Tenants.
-	// +kubebuilder:default=true
-	AllowIngressHostnameCollision bool `json:"allowIngressHostnameCollision,omitempty"`
 }
 
 // +kubebuilder:object:root=true

api/v1alpha1/conversion_hub.go

@@ -0,0 +1,542 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+
+	"github.com/pkg/errors"
+	"k8s.io/utils/pointer"
+	"sigs.k8s.io/controller-runtime/pkg/conversion"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+const (
+	resourceQuotaScopeAnnotation = "capsule.clastix.io/resource-quota-scope"
+
+	podAllowedImagePullPolicyAnnotation = "capsule.clastix.io/allowed-image-pull-policy"
+
+	podPriorityAllowedAnnotation      = "priorityclass.capsule.clastix.io/allowed"
+	podPriorityAllowedRegexAnnotation = "priorityclass.capsule.clastix.io/allowed-regex"
+
+	enableNodePortsAnnotation    = "capsule.clastix.io/enable-node-ports"
+	enableExternalNameAnnotation = "capsule.clastix.io/enable-external-name"
+
+	ownerGroupsAnnotation         = "owners.capsule.clastix.io/group"
+	ownerUsersAnnotation          = "owners.capsule.clastix.io/user"
+	ownerServiceAccountAnnotation = "owners.capsule.clastix.io/serviceaccount"
+
+	enableNodeListingAnnotation           = "capsule.clastix.io/enable-node-listing"
+	enableNodeUpdateAnnotation            = "capsule.clastix.io/enable-node-update"
+	enableNodeDeletionAnnotation          = "capsule.clastix.io/enable-node-deletion"
+	enableStorageClassListingAnnotation   = "capsule.clastix.io/enable-storageclass-listing"
+	enableStorageClassUpdateAnnotation    = "capsule.clastix.io/enable-storageclass-update"
+	enableStorageClassDeletionAnnotation  = "capsule.clastix.io/enable-storageclass-deletion"
+	enableIngressClassListingAnnotation   = "capsule.clastix.io/enable-ingressclass-listing"
+	enableIngressClassUpdateAnnotation    = "capsule.clastix.io/enable-ingressclass-update"
+	enableIngressClassDeletionAnnotation  = "capsule.clastix.io/enable-ingressclass-deletion"
+	enablePriorityClassListingAnnotation  = "capsule.clastix.io/enable-priorityclass-listing"
+	enablePriorityClassUpdateAnnotation   = "capsule.clastix.io/enable-priorityclass-update"
+	enablePriorityClassDeletionAnnotation = "capsule.clastix.io/enable-priorityclass-deletion"
+
+	ingressHostnameCollisionScope = "ingress.capsule.clastix.io/hostname-collision-scope"
+)
+
+func (t *Tenant) convertV1Alpha1OwnerToV1Beta1() capsulev1beta1.OwnerListSpec {
+	var serviceKindToAnnotationMap = map[capsulev1beta1.ProxyServiceKind][]string{
+		capsulev1beta1.NodesProxy:           {enableNodeListingAnnotation, enableNodeUpdateAnnotation, enableNodeDeletionAnnotation},
+		capsulev1beta1.StorageClassesProxy:  {enableStorageClassListingAnnotation, enableStorageClassUpdateAnnotation, enableStorageClassDeletionAnnotation},
+		capsulev1beta1.IngressClassesProxy:  {enableIngressClassListingAnnotation, enableIngressClassUpdateAnnotation, enableIngressClassDeletionAnnotation},
+		capsulev1beta1.PriorityClassesProxy: {enablePriorityClassListingAnnotation, enablePriorityClassUpdateAnnotation, enablePriorityClassDeletionAnnotation},
+	}
+	var annotationToOperationMap = map[string]capsulev1beta1.ProxyOperation{
+		enableNodeListingAnnotation:           capsulev1beta1.ListOperation,
+		enableNodeUpdateAnnotation:            capsulev1beta1.UpdateOperation,
+		enableNodeDeletionAnnotation:          capsulev1beta1.DeleteOperation,
+		enableStorageClassListingAnnotation:   capsulev1beta1.ListOperation,
+		enableStorageClassUpdateAnnotation:    capsulev1beta1.UpdateOperation,
+		enableStorageClassDeletionAnnotation:  capsulev1beta1.DeleteOperation,
+		enableIngressClassListingAnnotation:   capsulev1beta1.ListOperation,
+		enableIngressClassUpdateAnnotation:    capsulev1beta1.UpdateOperation,
+		enableIngressClassDeletionAnnotation:  capsulev1beta1.DeleteOperation,
+		enablePriorityClassListingAnnotation:  capsulev1beta1.ListOperation,
+		enablePriorityClassUpdateAnnotation:   capsulev1beta1.UpdateOperation,
+		enablePriorityClassDeletionAnnotation: capsulev1beta1.DeleteOperation,
+	}
+	var annotationToOwnerKindMap = map[string]capsulev1beta1.OwnerKind{
+		ownerUsersAnnotation:          capsulev1beta1.UserOwner,
+		ownerGroupsAnnotation:         capsulev1beta1.GroupOwner,
+		ownerServiceAccountAnnotation: capsulev1beta1.ServiceAccountOwner,
+	}
+	annotations := t.GetAnnotations()
+
+	var operations = make(map[string]map[capsulev1beta1.ProxyServiceKind][]capsulev1beta1.ProxyOperation)
+
+	for serviceKind, operationAnnotations := range serviceKindToAnnotationMap {
+		for _, operationAnnotation := range operationAnnotations {
+			val, ok := annotations[operationAnnotation]
+			if ok {
+				for _, owner := range strings.Split(val, ",") {
+					if _, exists := operations[owner]; !exists {
+						operations[owner] = make(map[capsulev1beta1.ProxyServiceKind][]capsulev1beta1.ProxyOperation)
+					}
+					operations[owner][serviceKind] = append(operations[owner][serviceKind], annotationToOperationMap[operationAnnotation])
+				}
+			}
+		}
+	}
+
+	var owners capsulev1beta1.OwnerListSpec
+
+	var getProxySettingsForOwner = func(ownerName string) (settings []capsulev1beta1.ProxySettings) {
+		ownerOperations, ok := operations[ownerName]
+		if ok {
+			for k, v := range ownerOperations {
+				settings = append(settings, capsulev1beta1.ProxySettings{
+					Kind:       k,
+					Operations: v,
+				})
+			}
+		}
+		return
+	}
+
+	owners = append(owners, capsulev1beta1.OwnerSpec{
+		Kind:            capsulev1beta1.OwnerKind(t.Spec.Owner.Kind),
+		Name:            t.Spec.Owner.Name,
+		ProxyOperations: getProxySettingsForOwner(t.Spec.Owner.Name),
+	})
+
+	for ownerAnnotation, ownerKind := range annotationToOwnerKindMap {
+		val, ok := annotations[ownerAnnotation]
+		if ok {
+			for _, owner := range strings.Split(val, ",") {
+				owners = append(owners, capsulev1beta1.OwnerSpec{
+					Kind:            ownerKind,
+					Name:            owner,
+					ProxyOperations: getProxySettingsForOwner(owner),
+				})
+			}
+		}
+	}
+
+	return owners
+}
+
+func (t *Tenant) ConvertTo(dstRaw conversion.Hub) error {
+	dst := dstRaw.(*capsulev1beta1.Tenant)
+	annotations := t.GetAnnotations()
+
+	// ObjectMeta
+	dst.ObjectMeta = t.ObjectMeta
+
+	// Spec
+	if t.Spec.NamespaceQuota != nil {
+		if dst.Spec.NamespaceOptions == nil {
+			dst.Spec.NamespaceOptions = &capsulev1beta1.NamespaceOptions{}
+		}
+		dst.Spec.NamespaceOptions.Quota = t.Spec.NamespaceQuota
+	}
+
+	dst.Spec.NodeSelector = t.Spec.NodeSelector
+
+	dst.Spec.Owners = t.convertV1Alpha1OwnerToV1Beta1()
+
+	if t.Spec.NamespacesMetadata != nil {
+		if dst.Spec.NamespaceOptions == nil {
+			dst.Spec.NamespaceOptions = &capsulev1beta1.NamespaceOptions{}
+		}
+		dst.Spec.NamespaceOptions.AdditionalMetadata = &capsulev1beta1.AdditionalMetadataSpec{
+			Labels:      t.Spec.NamespacesMetadata.AdditionalLabels,
+			Annotations: t.Spec.NamespacesMetadata.AdditionalAnnotations,
+		}
+	}
+	if t.Spec.ServicesMetadata != nil {
+		if dst.Spec.ServiceOptions == nil {
+			dst.Spec.ServiceOptions = &capsulev1beta1.ServiceOptions{
+				AdditionalMetadata: &capsulev1beta1.AdditionalMetadataSpec{
+					Labels:      t.Spec.ServicesMetadata.AdditionalLabels,
+					Annotations: t.Spec.ServicesMetadata.AdditionalAnnotations,
+				},
+			}
+		}
+	}
+	if t.Spec.StorageClasses != nil {
+		dst.Spec.StorageClasses = &capsulev1beta1.AllowedListSpec{
+			Exact: t.Spec.StorageClasses.Exact,
+			Regex: t.Spec.StorageClasses.Regex,
+		}
+	}
+	if v, ok := t.Annotations[ingressHostnameCollisionScope]; ok {
+		switch v {
+		case string(capsulev1beta1.HostnameCollisionScopeCluster), string(capsulev1beta1.HostnameCollisionScopeTenant), string(capsulev1beta1.HostnameCollisionScopeNamespace):
+			dst.Spec.IngressOptions.HostnameCollisionScope = capsulev1beta1.HostnameCollisionScope(v)
+		default:
+			dst.Spec.IngressOptions.HostnameCollisionScope = capsulev1beta1.HostnameCollisionScopeDisabled
+		}
+	}
+	if t.Spec.IngressClasses != nil {
+		dst.Spec.IngressOptions.AllowedClasses = &capsulev1beta1.AllowedListSpec{
+			Exact: t.Spec.IngressClasses.Exact,
+			Regex: t.Spec.IngressClasses.Regex,
+		}
+	}
+	if t.Spec.IngressHostnames != nil {
+		dst.Spec.IngressOptions.AllowedHostnames = &capsulev1beta1.AllowedListSpec{
+			Exact: t.Spec.IngressHostnames.Exact,
+			Regex: t.Spec.IngressHostnames.Regex,
+		}
+	}
+	if t.Spec.ContainerRegistries != nil {
+		dst.Spec.ContainerRegistries = &capsulev1beta1.AllowedListSpec{
+			Exact: t.Spec.ContainerRegistries.Exact,
+			Regex: t.Spec.ContainerRegistries.Regex,
+		}
+	}
+	if len(t.Spec.NetworkPolicies) > 0 {
+		dst.Spec.NetworkPolicies = &capsulev1beta1.NetworkPolicySpec{
+			Items: t.Spec.NetworkPolicies,
+		}
+	}
+	if len(t.Spec.LimitRanges) > 0 {
+		dst.Spec.LimitRanges = &capsulev1beta1.LimitRangesSpec{
+			Items: t.Spec.LimitRanges,
+		}
+	}
+	if len(t.Spec.ResourceQuota) > 0 {
+		dst.Spec.ResourceQuota = &capsulev1beta1.ResourceQuotaSpec{
+			Scope: func() capsulev1beta1.ResourceQuotaScope {
+				if v, ok := t.GetAnnotations()[resourceQuotaScopeAnnotation]; ok {
+					switch v {
+					case string(capsulev1beta1.ResourceQuotaScopeNamespace):
+						return capsulev1beta1.ResourceQuotaScopeNamespace
+					case string(capsulev1beta1.ResourceQuotaScopeTenant):
+						return capsulev1beta1.ResourceQuotaScopeTenant
+					}
+				}
+				return capsulev1beta1.ResourceQuotaScopeTenant
+			}(),
+			Items: t.Spec.ResourceQuota,
+		}
+	}
+	if len(t.Spec.AdditionalRoleBindings) > 0 {
+		for _, rb := range t.Spec.AdditionalRoleBindings {
+			dst.Spec.AdditionalRoleBindings = append(dst.Spec.AdditionalRoleBindings, capsulev1beta1.AdditionalRoleBindingsSpec{
+				ClusterRoleName: rb.ClusterRoleName,
+				Subjects:        rb.Subjects,
+			})
+		}
+	}
+	if t.Spec.ExternalServiceIPs != nil {
+		if dst.Spec.ServiceOptions == nil {
+			dst.Spec.ServiceOptions = &capsulev1beta1.ServiceOptions{}
+		}
+		dst.Spec.ServiceOptions.ExternalServiceIPs = &capsulev1beta1.ExternalServiceIPsSpec{
+			Allowed: make([]capsulev1beta1.AllowedIP, len(t.Spec.ExternalServiceIPs.Allowed)),
+		}
+
+		for i, IP := range t.Spec.ExternalServiceIPs.Allowed {
+			dst.Spec.ServiceOptions.ExternalServiceIPs.Allowed[i] = capsulev1beta1.AllowedIP(IP)
+		}
+	}
+
+	pullPolicies, ok := annotations[podAllowedImagePullPolicyAnnotation]
+	if ok {
+		for _, policy := range strings.Split(pullPolicies, ",") {
+			dst.Spec.ImagePullPolicies = append(dst.Spec.ImagePullPolicies, capsulev1beta1.ImagePullPolicySpec(policy))
+		}
+	}
+
+	priorityClasses := capsulev1beta1.AllowedListSpec{}
+
+	priorityClassAllowed, ok := annotations[podPriorityAllowedAnnotation]
+	if ok {
+		priorityClasses.Exact = strings.Split(priorityClassAllowed, ",")
+	}
+	priorityClassesRegexp, ok := annotations[podPriorityAllowedRegexAnnotation]
+	if ok {
+		priorityClasses.Regex = priorityClassesRegexp
+	}
+
+	if !reflect.ValueOf(priorityClasses).IsZero() {
+		dst.Spec.PriorityClasses = &priorityClasses
+	}
+
+	enableNodePorts, ok := annotations[enableNodePortsAnnotation]
+	if ok {
+		val, err := strconv.ParseBool(enableNodePorts)
+		if err != nil {
+			return errors.Wrap(err, fmt.Sprintf("unable to parse %s annotation on tenant %s", enableNodePortsAnnotation, t.GetName()))
+		}
+		if dst.Spec.ServiceOptions == nil {
+			dst.Spec.ServiceOptions = &capsulev1beta1.ServiceOptions{}
+		}
+		if dst.Spec.ServiceOptions.AllowedServices == nil {
+			dst.Spec.ServiceOptions.AllowedServices = &capsulev1beta1.AllowedServices{}
+		}
+		dst.Spec.ServiceOptions.AllowedServices.NodePort = pointer.BoolPtr(val)
+	}
+
+	enableExternalName, ok := annotations[enableExternalNameAnnotation]
+	if ok {
+		val, err := strconv.ParseBool(enableExternalName)
+		if err != nil {
+			return errors.Wrap(err, fmt.Sprintf("unable to parse %s annotation on tenant %s", enableExternalNameAnnotation, t.GetName()))
+		}
+		if dst.Spec.ServiceOptions == nil {
+			dst.Spec.ServiceOptions = &capsulev1beta1.ServiceOptions{}
+		}
+		if dst.Spec.ServiceOptions.AllowedServices == nil {
+			dst.Spec.ServiceOptions.AllowedServices = &capsulev1beta1.AllowedServices{}
+		}
+		dst.Spec.ServiceOptions.AllowedServices.ExternalName = pointer.BoolPtr(val)
+	}
+
+	// Status
+	dst.Status = capsulev1beta1.TenantStatus{
+		Size:       t.Status.Size,
+		Namespaces: t.Status.Namespaces,
+	}
+
+	// Remove unneeded annotations
+	delete(dst.ObjectMeta.Annotations, podAllowedImagePullPolicyAnnotation)
+	delete(dst.ObjectMeta.Annotations, podPriorityAllowedAnnotation)
+	delete(dst.ObjectMeta.Annotations, podPriorityAllowedRegexAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableNodePortsAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableExternalNameAnnotation)
+	delete(dst.ObjectMeta.Annotations, ownerGroupsAnnotation)
+	delete(dst.ObjectMeta.Annotations, ownerUsersAnnotation)
+	delete(dst.ObjectMeta.Annotations, ownerServiceAccountAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableNodeListingAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableNodeUpdateAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableNodeDeletionAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableStorageClassListingAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableStorageClassUpdateAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableStorageClassDeletionAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableIngressClassListingAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableIngressClassUpdateAnnotation)
+	delete(dst.ObjectMeta.Annotations, enableIngressClassDeletionAnnotation)
+	delete(dst.ObjectMeta.Annotations, enablePriorityClassListingAnnotation)
+	delete(dst.ObjectMeta.Annotations, enablePriorityClassUpdateAnnotation)
+	delete(dst.ObjectMeta.Annotations, enablePriorityClassDeletionAnnotation)
+	delete(dst.ObjectMeta.Annotations, resourceQuotaScopeAnnotation)
+	delete(dst.ObjectMeta.Annotations, ingressHostnameCollisionScope)
+
+	return nil
+}
+
+func (t *Tenant) convertV1Beta1OwnerToV1Alpha1(src *capsulev1beta1.Tenant) {
+	var ownersAnnotations = map[string][]string{
+		ownerGroupsAnnotation:         nil,
+		ownerUsersAnnotation:          nil,
+		ownerServiceAccountAnnotation: nil,
+	}
+
+	var proxyAnnotations = map[string][]string{
+		enableNodeListingAnnotation:          nil,
+		enableNodeUpdateAnnotation:           nil,
+		enableNodeDeletionAnnotation:         nil,
+		enableStorageClassListingAnnotation:  nil,
+		enableStorageClassUpdateAnnotation:   nil,
+		enableStorageClassDeletionAnnotation: nil,
+		enableIngressClassListingAnnotation:  nil,
+		enableIngressClassUpdateAnnotation:   nil,
+		enableIngressClassDeletionAnnotation: nil,
+	}
+
+	for i, owner := range src.Spec.Owners {
+		if i == 0 {
+			t.Spec.Owner = OwnerSpec{
+				Name: owner.Name,
+				Kind: Kind(owner.Kind),
+			}
+		} else {
+			switch owner.Kind {
+			case capsulev1beta1.UserOwner:
+				ownersAnnotations[ownerUsersAnnotation] = append(ownersAnnotations[ownerUsersAnnotation], owner.Name)
+			case capsulev1beta1.GroupOwner:
+				ownersAnnotations[ownerGroupsAnnotation] = append(ownersAnnotations[ownerGroupsAnnotation], owner.Name)
+			case capsulev1beta1.ServiceAccountOwner:
+				ownersAnnotations[ownerServiceAccountAnnotation] = append(ownersAnnotations[ownerServiceAccountAnnotation], owner.Name)
+			}
+		}
+		for _, setting := range owner.ProxyOperations {
+			switch setting.Kind {
+			case capsulev1beta1.NodesProxy:
+				for _, operation := range setting.Operations {
+					switch operation {
+					case capsulev1beta1.ListOperation:
+						proxyAnnotations[enableNodeListingAnnotation] = append(proxyAnnotations[enableNodeListingAnnotation], owner.Name)
+					case capsulev1beta1.UpdateOperation:
+						proxyAnnotations[enableNodeUpdateAnnotation] = append(proxyAnnotations[enableNodeUpdateAnnotation], owner.Name)
+					case capsulev1beta1.DeleteOperation:
+						proxyAnnotations[enableNodeDeletionAnnotation] = append(proxyAnnotations[enableNodeDeletionAnnotation], owner.Name)
+					}
+				}
+			case capsulev1beta1.PriorityClassesProxy:
+				for _, operation := range setting.Operations {
+					switch operation {
+					case capsulev1beta1.ListOperation:
+						proxyAnnotations[enablePriorityClassListingAnnotation] = append(proxyAnnotations[enablePriorityClassListingAnnotation], owner.Name)
+					case capsulev1beta1.UpdateOperation:
+						proxyAnnotations[enablePriorityClassUpdateAnnotation] = append(proxyAnnotations[enablePriorityClassUpdateAnnotation], owner.Name)
+					case capsulev1beta1.DeleteOperation:
+						proxyAnnotations[enablePriorityClassDeletionAnnotation] = append(proxyAnnotations[enablePriorityClassDeletionAnnotation], owner.Name)
+					}
+				}
+			case capsulev1beta1.StorageClassesProxy:
+				for _, operation := range setting.Operations {
+					switch operation {
+					case capsulev1beta1.ListOperation:
+						proxyAnnotations[enableStorageClassListingAnnotation] = append(proxyAnnotations[enableStorageClassListingAnnotation], owner.Name)
+					case capsulev1beta1.UpdateOperation:
+						proxyAnnotations[enableStorageClassUpdateAnnotation] = append(proxyAnnotations[enableStorageClassUpdateAnnotation], owner.Name)
+					case capsulev1beta1.DeleteOperation:
+						proxyAnnotations[enableStorageClassDeletionAnnotation] = append(proxyAnnotations[enableStorageClassDeletionAnnotation], owner.Name)
+					}
+				}
+			case capsulev1beta1.IngressClassesProxy:
+				for _, operation := range setting.Operations {
+					switch operation {
+					case capsulev1beta1.ListOperation:
+						proxyAnnotations[enableIngressClassListingAnnotation] = append(proxyAnnotations[enableIngressClassListingAnnotation], owner.Name)
+					case capsulev1beta1.UpdateOperation:
+						proxyAnnotations[enableIngressClassUpdateAnnotation] = append(proxyAnnotations[enableIngressClassUpdateAnnotation], owner.Name)
+					case capsulev1beta1.DeleteOperation:
+						proxyAnnotations[enableIngressClassDeletionAnnotation] = append(proxyAnnotations[enableIngressClassDeletionAnnotation], owner.Name)
+					}
+				}
+			}
+		}
+	}
+
+	for k, v := range ownersAnnotations {
+		if len(v) > 0 {
+			t.Annotations[k] = strings.Join(v, ",")
+		}
+	}
+	for k, v := range proxyAnnotations {
+		if len(v) > 0 {
+			t.Annotations[k] = strings.Join(v, ",")
+		}
+	}
+}
+
+func (t *Tenant) ConvertFrom(srcRaw conversion.Hub) error {
+	src := srcRaw.(*capsulev1beta1.Tenant)
+
+	// ObjectMeta
+	t.ObjectMeta = src.ObjectMeta
+
+	// Spec
+	if src.Spec.NamespaceOptions != nil && src.Spec.NamespaceOptions.Quota != nil {
+		t.Spec.NamespaceQuota = src.Spec.NamespaceOptions.Quota
+	}
+
+	t.Spec.NodeSelector = src.Spec.NodeSelector
+
+	if t.Annotations == nil {
+		t.Annotations = make(map[string]string)
+	}
+
+	t.convertV1Beta1OwnerToV1Alpha1(src)
+
+	if src.Spec.NamespaceOptions != nil && src.Spec.NamespaceOptions.AdditionalMetadata != nil {
+		t.Spec.NamespacesMetadata = &AdditionalMetadataSpec{
+			AdditionalLabels:      src.Spec.NamespaceOptions.AdditionalMetadata.Labels,
+			AdditionalAnnotations: src.Spec.NamespaceOptions.AdditionalMetadata.Annotations,
+		}
+	}
+	if src.Spec.ServiceOptions != nil && src.Spec.ServiceOptions.AdditionalMetadata != nil {
+		t.Spec.ServicesMetadata = &AdditionalMetadataSpec{
+			AdditionalLabels:      src.Spec.ServiceOptions.AdditionalMetadata.Labels,
+			AdditionalAnnotations: src.Spec.ServiceOptions.AdditionalMetadata.Annotations,
+		}
+	}
+	if src.Spec.StorageClasses != nil {
+		t.Spec.StorageClasses = &AllowedListSpec{
+			Exact: src.Spec.StorageClasses.Exact,
+			Regex: src.Spec.StorageClasses.Regex,
+		}
+	}
+	t.Annotations[ingressHostnameCollisionScope] = string(src.Spec.IngressOptions.HostnameCollisionScope)
+	if src.Spec.IngressOptions.AllowedClasses != nil {
+		t.Spec.IngressClasses = &AllowedListSpec{
+			Exact: src.Spec.IngressOptions.AllowedClasses.Exact,
+			Regex: src.Spec.IngressOptions.AllowedClasses.Regex,
+		}
+	}
+	if src.Spec.IngressOptions.AllowedHostnames != nil {
+		t.Spec.IngressHostnames = &AllowedListSpec{
+			Exact: src.Spec.IngressOptions.AllowedHostnames.Exact,
+			Regex: src.Spec.IngressOptions.AllowedHostnames.Regex,
+		}
+	}
+	if src.Spec.ContainerRegistries != nil {
+		t.Spec.ContainerRegistries = &AllowedListSpec{
+			Exact: src.Spec.ContainerRegistries.Exact,
+			Regex: src.Spec.ContainerRegistries.Regex,
+		}
+	}
+	if src.Spec.NetworkPolicies != nil {
+		t.Spec.NetworkPolicies = src.Spec.NetworkPolicies.Items
+	}
+	if src.Spec.LimitRanges != nil {
+		t.Spec.LimitRanges = src.Spec.LimitRanges.Items
+	}
+	if src.Spec.ResourceQuota != nil {
+		t.Annotations[resourceQuotaScopeAnnotation] = string(src.Spec.ResourceQuota.Scope)
+		t.Spec.ResourceQuota = src.Spec.ResourceQuota.Items
+	}
+	if len(src.Spec.AdditionalRoleBindings) > 0 {
+		for _, rb := range src.Spec.AdditionalRoleBindings {
+			t.Spec.AdditionalRoleBindings = append(t.Spec.AdditionalRoleBindings, AdditionalRoleBindingsSpec{
+				ClusterRoleName: rb.ClusterRoleName,
+				Subjects:        rb.Subjects,
+			})
+		}
+	}
+	if src.Spec.ServiceOptions != nil && src.Spec.ServiceOptions.ExternalServiceIPs != nil {
+		t.Spec.ExternalServiceIPs = &ExternalServiceIPsSpec{
+			Allowed: make([]AllowedIP, len(src.Spec.ServiceOptions.ExternalServiceIPs.Allowed)),
+		}
+
+		for i, IP := range src.Spec.ServiceOptions.ExternalServiceIPs.Allowed {
+			t.Spec.ExternalServiceIPs.Allowed[i] = AllowedIP(IP)
+		}
+	}
+	if len(src.Spec.ImagePullPolicies) != 0 {
+		var pullPolicies []string
+		for _, policy := range src.Spec.ImagePullPolicies {
+			pullPolicies = append(pullPolicies, string(policy))
+		}
+		t.Annotations[podAllowedImagePullPolicyAnnotation] = strings.Join(pullPolicies, ",")
+	}
+
+	if src.Spec.PriorityClasses != nil {
+		if len(src.Spec.PriorityClasses.Exact) != 0 {
+			t.Annotations[podPriorityAllowedAnnotation] = strings.Join(src.Spec.PriorityClasses.Exact, ",")
+		}
+		if src.Spec.PriorityClasses.Regex != "" {
+			t.Annotations[podPriorityAllowedRegexAnnotation] = src.Spec.PriorityClasses.Regex
+		}
+	}
+
+	if src.Spec.ServiceOptions != nil && src.Spec.ServiceOptions.AllowedServices != nil {
+		t.Annotations[enableNodePortsAnnotation] = strconv.FormatBool(*src.Spec.ServiceOptions.AllowedServices.NodePort)
+		t.Annotations[enableExternalNameAnnotation] = strconv.FormatBool(*src.Spec.ServiceOptions.AllowedServices.ExternalName)
+	}
+
+	// Status
+	t.Status = TenantStatus{
+		Size:       src.Status.Size,
+		Namespaces: src.Status.Namespaces,
+	}
+
+	return nil
+}

api/v1alpha1/conversion_hub_test.go

@@ -0,0 +1,382 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+import (
+	"sort"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
+	rbacv1 "k8s.io/api/rbac/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/utils/pointer"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+func generateTenantsSpecs() (Tenant, capsulev1beta1.Tenant) {
+	var namespaceQuota int32 = 5
+	var nodeSelector = map[string]string{
+		"foo": "bar",
+	}
+	var v1alpha1AdditionalMetadataSpec = &AdditionalMetadataSpec{
+		AdditionalLabels: map[string]string{
+			"foo": "bar",
+		},
+		AdditionalAnnotations: map[string]string{
+			"foo": "bar",
+		},
+	}
+	var v1alpha1AllowedListSpec = &AllowedListSpec{
+		Exact: []string{"foo", "bar"},
+		Regex: "^foo*",
+	}
+	var v1beta1AdditionalMetadataSpec = &capsulev1beta1.AdditionalMetadataSpec{
+		Labels: map[string]string{
+			"foo": "bar",
+		},
+		Annotations: map[string]string{
+			"foo": "bar",
+		},
+	}
+	var v1beta1NamespaceOptions = &capsulev1beta1.NamespaceOptions{
+		Quota:              &namespaceQuota,
+		AdditionalMetadata: v1beta1AdditionalMetadataSpec,
+	}
+	var v1beta1ServiceOptions = &capsulev1beta1.ServiceOptions{
+		AdditionalMetadata: v1beta1AdditionalMetadataSpec,
+		AllowedServices: &capsulev1beta1.AllowedServices{
+			NodePort:     pointer.BoolPtr(false),
+			ExternalName: pointer.BoolPtr(false),
+		},
+		ExternalServiceIPs: &capsulev1beta1.ExternalServiceIPsSpec{
+			Allowed: []capsulev1beta1.AllowedIP{"192.168.0.1"},
+		},
+	}
+	var v1beta1AllowedListSpec = &capsulev1beta1.AllowedListSpec{
+		Exact: []string{"foo", "bar"},
+		Regex: "^foo*",
+	}
+	var networkPolicies = []networkingv1.NetworkPolicySpec{
+		{
+			Ingress: []networkingv1.NetworkPolicyIngressRule{
+				{
+					From: []networkingv1.NetworkPolicyPeer{
+						{
+							NamespaceSelector: &metav1.LabelSelector{
+								MatchLabels: map[string]string{
+									"foo": "tenant-resources",
+								},
+							},
+						},
+						{
+							PodSelector: &metav1.LabelSelector{},
+						},
+						{
+							IPBlock: &networkingv1.IPBlock{
+								CIDR: "192.168.0.0/12",
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+	var limitRanges = []corev1.LimitRangeSpec{
+		{
+			Limits: []corev1.LimitRangeItem{
+				{
+					Type: corev1.LimitTypePod,
+					Min: map[corev1.ResourceName]resource.Quantity{
+						corev1.ResourceCPU:    resource.MustParse("50m"),
+						corev1.ResourceMemory: resource.MustParse("5Mi"),
+					},
+					Max: map[corev1.ResourceName]resource.Quantity{
+						corev1.ResourceCPU:    resource.MustParse("1"),
+						corev1.ResourceMemory: resource.MustParse("1Gi"),
+					},
+				},
+			},
+		},
+	}
+	var resourceQuotas = []corev1.ResourceQuotaSpec{
+		{
+			Hard: map[corev1.ResourceName]resource.Quantity{
+				corev1.ResourceLimitsCPU:      resource.MustParse("8"),
+				corev1.ResourceLimitsMemory:   resource.MustParse("16Gi"),
+				corev1.ResourceRequestsCPU:    resource.MustParse("8"),
+				corev1.ResourceRequestsMemory: resource.MustParse("16Gi"),
+			},
+			Scopes: []corev1.ResourceQuotaScope{
+				corev1.ResourceQuotaScopeNotTerminating,
+			},
+		},
+	}
+
+	var v1beta1Tnt = capsulev1beta1.Tenant{
+		TypeMeta: metav1.TypeMeta{},
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "alice",
+			Labels: map[string]string{
+				"foo": "bar",
+			},
+			Annotations: map[string]string{
+				"foo": "bar",
+			},
+		},
+		Spec: capsulev1beta1.TenantSpec{
+			Owners: capsulev1beta1.OwnerListSpec{
+				{
+					Kind: "User",
+					Name: "alice",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "IngressClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List", "Update", "Delete"},
+						},
+						{
+							Kind:       "Nodes",
+							Operations: []capsulev1beta1.ProxyOperation{"Update", "Delete"},
+						},
+						{
+							Kind:       "StorageClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"Update", "Delete"},
+						},
+					},
+				},
+				{
+					Kind: "User",
+					Name: "bob",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "IngressClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"Update"},
+						},
+						{
+							Kind:       "StorageClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List"},
+						},
+					},
+				},
+				{
+					Kind: "User",
+					Name: "jack",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "IngressClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"Delete"},
+						},
+						{
+							Kind:       "Nodes",
+							Operations: []capsulev1beta1.ProxyOperation{"Delete"},
+						},
+						{
+							Kind:       "StorageClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List"},
+						},
+						{
+							Kind:       "PriorityClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List"},
+						},
+					},
+				},
+				{
+					Kind: "Group",
+					Name: "owner-foo",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "IngressClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List"},
+						},
+					},
+				},
+				{
+					Kind: "Group",
+					Name: "owner-bar",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "IngressClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"List"},
+						},
+						{
+							Kind:       "StorageClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"Delete"},
+						},
+					},
+				},
+				{
+					Kind: "ServiceAccount",
+					Name: "system:serviceaccount:oil-production:default",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "Nodes",
+							Operations: []capsulev1beta1.ProxyOperation{"Update"},
+						},
+					},
+				},
+				{
+					Kind: "ServiceAccount",
+					Name: "system:serviceaccount:gas-production:gas",
+					ProxyOperations: []capsulev1beta1.ProxySettings{
+						{
+							Kind:       "StorageClasses",
+							Operations: []capsulev1beta1.ProxyOperation{"Update"},
+						},
+					},
+				},
+			},
+			NamespaceOptions: v1beta1NamespaceOptions,
+			ServiceOptions:   v1beta1ServiceOptions,
+			StorageClasses:   v1beta1AllowedListSpec,
+			IngressOptions: capsulev1beta1.IngressOptions{
+				HostnameCollisionScope: capsulev1beta1.HostnameCollisionScopeDisabled,
+				AllowedClasses:         v1beta1AllowedListSpec,
+				AllowedHostnames:       v1beta1AllowedListSpec,
+			},
+			ContainerRegistries: v1beta1AllowedListSpec,
+			NodeSelector:        nodeSelector,
+			NetworkPolicies: &capsulev1beta1.NetworkPolicySpec{
+				Items: networkPolicies,
+			},
+			LimitRanges: &capsulev1beta1.LimitRangesSpec{
+				Items: limitRanges,
+			},
+			ResourceQuota: &capsulev1beta1.ResourceQuotaSpec{
+				Scope: capsulev1beta1.ResourceQuotaScopeNamespace,
+				Items: resourceQuotas,
+			},
+			AdditionalRoleBindings: []capsulev1beta1.AdditionalRoleBindingsSpec{
+				{
+					ClusterRoleName: "crds-rolebinding",
+					Subjects: []rbacv1.Subject{
+						{
+							Kind:     "Group",
+							APIGroup: "rbac.authorization.k8s.io",
+							Name:     "system:authenticated",
+						},
+					},
+				},
+			},
+			ImagePullPolicies: []capsulev1beta1.ImagePullPolicySpec{"Always", "IfNotPresent"},
+			PriorityClasses: &capsulev1beta1.AllowedListSpec{
+				Exact: []string{"default"},
+				Regex: "^tier-.*$",
+			},
+		},
+		Status: capsulev1beta1.TenantStatus{
+			Size:       1,
+			Namespaces: []string{"foo", "bar"},
+		},
+	}
+
+	var v1alpha1Tnt = Tenant{
+		TypeMeta: metav1.TypeMeta{},
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "alice",
+			Labels: map[string]string{
+				"foo": "bar",
+			},
+			Annotations: map[string]string{
+				"foo":                                "bar",
+				podAllowedImagePullPolicyAnnotation:  "Always,IfNotPresent",
+				enableExternalNameAnnotation:         "false",
+				enableNodePortsAnnotation:            "false",
+				podPriorityAllowedAnnotation:         "default",
+				podPriorityAllowedRegexAnnotation:    "^tier-.*$",
+				ownerGroupsAnnotation:                "owner-foo,owner-bar",
+				ownerUsersAnnotation:                 "bob,jack",
+				ownerServiceAccountAnnotation:        "system:serviceaccount:oil-production:default,system:serviceaccount:gas-production:gas",
+				enableNodeUpdateAnnotation:           "alice,system:serviceaccount:oil-production:default",
+				enableNodeDeletionAnnotation:         "alice,jack",
+				enableStorageClassListingAnnotation:  "bob,jack",
+				enableStorageClassUpdateAnnotation:   "alice,system:serviceaccount:gas-production:gas",
+				enableStorageClassDeletionAnnotation: "alice,owner-bar",
+				enableIngressClassListingAnnotation:  "alice,owner-foo,owner-bar",
+				enableIngressClassUpdateAnnotation:   "alice,bob",
+				enableIngressClassDeletionAnnotation: "alice,jack",
+				enablePriorityClassListingAnnotation: "jack",
+				resourceQuotaScopeAnnotation:         "Namespace",
+				ingressHostnameCollisionScope:        "Disabled",
+			},
+		},
+		Spec: TenantSpec{
+			Owner: OwnerSpec{
+				Name: "alice",
+				Kind: "User",
+			},
+			NamespaceQuota:      &namespaceQuota,
+			NamespacesMetadata:  v1alpha1AdditionalMetadataSpec,
+			ServicesMetadata:    v1alpha1AdditionalMetadataSpec,
+			StorageClasses:      v1alpha1AllowedListSpec,
+			IngressClasses:      v1alpha1AllowedListSpec,
+			IngressHostnames:    v1alpha1AllowedListSpec,
+			ContainerRegistries: v1alpha1AllowedListSpec,
+			NodeSelector:        nodeSelector,
+			NetworkPolicies:     networkPolicies,
+			LimitRanges:         limitRanges,
+			ResourceQuota:       resourceQuotas,
+			AdditionalRoleBindings: []AdditionalRoleBindingsSpec{
+				{
+					ClusterRoleName: "crds-rolebinding",
+					Subjects: []rbacv1.Subject{
+						{
+							Kind:     "Group",
+							APIGroup: "rbac.authorization.k8s.io",
+							Name:     "system:authenticated",
+						},
+					},
+				},
+			},
+			ExternalServiceIPs: &ExternalServiceIPsSpec{
+				Allowed: []AllowedIP{"192.168.0.1"},
+			},
+		},
+		Status: TenantStatus{
+			Size:       1,
+			Namespaces: []string{"foo", "bar"},
+		},
+	}
+
+	return v1alpha1Tnt, v1beta1Tnt
+}
+
+func TestConversionHub_ConvertTo(t *testing.T) {
+	var v1beta1ConvertedTnt = capsulev1beta1.Tenant{}
+
+	v1alpha1Tnt, v1beta1tnt := generateTenantsSpecs()
+	err := v1alpha1Tnt.ConvertTo(&v1beta1ConvertedTnt)
+	if assert.NoError(t, err) {
+		sort.Slice(v1beta1tnt.Spec.Owners, func(i, j int) bool {
+			return v1beta1tnt.Spec.Owners[i].Name < v1beta1tnt.Spec.Owners[j].Name
+		})
+		sort.Slice(v1beta1ConvertedTnt.Spec.Owners, func(i, j int) bool {
+			return v1beta1ConvertedTnt.Spec.Owners[i].Name < v1beta1ConvertedTnt.Spec.Owners[j].Name
+		})
+
+		for _, owner := range v1beta1tnt.Spec.Owners {
+			sort.Slice(owner.ProxyOperations, func(i, j int) bool {
+				return owner.ProxyOperations[i].Kind < owner.ProxyOperations[j].Kind
+			})
+		}
+		for _, owner := range v1beta1ConvertedTnt.Spec.Owners {
+			sort.Slice(owner.ProxyOperations, func(i, j int) bool {
+				return owner.ProxyOperations[i].Kind < owner.ProxyOperations[j].Kind
+			})
+		}
+		assert.Equal(t, v1beta1tnt, v1beta1ConvertedTnt)
+	}
+}
+
+func TestConversionHub_ConvertFrom(t *testing.T) {
+	var v1alpha1ConvertedTnt = Tenant{}
+	v1alpha1Tnt, v1beta1tnt := generateTenantsSpecs()
+
+	err := v1alpha1ConvertedTnt.ConvertFrom(&v1beta1tnt)
+	if assert.NoError(t, err) {
+		assert.EqualValues(t, v1alpha1Tnt, v1alpha1ConvertedTnt)
+	}
+}

api/v1alpha1/domain/allowed.go

@@ -1,22 +0,0 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package domain
-
-type AllowedList interface {
-	ExactMatch(value string) bool
-	RegexMatch(value string) bool
-}

api/v1alpha1/domain/podpriority.go

@@ -1,51 +0,0 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package domain
-
-import (
-	"regexp"
-	"strings"
-
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-
-	"github.com/clastix/capsule/api/v1alpha1"
-)
-
-const (
-	podPriorityAllowedAnnotation      = "priorityclass.capsule.clastix.io/allowed"
-	podPriorityAllowedRegexAnnotation = "priorityclass.capsule.clastix.io/allowed-regex"
-)
-
-func NewPodPriority(object metav1.Object) (allowed *v1alpha1.AllowedListSpec) {
-	annotations := object.GetAnnotations()
-
-	if v, ok := annotations[podPriorityAllowedAnnotation]; ok {
-		allowed = &v1alpha1.AllowedListSpec{}
-		allowed.Exact = strings.Split(v, ",")
-	}
-
-	if v, ok := annotations[podPriorityAllowedRegexAnnotation]; ok {
-		if _, err := regexp.Compile(v); err == nil {
-			if allowed == nil {
-				allowed = &v1alpha1.AllowedListSpec{}
-			}
-			allowed.Regex = v
-		}
-	}
-
-	return
-}

api/v1alpha1/domain/registry_test.go

@@ -1,78 +0,0 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package domain
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestNewRegistry(t *testing.T) {
-	type tc struct {
-		registry string
-		repo     string
-		image    string
-		tag      string
-	}
-	for name, tc := range map[string]tc{
-		"docker.io/my-org/my-repo:v0.0.1": {
-			registry: "docker.io",
-			repo:     "my-org",
-			image:    "my-repo",
-			tag:      "v0.0.1",
-		},
-		"unnamed/repository:1.2.3": {
-			registry: "docker.io",
-			repo:     "unnamed",
-			image:    "repository",
-			tag:      "1.2.3",
-		},
-		"quay.io/clastix/capsule:v1.0.0": {
-			registry: "quay.io",
-			repo:     "clastix",
-			image:    "capsule",
-			tag:      "v1.0.0",
-		},
-		"docker.io/redis:alpine": {
-			registry: "docker.io",
-			repo:     "",
-			image:    "redis",
-			tag:      "alpine",
-		},
-		"nginx:alpine": {
-			registry: "docker.io",
-			repo:     "",
-			image:    "nginx",
-			tag:      "alpine",
-		},
-		"nginx": {
-			registry: "docker.io",
-			repo:     "",
-			image:    "nginx",
-			tag:      "latest",
-		},
-	} {
-		t.Run(name, func(t *testing.T) {
-			r := NewRegistry(name)
-			assert.Equal(t, tc.registry, r.Registry())
-			assert.Equal(t, tc.repo, r.Repository())
-			assert.Equal(t, tc.image, r.Image())
-			assert.Equal(t, tc.tag, r.Tag())
-		})
-	}
-}

api/v1alpha1/external_service_ips.go

@@ -0,0 +1,11 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+// +kubebuilder:validation:Pattern="^([0-9]{1,3}.){3}[0-9]{1,3}(/([0-9]|[1-2][0-9]|3[0-2]))?$"
+type AllowedIP string
+
+type ExternalServiceIPsSpec struct {
+	Allowed []AllowedIP `json:"allowed"`
+}

api/v1alpha1/groupversion_info.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 // Package v1alpha1 contains API Schema definitions for the capsule.clastix.io v1alpha1 API group
 // +kubebuilder:object:generate=true

api/v1alpha1/ingress_hostnames_list.go

@@ -1,42 +0,0 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package v1alpha1
-
-import (
-	"sort"
-)
-
-type IngressHostnamesList []string
-
-func (hostnames IngressHostnamesList) Len() int {
-	return len(hostnames)
-}
-
-func (hostnames IngressHostnamesList) Swap(i, j int) {
-	hostnames[i], hostnames[j] = hostnames[j], hostnames[i]
-}
-
-func (hostnames IngressHostnamesList) Less(i, j int) bool {
-	return hostnames[i] < hostnames[j]
-}
-
-func (hostnames IngressHostnamesList) IsStringInList(value string) (ok bool) {
-	sort.Sort(hostnames)
-	i := sort.SearchStrings(hostnames, value)
-	ok = i < hostnames.Len() && hostnames[i] == value
-	return
-}

api/v1alpha1/owner.go

@@ -0,0 +1,17 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+// OwnerSpec defines tenant owner name and kind
+type OwnerSpec struct {
+	Name string `json:"name"`
+	Kind Kind   `json:"kind"`
+}
+
+// +kubebuilder:validation:Enum=User;Group
+type Kind string
+
+func (k Kind) String() string {
+	return string(k)
+}

api/v1alpha1/tenant_annotations.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 

api/v1alpha1/tenant_func.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 
@@ -22,6 +9,13 @@ import (
 	corev1 "k8s.io/api/core/v1"
 )
 
+func (t *Tenant) IsCordoned() bool {
+	if v, ok := t.Labels["capsule.clastix.io/cordon"]; ok && v == "enabled" {
+		return true
+	}
+	return false
+}
+
 func (t *Tenant) IsFull() bool {
 	// we don't have limits on assigned Namespaces
 	if t.Spec.NamespaceQuota == nil {

api/v1alpha1/tenant_labels.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 

api/v1alpha1/tenant_types.go

@@ -1,53 +1,22 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package v1alpha1
 
 import (
 	corev1 "k8s.io/api/core/v1"
 	networkingv1 "k8s.io/api/networking/v1"
-	rbacv1 "k8s.io/api/rbac/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
-type AdditionalMetadata struct {
-	AdditionalLabels      map[string]string `json:"additionalLabels,omitempty"`
-	AdditionalAnnotations map[string]string `json:"additionalAnnotations,omitempty"`
-}
-
-type IngressHostnamesSpec struct {
-	Allowed      IngressHostnamesList `json:"allowed"`
-	AllowedRegex string               `json:"allowedRegex"`
-}
-
-// +kubebuilder:validation:Pattern="^([0-9]{1,3}.){3}[0-9]{1,3}(/([0-9]|[1-2][0-9]|3[0-2]))?$"
-type AllowedIP string
-
-type ExternalServiceIPs struct {
-	Allowed []AllowedIP `json:"allowed"`
-}
-
 // TenantSpec defines the desired state of Tenant
 type TenantSpec struct {
 	Owner OwnerSpec `json:"owner"`
 
 	//+kubebuilder:validation:Minimum=1
 	NamespaceQuota         *int32                           `json:"namespaceQuota,omitempty"`
-	NamespacesMetadata     AdditionalMetadata               `json:"namespacesMetadata,omitempty"`
-	ServicesMetadata       AdditionalMetadata               `json:"servicesMetadata,omitempty"`
+	NamespacesMetadata     *AdditionalMetadataSpec          `json:"namespacesMetadata,omitempty"`
+	ServicesMetadata       *AdditionalMetadataSpec          `json:"servicesMetadata,omitempty"`
 	StorageClasses         *AllowedListSpec                 `json:"storageClasses,omitempty"`
 	IngressClasses         *AllowedListSpec                 `json:"ingressClasses,omitempty"`
 	IngressHostnames       *AllowedListSpec                 `json:"ingressHostnames,omitempty"`
@@ -56,27 +25,8 @@ type TenantSpec struct {
 	NetworkPolicies        []networkingv1.NetworkPolicySpec `json:"networkPolicies,omitempty"`
 	LimitRanges            []corev1.LimitRangeSpec          `json:"limitRanges,omitempty"`
 	ResourceQuota          []corev1.ResourceQuotaSpec       `json:"resourceQuotas,omitempty"`
-	AdditionalRoleBindings []AdditionalRoleBindings         `json:"additionalRoleBindings,omitempty"`
-	ExternalServiceIPs     *ExternalServiceIPs              `json:"externalServiceIPs,omitempty"`
-}
-
-type AdditionalRoleBindings struct {
-	ClusterRoleName string `json:"clusterRoleName"`
-	// kubebuilder:validation:Minimum=1
-	Subjects []rbacv1.Subject `json:"subjects"`
-}
-
-// OwnerSpec defines tenant owner name and kind
-type OwnerSpec struct {
-	Name string `json:"name"`
-	Kind Kind   `json:"kind"`
-}
-
-// +kubebuilder:validation:Enum=User;Group
-type Kind string
-
-func (k Kind) String() string {
-	return string(k)
+	AdditionalRoleBindings []AdditionalRoleBindingsSpec     `json:"additionalRoleBindings,omitempty"`
+	ExternalServiceIPs     *ExternalServiceIPsSpec          `json:"externalServiceIPs,omitempty"`
 }
 
 // TenantStatus defines the observed state of Tenant

api/v1alpha1/tenant_webhook.go

@@ -0,0 +1,21 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+import (
+	"io/ioutil"
+
+	ctrl "sigs.k8s.io/controller-runtime"
+)
+
+func (t *Tenant) SetupWebhookWithManager(mgr ctrl.Manager) error {
+	certData, _ := ioutil.ReadFile("/tmp/k8s-webhook-server/serving-certs/tls.crt")
+	if len(certData) == 0 {
+		return nil
+	}
+
+	return ctrl.NewWebhookManagedBy(mgr).
+		For(t).
+		Complete()
+}

api/v1alpha1/zz_generated.deepcopy.go

@@ -1,20 +1,7 @@
 // +build !ignore_autogenerated
 
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by controller-gen. DO NOT EDIT.
 
@@ -22,13 +9,13 @@ package v1alpha1
 
 import (
 	corev1 "k8s.io/api/core/v1"
-	"k8s.io/api/networking/v1"
-	rbacv1 "k8s.io/api/rbac/v1"
+	networkingv1 "k8s.io/api/networking/v1"
+	"k8s.io/api/rbac/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in *AdditionalMetadata) DeepCopyInto(out *AdditionalMetadata) {
+func (in *AdditionalMetadataSpec) DeepCopyInto(out *AdditionalMetadataSpec) {
 	*out = *in
 	if in.AdditionalLabels != nil {
 		in, out := &in.AdditionalLabels, &out.AdditionalLabels
@@ -46,32 +33,32 @@ func (in *AdditionalMetadata) DeepCopyInto(out *AdditionalMetadata) {
 	}
 }
 
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalMetadata.
-func (in *AdditionalMetadata) DeepCopy() *AdditionalMetadata {
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalMetadataSpec.
+func (in *AdditionalMetadataSpec) DeepCopy() *AdditionalMetadataSpec {
 	if in == nil {
 		return nil
 	}
-	out := new(AdditionalMetadata)
+	out := new(AdditionalMetadataSpec)
 	in.DeepCopyInto(out)
 	return out
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in *AdditionalRoleBindings) DeepCopyInto(out *AdditionalRoleBindings) {
+func (in *AdditionalRoleBindingsSpec) DeepCopyInto(out *AdditionalRoleBindingsSpec) {
 	*out = *in
 	if in.Subjects != nil {
 		in, out := &in.Subjects, &out.Subjects
-		*out = make([]rbacv1.Subject, len(*in))
+		*out = make([]v1.Subject, len(*in))
 		copy(*out, *in)
 	}
 }
 
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalRoleBindings.
-func (in *AdditionalRoleBindings) DeepCopy() *AdditionalRoleBindings {
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalRoleBindingsSpec.
+func (in *AdditionalRoleBindingsSpec) DeepCopy() *AdditionalRoleBindingsSpec {
 	if in == nil {
 		return nil
 	}
-	out := new(AdditionalRoleBindings)
+	out := new(AdditionalRoleBindingsSpec)
 	in.DeepCopyInto(out)
 	return out
 }
@@ -175,7 +162,7 @@ func (in *CapsuleConfigurationSpec) DeepCopy() *CapsuleConfigurationSpec {
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in *ExternalServiceIPs) DeepCopyInto(out *ExternalServiceIPs) {
+func (in *ExternalServiceIPsSpec) DeepCopyInto(out *ExternalServiceIPsSpec) {
 	*out = *in
 	if in.Allowed != nil {
 		in, out := &in.Allowed, &out.Allowed
@@ -184,51 +171,12 @@ func (in *ExternalServiceIPs) DeepCopyInto(out *ExternalServiceIPs) {
 	}
 }
 
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExternalServiceIPs.
-func (in *ExternalServiceIPs) DeepCopy() *ExternalServiceIPs {
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExternalServiceIPsSpec.
+func (in *ExternalServiceIPsSpec) DeepCopy() *ExternalServiceIPsSpec {
 	if in == nil {
 		return nil
 	}
-	out := new(ExternalServiceIPs)
-	in.DeepCopyInto(out)
-	return out
-}
-
-// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in IngressHostnamesList) DeepCopyInto(out *IngressHostnamesList) {
-	{
-		in := &in
-		*out = make(IngressHostnamesList, len(*in))
-		copy(*out, *in)
-	}
-}
-
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new IngressHostnamesList.
-func (in IngressHostnamesList) DeepCopy() IngressHostnamesList {
-	if in == nil {
-		return nil
-	}
-	out := new(IngressHostnamesList)
-	in.DeepCopyInto(out)
-	return *out
-}
-
-// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
-func (in *IngressHostnamesSpec) DeepCopyInto(out *IngressHostnamesSpec) {
-	*out = *in
-	if in.Allowed != nil {
-		in, out := &in.Allowed, &out.Allowed
-		*out = make(IngressHostnamesList, len(*in))
-		copy(*out, *in)
-	}
-}
-
-// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new IngressHostnamesSpec.
-func (in *IngressHostnamesSpec) DeepCopy() *IngressHostnamesSpec {
-	if in == nil {
-		return nil
-	}
-	out := new(IngressHostnamesSpec)
+	out := new(ExternalServiceIPsSpec)
 	in.DeepCopyInto(out)
 	return out
 }
@@ -316,8 +264,16 @@ func (in *TenantSpec) DeepCopyInto(out *TenantSpec) {
 		*out = new(int32)
 		**out = **in
 	}
-	in.NamespacesMetadata.DeepCopyInto(&out.NamespacesMetadata)
-	in.ServicesMetadata.DeepCopyInto(&out.ServicesMetadata)
+	if in.NamespacesMetadata != nil {
+		in, out := &in.NamespacesMetadata, &out.NamespacesMetadata
+		*out = new(AdditionalMetadataSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ServicesMetadata != nil {
+		in, out := &in.ServicesMetadata, &out.ServicesMetadata
+		*out = new(AdditionalMetadataSpec)
+		(*in).DeepCopyInto(*out)
+	}
 	if in.StorageClasses != nil {
 		in, out := &in.StorageClasses, &out.StorageClasses
 		*out = new(AllowedListSpec)
@@ -347,7 +303,7 @@ func (in *TenantSpec) DeepCopyInto(out *TenantSpec) {
 	}
 	if in.NetworkPolicies != nil {
 		in, out := &in.NetworkPolicies, &out.NetworkPolicies
-		*out = make([]v1.NetworkPolicySpec, len(*in))
+		*out = make([]networkingv1.NetworkPolicySpec, len(*in))
 		for i := range *in {
 			(*in)[i].DeepCopyInto(&(*out)[i])
 		}
@@ -368,14 +324,14 @@ func (in *TenantSpec) DeepCopyInto(out *TenantSpec) {
 	}
 	if in.AdditionalRoleBindings != nil {
 		in, out := &in.AdditionalRoleBindings, &out.AdditionalRoleBindings
-		*out = make([]AdditionalRoleBindings, len(*in))
+		*out = make([]AdditionalRoleBindingsSpec, len(*in))
 		for i := range *in {
 			(*in)[i].DeepCopyInto(&(*out)[i])
 		}
 	}
 	if in.ExternalServiceIPs != nil {
 		in, out := &in.ExternalServiceIPs, &out.ExternalServiceIPs
-		*out = new(ExternalServiceIPs)
+		*out = new(ExternalServiceIPsSpec)
 		(*in).DeepCopyInto(*out)
 	}
 }

api/v1beta1/additional_metadata.go

@@ -0,0 +1,9 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+type AdditionalMetadataSpec struct {
+	Labels      map[string]string `json:"labels,omitempty"`
+	Annotations map[string]string `json:"annotations,omitempty"`
+}

api/v1beta1/additional_role_bindings.go

@@ -0,0 +1,12 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import rbacv1 "k8s.io/api/rbac/v1"
+
+type AdditionalRoleBindingsSpec struct {
+	ClusterRoleName string `json:"clusterRoleName"`
+	// kubebuilder:validation:Minimum=1
+	Subjects []rbacv1.Subject `json:"subjects"`
+}

api/v1beta1/allowed_list.go

@@ -0,0 +1,33 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	"regexp"
+	"sort"
+	"strings"
+)
+
+type AllowedListSpec struct {
+	Exact []string `json:"allowed,omitempty"`
+	Regex string   `json:"allowedRegex,omitempty"`
+}
+
+func (in *AllowedListSpec) ExactMatch(value string) (ok bool) {
+	if len(in.Exact) > 0 {
+		sort.SliceStable(in.Exact, func(i, j int) bool {
+			return strings.ToLower(in.Exact[i]) < strings.ToLower(in.Exact[j])
+		})
+		i := sort.SearchStrings(in.Exact, value)
+		ok = i < len(in.Exact) && in.Exact[i] == value
+	}
+	return
+}
+
+func (in AllowedListSpec) RegexMatch(value string) (ok bool) {
+	if len(in.Regex) > 0 {
+		ok = regexp.MustCompile(in.Regex).MatchString(value)
+	}
+	return
+}

api/v1beta1/allowed_list_test.go

@@ -0,0 +1,67 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAllowedListSpec_ExactMatch(t *testing.T) {
+	type tc struct {
+		In    []string
+		True  []string
+		False []string
+	}
+	for _, tc := range []tc{
+		{
+			[]string{"foo", "bar", "bizz", "buzz"},
+			[]string{"foo", "bar", "bizz", "buzz"},
+			[]string{"bing", "bong"},
+		},
+		{
+			[]string{"one", "two", "three"},
+			[]string{"one", "two", "three"},
+			[]string{"a", "b", "c"},
+		},
+		{
+			nil,
+			nil,
+			[]string{"any", "value"},
+		},
+	} {
+		a := AllowedListSpec{
+			Exact: tc.In,
+		}
+		for _, ok := range tc.True {
+			assert.True(t, a.ExactMatch(ok))
+		}
+		for _, ko := range tc.False {
+			assert.False(t, a.ExactMatch(ko))
+		}
+	}
+}
+
+func TestAllowedListSpec_RegexMatch(t *testing.T) {
+	type tc struct {
+		Regex string
+		True  []string
+		False []string
+	}
+	for _, tc := range []tc{
+		{`first-\w+-pattern`, []string{"first-date-pattern", "first-year-pattern"}, []string{"broken", "first-year", "second-date-pattern"}},
+		{``, nil, []string{"any", "value"}},
+	} {
+		a := AllowedListSpec{
+			Regex: tc.Regex,
+		}
+		for _, ok := range tc.True {
+			assert.True(t, a.RegexMatch(ok))
+		}
+		for _, ko := range tc.False {
+			assert.False(t, a.RegexMatch(ko))
+		}
+	}
+}

api/v1beta1/groupversion_info.go

@@ -0,0 +1,23 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+// Package v1beta1 contains API Schema definitions for the capsule v1beta1 API group
+//+kubebuilder:object:generate=true
+//+groupName=capsule.clastix.io
+package v1beta1
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	// GroupVersion is group version used to register these objects
+	GroupVersion = schema.GroupVersion{Group: "capsule.clastix.io", Version: "v1beta1"}
+
+	// SchemeBuilder is used to add go types to the GroupVersionKind scheme
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	// AddToScheme adds the types in this group-version to the given scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)

api/v1beta1/hostname_collision_scope.go

@@ -0,0 +1,14 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+const (
+	HostnameCollisionScopeCluster   HostnameCollisionScope = "Cluster"
+	HostnameCollisionScopeTenant    HostnameCollisionScope = "Tenant"
+	HostnameCollisionScopeNamespace HostnameCollisionScope = "Namespace"
+	HostnameCollisionScopeDisabled  HostnameCollisionScope = "Disabled"
+)
+
+// +kubebuilder:validation:Enum=Cluster;Tenant;Namespace;Disabled
+type HostnameCollisionScope string

api/v1beta1/image_pull_policy.go

@@ -0,0 +1,11 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+// +kubebuilder:validation:Enum=Always;Never;IfNotPresent
+type ImagePullPolicySpec string
+
+func (i ImagePullPolicySpec) String() string {
+	return string(i)
+}

api/v1beta1/ingress_options.go

@@ -0,0 +1,24 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+type IngressOptions struct {
+	// Specifies the allowed IngressClasses assigned to the Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed IngressClasses. Optional.
+	AllowedClasses *AllowedListSpec `json:"allowedClasses,omitempty"`
+	// Defines the scope of hostname collision check performed when Tenant Owners create Ingress with allowed hostnames.
+	//
+	//
+	// - Cluster: disallow the creation of an Ingress if the pair hostname and path is already used across the Namespaces managed by Capsule.
+	//
+	// - Tenant: disallow the creation of an Ingress if the pair hostname and path is already used across the Namespaces of the Tenant.
+	//
+	// - Namespace: disallow the creation of an Ingress if the pair hostname and path is already used in the Ingress Namespace.
+	//
+	//
+	// Optional.
+	// +kubebuilder:default=Disabled
+	HostnameCollisionScope HostnameCollisionScope `json:"hostnameCollisionScope,omitempty"`
+	// Specifies the allowed hostnames in Ingresses for the given Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed hostnames. Optional.
+	AllowedHostnames *AllowedListSpec `json:"allowedHostnames,omitempty"`
+}

api/v1beta1/limit_ranges.go

@@ -0,0 +1,10 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import corev1 "k8s.io/api/core/v1"
+
+type LimitRangesSpec struct {
+	Items []corev1.LimitRangeSpec `json:"items,omitempty"`
+}

api/v1beta1/namespace_options.go

@@ -0,0 +1,9 @@
+package v1beta1
+
+type NamespaceOptions struct {
+	//+kubebuilder:validation:Minimum=1
+	// Specifies the maximum number of namespaces allowed for that Tenant. Once the namespace quota assigned to the Tenant has been reached, the Tenant owner cannot create further namespaces. Optional.
+	Quota *int32 `json:"quota,omitempty"`
+	// Specifies additional labels and annotations the Capsule operator places on any Namespace resource in the Tenant. Optional.
+	AdditionalMetadata *AdditionalMetadataSpec `json:"additionalMetadata,omitempty"`
+}

api/v1beta1/network_policy.go

@@ -0,0 +1,12 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	networkingv1 "k8s.io/api/networking/v1"
+)
+
+type NetworkPolicySpec struct {
+	Items []networkingv1.NetworkPolicySpec `json:"items,omitempty"`
+}

api/v1beta1/owner.go

@@ -0,0 +1,54 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+type OwnerSpec struct {
+	// Kind of tenant owner. Possible values are "User", "Group", and "ServiceAccount"
+	Kind OwnerKind `json:"kind"`
+	// Name of tenant owner.
+	Name string `json:"name"`
+	// Proxy settings for tenant owner.
+	ProxyOperations []ProxySettings `json:"proxySettings,omitempty"`
+}
+
+// +kubebuilder:validation:Enum=User;Group;ServiceAccount
+type OwnerKind string
+
+func (k OwnerKind) String() string {
+	return string(k)
+}
+
+type ProxySettings struct {
+	Kind       ProxyServiceKind `json:"kind"`
+	Operations []ProxyOperation `json:"operations"`
+}
+
+// +kubebuilder:validation:Enum=List;Update;Delete
+type ProxyOperation string
+
+func (p ProxyOperation) String() string {
+	return string(p)
+}
+
+// +kubebuilder:validation:Enum=Nodes;StorageClasses;IngressClasses;PriorityClasses
+type ProxyServiceKind string
+
+func (p ProxyServiceKind) String() string {
+	return string(p)
+}
+
+const (
+	NodesProxy           ProxyServiceKind = "Nodes"
+	StorageClassesProxy  ProxyServiceKind = "StorageClasses"
+	IngressClassesProxy  ProxyServiceKind = "IngressClasses"
+	PriorityClassesProxy ProxyServiceKind = "PriorityClasses"
+
+	ListOperation   ProxyOperation = "List"
+	UpdateOperation ProxyOperation = "Update"
+	DeleteOperation ProxyOperation = "Delete"
+
+	UserOwner           OwnerKind = "User"
+	GroupOwner          OwnerKind = "Group"
+	ServiceAccountOwner OwnerKind = "ServiceAccount"
+)

api/v1beta1/owner_list.go

@@ -0,0 +1,34 @@
+package v1beta1
+
+import (
+	"sort"
+)
+
+type OwnerListSpec []OwnerSpec
+
+func (o OwnerListSpec) FindOwner(name string, kind OwnerKind) (owner OwnerSpec) {
+	sort.Sort(ByKindAndName(o))
+	i := sort.Search(len(o), func(i int) bool {
+		return o[i].Kind >= kind && o[i].Name >= name
+	})
+
+	if i < len(o) && o[i].Kind == kind && o[i].Name == name {
+		return o[i]
+	}
+	return
+}
+
+type ByKindAndName OwnerListSpec
+
+func (b ByKindAndName) Len() int {
+	return len(b)
+}
+func (b ByKindAndName) Less(i, j int) bool {
+	if b[i].Kind.String() != b[j].Kind.String() {
+		return b[i].Kind.String() < b[j].Kind.String()
+	}
+	return b[i].Name < b[j].Name
+}
+func (b ByKindAndName) Swap(i, j int) {
+	b[i], b[j] = b[j], b[i]
+}

api/v1beta1/owner_list_test.go

@@ -0,0 +1,83 @@
+package v1beta1
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOwnerListSpec_FindOwner(t *testing.T) {
+	var bla = OwnerSpec{
+		Kind: UserOwner,
+		Name: "bla",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       IngressClassesProxy,
+				Operations: []ProxyOperation{"Delete"},
+			},
+		},
+	}
+	var bar = OwnerSpec{
+		Kind: GroupOwner,
+		Name: "bar",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       StorageClassesProxy,
+				Operations: []ProxyOperation{"Delete"},
+			},
+		},
+	}
+	var baz = OwnerSpec{
+		Kind: UserOwner,
+		Name: "baz",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       StorageClassesProxy,
+				Operations: []ProxyOperation{"Update"},
+			},
+		},
+	}
+	var fim = OwnerSpec{
+		Kind: ServiceAccountOwner,
+		Name: "fim",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       NodesProxy,
+				Operations: []ProxyOperation{"List"},
+			},
+		},
+	}
+	var bom = OwnerSpec{
+		Kind: GroupOwner,
+		Name: "bom",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       StorageClassesProxy,
+				Operations: []ProxyOperation{"Delete"},
+			},
+			{
+				Kind:       NodesProxy,
+				Operations: []ProxyOperation{"Delete"},
+			},
+		},
+	}
+	var qip = OwnerSpec{
+		Kind: ServiceAccountOwner,
+		Name: "qip",
+		ProxyOperations: []ProxySettings{
+			{
+				Kind:       StorageClassesProxy,
+				Operations: []ProxyOperation{"List", "Delete"},
+			},
+		},
+	}
+	var owners = OwnerListSpec{bom, qip, bla, bar, baz, fim}
+
+	assert.Equal(t, owners.FindOwner("bom", GroupOwner), bom)
+	assert.Equal(t, owners.FindOwner("qip", ServiceAccountOwner), qip)
+	assert.Equal(t, owners.FindOwner("bla", UserOwner), bla)
+	assert.Equal(t, owners.FindOwner("bar", GroupOwner), bar)
+	assert.Equal(t, owners.FindOwner("baz", UserOwner), baz)
+	assert.Equal(t, owners.FindOwner("fim", ServiceAccountOwner), fim)
+	assert.Equal(t, owners.FindOwner("notfound", ServiceAccountOwner), OwnerSpec{})
+}

api/v1beta1/resource_quota.go

@@ -0,0 +1,21 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import corev1 "k8s.io/api/core/v1"
+
+// +kubebuilder:validation:Enum=Tenant;Namespace
+type ResourceQuotaScope string
+
+const (
+	ResourceQuotaScopeTenant    ResourceQuotaScope = "Tenant"
+	ResourceQuotaScopeNamespace ResourceQuotaScope = "Namespace"
+)
+
+type ResourceQuotaSpec struct {
+	// +kubebuilder:default=Tenant
+	// Define if the Resource Budget should compute resource across all Namespaces in the Tenant or individually per cluster. Default is Tenant
+	Scope ResourceQuotaScope         `json:"scope,omitempty"`
+	Items []corev1.ResourceQuotaSpec `json:"items,omitempty"`
+}

api/v1beta1/service_allowed_ips.go

@@ -0,0 +1,11 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+// +kubebuilder:validation:Pattern="^([0-9]{1,3}.){3}[0-9]{1,3}(/([0-9]|[1-2][0-9]|3[0-2]))?$"
+type AllowedIP string
+
+type ExternalServiceIPsSpec struct {
+	Allowed []AllowedIP `json:"allowed"`
+}

api/v1beta1/service_allowed_types.go

@@ -0,0 +1,13 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+type AllowedServices struct {
+	//+kubebuilder:default=true
+	// Specifies if NodePort service type resources are allowed for the Tenant. Default is true. Optional.
+	NodePort *bool `json:"nodePort,omitempty"`
+	//+kubebuilder:default=true
+	// Specifies if ExternalName service type resources are allowed for the Tenant. Default is true. Optional.
+	ExternalName *bool `json:"externalName,omitempty"`
+}

api/v1beta1/service_options.go

@@ -0,0 +1,13 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+type ServiceOptions struct {
+	// Specifies additional labels and annotations the Capsule operator places on any Service resource in the Tenant. Optional.
+	AdditionalMetadata *AdditionalMetadataSpec `json:"additionalMetadata,omitempty"`
+	// Block or deny certain type of Services. Optional.
+	AllowedServices *AllowedServices `json:"allowedServices,omitempty"`
+	// Specifies the external IPs that can be used in Services with type ClusterIP. An empty list means no IPs are allowed. Optional.
+	ExternalServiceIPs *ExternalServiceIPsSpec `json:"externalIPs,omitempty"`
+}

api/v1beta1/tenant_annotations.go

@@ -0,0 +1,25 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	"fmt"
+)
+
+const (
+	AvailableIngressClassesAnnotation       = "capsule.clastix.io/ingress-classes"
+	AvailableIngressClassesRegexpAnnotation = "capsule.clastix.io/ingress-classes-regexp"
+	AvailableStorageClassesAnnotation       = "capsule.clastix.io/storage-classes"
+	AvailableStorageClassesRegexpAnnotation = "capsule.clastix.io/storage-classes-regexp"
+	AllowedRegistriesAnnotation             = "capsule.clastix.io/allowed-registries"
+	AllowedRegistriesRegexpAnnotation       = "capsule.clastix.io/allowed-registries-regexp"
+)
+
+func UsedQuotaFor(resource fmt.Stringer) string {
+	return "quota.capsule.clastix.io/used-" + resource.String()
+}
+
+func HardQuotaFor(resource fmt.Stringer) string {
+	return "quota.capsule.clastix.io/hard-" + resource.String()
+}

api/v1beta1/tenant_func.go

@@ -0,0 +1,42 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	"sort"
+
+	corev1 "k8s.io/api/core/v1"
+)
+
+func (t *Tenant) IsCordoned() bool {
+	if v, ok := t.Labels["capsule.clastix.io/cordon"]; ok && v == "enabled" {
+		return true
+	}
+	return false
+}
+
+func (t *Tenant) IsFull() bool {
+	// we don't have limits on assigned Namespaces
+	if t.Spec.NamespaceOptions == nil || t.Spec.NamespaceOptions.Quota == nil {
+		return false
+	}
+	return len(t.Status.Namespaces) >= int(*t.Spec.NamespaceOptions.Quota)
+}
+
+func (t *Tenant) AssignNamespaces(namespaces []corev1.Namespace) {
+	var l []string
+	for _, ns := range namespaces {
+		if ns.Status.Phase == corev1.NamespaceActive {
+			l = append(l, ns.GetName())
+		}
+	}
+	sort.Strings(l)
+
+	t.Status.Namespaces = l
+	t.Status.Size = uint(len(l))
+}
+
+func (t *Tenant) GetOwnerProxySettings(name string, kind OwnerKind) []ProxySettings {
+	return t.Spec.Owners.FindOwner(name, kind).ProxyOperations
+}

api/v1beta1/tenant_labels.go

@@ -0,0 +1,31 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	"fmt"
+
+	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
+	rbacv1 "k8s.io/api/rbac/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+func GetTypeLabel(t runtime.Object) (label string, err error) {
+	switch v := t.(type) {
+	case *Tenant:
+		return "capsule.clastix.io/tenant", nil
+	case *corev1.LimitRange:
+		return "capsule.clastix.io/limit-range", nil
+	case *networkingv1.NetworkPolicy:
+		return "capsule.clastix.io/network-policy", nil
+	case *corev1.ResourceQuota:
+		return "capsule.clastix.io/resource-quota", nil
+	case *rbacv1.RoleBinding:
+		return "capsule.clastix.io/role-binding", nil
+	default:
+		err = fmt.Errorf("type %T is not mapped as Capsule label recognized", v)
+	}
+	return
+}

api/v1beta1/tenant_status.go

@@ -0,0 +1,23 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+// +kubebuilder:validation:Enum=Cordoned;Active
+type tenantState string
+
+const (
+	TenantStateActive   tenantState = "Active"
+	TenantStateCordoned tenantState = "Cordoned"
+)
+
+// Returns the observed state of the Tenant
+type TenantStatus struct {
+	//+kubebuilder:default=Active
+	// The operational state of the Tenant. Possible values are "Active", "Cordoned".
+	State tenantState `json:"state"`
+	// How many namespaces are assigned to the Tenant.
+	Size uint `json:"size"`
+	// List of namespaces assigned to the Tenant.
+	Namespaces []string `json:"namespaces,omitempty"`
+}

api/v1beta1/tenant_types.go

@@ -0,0 +1,72 @@
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+package v1beta1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// TenantSpec defines the desired state of Tenant
+type TenantSpec struct {
+	// Specifies the owners of the Tenant. Mandatory.
+	Owners OwnerListSpec `json:"owners"`
+	// Specifies options for the Namespaces, such as additional metadata or maximum number of namespaces allowed for that Tenant. Once the namespace quota assigned to the Tenant has been reached, the Tenant owner cannot create further namespaces. Optional.
+	NamespaceOptions *NamespaceOptions `json:"namespaceOptions,omitempty"`
+	// Specifies options for the Service, such as additional metadata or block of certain type of Services. Optional.
+	ServiceOptions *ServiceOptions `json:"serviceOptions,omitempty"`
+	// Specifies the allowed StorageClasses assigned to the Tenant. Capsule assures that all PersistentVolumeClaim resources created in the Tenant can use only one of the allowed StorageClasses. Optional.
+	StorageClasses *AllowedListSpec `json:"storageClasses,omitempty"`
+	// Specifies options for the Ingress resources, such as allowed hostnames and IngressClass. Optional.
+	IngressOptions IngressOptions `json:"ingressOptions,omitempty"`
+	// Specifies the trusted Image Registries assigned to the Tenant. Capsule assures that all Pods resources created in the Tenant can use only one of the allowed trusted registries. Optional.
+	ContainerRegistries *AllowedListSpec `json:"containerRegistries,omitempty"`
+	// Specifies the label to control the placement of pods on a given pool of worker nodes. All namesapces created within the Tenant will have the node selector annotation. This annotation tells the Kubernetes scheduler to place pods on the nodes having the selector label. Optional.
+	NodeSelector map[string]string `json:"nodeSelector,omitempty"`
+	// Specifies the NetworkPolicies assigned to the Tenant. The assigned NetworkPolicies are inherited by any namespace created in the Tenant. Optional.
+	NetworkPolicies *NetworkPolicySpec `json:"networkPolicies,omitempty"`
+	// Specifies the NetworkPolicies assigned to the Tenant. The assigned NetworkPolicies are inherited by any namespace created in the Tenant. Optional.
+	LimitRanges *LimitRangesSpec `json:"limitRanges,omitempty"`
+	// Specifies a list of ResourceQuota resources assigned to the Tenant. The assigned values are inherited by any namespace created in the Tenant. The Capsule operator aggregates ResourceQuota at Tenant level, so that the hard quota is never crossed for the given Tenant. This permits the Tenant owner to consume resources in the Tenant regardless of the namespace. Optional.
+	ResourceQuota *ResourceQuotaSpec `json:"resourceQuotas,omitempty"`
+	// Specifies additional RoleBindings assigned to the Tenant. Capsule will ensure that all namespaces in the Tenant always contain the RoleBinding for the given ClusterRole. Optional.
+	AdditionalRoleBindings []AdditionalRoleBindingsSpec `json:"additionalRoleBindings,omitempty"`
+	// Specify the allowed values for the imagePullPolicies option in Pod resources. Capsule assures that all Pod resources created in the Tenant can use only one of the allowed policy. Optional.
+	ImagePullPolicies []ImagePullPolicySpec `json:"imagePullPolicies,omitempty"`
+	// Specifies the allowed IngressClasses assigned to the Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed IngressClasses. Optional.
+	PriorityClasses *AllowedListSpec `json:"priorityClasses,omitempty"`
+}
+
+//+kubebuilder:object:root=true
+//+kubebuilder:subresource:status
+//+kubebuilder:storageversion
+// +kubebuilder:resource:scope=Cluster,shortName=tnt
+// +kubebuilder:printcolumn:name="State",type="string",JSONPath=".status.state",description="The actual state of the Tenant"
+// +kubebuilder:printcolumn:name="Namespace quota",type="integer",JSONPath=".spec.namespaceOptions.quota",description="The max amount of Namespaces can be created"
+// +kubebuilder:printcolumn:name="Namespace count",type="integer",JSONPath=".status.size",description="The total amount of Namespaces in use"
+// +kubebuilder:printcolumn:name="Node selector",type="string",JSONPath=".spec.nodeSelector",description="Node Selector applied to Pods"
+// +kubebuilder:printcolumn:name="Age",type="date",JSONPath=".metadata.creationTimestamp",description="Age"
+
+// Tenant is the Schema for the tenants API
+type Tenant struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   TenantSpec   `json:"spec,omitempty"`
+	Status TenantStatus `json:"status,omitempty"`
+}
+
+func (t *Tenant) Hub() {}
+
+//+kubebuilder:object:root=true
+
+// TenantList contains a list of Tenant
+type TenantList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []Tenant `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&Tenant{}, &TenantList{})
+}

api/v1beta1/zz_generated.deepcopy.go

@@ -0,0 +1,520 @@
+// +build !ignore_autogenerated
+
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
+
+// Code generated by controller-gen. DO NOT EDIT.
+
+package v1beta1
+
+import (
+	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
+	"k8s.io/api/rbac/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AdditionalMetadataSpec) DeepCopyInto(out *AdditionalMetadataSpec) {
+	*out = *in
+	if in.Labels != nil {
+		in, out := &in.Labels, &out.Labels
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.Annotations != nil {
+		in, out := &in.Annotations, &out.Annotations
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalMetadataSpec.
+func (in *AdditionalMetadataSpec) DeepCopy() *AdditionalMetadataSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(AdditionalMetadataSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AdditionalRoleBindingsSpec) DeepCopyInto(out *AdditionalRoleBindingsSpec) {
+	*out = *in
+	if in.Subjects != nil {
+		in, out := &in.Subjects, &out.Subjects
+		*out = make([]v1.Subject, len(*in))
+		copy(*out, *in)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AdditionalRoleBindingsSpec.
+func (in *AdditionalRoleBindingsSpec) DeepCopy() *AdditionalRoleBindingsSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(AdditionalRoleBindingsSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AllowedListSpec) DeepCopyInto(out *AllowedListSpec) {
+	*out = *in
+	if in.Exact != nil {
+		in, out := &in.Exact, &out.Exact
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AllowedListSpec.
+func (in *AllowedListSpec) DeepCopy() *AllowedListSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(AllowedListSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AllowedServices) DeepCopyInto(out *AllowedServices) {
+	*out = *in
+	if in.NodePort != nil {
+		in, out := &in.NodePort, &out.NodePort
+		*out = new(bool)
+		**out = **in
+	}
+	if in.ExternalName != nil {
+		in, out := &in.ExternalName, &out.ExternalName
+		*out = new(bool)
+		**out = **in
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AllowedServices.
+func (in *AllowedServices) DeepCopy() *AllowedServices {
+	if in == nil {
+		return nil
+	}
+	out := new(AllowedServices)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in ByKindAndName) DeepCopyInto(out *ByKindAndName) {
+	{
+		in := &in
+		*out = make(ByKindAndName, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ByKindAndName.
+func (in ByKindAndName) DeepCopy() ByKindAndName {
+	if in == nil {
+		return nil
+	}
+	out := new(ByKindAndName)
+	in.DeepCopyInto(out)
+	return *out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ExternalServiceIPsSpec) DeepCopyInto(out *ExternalServiceIPsSpec) {
+	*out = *in
+	if in.Allowed != nil {
+		in, out := &in.Allowed, &out.Allowed
+		*out = make([]AllowedIP, len(*in))
+		copy(*out, *in)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ExternalServiceIPsSpec.
+func (in *ExternalServiceIPsSpec) DeepCopy() *ExternalServiceIPsSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(ExternalServiceIPsSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *IngressOptions) DeepCopyInto(out *IngressOptions) {
+	*out = *in
+	if in.AllowedClasses != nil {
+		in, out := &in.AllowedClasses, &out.AllowedClasses
+		*out = new(AllowedListSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.AllowedHostnames != nil {
+		in, out := &in.AllowedHostnames, &out.AllowedHostnames
+		*out = new(AllowedListSpec)
+		(*in).DeepCopyInto(*out)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new IngressOptions.
+func (in *IngressOptions) DeepCopy() *IngressOptions {
+	if in == nil {
+		return nil
+	}
+	out := new(IngressOptions)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *LimitRangesSpec) DeepCopyInto(out *LimitRangesSpec) {
+	*out = *in
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]corev1.LimitRangeSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new LimitRangesSpec.
+func (in *LimitRangesSpec) DeepCopy() *LimitRangesSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(LimitRangesSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NamespaceOptions) DeepCopyInto(out *NamespaceOptions) {
+	*out = *in
+	if in.Quota != nil {
+		in, out := &in.Quota, &out.Quota
+		*out = new(int32)
+		**out = **in
+	}
+	if in.AdditionalMetadata != nil {
+		in, out := &in.AdditionalMetadata, &out.AdditionalMetadata
+		*out = new(AdditionalMetadataSpec)
+		(*in).DeepCopyInto(*out)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NamespaceOptions.
+func (in *NamespaceOptions) DeepCopy() *NamespaceOptions {
+	if in == nil {
+		return nil
+	}
+	out := new(NamespaceOptions)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *NetworkPolicySpec) DeepCopyInto(out *NetworkPolicySpec) {
+	*out = *in
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]networkingv1.NetworkPolicySpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new NetworkPolicySpec.
+func (in *NetworkPolicySpec) DeepCopy() *NetworkPolicySpec {
+	if in == nil {
+		return nil
+	}
+	out := new(NetworkPolicySpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in OwnerListSpec) DeepCopyInto(out *OwnerListSpec) {
+	{
+		in := &in
+		*out = make(OwnerListSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OwnerListSpec.
+func (in OwnerListSpec) DeepCopy() OwnerListSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(OwnerListSpec)
+	in.DeepCopyInto(out)
+	return *out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *OwnerSpec) DeepCopyInto(out *OwnerSpec) {
+	*out = *in
+	if in.ProxyOperations != nil {
+		in, out := &in.ProxyOperations, &out.ProxyOperations
+		*out = make([]ProxySettings, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new OwnerSpec.
+func (in *OwnerSpec) DeepCopy() *OwnerSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(OwnerSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ProxySettings) DeepCopyInto(out *ProxySettings) {
+	*out = *in
+	if in.Operations != nil {
+		in, out := &in.Operations, &out.Operations
+		*out = make([]ProxyOperation, len(*in))
+		copy(*out, *in)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ProxySettings.
+func (in *ProxySettings) DeepCopy() *ProxySettings {
+	if in == nil {
+		return nil
+	}
+	out := new(ProxySettings)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ResourceQuotaSpec) DeepCopyInto(out *ResourceQuotaSpec) {
+	*out = *in
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]corev1.ResourceQuotaSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ResourceQuotaSpec.
+func (in *ResourceQuotaSpec) DeepCopy() *ResourceQuotaSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(ResourceQuotaSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ServiceOptions) DeepCopyInto(out *ServiceOptions) {
+	*out = *in
+	if in.AdditionalMetadata != nil {
+		in, out := &in.AdditionalMetadata, &out.AdditionalMetadata
+		*out = new(AdditionalMetadataSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.AllowedServices != nil {
+		in, out := &in.AllowedServices, &out.AllowedServices
+		*out = new(AllowedServices)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ExternalServiceIPs != nil {
+		in, out := &in.ExternalServiceIPs, &out.ExternalServiceIPs
+		*out = new(ExternalServiceIPsSpec)
+		(*in).DeepCopyInto(*out)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ServiceOptions.
+func (in *ServiceOptions) DeepCopy() *ServiceOptions {
+	if in == nil {
+		return nil
+	}
+	out := new(ServiceOptions)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *Tenant) DeepCopyInto(out *Tenant) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
+	in.Spec.DeepCopyInto(&out.Spec)
+	in.Status.DeepCopyInto(&out.Status)
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new Tenant.
+func (in *Tenant) DeepCopy() *Tenant {
+	if in == nil {
+		return nil
+	}
+	out := new(Tenant)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *Tenant) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *TenantList) DeepCopyInto(out *TenantList) {
+	*out = *in
+	out.TypeMeta = in.TypeMeta
+	in.ListMeta.DeepCopyInto(&out.ListMeta)
+	if in.Items != nil {
+		in, out := &in.Items, &out.Items
+		*out = make([]Tenant, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TenantList.
+func (in *TenantList) DeepCopy() *TenantList {
+	if in == nil {
+		return nil
+	}
+	out := new(TenantList)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyObject is an autogenerated deepcopy function, copying the receiver, creating a new runtime.Object.
+func (in *TenantList) DeepCopyObject() runtime.Object {
+	if c := in.DeepCopy(); c != nil {
+		return c
+	}
+	return nil
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *TenantSpec) DeepCopyInto(out *TenantSpec) {
+	*out = *in
+	if in.Owners != nil {
+		in, out := &in.Owners, &out.Owners
+		*out = make(OwnerListSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	if in.NamespaceOptions != nil {
+		in, out := &in.NamespaceOptions, &out.NamespaceOptions
+		*out = new(NamespaceOptions)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ServiceOptions != nil {
+		in, out := &in.ServiceOptions, &out.ServiceOptions
+		*out = new(ServiceOptions)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.StorageClasses != nil {
+		in, out := &in.StorageClasses, &out.StorageClasses
+		*out = new(AllowedListSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	in.IngressOptions.DeepCopyInto(&out.IngressOptions)
+	if in.ContainerRegistries != nil {
+		in, out := &in.ContainerRegistries, &out.ContainerRegistries
+		*out = new(AllowedListSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.NodeSelector != nil {
+		in, out := &in.NodeSelector, &out.NodeSelector
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
+	if in.NetworkPolicies != nil {
+		in, out := &in.NetworkPolicies, &out.NetworkPolicies
+		*out = new(NetworkPolicySpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.LimitRanges != nil {
+		in, out := &in.LimitRanges, &out.LimitRanges
+		*out = new(LimitRangesSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.ResourceQuota != nil {
+		in, out := &in.ResourceQuota, &out.ResourceQuota
+		*out = new(ResourceQuotaSpec)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.AdditionalRoleBindings != nil {
+		in, out := &in.AdditionalRoleBindings, &out.AdditionalRoleBindings
+		*out = make([]AdditionalRoleBindingsSpec, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	if in.ImagePullPolicies != nil {
+		in, out := &in.ImagePullPolicies, &out.ImagePullPolicies
+		*out = make([]ImagePullPolicySpec, len(*in))
+		copy(*out, *in)
+	}
+	if in.PriorityClasses != nil {
+		in, out := &in.PriorityClasses, &out.PriorityClasses
+		*out = new(AllowedListSpec)
+		(*in).DeepCopyInto(*out)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TenantSpec.
+func (in *TenantSpec) DeepCopy() *TenantSpec {
+	if in == nil {
+		return nil
+	}
+	out := new(TenantSpec)
+	in.DeepCopyInto(out)
+	return out
+}
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *TenantStatus) DeepCopyInto(out *TenantStatus) {
+	*out = *in
+	if in.Namespaces != nil {
+		in, out := &in.Namespaces, &out.Namespaces
+		*out = make([]string, len(*in))
+		copy(*out, *in)
+	}
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TenantStatus.
+func (in *TenantStatus) DeepCopy() *TenantStatus {
+	if in == nil {
+		return nil
+	}
+	out := new(TenantStatus)
+	in.DeepCopyInto(out)
+	return out
+}

charts/capsule/README.md

@@ -24,19 +24,23 @@ The Capsule Operator Chart can be used to instantly deploy the Capsule Operator
 
         $ helm repo add clastix https://clastix.github.io/charts
 
-2. Install the Chart:
+2. Create the Namespace:
+
+        $ kubectl create namespace capsule-system
+
+3. Install the Chart:
 
         $ helm install capsule clastix/capsule -n capsule-system
 
-3. Show the status:
+4. Show the status:
 
         $ helm status capsule -n capsule-system
 
-4. Upgrade the Chart
+5. Upgrade the Chart
 
         $ helm upgrade capsule clastix/capsule -n capsule-system
 
-5. Uninstall the Chart
+6. Uninstall the Chart
 
         $ helm uninstall capsule -n capsule-system
 
@@ -60,12 +64,11 @@ Here the values you can override:
 
 Parameter | Description | Default
 --- | --- | ---
+`manager.hostNetwork` | Specifies if the container should be started in `hostNetwork` mode. | `false` 
 `manager.options.logLevel` | Set the log verbosity of the controller with a value from 1 to 10.| `4`
 `manager.options.forceTenantPrefix` | Boolean, enforces the Tenant owner, during Namespace creation, to name it using the selected Tenant name as prefix, separated by a dash | `false`
 `manager.options.capsuleUserGroup` | Override the Capsule user group | `capsule.clastix.io`
 `manager.options.protectedNamespaceRegex` | If specified, disallows creation of namespaces matching the passed regexp | `null`
-`manager.options.allowIngressHostnameCollision` | Allow the Ingress hostname collision at Ingress resource level across all the Tenants | `true`
-`manager.options.allowTenantIngressHostnamesCollision` | Skip the validation check at Tenant level for colliding Ingress hostnames | `false`
 `manager.image.repository` | Set the image repository of the controller. | `quay.io/clastix/capsule`
 `manager.image.tag` | Overrides the image tag whose default is the chart. `appVersion` | `null`
 `manager.image.pullPolicy` | Set the image pull policy. | `IfNotPresent`
@@ -88,6 +91,9 @@ Parameter | Description | Default
 `replicaCount` | Set the replica count for Capsule pod. | `1`
 `affinity` | Set affinity rules for the Capsule pod. | `{}`
 `podSecurityPolicy.enabled` | Specify if a Pod Security Policy must be created. | `false`
+`serviceMonitor.enabled` | Specify if a Service Monitor must be created. | `false`
+`serviceMonitor.serviceAccount.name` | Specify Service Account name for metrics scrape. | `capsule`
+`serviceMonitor.serviceAccount.namespace` | Specify Service Account namespace for metrics scrape. | `capsule-system`
 
 ## Created resources
 
@@ -107,8 +113,10 @@ This Helm Chart cretes the following Kubernetes resources in the release namespa
 And optionally, depending on the values set:
 
 * Capsule ServiceAccount
+* Capsule Service Monitor
 * PodSecurityPolicy
 * RBAC ClusterRole and RoleBinding for pod security policy
+* RBAC Role and Rolebinding for metrics scrape
 
 ## Notes on installing Custom Resource Definitions with Helm3
 

charts/capsule/crds/capsuleconfiguration-crd.yaml

@@ -30,14 +30,8 @@ spec:
             spec:
               description: CapsuleConfigurationSpec defines the Capsule configuration
               properties:
-                allowIngressHostnameCollision:
-                  default: true
-                  description: Allow the collision of Ingress resource hostnames across all the Tenants.
-                  type: boolean
-                allowTenantIngressHostnamesCollision:
-                  description: "When defining the exact match for allowed Ingress hostnames at Tenant level, a collision is not allowed. Toggling this, Capsule will not check if a hostname collision is in place, allowing the creation of two or more Tenant resources although sharing the same allowed hostname(s). \n The JSON path of the resource is: /spec/ingressHostnames/allowed"
-                  type: boolean
                 forceTenantPrefix:
+                  default: false
                   description: Enforces the Tenant owner, during Namespace creation, to name it using the selected Tenant name as prefix, separated by a dash. This is useful to avoid Namespace name collision in a public CaaS environment.
                   type: boolean
                 protectedNamespaceRegex:

charts/capsule/templates/configuration-default.yaml

@@ -9,5 +9,3 @@ spec:
     - {{ . }}
 {{- end}}
   protectedNamespaceRegex: {{ .Values.manager.options.protectedNamespaceRegex | quote }}
-  allowTenantIngressHostnamesCollision: {{ .Values.manager.options.allowIngressHostnameCollision }}
-  allowIngressHostnameCollision: {{ .Values.manager.options.allowTenantIngressHostnamesCollision }}

charts/capsule/templates/deployment.yaml

@@ -23,6 +23,9 @@ spec:
         {{- toYaml . | nindent 8 }}
       {{- end }}
       serviceAccountName: {{ include "capsule.serviceAccountName" . }}
+      {{- if .Values.manager.hostNetwork }}
+      hostNetwork: true
+      {{- end }}
       priorityClassName: {{ .Values.priorityClassName }}
       {{- with .Values.nodeSelector }}
       nodeSelector:

charts/capsule/templates/metrics-rbac.yaml

@@ -0,0 +1,42 @@
+{{- if .Values.serviceMonitor.enabled }}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  labels:
+    {{- include "capsule.labels" . | nindent 4 }}
+    {{- if .Values.serviceMonitor.labels }}
+    {{- toYaml .Values.serviceMonitor.labels | nindent 4 }}
+    {{- end }}
+  name: {{ include "capsule.fullname" . }}-metrics-role
+  namespace: {{ .Values.serviceMonitor.namespace | default .Release.Namespace }}
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - services
+  - endpoints
+  - pods
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  labels:
+    {{- include "capsule.labels" . | nindent 4 }}
+    {{- if .Values.serviceMonitor.labels }}
+    {{- toYaml .Values.serviceMonitor.labels | nindent 4 }}
+    {{- end }}
+  name: {{ include "capsule.fullname" . }}-metrics-rolebinding
+  namespace: {{ .Values.serviceMonitor.namespace | default .Release.Namespace }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ include "capsule.fullname" . }}-metrics-role
+subjects:
+- kind: ServiceAccount
+  name: {{ .Values.serviceMonitor.serviceAccount.name }}
+  namespace: {{ .Values.serviceMonitor.serviceAccount.namespace | default .Release.Namespace }}
+{{- end }}

charts/capsule/templates/mutatingwebhookconfiguration.yaml

@@ -6,29 +6,30 @@ metadata:
     {{- include "capsule.labels" . | nindent 4 }}
 webhooks:
 - admissionReviewVersions:
-  - v1beta1
+    - v1
+    - v1beta1
   clientConfig:
     caBundle: Cg==
     service:
       name: {{ include "capsule.fullname" . }}-webhook-service
       namespace: {{ .Release.Namespace }}
-      path: /mutate-v1-namespace-owner-reference
+      path: /namespace-owner-reference
       port: 443
   failurePolicy: Fail
-  matchPolicy: Exact
+  matchPolicy: Equivalent
   name: owner.namespace.capsule.clastix.io
   namespaceSelector: {}
   objectSelector: {}
   reinvocationPolicy: Never
   rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - namespaces
-    scope: '*'
+    - apiGroups:
+      - ""
+      apiVersions:
+      - v1
+      operations:
+      - CREATE
+      resources:
+      - namespaces
+      scope: '*'
   sideEffects: NoneOnDryRun
   timeoutSeconds: {{ .Values.mutatingWebhooksTimeoutSeconds }}

charts/capsule/templates/servicemonitor.yaml

@@ -0,0 +1,23 @@
+{{- if .Values.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "capsule.fullname" . }}-monitor
+  namespace: {{ .Values.serviceMonitor.namespace | default .Release.Namespace }}
+  labels:
+    {{- include "capsule.labels" . | nindent 4 }}
+    {{- if .Values.serviceMonitor.labels }}
+    {{- toYaml .Values.serviceMonitor.labels | nindent 4 }}
+    {{- end }}
+spec:
+  endpoints:
+  - interval: 15s
+    port: metrics
+    path: /metrics
+  jobLabel: app.kubernetes.io/name
+  selector:
+    matchLabels: {{ include "capsule.labels" . | nindent 6 }}
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+{{- end }}

charts/capsule/templates/validatingwebhookconfiguration.yaml

@@ -6,133 +6,143 @@ metadata:
     {{- include "capsule.labels" . | nindent 4 }}
 webhooks:
 - admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-ingress
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: ingress-v1beta1.capsule.clastix.io
-  namespaceSelector:
-    matchExpressions:
-    - key: capsule.clastix.io/tenant
-      operator: Exists
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - networking.k8s.io
-    - extensions
-    apiVersions:
-    - v1beta1
-    operations:
-    - CREATE
-    - UPDATE
-    resources:
-    - ingresses
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-ingress
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: ingress-v1.capsule.clastix.io
-  namespaceSelector:
-    matchExpressions:
-    - key: capsule.clastix.io/tenant
-      operator: Exists
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - networking.k8s.io
-    apiVersions:
     - v1
-    operations:
-    - CREATE
-    - UPDATE
-    resources:
-    - ingresses
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
-  - v1beta1
+    - v1beta1
   clientConfig:
     caBundle: Cg==
     service:
       name: {{ include "capsule.fullname" . }}-webhook-service
       namespace: {{ .Release.Namespace }}
-      path: /validate-v1-namespace-quota
+      path: /cordoning
       port: 443
   failurePolicy: Fail
-  matchPolicy: Exact
-  name: quota.namespace.capsule.clastix.io
+  matchPolicy: Equivalent
+  name: cordoning.tenant.capsule.clastix.io
+  namespaceSelector:
+    matchExpressions:
+      - key: capsule.clastix.io/tenant
+        operator: Exists
+  objectSelector: {}
+  rules:
+    - apiGroups:
+        - '*'
+      apiVersions:
+        - '*'
+      operations:
+        - CREATE
+        - UPDATE
+        - DELETE
+      resources:
+        - '*'
+      scope: Namespaced
+  sideEffects: None
+  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
+- admissionReviewVersions:
+    - v1
+    - v1beta1
+  clientConfig:
+    caBundle: Cg==
+    service:
+      name: {{ include "capsule.fullname" . }}-webhook-service
+      namespace: {{ .Release.Namespace }}
+      path: /ingresses
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Equivalent
+  name: ingress.capsule.clastix.io
+  namespaceSelector:
+    matchExpressions:
+      - key: capsule.clastix.io/tenant
+        operator: Exists
+  objectSelector: {}
+  rules:
+    - apiGroups:
+        - networking.k8s.io
+        - extensions
+      apiVersions:
+        - v1
+        - v1beta1
+      operations:
+        - CREATE
+        - UPDATE
+      resources:
+        - ingresses
+      scope: Namespaced
+  sideEffects: None
+  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
+- admissionReviewVersions:
+    - v1
+    - v1beta1
+  clientConfig:
+    caBundle: Cg==
+    service:
+      name: {{ include "capsule.fullname" . }}-webhook-service
+      namespace: {{ .Release.Namespace }}
+      path: /namespaces
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Equivalent
+  name: namespaces.capsule.clastix.io
   namespaceSelector: {}
   objectSelector: {}
   rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - namespaces
-    scope: '*'
-  sideEffects: NoneOnDryRun
+    - apiGroups:
+        - ""
+      apiVersions:
+        - v1
+      operations:
+        - CREATE
+        - UPDATE
+        - DELETE
+      resources:
+        - namespaces
+      scope: '*'
+  sideEffects: None
   timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
 - admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-v1-network-policy
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: validating.network-policy.capsule.clastix.io
-  namespaceSelector:
-    matchExpressions:
-    - key: capsule.clastix.io/tenant
-      operator: Exists
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - networking.k8s.io
-    apiVersions:
     - v1
-    operations:
-    - CREATE
-    - UPDATE
-    - DELETE
-    resources:
-    - networkpolicies
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
     - v1beta1
   clientConfig:
     caBundle: Cg==
     service:
       name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: system
-      path: /validating-v1-podpriority
-  failurePolicy: Ignore
-  name: podpriority.capsule.clastix.io
+      namespace: {{ .Release.Namespace }}
+      path: /networkpolicies
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Equivalent
+  name: networkpolicies.capsule.clastix.io
+  namespaceSelector:
+    matchExpressions:
+      - key: capsule.clastix.io/tenant
+        operator: Exists
+  objectSelector: {}
+  rules:
+    - apiGroups:
+        - networking.k8s.io
+      apiVersions:
+        - v1
+      operations:
+        - UPDATE
+        - DELETE
+      resources:
+        - networkpolicies
+      scope: Namespaced
+  sideEffects: None
+  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
+- admissionReviewVersions:
+    - v1
+    - v1beta1
+  clientConfig:
+    caBundle: Cg==
+    service:
+      name: {{ include "capsule.fullname" . }}-webhook-service
+      namespace: {{ .Release.Namespace }}
+      path: /pods
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Exact
+  name: pods.capsule.clastix.io
   namespaceSelector:
     matchExpressions:
       - key: capsule.clastix.io/tenant
@@ -147,146 +157,94 @@ webhooks:
         - CREATE
       resources:
         - pods
-  sideEffects: NoneOnDryRun
+      scope: Namespaced
+  sideEffects: None
   timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
 - admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-v1-pvc
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: pvc.capsule.clastix.io
-  namespaceSelector:
-    matchExpressions:
-    - key: capsule.clastix.io/tenant
-      operator: Exists
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - ""
-    apiVersions:
     - v1
-    operations:
-    - CREATE
-    resources:
-    - persistentvolumeclaims
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-v1-tenant
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: tenant.capsule.clastix.io
-  namespaceSelector: {}
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - capsule.clastix.io
-    apiVersions:
-    - v1alpha1
-    operations:
-    - CREATE
-    - UPDATE
-    resources:
-    - tenants
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-v1-namespace-tenant-prefix
-      port: 443
-  failurePolicy: Fail
-  matchPolicy: Exact
-  name: prefix.namespace.capsule.clastix.io
-  namespaceSelector: {}
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - namespaces
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
-  - v1beta1
-  clientConfig:
-    caBundle: Cg==
-    service:
-      name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-v1-registry
-      port: 443
-  failurePolicy: Ignore
-  matchPolicy: Exact
-  name: pod.capsule.clastix.io
-  namespaceSelector:
-    matchExpressions:
-    - key: capsule.clastix.io/tenant
-      operator: Exists
-  objectSelector: {}
-  rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - pods
-    scope: '*'
-  sideEffects: NoneOnDryRun
-  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
-- admissionReviewVersions:
     - v1beta1
   clientConfig:
     caBundle: Cg==
     service:
       name: {{ include "capsule.fullname" . }}-webhook-service
-      namespace: {{ .Release.Namespace }}
-      path: /validating-external-service-ips
-      port: 443
+      namespace: capsule-system
+      path: /persistentvolumeclaims
   failurePolicy: Fail
-  matchPolicy: Exact
-  name: validating-external-service-ips.capsule.clastix.io
+  name: pvc.capsule.clastix.io
   namespaceSelector:
     matchExpressions:
       - key: capsule.clastix.io/tenant
         operator: Exists
   objectSelector: {}
   rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    - UPDATE
-    resources:
-    - services
-    scope: '*'
-  sideEffects: NoneOnDryRun
+    - apiGroups:
+        - ""
+      apiVersions:
+        - v1
+      operations:
+        - CREATE
+      resources:
+        - persistentvolumeclaims
+      scope: Namespaced
+  sideEffects: None
+  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
+- admissionReviewVersions:
+    - v1
+    - v1beta1
+  clientConfig:
+    caBundle: Cg==
+    service:
+      name: {{ include "capsule.fullname" . }}-webhook-service
+      namespace: {{ .Release.Namespace }}
+      path: /services
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Exact
+  name: services.capsule.clastix.io
+  namespaceSelector:
+    matchExpressions:
+      - key: capsule.clastix.io/tenant
+        operator: Exists
+  objectSelector: {}
+  rules:
+    - apiGroups:
+        - ""
+      apiVersions:
+        - v1
+      operations:
+        - CREATE
+        - UPDATE
+      resources:
+        - services
+      scope: Namespaced
+  sideEffects: None
+  timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}
+- admissionReviewVersions:
+    - v1
+    - v1beta1
+  clientConfig:
+    caBundle: Cg==
+    service:
+      name: {{ include "capsule.fullname" . }}-webhook-service
+      namespace: {{ .Release.Namespace }}
+      path: /tenants
+      port: 443
+  failurePolicy: Fail
+  matchPolicy: Exact
+  name: tenants.capsule.clastix.io
+  namespaceSelector: {}
+  objectSelector: {}
+  rules:
+    - apiGroups:
+        - capsule.clastix.io
+      apiVersions:
+        - v1beta1
+      operations:
+        - CREATE
+        - UPDATE
+        - DELETE
+      resources:
+        - tenants
+      scope: '*'
+  sideEffects: None
   timeoutSeconds: {{ .Values.validatingWebhooksTimeoutSeconds }}

charts/capsule/values.yaml

@@ -7,14 +7,20 @@ manager:
     repository: quay.io/clastix/capsule
     pullPolicy: IfNotPresent
     tag: ''
+
+  # Specifies if the container should be started in hostNetwork mode.
+  #
+  # Required for use in some managed kubernetes clusters (such as AWS EKS) with custom
+  # CNI (such as calico), because control-plane managed by AWS cannot communicate
+  # with pods' IP CIDR and admission webhooks are not working
+  hostNetwork: false
+
   # Additional Capsule options
   options:
     logLevel: '4'
     forceTenantPrefix: false
     capsuleUserGroups: ["capsule.clastix.io"]
     protectedNamespaceRegex: ""
-    allowIngressHostnameCollision: true
-    allowTenantIngressHostnamesCollision: false
   livenessProbe:
     httpGet:
       path: /healthz
@@ -33,9 +39,9 @@ manager:
       memory: 128Mi
 jobs:
   image:
-    repository: bitnami/kubectl
+    repository: quay.io/clastix/kubectl
     pullPolicy: IfNotPresent
-    tag: "1.18"
+    tag: "v1.20.7"
 mutatingWebhooksTimeoutSeconds: 30
 validatingWebhooksTimeoutSeconds: 30
 imagePullSecrets: []
@@ -56,3 +62,15 @@ replicaCount: 1
 affinity: {}
 podSecurityPolicy:
   enabled: false
+
+serviceMonitor:
+  enabled: false
+  # Install the ServiceMonitor into a different Namespace, as the monitoring stack one (default: the release one)
+  namespace:
+  # Assign additional labels according to Prometheus' serviceMonitorSelector matching labels
+  labels: {}
+  annotations: {}
+  matchLabels: {}
+  serviceAccount:
+    name: capsule
+    namespace: capsule-system

config/crd/bases/capsule.clastix.io_capsuleconfigurations.yaml

@@ -30,15 +30,8 @@ spec:
           metadata:
             type: object
           spec:
-            description: CapsuleConfigurationSpec defines the Capsule configuration nolint:maligned
+            description: CapsuleConfigurationSpec defines the Capsule configuration
             properties:
-              allowIngressHostnameCollision:
-                default: true
-                description: Allow the collision of Ingress resource hostnames across all the Tenants.
-                type: boolean
-              allowTenantIngressHostnamesCollision:
-                description: "When defining the exact match for allowed Ingress hostnames at Tenant level, a collision is not allowed. Toggling this, Capsule will not check if a hostname collision is in place, allowing the creation of two or more Tenant resources although sharing the same allowed hostname(s). \n The JSON path of the resource is: /spec/ingressHostnames/allowed"
-                type: boolean
               forceTenantPrefix:
                 default: false
                 description: Enforces the Tenant owner, during Namespace creation, to name it using the selected Tenant name as prefix, separated by a dash. This is useful to avoid Namespace name collision in a public CaaS environment.

config/crd/bases/capsule.clastix.io_tenants.yaml

@@ -222,11 +222,15 @@ spec:
                             items:
                               description: NetworkPolicyPort describes a port to allow traffic on
                               properties:
+                                endPort:
+                                  description: If set, indicates that the range of ports from port to endPort, inclusive, should be allowed by the policy. This field cannot be defined if the port field is not defined or if the port field is defined as a named (string) port. The endPort must be equal or greater than port. This feature is in Beta state and is enabled by default. It can be disabled using the Feature Gate "NetworkPolicyEndPort".
+                                  format: int32
+                                  type: integer
                                 port:
                                   anyOf:
                                   - type: integer
                                   - type: string
-                                  description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers.
+                                  description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers. If present, only traffic on the specified protocol AND port will be matched.
                                   x-kubernetes-int-or-string: true
                                 protocol:
                                   default: TCP
@@ -408,11 +412,15 @@ spec:
                             items:
                               description: NetworkPolicyPort describes a port to allow traffic on
                               properties:
+                                endPort:
+                                  description: If set, indicates that the range of ports from port to endPort, inclusive, should be allowed by the policy. This field cannot be defined if the port field is not defined or if the port field is defined as a named (string) port. The endPort must be equal or greater than port. This feature is in Beta state and is enabled by default. It can be disabled using the Feature Gate "NetworkPolicyEndPort".
+                                  format: int32
+                                  type: integer
                                 port:
                                   anyOf:
                                   - type: integer
                                   - type: string
-                                  description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers.
+                                  description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers. If present, only traffic on the specified protocol AND port will be matched.
                                   x-kubernetes-int-or-string: true
                                 protocol:
                                   default: TCP
@@ -453,9 +461,9 @@ spec:
                           type: object
                       type: object
                     policyTypes:
-                      description: List of rule types that the NetworkPolicy relates to. Valid options are "Ingress", "Egress", or "Ingress,Egress". If this field is not specified, it will default based on the existence of Ingress or Egress rules; policies that contain an Egress section are assumed to affect Egress, and all policies (whether or not they contain an Ingress section) are assumed to affect Ingress. If you want to write an egress-only policy, you must explicitly specify policyTypes [ "Egress" ]. Likewise, if you want to write a policy that specifies that no egress is allowed, you must specify a policyTypes value that include "Egress" (since such a policy would not include an Egress section and would otherwise default to just [ "Ingress" ]). This field is beta-level in 1.8
+                      description: List of rule types that the NetworkPolicy relates to. Valid options are ["Ingress"], ["Egress"], or ["Ingress", "Egress"]. If this field is not specified, it will default based on the existence of Ingress or Egress rules; policies that contain an Egress section are assumed to affect Egress, and all policies (whether or not they contain an Ingress section) are assumed to affect Ingress. If you want to write an egress-only policy, you must explicitly specify policyTypes [ "Egress" ]. Likewise, if you want to write a policy that specifies that no egress is allowed, you must specify a policyTypes value that include "Egress" (since such a policy would not include an Egress section and would otherwise default to just [ "Ingress" ]). This field is beta-level in 1.8
                       items:
-                        description: Policy Type string describes the NetworkPolicy type This type is beta-level in 1.8
+                        description: PolicyType string describes the NetworkPolicy type This type is beta-level in 1.8
                         type: string
                       type: array
                   required:
@@ -563,6 +571,678 @@ spec:
             type: object
         type: object
     served: true
+    storage: false
+    subresources:
+      status: {}
+  - additionalPrinterColumns:
+    - description: The actual state of the Tenant
+      jsonPath: .status.state
+      name: State
+      type: string
+    - description: The max amount of Namespaces can be created
+      jsonPath: .spec.namespaceOptions.quota
+      name: Namespace quota
+      type: integer
+    - description: The total amount of Namespaces in use
+      jsonPath: .status.size
+      name: Namespace count
+      type: integer
+    - description: Node Selector applied to Pods
+      jsonPath: .spec.nodeSelector
+      name: Node selector
+      type: string
+    - description: Age
+      jsonPath: .metadata.creationTimestamp
+      name: Age
+      type: date
+    name: v1beta1
+    schema:
+      openAPIV3Schema:
+        description: Tenant is the Schema for the tenants API
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: TenantSpec defines the desired state of Tenant
+            properties:
+              additionalRoleBindings:
+                description: Specifies additional RoleBindings assigned to the Tenant. Capsule will ensure that all namespaces in the Tenant always contain the RoleBinding for the given ClusterRole. Optional.
+                items:
+                  properties:
+                    clusterRoleName:
+                      type: string
+                    subjects:
+                      description: kubebuilder:validation:Minimum=1
+                      items:
+                        description: Subject contains a reference to the object or user identities a role binding applies to.  This can either hold a direct API object reference, or a value for non-objects such as user and group names.
+                        properties:
+                          apiGroup:
+                            description: APIGroup holds the API group of the referenced subject. Defaults to "" for ServiceAccount subjects. Defaults to "rbac.authorization.k8s.io" for User and Group subjects.
+                            type: string
+                          kind:
+                            description: Kind of object being referenced. Values defined by this API group are "User", "Group", and "ServiceAccount". If the Authorizer does not recognized the kind value, the Authorizer should report an error.
+                            type: string
+                          name:
+                            description: Name of the object being referenced.
+                            type: string
+                          namespace:
+                            description: Namespace of the referenced object.  If the object kind is non-namespace, such as "User" or "Group", and this value is not empty the Authorizer should report an error.
+                            type: string
+                        required:
+                        - kind
+                        - name
+                        type: object
+                      type: array
+                  required:
+                  - clusterRoleName
+                  - subjects
+                  type: object
+                type: array
+              containerRegistries:
+                description: Specifies the trusted Image Registries assigned to the Tenant. Capsule assures that all Pods resources created in the Tenant can use only one of the allowed trusted registries. Optional.
+                properties:
+                  allowed:
+                    items:
+                      type: string
+                    type: array
+                  allowedRegex:
+                    type: string
+                type: object
+              imagePullPolicies:
+                description: Specify the allowed values for the imagePullPolicies option in Pod resources. Capsule assures that all Pod resources created in the Tenant can use only one of the allowed policy. Optional.
+                items:
+                  enum:
+                  - Always
+                  - Never
+                  - IfNotPresent
+                  type: string
+                type: array
+              ingressOptions:
+                description: Specifies options for the Ingress resources, such as allowed hostnames and IngressClass. Optional.
+                properties:
+                  allowedClasses:
+                    description: Specifies the allowed IngressClasses assigned to the Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed IngressClasses. Optional.
+                    properties:
+                      allowed:
+                        items:
+                          type: string
+                        type: array
+                      allowedRegex:
+                        type: string
+                    type: object
+                  allowedHostnames:
+                    description: Specifies the allowed hostnames in Ingresses for the given Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed hostnames. Optional.
+                    properties:
+                      allowed:
+                        items:
+                          type: string
+                        type: array
+                      allowedRegex:
+                        type: string
+                    type: object
+                  hostnameCollisionScope:
+                    default: Disabled
+                    description: "Defines the scope of hostname collision check performed when Tenant Owners create Ingress with allowed hostnames. \n - Cluster: disallow the creation of an Ingress if the pair hostname and path is already used across the Namespaces managed by Capsule. \n - Tenant: disallow the creation of an Ingress if the pair hostname and path is already used across the Namespaces of the Tenant. \n - Namespace: disallow the creation of an Ingress if the pair hostname and path is already used in the Ingress Namespace. \n Optional."
+                    enum:
+                    - Cluster
+                    - Tenant
+                    - Namespace
+                    - Disabled
+                    type: string
+                type: object
+              limitRanges:
+                description: Specifies the NetworkPolicies assigned to the Tenant. The assigned NetworkPolicies are inherited by any namespace created in the Tenant. Optional.
+                properties:
+                  items:
+                    items:
+                      description: LimitRangeSpec defines a min/max usage limit for resources that match on kind.
+                      properties:
+                        limits:
+                          description: Limits is the list of LimitRangeItem objects that are enforced.
+                          items:
+                            description: LimitRangeItem defines a min/max usage limit for any resource that matches on kind.
+                            properties:
+                              default:
+                                additionalProperties:
+                                  anyOf:
+                                  - type: integer
+                                  - type: string
+                                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                                  x-kubernetes-int-or-string: true
+                                description: Default resource requirement limit value by resource name if resource limit is omitted.
+                                type: object
+                              defaultRequest:
+                                additionalProperties:
+                                  anyOf:
+                                  - type: integer
+                                  - type: string
+                                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                                  x-kubernetes-int-or-string: true
+                                description: DefaultRequest is the default resource requirement request value by resource name if resource request is omitted.
+                                type: object
+                              max:
+                                additionalProperties:
+                                  anyOf:
+                                  - type: integer
+                                  - type: string
+                                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                                  x-kubernetes-int-or-string: true
+                                description: Max usage constraints on this kind by resource name.
+                                type: object
+                              maxLimitRequestRatio:
+                                additionalProperties:
+                                  anyOf:
+                                  - type: integer
+                                  - type: string
+                                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                                  x-kubernetes-int-or-string: true
+                                description: MaxLimitRequestRatio if specified, the named resource must have a request and limit that are both non-zero where limit divided by request is less than or equal to the enumerated value; this represents the max burst for the named resource.
+                                type: object
+                              min:
+                                additionalProperties:
+                                  anyOf:
+                                  - type: integer
+                                  - type: string
+                                  pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                                  x-kubernetes-int-or-string: true
+                                description: Min usage constraints on this kind by resource name.
+                                type: object
+                              type:
+                                description: Type of resource that this limit applies to.
+                                type: string
+                            required:
+                            - type
+                            type: object
+                          type: array
+                      required:
+                      - limits
+                      type: object
+                    type: array
+                type: object
+              namespaceOptions:
+                description: Specifies options for the Namespaces, such as additional metadata or maximum number of namespaces allowed for that Tenant. Once the namespace quota assigned to the Tenant has been reached, the Tenant owner cannot create further namespaces. Optional.
+                properties:
+                  additionalMetadata:
+                    description: Specifies additional labels and annotations the Capsule operator places on any Namespace resource in the Tenant. Optional.
+                    properties:
+                      annotations:
+                        additionalProperties:
+                          type: string
+                        type: object
+                      labels:
+                        additionalProperties:
+                          type: string
+                        type: object
+                    type: object
+                  quota:
+                    description: Specifies the maximum number of namespaces allowed for that Tenant. Once the namespace quota assigned to the Tenant has been reached, the Tenant owner cannot create further namespaces. Optional.
+                    format: int32
+                    minimum: 1
+                    type: integer
+                type: object
+              networkPolicies:
+                description: Specifies the NetworkPolicies assigned to the Tenant. The assigned NetworkPolicies are inherited by any namespace created in the Tenant. Optional.
+                properties:
+                  items:
+                    items:
+                      description: NetworkPolicySpec provides the specification of a NetworkPolicy
+                      properties:
+                        egress:
+                          description: List of egress rules to be applied to the selected pods. Outgoing traffic is allowed if there are no NetworkPolicies selecting the pod (and cluster policy otherwise allows the traffic), OR if the traffic matches at least one egress rule across all of the NetworkPolicy objects whose podSelector matches the pod. If this field is empty then this NetworkPolicy limits all outgoing traffic (and serves solely to ensure that the pods it selects are isolated by default). This field is beta-level in 1.8
+                          items:
+                            description: NetworkPolicyEgressRule describes a particular set of traffic that is allowed out of pods matched by a NetworkPolicySpec's podSelector. The traffic must match both ports and to. This type is beta-level in 1.8
+                            properties:
+                              ports:
+                                description: List of destination ports for outgoing traffic. Each item in this list is combined using a logical OR. If this field is empty or missing, this rule matches all ports (traffic not restricted by port). If this field is present and contains at least one item, then this rule allows traffic only if the traffic matches at least one port in the list.
+                                items:
+                                  description: NetworkPolicyPort describes a port to allow traffic on
+                                  properties:
+                                    endPort:
+                                      description: If set, indicates that the range of ports from port to endPort, inclusive, should be allowed by the policy. This field cannot be defined if the port field is not defined or if the port field is defined as a named (string) port. The endPort must be equal or greater than port. This feature is in Beta state and is enabled by default. It can be disabled using the Feature Gate "NetworkPolicyEndPort".
+                                      format: int32
+                                      type: integer
+                                    port:
+                                      anyOf:
+                                      - type: integer
+                                      - type: string
+                                      description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers. If present, only traffic on the specified protocol AND port will be matched.
+                                      x-kubernetes-int-or-string: true
+                                    protocol:
+                                      default: TCP
+                                      description: The protocol (TCP, UDP, or SCTP) which traffic must match. If not specified, this field defaults to TCP.
+                                      type: string
+                                  type: object
+                                type: array
+                              to:
+                                description: List of destinations for outgoing traffic of pods selected for this rule. Items in this list are combined using a logical OR operation. If this field is empty or missing, this rule matches all destinations (traffic not restricted by destination). If this field is present and contains at least one item, this rule allows traffic only if the traffic matches at least one item in the to list.
+                                items:
+                                  description: NetworkPolicyPeer describes a peer to allow traffic to/from. Only certain combinations of fields are allowed
+                                  properties:
+                                    ipBlock:
+                                      description: IPBlock defines policy on a particular IPBlock. If this field is set then neither of the other fields can be.
+                                      properties:
+                                        cidr:
+                                          description: CIDR is a string representing the IP Block Valid examples are "192.168.1.1/24" or "2001:db9::/64"
+                                          type: string
+                                        except:
+                                          description: Except is a slice of CIDRs that should not be included within an IP Block Valid examples are "192.168.1.1/24" or "2001:db9::/64" Except values will be rejected if they are outside the CIDR range
+                                          items:
+                                            type: string
+                                          type: array
+                                      required:
+                                      - cidr
+                                      type: object
+                                    namespaceSelector:
+                                      description: "Selects Namespaces using cluster-scoped labels. This field follows standard label selector semantics; if present but empty, it selects all namespaces. \n If PodSelector is also set, then the NetworkPolicyPeer as a whole selects the Pods matching PodSelector in the Namespaces selected by NamespaceSelector. Otherwise it selects all Pods in the Namespaces selected by NamespaceSelector."
+                                      properties:
+                                        matchExpressions:
+                                          description: matchExpressions is a list of label selector requirements. The requirements are ANDed.
+                                          items:
+                                            description: A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
+                                            properties:
+                                              key:
+                                                description: key is the label key that the selector applies to.
+                                                type: string
+                                              operator:
+                                                description: operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
+                                                type: string
+                                              values:
+                                                description: values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                                items:
+                                                  type: string
+                                                type: array
+                                            required:
+                                            - key
+                                            - operator
+                                            type: object
+                                          type: array
+                                        matchLabels:
+                                          additionalProperties:
+                                            type: string
+                                          description: matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.
+                                          type: object
+                                      type: object
+                                    podSelector:
+                                      description: "This is a label selector which selects Pods. This field follows standard label selector semantics; if present but empty, it selects all pods. \n If NamespaceSelector is also set, then the NetworkPolicyPeer as a whole selects the Pods matching PodSelector in the Namespaces selected by NamespaceSelector. Otherwise it selects the Pods matching PodSelector in the policy's own Namespace."
+                                      properties:
+                                        matchExpressions:
+                                          description: matchExpressions is a list of label selector requirements. The requirements are ANDed.
+                                          items:
+                                            description: A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
+                                            properties:
+                                              key:
+                                                description: key is the label key that the selector applies to.
+                                                type: string
+                                              operator:
+                                                description: operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
+                                                type: string
+                                              values:
+                                                description: values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                                items:
+                                                  type: string
+                                                type: array
+                                            required:
+                                            - key
+                                            - operator
+                                            type: object
+                                          type: array
+                                        matchLabels:
+                                          additionalProperties:
+                                            type: string
+                                          description: matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.
+                                          type: object
+                                      type: object
+                                  type: object
+                                type: array
+                            type: object
+                          type: array
+                        ingress:
+                          description: List of ingress rules to be applied to the selected pods. Traffic is allowed to a pod if there are no NetworkPolicies selecting the pod (and cluster policy otherwise allows the traffic), OR if the traffic source is the pod's local node, OR if the traffic matches at least one ingress rule across all of the NetworkPolicy objects whose podSelector matches the pod. If this field is empty then this NetworkPolicy does not allow any traffic (and serves solely to ensure that the pods it selects are isolated by default)
+                          items:
+                            description: NetworkPolicyIngressRule describes a particular set of traffic that is allowed to the pods matched by a NetworkPolicySpec's podSelector. The traffic must match both ports and from.
+                            properties:
+                              from:
+                                description: List of sources which should be able to access the pods selected for this rule. Items in this list are combined using a logical OR operation. If this field is empty or missing, this rule matches all sources (traffic not restricted by source). If this field is present and contains at least one item, this rule allows traffic only if the traffic matches at least one item in the from list.
+                                items:
+                                  description: NetworkPolicyPeer describes a peer to allow traffic to/from. Only certain combinations of fields are allowed
+                                  properties:
+                                    ipBlock:
+                                      description: IPBlock defines policy on a particular IPBlock. If this field is set then neither of the other fields can be.
+                                      properties:
+                                        cidr:
+                                          description: CIDR is a string representing the IP Block Valid examples are "192.168.1.1/24" or "2001:db9::/64"
+                                          type: string
+                                        except:
+                                          description: Except is a slice of CIDRs that should not be included within an IP Block Valid examples are "192.168.1.1/24" or "2001:db9::/64" Except values will be rejected if they are outside the CIDR range
+                                          items:
+                                            type: string
+                                          type: array
+                                      required:
+                                      - cidr
+                                      type: object
+                                    namespaceSelector:
+                                      description: "Selects Namespaces using cluster-scoped labels. This field follows standard label selector semantics; if present but empty, it selects all namespaces. \n If PodSelector is also set, then the NetworkPolicyPeer as a whole selects the Pods matching PodSelector in the Namespaces selected by NamespaceSelector. Otherwise it selects all Pods in the Namespaces selected by NamespaceSelector."
+                                      properties:
+                                        matchExpressions:
+                                          description: matchExpressions is a list of label selector requirements. The requirements are ANDed.
+                                          items:
+                                            description: A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
+                                            properties:
+                                              key:
+                                                description: key is the label key that the selector applies to.
+                                                type: string
+                                              operator:
+                                                description: operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
+                                                type: string
+                                              values:
+                                                description: values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                                items:
+                                                  type: string
+                                                type: array
+                                            required:
+                                            - key
+                                            - operator
+                                            type: object
+                                          type: array
+                                        matchLabels:
+                                          additionalProperties:
+                                            type: string
+                                          description: matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.
+                                          type: object
+                                      type: object
+                                    podSelector:
+                                      description: "This is a label selector which selects Pods. This field follows standard label selector semantics; if present but empty, it selects all pods. \n If NamespaceSelector is also set, then the NetworkPolicyPeer as a whole selects the Pods matching PodSelector in the Namespaces selected by NamespaceSelector. Otherwise it selects the Pods matching PodSelector in the policy's own Namespace."
+                                      properties:
+                                        matchExpressions:
+                                          description: matchExpressions is a list of label selector requirements. The requirements are ANDed.
+                                          items:
+                                            description: A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
+                                            properties:
+                                              key:
+                                                description: key is the label key that the selector applies to.
+                                                type: string
+                                              operator:
+                                                description: operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
+                                                type: string
+                                              values:
+                                                description: values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                                items:
+                                                  type: string
+                                                type: array
+                                            required:
+                                            - key
+                                            - operator
+                                            type: object
+                                          type: array
+                                        matchLabels:
+                                          additionalProperties:
+                                            type: string
+                                          description: matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.
+                                          type: object
+                                      type: object
+                                  type: object
+                                type: array
+                              ports:
+                                description: List of ports which should be made accessible on the pods selected for this rule. Each item in this list is combined using a logical OR. If this field is empty or missing, this rule matches all ports (traffic not restricted by port). If this field is present and contains at least one item, then this rule allows traffic only if the traffic matches at least one port in the list.
+                                items:
+                                  description: NetworkPolicyPort describes a port to allow traffic on
+                                  properties:
+                                    endPort:
+                                      description: If set, indicates that the range of ports from port to endPort, inclusive, should be allowed by the policy. This field cannot be defined if the port field is not defined or if the port field is defined as a named (string) port. The endPort must be equal or greater than port. This feature is in Beta state and is enabled by default. It can be disabled using the Feature Gate "NetworkPolicyEndPort".
+                                      format: int32
+                                      type: integer
+                                    port:
+                                      anyOf:
+                                      - type: integer
+                                      - type: string
+                                      description: The port on the given protocol. This can either be a numerical or named port on a pod. If this field is not provided, this matches all port names and numbers. If present, only traffic on the specified protocol AND port will be matched.
+                                      x-kubernetes-int-or-string: true
+                                    protocol:
+                                      default: TCP
+                                      description: The protocol (TCP, UDP, or SCTP) which traffic must match. If not specified, this field defaults to TCP.
+                                      type: string
+                                  type: object
+                                type: array
+                            type: object
+                          type: array
+                        podSelector:
+                          description: Selects the pods to which this NetworkPolicy object applies. The array of ingress rules is applied to any pods selected by this field. Multiple network policies can select the same set of pods. In this case, the ingress rules for each are combined additively. This field is NOT optional and follows standard label selector semantics. An empty podSelector matches all pods in this namespace.
+                          properties:
+                            matchExpressions:
+                              description: matchExpressions is a list of label selector requirements. The requirements are ANDed.
+                              items:
+                                description: A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
+                                properties:
+                                  key:
+                                    description: key is the label key that the selector applies to.
+                                    type: string
+                                  operator:
+                                    description: operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
+                                    type: string
+                                  values:
+                                    description: values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                    items:
+                                      type: string
+                                    type: array
+                                required:
+                                - key
+                                - operator
+                                type: object
+                              type: array
+                            matchLabels:
+                              additionalProperties:
+                                type: string
+                              description: matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.
+                              type: object
+                          type: object
+                        policyTypes:
+                          description: List of rule types that the NetworkPolicy relates to. Valid options are ["Ingress"], ["Egress"], or ["Ingress", "Egress"]. If this field is not specified, it will default based on the existence of Ingress or Egress rules; policies that contain an Egress section are assumed to affect Egress, and all policies (whether or not they contain an Ingress section) are assumed to affect Ingress. If you want to write an egress-only policy, you must explicitly specify policyTypes [ "Egress" ]. Likewise, if you want to write a policy that specifies that no egress is allowed, you must specify a policyTypes value that include "Egress" (since such a policy would not include an Egress section and would otherwise default to just [ "Ingress" ]). This field is beta-level in 1.8
+                          items:
+                            description: PolicyType string describes the NetworkPolicy type This type is beta-level in 1.8
+                            type: string
+                          type: array
+                      required:
+                      - podSelector
+                      type: object
+                    type: array
+                type: object
+              nodeSelector:
+                additionalProperties:
+                  type: string
+                description: Specifies the label to control the placement of pods on a given pool of worker nodes. All namesapces created within the Tenant will have the node selector annotation. This annotation tells the Kubernetes scheduler to place pods on the nodes having the selector label. Optional.
+                type: object
+              owners:
+                description: Specifies the owners of the Tenant. Mandatory.
+                items:
+                  properties:
+                    kind:
+                      description: Kind of tenant owner. Possible values are "User", "Group", and "ServiceAccount"
+                      enum:
+                      - User
+                      - Group
+                      - ServiceAccount
+                      type: string
+                    name:
+                      description: Name of tenant owner.
+                      type: string
+                    proxySettings:
+                      description: Proxy settings for tenant owner.
+                      items:
+                        properties:
+                          kind:
+                            enum:
+                            - Nodes
+                            - StorageClasses
+                            - IngressClasses
+                            - PriorityClasses
+                            type: string
+                          operations:
+                            items:
+                              enum:
+                              - List
+                              - Update
+                              - Delete
+                              type: string
+                            type: array
+                        required:
+                        - kind
+                        - operations
+                        type: object
+                      type: array
+                  required:
+                  - kind
+                  - name
+                  type: object
+                type: array
+              priorityClasses:
+                description: Specifies the allowed IngressClasses assigned to the Tenant. Capsule assures that all Ingress resources created in the Tenant can use only one of the allowed IngressClasses. Optional.
+                properties:
+                  allowed:
+                    items:
+                      type: string
+                    type: array
+                  allowedRegex:
+                    type: string
+                type: object
+              resourceQuotas:
+                description: Specifies a list of ResourceQuota resources assigned to the Tenant. The assigned values are inherited by any namespace created in the Tenant. The Capsule operator aggregates ResourceQuota at Tenant level, so that the hard quota is never crossed for the given Tenant. This permits the Tenant owner to consume resources in the Tenant regardless of the namespace. Optional.
+                properties:
+                  items:
+                    items:
+                      description: ResourceQuotaSpec defines the desired hard limits to enforce for Quota.
+                      properties:
+                        hard:
+                          additionalProperties:
+                            anyOf:
+                            - type: integer
+                            - type: string
+                            pattern: ^(\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\+|-)?(([0-9]+(\.[0-9]*)?)|(\.[0-9]+))))?$
+                            x-kubernetes-int-or-string: true
+                          description: 'hard is the set of desired hard limits for each named resource. More info: https://kubernetes.io/docs/concepts/policy/resource-quotas/'
+                          type: object
+                        scopeSelector:
+                          description: scopeSelector is also a collection of filters like scopes that must match each object tracked by a quota but expressed using ScopeSelectorOperator in combination with possible values. For a resource to match, both scopes AND scopeSelector (if specified in spec), must be matched.
+                          properties:
+                            matchExpressions:
+                              description: A list of scope selector requirements by scope of the resources.
+                              items:
+                                description: A scoped-resource selector requirement is a selector that contains values, a scope name, and an operator that relates the scope name and values.
+                                properties:
+                                  operator:
+                                    description: Represents a scope's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist.
+                                    type: string
+                                  scopeName:
+                                    description: The name of the scope that the selector applies to.
+                                    type: string
+                                  values:
+                                    description: An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
+                                    items:
+                                      type: string
+                                    type: array
+                                required:
+                                - operator
+                                - scopeName
+                                type: object
+                              type: array
+                          type: object
+                        scopes:
+                          description: A collection of filters that must match each object tracked by a quota. If not specified, the quota matches all objects.
+                          items:
+                            description: A ResourceQuotaScope defines a filter that must match each object tracked by a quota
+                            type: string
+                          type: array
+                      type: object
+                    type: array
+                  scope:
+                    default: Tenant
+                    description: Define if the Resource Budget should compute resource across all Namespaces in the Tenant or individually per cluster. Default is Tenant
+                    enum:
+                    - Tenant
+                    - Namespace
+                    type: string
+                type: object
+              serviceOptions:
+                description: Specifies options for the Service, such as additional metadata or block of certain type of Services. Optional.
+                properties:
+                  additionalMetadata:
+                    description: Specifies additional labels and annotations the Capsule operator places on any Service resource in the Tenant. Optional.
+                    properties:
+                      annotations:
+                        additionalProperties:
+                          type: string
+                        type: object
+                      labels:
+                        additionalProperties:
+                          type: string
+                        type: object
+                    type: object
+                  allowedServices:
+                    description: Block or deny certain type of Services. Optional.
+                    properties:
+                      externalName:
+                        default: true
+                        description: Specifies if ExternalName service type resources are allowed for the Tenant. Default is true. Optional.
+                        type: boolean
+                      nodePort:
+                        default: true
+                        description: Specifies if NodePort service type resources are allowed for the Tenant. Default is true. Optional.
+                        type: boolean
+                    type: object
+                  externalIPs:
+                    description: Specifies the external IPs that can be used in Services with type ClusterIP. An empty list means no IPs are allowed. Optional.
+                    properties:
+                      allowed:
+                        items:
+                          pattern: ^([0-9]{1,3}.){3}[0-9]{1,3}(/([0-9]|[1-2][0-9]|3[0-2]))?$
+                          type: string
+                        type: array
+                    required:
+                    - allowed
+                    type: object
+                type: object
+              storageClasses:
+                description: Specifies the allowed StorageClasses assigned to the Tenant. Capsule assures that all PersistentVolumeClaim resources created in the Tenant can use only one of the allowed StorageClasses. Optional.
+                properties:
+                  allowed:
+                    items:
+                      type: string
+                    type: array
+                  allowedRegex:
+                    type: string
+                type: object
+            required:
+            - owners
+            type: object
+          status:
+            description: Returns the observed state of the Tenant
+            properties:
+              namespaces:
+                description: List of namespaces assigned to the Tenant.
+                items:
+                  type: string
+                type: array
+              size:
+                description: How many namespaces are assigned to the Tenant.
+                type: integer
+              state:
+                default: Active
+                description: The operational state of the Tenant. Possible values are "Active", "Cordoned".
+                enum:
+                - Cordoned
+                - Active
+                type: string
+            required:
+            - size
+            - state
+            type: object
+        type: object
+    served: true
     storage: true
     subresources:
       status: {}

config/crd/kustomization.yaml

@@ -9,3 +9,6 @@ resources:
 # the following config is for teaching kustomize how to do kustomization for CRDs.
 configurations:
 - kustomizeconfig.yaml
+
+patchesStrategicMerge:
+- patches/webhook_in_tenants.yaml

config/crd/kustomizeconfig.yaml

@@ -4,13 +4,15 @@ nameReference:
   version: v1
   fieldSpecs:
   - kind: CustomResourceDefinition
+    version: v1
     group: apiextensions.k8s.io
-    path: spec/conversion/webhookClientConfig/service/name
+    path: spec/conversion/webhook/clientConfig/service/name
 
 namespace:
 - kind: CustomResourceDefinition
+  version: v1
   group: apiextensions.k8s.io
-  path: spec/conversion/webhookClientConfig/service/namespace
+  path: spec/conversion/webhook/clientConfig/service/namespace
   create: false
 
 varReference:

config/crd/patches/webhook_in_tenants.yaml

@@ -0,0 +1,17 @@
+# The following patch enables a conversion webhook for the CRD
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  name: tenants.capsule.clastix.io
+spec:
+  conversion:
+    strategy: Webhook
+    webhook:
+      clientConfig:
+        service:
+          namespace: system
+          name: webhook-service
+          path: /convert
+      conversionReviewVersions:
+        - v1alpha1
+        - v1beta1

config/manager/configuration.yaml

@@ -6,5 +6,3 @@ spec:
   userGroups: ["capsule.clastix.io"]
   forceTenantPrefix: false
   protectedNamespaceRegex: ""
-  allowTenantIngressHostnamesCollision: false
-  allowIngressHostnameCollision: false

config/manager/kustomization.yaml

@@ -7,4 +7,4 @@ kind: Kustomization
 images:
 - name: controller
   newName: quay.io/clastix/capsule
-  newTag: v0.0.5
+  newTag: v0.1.0-rc5

config/prometheus/kustomization.yaml

@@ -1,2 +1,4 @@
 resources:
 - monitor.yaml
+- role.yaml
+- rolebinding.yaml

config/prometheus/monitor.yaml

@@ -1,16 +1,18 @@
-
 # Prometheus Monitor Service (Metrics)
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   labels:
     control-plane: controller-manager
-  name: controller-manager-metrics-monitor
+  name: capsule-monitor
   namespace: system
 spec:
   endpoints:
-    - path: /metrics
+    - interval: 15s
+      path: /metrics
       port: metrics
+  jobLabel: controller-manager
+  namespaceSelector:
   selector:
     matchLabels:
       control-plane: controller-manager

config/prometheus/role.yaml

@@ -0,0 +1,18 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: capsule-metrics-role
+  namespace: capsule-system
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - services
+  - endpoints
+  - pods
+  verbs:
+  - get
+  - list
+  - watch

config/prometheus/rolebinding.yaml

@@ -0,0 +1,15 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  labels:
+    control-plane: controller-manager
+  name: capsule-metrics-rolebinding
+  namespace: system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: capsule-metrics-role
+subjects:
+- kind: ServiceAccount
+  name: capsule
+  namespace: capsule-system

config/samples/capsule_v1alpha1_capsuleconfiguration.yaml

@@ -7,5 +7,3 @@ spec:
   userGroups: ["capsule.clastix.io"]
   forceTenantPrefix: false
   protectedNamespaceRegex: ""
-  allowTenantIngressHostnamesCollision: false
-  allowIngressHostnameCollision: false

config/samples/capsule_v1beta1_tenant.yaml

@@ -0,0 +1,139 @@
+---
+apiVersion: capsule.clastix.io/v1beta1
+kind: Tenant
+metadata:
+  name: gas
+spec:
+  additionalRoleBindings:
+    -
+      clusterRoleName: tenant-sample-viewer
+      subjects:
+        -
+          kind: User
+          name: bob
+  containerRegistries:
+    allowed:
+      - docker.io
+      - quay.io
+    allowedRegex: ^\w+.gcr.io$
+  serviceOptions:
+    additionalMetadata:
+      annotations:
+        capsule.clastix.io/bgp: "true"
+      labels:
+        capsule.clastix.io/pool: gas
+    allowedServices:
+      nodePort: false
+      externalName: false
+    externalIPs:
+      allowed:
+        - 10.20.0.0/16
+        - "10.96.42.42"
+  imagePullPolicies:
+    - Always
+  ingressOptions:
+    hostnameCollisionScope: Cluster
+    allowedClasses:
+      allowed:
+        - default
+      allowedRegex: ^\w+-lb$
+    allowedHostnames:
+      allowed:
+        - gas.acmecorp.com
+      allowedRegex: ^.*acmecorp.com$
+  limitRanges:
+    items:
+      -
+        limits:
+          -
+            max:
+              cpu: "1"
+              memory: 1Gi
+            min:
+              cpu: 50m
+              memory: 5Mi
+            type: Pod
+          -
+            default:
+              cpu: 200m
+              memory: 100Mi
+            defaultRequest:
+              cpu: 100m
+              memory: 10Mi
+            max:
+              cpu: "1"
+              memory: 1Gi
+            min:
+              cpu: 50m
+              memory: 5Mi
+            type: Container
+          -
+            max:
+              storage: 10Gi
+            min:
+              storage: 1Gi
+            type: PersistentVolumeClaim
+  namespaceOptions:
+    quota: 3
+    additionalMetadata:
+      annotations:
+        capsule.clastix.io/backup: "false"
+      labels:
+        capsule.clastix.io/tenant: gas
+  networkPolicies:
+    items:
+      -
+        egress:
+          -
+            to:
+              -
+                ipBlock:
+                  cidr: 0.0.0.0/0
+                  except:
+                    - 192.168.0.0/12
+        ingress:
+          -
+            from:
+              -
+                namespaceSelector:
+                  matchLabels:
+                    capsule.clastix.io/tenant: gas
+              -
+                podSelector: {}
+              -
+                ipBlock:
+                  cidr: 192.168.0.0/12
+        podSelector: {}
+        policyTypes:
+          - Ingress
+          - Egress
+  nodeSelector:
+    kubernetes.io/os: linux
+  owners:
+    -
+      kind: User
+      name: bob
+  priorityClasses:
+    allowed:
+      - shared-nodes
+    allowedRegex: ^\w-gas$
+  resourceQuotas:
+    items:
+      -
+        hard:
+          limits.cpu: "8"
+          limits.memory: 16Gi
+          requests.cpu: "8"
+          requests.memory: 16Gi
+        scopes:
+          - NotTerminating
+      -
+        hard:
+          pods: "10"
+      -
+        hard:
+          requests.storage: 100Gi
+  storageClasses:
+    allowed:
+      - default
+    allowedRegex: ^\w+fs$

config/samples/kustomization.yaml

@@ -2,3 +2,4 @@
 resources:
 - capsule_v1alpha1_capsuleconfiguration.yaml
 - capsule_v1alpha1_tenant.yaml
+- capsule_v1beta1_tenant.yaml

config/webhook/manifests.yaml

@@ -12,7 +12,7 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /mutate-v1-namespace-owner-reference
+      path: /namespace-owner-reference
   failurePolicy: Fail
   name: owner.namespace.capsule.clastix.io
   rules:
@@ -39,20 +39,20 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-ingress
+      path: /cordoning
   failurePolicy: Fail
-  name: ingress-v1beta1.capsule.clastix.io
+  name: cordoning.tenant.capsule.clastix.io
   rules:
   - apiGroups:
-    - networking.k8s.io
-    - extensions
+    - '*'
     apiVersions:
-    - v1beta1
+    - '*'
     operations:
     - CREATE
     - UPDATE
+    - DELETE
     resources:
-    - ingresses
+    - '*'
   sideEffects: None
 - admissionReviewVersions:
   - v1
@@ -60,13 +60,15 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-ingress
+      path: /ingresses
   failurePolicy: Fail
-  name: ingress-v1.capsule.clastix.io
+  name: ingress.capsule.clastix.io
   rules:
   - apiGroups:
     - networking.k8s.io
+    - extensions
     apiVersions:
+    - v1beta1
     - v1
     operations:
     - CREATE
@@ -80,9 +82,9 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validate-v1-namespace-quota
+      path: /namespaces
   failurePolicy: Fail
-  name: quota.namespace.capsule.clastix.io
+  name: namespaces.capsule.clastix.io
   rules:
   - apiGroups:
     - ""
@@ -90,6 +92,8 @@ webhooks:
     - v1
     operations:
     - CREATE
+    - UPDATE
+    - DELETE
     resources:
     - namespaces
   sideEffects: None
@@ -99,16 +103,15 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-v1-network-policy
+      path: /networkpolicies
   failurePolicy: Fail
-  name: validating.network-policy.capsule.clastix.io
+  name: networkpolicies.capsule.clastix.io
   rules:
   - apiGroups:
     - networking.k8s.io
     apiVersions:
     - v1
     operations:
-    - CREATE
     - UPDATE
     - DELETE
     resources:
@@ -120,9 +123,9 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-v1-podpriority
-  failurePolicy: Ignore
-  name: podpriority.capsule.clastix.io
+      path: /pods
+  failurePolicy: Fail
+  name: pods.capsule.clastix.io
   rules:
   - apiGroups:
     - ""
@@ -139,7 +142,7 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-v1-pvc
+      path: /persistentvolumeclaims
   failurePolicy: Fail
   name: pvc.capsule.clastix.io
   rules:
@@ -158,28 +161,9 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-v1-registry
-  failurePolicy: Ignore
-  name: pod.capsule.clastix.io
-  rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - pods
-  sideEffects: None
-- admissionReviewVersions:
-  - v1
-  clientConfig:
-    service:
-      name: webhook-service
-      namespace: system
-      path: /validating-external-service-ips
+      path: /services
   failurePolicy: Fail
-  name: validating-external-service-ips.capsule.clastix.io
+  name: services.capsule.clastix.io
   rules:
   - apiGroups:
     - ""
@@ -197,36 +181,18 @@ webhooks:
     service:
       name: webhook-service
       namespace: system
-      path: /validating-v1-tenant
+      path: /tenants
   failurePolicy: Fail
-  name: tenant.capsule.clastix.io
+  name: tenants.capsule.clastix.io
   rules:
   - apiGroups:
     - capsule.clastix.io
     apiVersions:
-    - v1alpha1
+    - v1beta1
     operations:
     - CREATE
     - UPDATE
+    - DELETE
     resources:
     - tenants
   sideEffects: None
-- admissionReviewVersions:
-  - v1
-  clientConfig:
-    service:
-      name: webhook-service
-      namespace: system
-      path: /validating-v1-namespace-tenant-prefix
-  failurePolicy: Fail
-  name: prefix.namespace.capsule.clastix.io
-  rules:
-  - apiGroups:
-    - ""
-    apiVersions:
-    - v1
-    operations:
-    - CREATE
-    resources:
-    - namespaces
-  sideEffects: None

config/webhook/patch_ns_selector.yaml

@@ -35,8 +35,20 @@
       - key: capsule.clastix.io/tenant
         operator: Exists
 - op: add
-  path: /webhooks/7/namespaceSelector
-  value:
-    matchExpressions:
-      - key: capsule.clastix.io/tenant
-        operator: Exists
+  path: /webhooks/0/rules/0/scope
+  value: Namespaced
+- op: add
+  path: /webhooks/1/rules/0/scope
+  value: Namespaced
+- op: add
+  path: /webhooks/3/rules/0/scope
+  value: Namespaced
+- op: add
+  path: /webhooks/4/rules/0/scope
+  value: Namespaced
+- op: add
+  path: /webhooks/5/rules/0/scope
+  value: Namespaced
+- op: add
+  path: /webhooks/6/rules/0/scope
+  value: Namespaced

controllers/config/manager.go

@@ -1,20 +1,7 @@
-/*
-Copyright 2020 Clastix Labs.
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package rbac
+package config
 
 import (
 	"context"
@@ -28,7 +15,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/predicate"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 
-	"github.com/clastix/capsule/api/v1alpha1"
+	capsulev1alpha1 "github.com/clastix/capsule/api/v1alpha1"
 	"github.com/clastix/capsule/pkg/configuration"
 )
 
@@ -38,8 +25,8 @@ type Manager struct {
 }
 
 // InjectClient injects the Client interface, required by the Runnable interface
-func (r *Manager) InjectClient(c client.Client) error {
-	r.Client = c
+func (c *Manager) InjectClient(client client.Client) error {
+	c.Client = client
 
 	return nil
 }
@@ -65,22 +52,22 @@ func forOptionPerInstanceName(instanceName string) builder.ForOption {
 	})
 }
 
-func (r *Manager) SetupWithManager(mgr ctrl.Manager, configurationName string) error {
+func (c *Manager) SetupWithManager(mgr ctrl.Manager, configurationName string) error {
 	return ctrl.NewControllerManagedBy(mgr).
-		For(&v1alpha1.CapsuleConfiguration{}, forOptionPerInstanceName(configurationName)).
-		Complete(r)
+		For(&capsulev1alpha1.CapsuleConfiguration{}, forOptionPerInstanceName(configurationName)).
+		Complete(c)
 }
 
-func (r *Manager) Reconcile(ctx context.Context, request reconcile.Request) (res reconcile.Result, err error) {
-	r.Log.Info("CapsuleConfiguration reconciliation started", "request.name", request.Name)
+func (c *Manager) Reconcile(ctx context.Context, request reconcile.Request) (res reconcile.Result, err error) {
+	c.Log.Info("CapsuleConfiguration reconciliation started", "request.name", request.Name)
 
-	cfg := configuration.NewCapsuleConfiguration(r.Client, request.Name)
+	cfg := configuration.NewCapsuleConfiguration(c.Client, request.Name)
 	// Validating the Capsule Configuration options
 	if _, err = cfg.ProtectedNamespaceRegexp(); err != nil {
 		panic(errors.Wrap(err, "Invalid configuration for protected Namespace regex"))
 	}
 
-	r.Log.Info("CapsuleConfiguration reconciliation finished", "request.name", request.Name)
+	c.Log.Info("CapsuleConfiguration reconciliation finished", "request.name", request.Name)
 
 	return
 }

controllers/rbac/const.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package rbac
 

controllers/rbac/manager.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package rbac
 
@@ -36,7 +23,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 	"sigs.k8s.io/controller-runtime/pkg/source"
 
-	"github.com/clastix/capsule/api/v1alpha1"
+	capsulev1alpha1 "github.com/clastix/capsule/api/v1alpha1"
 	"github.com/clastix/capsule/pkg/configuration"
 )
 
@@ -92,7 +79,7 @@ func (r *Manager) SetupWithManager(mgr ctrl.Manager, configurationName string) (
 				return r.filterByNames(genericEvent.Object.GetName())
 			},
 		})).
-		Watches(source.NewKindWithCache(&v1alpha1.CapsuleConfiguration{}, mgr.GetCache()), handler.Funcs{
+		Watches(source.NewKindWithCache(&capsulev1alpha1.CapsuleConfiguration{}, mgr.GetCache()), handler.Funcs{
 			UpdateFunc: func(updateEvent event.UpdateEvent, limitingInterface workqueue.RateLimitingInterface) {
 				if updateEvent.ObjectNew.GetName() == configurationName {
 					if crbErr := r.EnsureClusterRoleBindings(); crbErr != nil {

controllers/secret/ca.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package secret
 
@@ -24,11 +11,13 @@ import (
 
 	"github.com/go-logr/logr"
 	"golang.org/x/sync/errgroup"
-	v1 "k8s.io/api/admissionregistration/v1"
+	admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
 	corev1 "k8s.io/api/core/v1"
+	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/util/retry"
+	"k8s.io/utils/pointer"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
@@ -50,10 +39,45 @@ func (r *CAReconciler) SetupWithManager(mgr ctrl.Manager) error {
 		Complete(r)
 }
 
+// By default helm doesn't allow to use templates in CRD (https://helm.sh/docs/chart_best_practices/custom_resource_definitions/#method-1-let-helm-do-it-for-you).
+// In order to overcome this, we are setting conversion strategy in helm chart to None, and then update it with CA and namespace information.
+func (r *CAReconciler) UpdateCustomResourceDefinition(caBundle []byte) error {
+	return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
+		crd := &apiextensionsv1.CustomResourceDefinition{}
+		err = r.Get(context.TODO(), types.NamespacedName{Name: "tenants.capsule.clastix.io"}, crd)
+		if err != nil {
+			r.Log.Error(err, "cannot retrieve CustomResourceDefinition")
+			return err
+		}
+
+		_, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, crd, func() error {
+			crd.Spec.Conversion = &apiextensionsv1.CustomResourceConversion{
+				Strategy: "Webhook",
+				Webhook: &apiextensionsv1.WebhookConversion{
+					ClientConfig: &apiextensionsv1.WebhookClientConfig{
+						Service: &apiextensionsv1.ServiceReference{
+							Namespace: r.Namespace,
+							Name:      "capsule-webhook-service",
+							Path:      pointer.StringPtr("/convert"),
+							Port:      pointer.Int32Ptr(443),
+						},
+						CABundle: caBundle,
+					},
+					ConversionReviewVersions: []string{"v1alpha1", "v1beta1"},
+				},
+			}
+
+			return nil
+		})
+
+		return err
+	})
+}
+
 //nolint:dupl
 func (r CAReconciler) UpdateValidatingWebhookConfiguration(caBundle []byte) error {
 	return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
-		vw := &v1.ValidatingWebhookConfiguration{}
+		vw := &admissionregistrationv1.ValidatingWebhookConfiguration{}
 		err = r.Get(context.TODO(), types.NamespacedName{Name: "capsule-validating-webhook-configuration"}, vw)
 		if err != nil {
 			r.Log.Error(err, "cannot retrieve ValidatingWebhookConfiguration")
@@ -72,7 +96,7 @@ func (r CAReconciler) UpdateValidatingWebhookConfiguration(caBundle []byte) erro
 //nolint:dupl
 func (r CAReconciler) UpdateMutatingWebhookConfiguration(caBundle []byte) error {
 	return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
-		mw := &v1.MutatingWebhookConfiguration{}
+		mw := &admissionregistrationv1.MutatingWebhookConfiguration{}
 		err = r.Get(context.TODO(), types.NamespacedName{Name: "capsule-mutating-webhook-configuration"}, mw)
 		if err != nil {
 			r.Log.Error(err, "cannot retrieve MutatingWebhookConfiguration")
@@ -133,13 +157,16 @@ func (r CAReconciler) Reconcile(ctx context.Context, request ctrl.Request) (ctrl
 			privateKeySecretKey: key.Bytes(),
 		}
 
-		group := errgroup.Group{}
+		group := new(errgroup.Group)
 		group.Go(func() error {
 			return r.UpdateMutatingWebhookConfiguration(crt.Bytes())
 		})
 		group.Go(func() error {
 			return r.UpdateValidatingWebhookConfiguration(crt.Bytes())
 		})
+		group.Go(func() error {
+			return r.UpdateCustomResourceDefinition(crt.Bytes())
+		})
 
 		if err = group.Wait(); err != nil {
 			return reconcile.Result{}, err

controllers/secret/const.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package secret
 

controllers/secret/errors.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package secret
 

controllers/secret/reconciler.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package secret
 

controllers/secret/tls.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package secret
 

controllers/servicelabels/abstract.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package servicelabels
 
@@ -33,7 +20,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/predicate"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 
-	"github.com/clastix/capsule/api/v1alpha1"
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
 )
 
 type abstractServiceLabelsReconciler struct {
@@ -66,23 +53,23 @@ func (r *abstractServiceLabelsReconciler) Reconcile(ctx context.Context, request
 	}
 
 	_, err = controllerutil.CreateOrUpdate(ctx, r.client, r.obj, func() (err error) {
-		r.obj.SetLabels(r.sync(r.obj.GetLabels(), tenant.Spec.ServicesMetadata.AdditionalLabels))
-		r.obj.SetAnnotations(r.sync(r.obj.GetAnnotations(), tenant.Spec.ServicesMetadata.AdditionalAnnotations))
+		r.obj.SetLabels(r.sync(r.obj.GetLabels(), tenant.Spec.ServiceOptions.AdditionalMetadata.Labels))
+		r.obj.SetAnnotations(r.sync(r.obj.GetAnnotations(), tenant.Spec.ServiceOptions.AdditionalMetadata.Annotations))
 		return nil
 	})
 
 	return reconcile.Result{}, err
 }
 
-func (r *abstractServiceLabelsReconciler) getTenant(ctx context.Context, namespacedName types.NamespacedName, client client.Client) (*v1alpha1.Tenant, error) {
+func (r *abstractServiceLabelsReconciler) getTenant(ctx context.Context, namespacedName types.NamespacedName, client client.Client) (*capsulev1beta1.Tenant, error) {
 	ns := &corev1.Namespace{}
-	tenant := &v1alpha1.Tenant{}
+	tenant := &capsulev1beta1.Tenant{}
 
 	if err := client.Get(ctx, types.NamespacedName{Name: namespacedName.Namespace}, ns); err != nil {
 		return nil, err
 	}
 
-	capsuleLabel, _ := v1alpha1.GetTypeLabel(&v1alpha1.Tenant{})
+	capsuleLabel, _ := capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{})
 	if _, ok := ns.GetLabels()[capsuleLabel]; !ok {
 		return nil, NewNonTenantObject(namespacedName.Name)
 	}
@@ -91,7 +78,7 @@ func (r *abstractServiceLabelsReconciler) getTenant(ctx context.Context, namespa
 		return nil, err
 	}
 
-	if tenant.Spec.ServicesMetadata.AdditionalLabels == nil && tenant.Spec.ServicesMetadata.AdditionalAnnotations == nil {
+	if tenant.Spec.ServiceOptions == nil || tenant.Spec.ServiceOptions.AdditionalMetadata == nil {
 		return nil, NewNoServicesMetadata(namespacedName.Name)
 	}
 
@@ -131,7 +118,7 @@ func (r *abstractServiceLabelsReconciler) forOptionPerInstanceName() builder.For
 }
 
 func (r *abstractServiceLabelsReconciler) IsNamespaceInTenant(namespace string) bool {
-	tl := &v1alpha1.TenantList{}
+	tl := &capsulev1beta1.TenantList{}
 	if err := r.client.List(context.Background(), tl, client.MatchingFieldsSelector{
 		Selector: fields.OneTermEqualSelector(".status.namespaces", namespace),
 	}); err != nil {

controllers/servicelabels/endpoint.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package servicelabels
 

controllers/servicelabels/endpoint_slices.go

@@ -1,23 +1,11 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package servicelabels
 
 import (
 	"github.com/go-logr/logr"
+	discoveryv1 "k8s.io/api/discovery/v1"
 	discoveryv1beta1 "k8s.io/api/discovery/v1beta1"
 	ctrl "sigs.k8s.io/controller-runtime"
 )
@@ -37,12 +25,16 @@ func (r *EndpointSlicesLabelsReconciler) SetupWithManager(mgr ctrl.Manager) erro
 		log:    r.Log,
 	}
 
-	if r.VersionMajor == 1 && r.VersionMinor <= 16 {
+	switch {
+	case r.VersionMajor == 1 && r.VersionMinor <= 16:
 		r.Log.Info("Skipping controller setup, as EndpointSlices are not supported on current kubernetes version", "VersionMajor", r.VersionMajor, "VersionMinor", r.VersionMinor)
 		return nil
+	case r.VersionMajor == 1 && r.VersionMinor >= 21:
+		r.abstractServiceLabelsReconciler.obj = &discoveryv1.EndpointSlice{}
+	default:
+		r.abstractServiceLabelsReconciler.obj = &discoveryv1beta1.EndpointSlice{}
 	}
 
-	r.abstractServiceLabelsReconciler.obj = &discoveryv1beta1.EndpointSlice{}
 	return ctrl.NewControllerManagedBy(mgr).
 		For(r.obj, r.abstractServiceLabelsReconciler.forOptionPerInstanceName()).
 		Complete(r)

controllers/servicelabels/errors.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package servicelabels
 

controllers/servicelabels/service.go

@@ -1,18 +1,5 @@
-/*
-Copyright 2020 Clastix Labs.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
+// Copyright 2020-2021 Clastix Labs
+// SPDX-License-Identifier: Apache-2.0
 
 package servicelabels
 

controllers/tenant/limitranges.go

@@ -0,0 +1,80 @@
+package tenant
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"golang.org/x/sync/errgroup"
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+// Ensuring all the LimitRange are applied to each Namespace handled by the Tenant.
+func (r *Manager) syncLimitRanges(tenant *capsulev1beta1.Tenant) error {
+	// getting requested LimitRange keys
+	keys := make([]string, 0, len(tenant.Spec.LimitRanges.Items))
+
+	for i := range tenant.Spec.LimitRanges.Items {
+		keys = append(keys, strconv.Itoa(i))
+	}
+
+	group := new(errgroup.Group)
+
+	for _, ns := range tenant.Status.Namespaces {
+		namespace := ns
+
+		group.Go(func() error {
+			return r.syncLimitRange(tenant, namespace, keys)
+		})
+	}
+
+	return group.Wait()
+}
+
+func (r *Manager) syncLimitRange(tenant *capsulev1beta1.Tenant, namespace string, keys []string) (err error) {
+	// getting LimitRange labels for the mutateFn
+	var tenantLabel, limitRangeLabel string
+
+	if tenantLabel, err = capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{}); err != nil {
+		return
+	}
+	if limitRangeLabel, err = capsulev1beta1.GetTypeLabel(&corev1.LimitRange{}); err != nil {
+		return
+	}
+
+	if err = r.pruningResources(namespace, keys, &corev1.LimitRange{}); err != nil {
+		return
+	}
+
+	for i, spec := range tenant.Spec.LimitRanges.Items {
+		target := &corev1.LimitRange{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      fmt.Sprintf("capsule-%s-%d", tenant.Name, i),
+				Namespace: namespace,
+			},
+		}
+
+		var res controllerutil.OperationResult
+		res, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, target, func() (err error) {
+			target.ObjectMeta.Labels = map[string]string{
+				tenantLabel:     tenant.Name,
+				limitRangeLabel: strconv.Itoa(i),
+			}
+			target.Spec = spec
+			return controllerutil.SetControllerReference(tenant, target, r.Scheme)
+		})
+
+		r.emitEvent(tenant, target.GetNamespace(), res, fmt.Sprintf("Ensuring LimitRange %s", target.GetName()), err)
+
+		r.Log.Info("LimitRange sync result: "+string(res), "name", target.Name, "namespace", target.Namespace)
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}

controllers/tenant/manager.go

@@ -0,0 +1,127 @@
+package tenant
+
+import (
+	"context"
+
+	"github.com/go-logr/logr"
+	corev1 "k8s.io/api/core/v1"
+	networkingv1 "k8s.io/api/networking/v1"
+	rbacv1 "k8s.io/api/rbac/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/tools/record"
+	"k8s.io/client-go/util/retry"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/reconcile"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+type Manager struct {
+	client.Client
+	Log      logr.Logger
+	Scheme   *runtime.Scheme
+	Recorder record.EventRecorder
+}
+
+func (r *Manager) SetupWithManager(mgr ctrl.Manager) error {
+	return ctrl.NewControllerManagedBy(mgr).
+		For(&capsulev1beta1.Tenant{}).
+		Owns(&corev1.Namespace{}).
+		Owns(&networkingv1.NetworkPolicy{}).
+		Owns(&corev1.LimitRange{}).
+		Owns(&corev1.ResourceQuota{}).
+		Owns(&rbacv1.RoleBinding{}).
+		Complete(r)
+}
+
+func (r Manager) Reconcile(ctx context.Context, request ctrl.Request) (result ctrl.Result, err error) {
+	r.Log = r.Log.WithValues("Request.Name", request.Name)
+
+	// Fetch the Tenant instance
+	instance := &capsulev1beta1.Tenant{}
+	if err = r.Get(ctx, request.NamespacedName, instance); err != nil {
+		if errors.IsNotFound(err) {
+			r.Log.Info("Request object not found, could have been deleted after reconcile request")
+			return reconcile.Result{}, nil
+		}
+		r.Log.Error(err, "Error reading the object")
+		return
+	}
+	// Ensuring the Tenant Status
+	if err = r.updateTenantStatus(instance); err != nil {
+		r.Log.Error(err, "Cannot update Tenant status")
+		return
+	}
+
+	// Ensuring all namespaces are collected
+	r.Log.Info("Ensuring all Namespaces are collected")
+	if err = r.collectNamespaces(instance); err != nil {
+		r.Log.Error(err, "Cannot collect Namespace resources")
+		return
+	}
+
+	r.Log.Info("Starting processing of Namespaces", "items", len(instance.Status.Namespaces))
+	if err = r.syncNamespaces(instance); err != nil {
+		r.Log.Error(err, "Cannot sync Namespace items")
+		return
+	}
+
+	if instance.Spec.NetworkPolicies != nil {
+		r.Log.Info("Starting processing of Network Policies", "items", len(instance.Spec.NetworkPolicies.Items))
+		if err = r.syncNetworkPolicies(instance); err != nil {
+			r.Log.Error(err, "Cannot sync NetworkPolicy items")
+			return
+		}
+	}
+
+	if instance.Spec.LimitRanges != nil {
+		r.Log.Info("Starting processing of Limit Ranges", "items", len(instance.Spec.LimitRanges.Items))
+		if err = r.syncLimitRanges(instance); err != nil {
+			r.Log.Error(err, "Cannot sync LimitRange items")
+			return
+		}
+	}
+
+	if instance.Spec.ResourceQuota != nil {
+		r.Log.Info("Starting processing of Resource Quotas", "items", len(instance.Spec.ResourceQuota.Items))
+		if err = r.syncResourceQuotas(instance); err != nil {
+			r.Log.Error(err, "Cannot sync ResourceQuota items")
+			return
+		}
+	}
+
+	r.Log.Info("Ensuring additional RoleBindings for owner")
+	if err = r.syncAdditionalRoleBindings(instance); err != nil {
+		r.Log.Error(err, "Cannot sync additional RoleBindings items")
+		return
+	}
+
+	r.Log.Info("Ensuring RoleBinding for owner")
+	if err = r.ownerRoleBinding(instance); err != nil {
+		r.Log.Error(err, "Cannot sync owner RoleBinding")
+		return
+	}
+
+	r.Log.Info("Ensuring Namespace count")
+	if err = r.ensureNamespaceCount(instance); err != nil {
+		r.Log.Error(err, "Cannot sync Namespace count")
+		return
+	}
+
+	r.Log.Info("Tenant reconciling completed")
+	return ctrl.Result{}, err
+}
+
+func (r *Manager) updateTenantStatus(tnt *capsulev1beta1.Tenant) error {
+	return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
+		if tnt.IsCordoned() {
+			tnt.Status.State = capsulev1beta1.TenantStateCordoned
+		} else {
+			tnt.Status.State = capsulev1beta1.TenantStateActive
+		}
+
+		return r.Client.Status().Update(context.Background(), tnt)
+	})
+}

controllers/tenant/namespaces.go

@@ -0,0 +1,153 @@
+package tenant
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"golang.org/x/sync/errgroup"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/client-go/util/retry"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+// Ensuring all annotations are applied to each Namespace handled by the Tenant.
+func (r *Manager) syncNamespaces(tenant *capsulev1beta1.Tenant) (err error) {
+	group := new(errgroup.Group)
+
+	for _, item := range tenant.Status.Namespaces {
+		namespace := item
+
+		group.Go(func() error {
+			return r.syncNamespaceMetadata(namespace, tenant)
+		})
+	}
+
+	if err = group.Wait(); err != nil {
+		r.Log.Error(err, "Cannot sync Namespaces")
+
+		err = fmt.Errorf("cannot sync Namespaces: %s", err.Error())
+	}
+	return
+}
+
+func (r *Manager) syncNamespaceMetadata(namespace string, tnt *capsulev1beta1.Tenant) (err error) {
+	var res controllerutil.OperationResult
+
+	err = retry.RetryOnConflict(retry.DefaultBackoff, func() (conflictErr error) {
+		ns := &corev1.Namespace{}
+		if conflictErr = r.Client.Get(context.TODO(), types.NamespacedName{Name: namespace}, ns); err != nil {
+			return
+		}
+
+		capsuleLabel, _ := capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{})
+
+		res, conflictErr = controllerutil.CreateOrUpdate(context.TODO(), r.Client, ns, func() error {
+			annotations := make(map[string]string)
+
+			if tnt.Spec.NamespaceOptions != nil && tnt.Spec.NamespaceOptions.AdditionalMetadata != nil {
+				for k, v := range tnt.Spec.NamespaceOptions.AdditionalMetadata.Annotations {
+					annotations[k] = v
+				}
+			}
+
+			if tnt.Spec.NodeSelector != nil {
+				var selector []string
+				for k, v := range tnt.Spec.NodeSelector {
+					selector = append(selector, fmt.Sprintf("%s=%s", k, v))
+				}
+				annotations["scheduler.alpha.kubernetes.io/node-selector"] = strings.Join(selector, ",")
+			}
+
+			if tnt.Spec.IngressOptions.AllowedClasses != nil {
+				if len(tnt.Spec.IngressOptions.AllowedClasses.Exact) > 0 {
+					annotations[capsulev1beta1.AvailableIngressClassesAnnotation] = strings.Join(tnt.Spec.IngressOptions.AllowedClasses.Exact, ",")
+				}
+				if len(tnt.Spec.IngressOptions.AllowedClasses.Regex) > 0 {
+					annotations[capsulev1beta1.AvailableIngressClassesRegexpAnnotation] = tnt.Spec.IngressOptions.AllowedClasses.Regex
+				}
+			}
+
+			if tnt.Spec.StorageClasses != nil {
+				if len(tnt.Spec.StorageClasses.Exact) > 0 {
+					annotations[capsulev1beta1.AvailableStorageClassesAnnotation] = strings.Join(tnt.Spec.StorageClasses.Exact, ",")
+				}
+				if len(tnt.Spec.StorageClasses.Regex) > 0 {
+					annotations[capsulev1beta1.AvailableStorageClassesRegexpAnnotation] = tnt.Spec.StorageClasses.Regex
+				}
+			}
+
+			if tnt.Spec.ContainerRegistries != nil {
+				if len(tnt.Spec.ContainerRegistries.Exact) > 0 {
+					annotations[capsulev1beta1.AllowedRegistriesAnnotation] = strings.Join(tnt.Spec.ContainerRegistries.Exact, ",")
+				}
+				if len(tnt.Spec.ContainerRegistries.Regex) > 0 {
+					annotations[capsulev1beta1.AllowedRegistriesRegexpAnnotation] = tnt.Spec.ContainerRegistries.Regex
+				}
+			}
+
+			ns.SetAnnotations(annotations)
+
+			newLabels := map[string]string{
+				"name":       namespace,
+				capsuleLabel: tnt.GetName(),
+			}
+
+			if tnt.Spec.NamespaceOptions != nil && tnt.Spec.NamespaceOptions.AdditionalMetadata != nil {
+				for k, v := range tnt.Spec.NamespaceOptions.AdditionalMetadata.Labels {
+					newLabels[k] = v
+				}
+			}
+
+			ns.SetLabels(newLabels)
+
+			return nil
+		})
+
+		return
+	})
+
+	r.emitEvent(tnt, namespace, res, "Ensuring Namespace metadata", err)
+
+	return
+}
+
+func (r *Manager) ensureNamespaceCount(tenant *capsulev1beta1.Tenant) error {
+	return retry.RetryOnConflict(retry.DefaultBackoff, func() error {
+		tenant.Status.Size = uint(len(tenant.Status.Namespaces))
+
+		found := &capsulev1beta1.Tenant{}
+		if err := r.Client.Get(context.TODO(), types.NamespacedName{Name: tenant.GetName()}, found); err != nil {
+			return err
+		}
+
+		found.Status.Size = tenant.Status.Size
+
+		return r.Client.Status().Update(context.TODO(), found, &client.UpdateOptions{})
+	})
+}
+
+func (r *Manager) collectNamespaces(tenant *capsulev1beta1.Tenant) error {
+	return retry.RetryOnConflict(retry.DefaultBackoff, func() (err error) {
+		list := &corev1.NamespaceList{}
+		err = r.Client.List(context.TODO(), list, client.MatchingFieldsSelector{
+			Selector: fields.OneTermEqualSelector(".metadata.ownerReferences[*].capsule", tenant.GetName()),
+		})
+
+		if err != nil {
+			return
+		}
+
+		_, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, tenant.DeepCopy(), func() error {
+			tenant.AssignNamespaces(list.Items)
+
+			return r.Client.Status().Update(context.TODO(), tenant, &client.UpdateOptions{})
+		})
+		return
+	})
+}

controllers/tenant/networkpolicies.go

@@ -0,0 +1,82 @@
+package tenant
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"golang.org/x/sync/errgroup"
+	networkingv1 "k8s.io/api/networking/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+// Ensuring all the NetworkPolicies are applied to each Namespace handled by the Tenant.
+func (r *Manager) syncNetworkPolicies(tenant *capsulev1beta1.Tenant) error {
+	// getting requested NetworkPolicy keys
+	keys := make([]string, 0, len(tenant.Spec.NetworkPolicies.Items))
+
+	for i := range tenant.Spec.NetworkPolicies.Items {
+		keys = append(keys, strconv.Itoa(i))
+	}
+
+	group := new(errgroup.Group)
+
+	for _, ns := range tenant.Status.Namespaces {
+		namespace := ns
+
+		group.Go(func() error {
+			return r.syncNetworkPolicy(tenant, namespace, keys)
+		})
+	}
+
+	return group.Wait()
+}
+
+func (r *Manager) syncNetworkPolicy(tenant *capsulev1beta1.Tenant, namespace string, keys []string) (err error) {
+	if err = r.pruningResources(namespace, keys, &networkingv1.NetworkPolicy{}); err != nil {
+		return
+	}
+	// getting NetworkPolicy labels for the mutateFn
+	var tenantLabel, networkPolicyLabel string
+
+	if tenantLabel, err = capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{}); err != nil {
+		return
+	}
+
+	if networkPolicyLabel, err = capsulev1beta1.GetTypeLabel(&networkingv1.NetworkPolicy{}); err != nil {
+		return
+	}
+
+	for i, spec := range tenant.Spec.NetworkPolicies.Items {
+		target := &networkingv1.NetworkPolicy{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      fmt.Sprintf("capsule-%s-%d", tenant.Name, i),
+				Namespace: namespace,
+			},
+		}
+
+		var res controllerutil.OperationResult
+		res, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, target, func() (err error) {
+			target.SetLabels(map[string]string{
+				tenantLabel:        tenant.Name,
+				networkPolicyLabel: strconv.Itoa(i),
+			})
+			target.Spec = spec
+
+			return controllerutil.SetControllerReference(tenant, target, r.Scheme)
+		})
+
+		r.emitEvent(tenant, target.GetNamespace(), res, fmt.Sprintf("Ensuring NetworkPolicy %s", target.GetName()), err)
+
+		r.Log.Info("Network Policy sync result: "+string(res), "name", target.Name, "namespace", target.Namespace)
+
+		if err != nil {
+			return
+		}
+	}
+
+	return
+}

controllers/tenant/resourcequotas.go

@@ -0,0 +1,251 @@
+package tenant
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"golang.org/x/sync/errgroup"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/selection"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/client-go/util/retry"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+)
+
+// When the Resource Budget assigned to a Tenant is Tenant-scoped we have to rely on the ResourceQuota resources to
+// represent the resource quota for the single Tenant rather than the single Namespace,
+// so abusing of this API although its Namespaced scope.
+//
+// Since a Namespace could take-up all the available resource quota, the Namespace ResourceQuota will be a 1:1 mapping
+// to the Tenant one: in first time Capsule is going to sum all the analogous ResourceQuota resources on other Tenant
+// namespaces to check if the Tenant quota has been exceeded or not, reusing the native Kubernetes policy putting the
+// .Status.Used value as the .Hard value.
+// This will trigger following reconciliations but that's ok: the mutateFn will re-use the same business logic, letting
+// the mutateFn along with the CreateOrUpdate to don't perform the update since resources are identical.
+//
+// In case of Namespace-scoped Resource Budget, we're just replicating the resources across all registered Namespaces.
+func (r *Manager) syncResourceQuotas(tenant *capsulev1beta1.Tenant) (err error) {
+	// getting ResourceQuota labels for the mutateFn
+	var tenantLabel, typeLabel string
+
+	if tenantLabel, err = capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{}); err != nil {
+		return err
+	}
+
+	if typeLabel, err = capsulev1beta1.GetTypeLabel(&corev1.ResourceQuota{}); err != nil {
+		return err
+	}
+
+	if tenant.Spec.ResourceQuota.Scope == capsulev1beta1.ResourceQuotaScopeTenant {
+		group := new(errgroup.Group)
+
+		for i, q := range tenant.Spec.ResourceQuota.Items {
+			index := i
+
+			resourceQuota := q
+
+			group.Go(func() (scopeErr error) {
+				// Calculating the Resource Budget at Tenant scope just if this is put in place.
+				// Requirement to list ResourceQuota of the current Tenant
+				var tntRequirement *labels.Requirement
+				if tntRequirement, scopeErr = labels.NewRequirement(tenantLabel, selection.Equals, []string{tenant.Name}); scopeErr != nil {
+					r.Log.Error(scopeErr, "Cannot build ResourceQuota Tenant requirement")
+				}
+				// Requirement to list ResourceQuota for the current index
+				var indexRequirement *labels.Requirement
+				if indexRequirement, scopeErr = labels.NewRequirement(typeLabel, selection.Equals, []string{strconv.Itoa(index)}); scopeErr != nil {
+					r.Log.Error(scopeErr, "Cannot build ResourceQuota index requirement")
+				}
+				// Listing all the ResourceQuota according to the said requirements.
+				// These are required since Capsule is going to sum all the used quota to
+				// sum them and get the Tenant one.
+				list := &corev1.ResourceQuotaList{}
+				if scopeErr = r.List(context.TODO(), list, &client.ListOptions{LabelSelector: labels.NewSelector().Add(*tntRequirement).Add(*indexRequirement)}); scopeErr != nil {
+					r.Log.Error(scopeErr, "Cannot list ResourceQuota", "tenantFilter", tntRequirement.String(), "indexFilter", indexRequirement.String())
+					return
+				}
+				// Iterating over all the options declared for the ResourceQuota,
+				// summing all the used quota across different Namespaces to determinate
+				// if we're hitting a Hard quota at Tenant level.
+				// For this case, we're going to block the Quota setting the Hard as the
+				// used one.
+				for name, hardQuota := range resourceQuota.Hard {
+					r.Log.Info("Desired hard " + name.String() + " quota is " + hardQuota.String())
+
+					// Getting the whole usage across all the Tenant Namespaces
+					var quantity resource.Quantity
+					for _, item := range list.Items {
+						quantity.Add(item.Status.Used[name])
+					}
+					r.Log.Info("Computed " + name.String() + " quota for the whole Tenant is " + quantity.String())
+
+					switch quantity.Cmp(resourceQuota.Hard[name]) {
+					case 0:
+						// The Tenant is matching exactly the Quota:
+						// falling through next case since we have to block further
+						// resource allocations.
+						fallthrough
+					case 1:
+						// The Tenant is OverQuota:
+						// updating all the related ResourceQuota with the current
+						// used Quota to block further creations.
+						for item := range list.Items {
+							if _, ok := list.Items[item].Status.Used[name]; ok {
+								list.Items[item].Spec.Hard[name] = list.Items[item].Status.Used[name]
+							} else {
+								um := make(map[corev1.ResourceName]resource.Quantity)
+								um[name] = resource.Quantity{}
+								list.Items[item].Spec.Hard = um
+							}
+						}
+					default:
+						// The Tenant is respecting the Hard quota:
+						// restoring the default one for all the elements,
+						// also for the reconciled one.
+						for item := range list.Items {
+							if list.Items[item].Spec.Hard == nil {
+								list.Items[item].Spec.Hard = map[corev1.ResourceName]resource.Quantity{}
+							}
+							list.Items[item].Spec.Hard[name] = resourceQuota.Hard[name]
+						}
+					}
+					if scopeErr = r.resourceQuotasUpdate(name, quantity, resourceQuota.Hard[name], list.Items...); scopeErr != nil {
+						r.Log.Error(scopeErr, "cannot proceed with outer ResourceQuota")
+						return
+					}
+				}
+				return
+			})
+		}
+		// Waiting the update of all ResourceQuotas
+		if err = group.Wait(); err != nil {
+			return
+		}
+	}
+	// getting requested ResourceQuota keys
+	keys := make([]string, 0, len(tenant.Spec.ResourceQuota.Items))
+
+	for i := range tenant.Spec.ResourceQuota.Items {
+		keys = append(keys, strconv.Itoa(i))
+	}
+
+	group := new(errgroup.Group)
+
+	for _, ns := range tenant.Status.Namespaces {
+		namespace := ns
+
+		group.Go(func() error {
+			return r.syncResourceQuota(tenant, namespace, keys)
+		})
+	}
+
+	return group.Wait()
+}
+
+func (r *Manager) syncResourceQuota(tenant *capsulev1beta1.Tenant, namespace string, keys []string) (err error) {
+	// getting ResourceQuota labels for the mutateFn
+	var tenantLabel, typeLabel string
+
+	if tenantLabel, err = capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{}); err != nil {
+		return err
+	}
+
+	if typeLabel, err = capsulev1beta1.GetTypeLabel(&corev1.ResourceQuota{}); err != nil {
+		return err
+	}
+	// Pruning resource of non-requested resources
+	if err = r.pruningResources(namespace, keys, &corev1.ResourceQuota{}); err != nil {
+		return err
+	}
+
+	for index, resQuota := range tenant.Spec.ResourceQuota.Items {
+		target := &corev1.ResourceQuota{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      fmt.Sprintf("capsule-%s-%d", tenant.Name, index),
+				Namespace: namespace,
+			},
+		}
+
+		var res controllerutil.OperationResult
+		err = retry.RetryOnConflict(retry.DefaultBackoff, func() (retryErr error) {
+			res, retryErr = controllerutil.CreateOrUpdate(context.TODO(), r.Client, target, func() (err error) {
+				target.SetLabels(map[string]string{
+					tenantLabel: tenant.Name,
+					typeLabel:   strconv.Itoa(index),
+				})
+				target.Spec.Scopes = resQuota.Scopes
+				target.Spec.ScopeSelector = resQuota.ScopeSelector
+				// In case of Namespace scope for the ResourceQuota we can easily apply the bare specification
+				if tenant.Spec.ResourceQuota.Scope == capsulev1beta1.ResourceQuotaScopeNamespace {
+					target.Spec.Hard = resQuota.Hard
+				}
+
+				return controllerutil.SetControllerReference(tenant, target, r.Scheme)
+			})
+
+			return retryErr
+		})
+
+		r.emitEvent(tenant, target.GetNamespace(), res, fmt.Sprintf("Ensuring ResourceQuota %s", target.GetName()), err)
+
+		r.Log.Info("Resource Quota sync result: "+string(res), "name", target.Name, "namespace", target.Namespace)
+
+		if err != nil {
+			return
+		}
+	}
+
+	return nil
+}
+
+// Serial ResourceQuota processing is expensive: using Go routines we can speed it up.
+// In case of multiple errors these are logged properly, returning a generic error since we have to repush back the
+// reconciliation loop.
+func (r *Manager) resourceQuotasUpdate(resourceName corev1.ResourceName, actual, limit resource.Quantity, list ...corev1.ResourceQuota) (err error) {
+	group := new(errgroup.Group)
+
+	for _, item := range list {
+		rq := item
+
+		group.Go(func() (err error) {
+			found := &corev1.ResourceQuota{}
+			if err = r.Get(context.TODO(), types.NamespacedName{Namespace: rq.Namespace, Name: rq.Name}, found); err != nil {
+				return
+			}
+
+			return retry.RetryOnConflict(retry.DefaultBackoff, func() (retryErr error) {
+				_, retryErr = controllerutil.CreateOrUpdate(context.TODO(), r.Client, found, func() error {
+					// Ensuring annotation map is there to avoid uninitialized map error and
+					// assigning the overall usage
+					if found.Annotations == nil {
+						found.Annotations = make(map[string]string)
+					}
+					found.Labels = rq.Labels
+					found.Annotations[capsulev1beta1.UsedQuotaFor(resourceName)] = actual.String()
+					found.Annotations[capsulev1beta1.HardQuotaFor(resourceName)] = limit.String()
+					// Updating the Resource according to the actual.Cmp result
+					found.Spec.Hard = rq.Spec.Hard
+					return nil
+				})
+
+				return retryErr
+			})
+		})
+	}
+
+	if err = group.Wait(); err != nil {
+		// We had an error and we mark the whole transaction as failed
+		// to process it another time according to the Tenant controller back-off factor.
+		r.Log.Error(err, "Cannot update outer ResourceQuotas", "resourceName", resourceName.String())
+		err = fmt.Errorf("update of outer ResourceQuota items has failed: %s", err.Error())
+	}
+
+	return err
+}

controllers/tenant/rolebindings.go

@@ -0,0 +1,179 @@
+package tenant
+
+import (
+	"context"
+	"fmt"
+	"hash/fnv"
+	"strings"
+
+	"golang.org/x/sync/errgroup"
+	rbacv1 "k8s.io/api/rbac/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	capsulev1beta1 "github.com/clastix/capsule/api/v1beta1"
+	"github.com/clastix/capsule/controllers/rbac"
+)
+
+// Additional Role Bindings can be used in many ways: applying Pod Security Policies or giving
+// access to CRDs or specific API groups.
+func (r *Manager) syncAdditionalRoleBindings(tenant *capsulev1beta1.Tenant) (err error) {
+	// hashing the RoleBinding name due to DNS RFC-1123 applied to Kubernetes labels
+	hashFn := func(binding capsulev1beta1.AdditionalRoleBindingsSpec) string {
+		h := fnv.New64a()
+
+		_, _ = h.Write([]byte(binding.ClusterRoleName))
+
+		for _, sub := range binding.Subjects {
+			_, _ = h.Write([]byte(sub.Kind + sub.Name))
+		}
+
+		return fmt.Sprintf("%x", h.Sum64())
+	}
+	// getting requested Role Binding keys
+	var keys []string
+	for _, i := range tenant.Spec.AdditionalRoleBindings {
+		keys = append(keys, hashFn(i))
+	}
+
+	group := new(errgroup.Group)
+
+	for _, ns := range tenant.Status.Namespaces {
+		namespace := ns
+
+		group.Go(func() error {
+			return r.syncAdditionalRoleBinding(tenant, namespace, keys, hashFn)
+		})
+	}
+
+	return group.Wait()
+}
+
+func (r *Manager) syncAdditionalRoleBinding(tenant *capsulev1beta1.Tenant, ns string, keys []string, hashFn func(binding capsulev1beta1.AdditionalRoleBindingsSpec) string) (err error) {
+	var tenantLabel, roleBindingLabel string
+
+	if tenantLabel, err = capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{}); err != nil {
+		return
+	}
+
+	if roleBindingLabel, err = capsulev1beta1.GetTypeLabel(&rbacv1.RoleBinding{}); err != nil {
+		return
+	}
+
+	if err = r.pruningResources(ns, keys, &rbacv1.RoleBinding{}); err != nil {
+		return
+	}
+
+	for i, roleBinding := range tenant.Spec.AdditionalRoleBindings {
+		roleBindingHashLabel := hashFn(roleBinding)
+
+		target := &rbacv1.RoleBinding{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      fmt.Sprintf("capsule-%s-%d-%s", tenant.Name, i, roleBinding.ClusterRoleName),
+				Namespace: ns,
+			},
+		}
+
+		var res controllerutil.OperationResult
+		res, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, target, func() error {
+			target.ObjectMeta.Labels = map[string]string{
+				tenantLabel:      tenant.Name,
+				roleBindingLabel: roleBindingHashLabel,
+			}
+			target.RoleRef = rbacv1.RoleRef{
+				APIGroup: "rbac.authorization.k8s.io",
+				Kind:     "ClusterRole",
+				Name:     roleBinding.ClusterRoleName,
+			}
+			target.Subjects = roleBinding.Subjects
+
+			return controllerutil.SetControllerReference(tenant, target, r.Scheme)
+		})
+
+		r.emitEvent(tenant, target.GetNamespace(), res, fmt.Sprintf("Ensuring additional RoleBinding %s", target.GetName()), err)
+
+		if err != nil {
+			r.Log.Error(err, "Cannot sync Additional RoleBinding")
+		}
+		r.Log.Info(fmt.Sprintf("Additional RoleBindings sync result: %s", string(res)), "name", target.Name, "namespace", target.Namespace)
+		if err != nil {
+			return
+		}
+	}
+
+	return nil
+}
+
+// Each Tenant owner needs the admin Role attached to each Namespace, otherwise no actions on it can be performed.
+// Since RBAC is based on deny all first, some specific actions like editing Capsule resources are going to be blocked
+// via Dynamic Admission Webhooks.
+// TODO(prometherion): we could create a capsule:admin role rather than hitting webhooks for each action
+func (r *Manager) ownerRoleBinding(tenant *capsulev1beta1.Tenant) error {
+	// getting RoleBinding label for the mutateFn
+	var subjects []rbacv1.Subject
+
+	tl, err := capsulev1beta1.GetTypeLabel(&capsulev1beta1.Tenant{})
+	if err != nil {
+		return err
+	}
+
+	newLabels := map[string]string{tl: tenant.Name}
+
+	for _, owner := range tenant.Spec.Owners {
+		if owner.Kind == "ServiceAccount" {
+			splitName := strings.Split(owner.Name, ":")
+			subjects = append(subjects, rbacv1.Subject{
+				Kind:      owner.Kind.String(),
+				Name:      splitName[len(splitName)-1],
+				Namespace: splitName[len(splitName)-2],
+			})
+		} else {
+			subjects = append(subjects, rbacv1.Subject{
+				APIGroup: "rbac.authorization.k8s.io",
+				Kind:     owner.Kind.String(),
+				Name:     owner.Name,
+			})
+		}
+	}
+
+	list := make(map[types.NamespacedName]rbacv1.RoleRef)
+
+	for _, i := range tenant.Status.Namespaces {
+		list[types.NamespacedName{Namespace: i, Name: "namespace:admin"}] = rbacv1.RoleRef{
+			APIGroup: "rbac.authorization.k8s.io",
+			Kind:     "ClusterRole",
+			Name:     "admin",
+		}
+		list[types.NamespacedName{Namespace: i, Name: "namespace-deleter"}] = rbacv1.RoleRef{
+			APIGroup: "rbac.authorization.k8s.io",
+			Kind:     "ClusterRole",
+			Name:     rbac.DeleterRoleName,
+		}
+	}
+
+	for namespacedName, roleRef := range list {
+		target := &rbacv1.RoleBinding{
+			ObjectMeta: metav1.ObjectMeta{
+				Name:      namespacedName.Name,
+				Namespace: namespacedName.Namespace,
+			},
+		}
+
+		var res controllerutil.OperationResult
+		res, err = controllerutil.CreateOrUpdate(context.TODO(), r.Client, target, func() (err error) {
+			target.ObjectMeta.Labels = newLabels
+			target.Subjects = subjects
+			target.RoleRef = roleRef
+			return controllerutil.SetControllerReference(tenant, target, r.Scheme)
+		})
+
+		r.emitEvent(tenant, target.GetNamespace(), res, fmt.Sprintf("Ensuring Capsule RoleBinding %s", target.GetName()), err)
+
+		r.Log.Info("Role Binding sync result: "+string(res), "name", target.Name, "namespace", target.Namespace)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}