Feature: add Helm chart install mode

.github/workflows/chart-test.yaml

@@ -0,0 +1,36 @@
+---
+name: Chart Testing
+on: [push]
+jobs:
+  kind:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.7.2
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --target-branch ${{ github.ref_name }})
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Create kind cluster
+        uses: helm/kind-action@v1.2.0
+        if: steps.list-changed.outputs.changed == 'true'
+
+      - name: Run chart-testing (install)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct install --target-branch ${{ github.ref_name }} --charts ./charts/

.github/workflows/e2e-test.yaml

@@ -28,7 +28,9 @@ jobs:
             GO_BUILDER_IMG=golang:1.18
           tags: |
             ghcr.io/grafana/k6-operator:${{ github.sha }}
-  kind:
+
+  kind-kustomize:
+    needs: ["docker"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@master
@@ -55,3 +57,32 @@ jobs:
           kubectl wait --for=condition=complete --timeout=180s job/k6-sample-initializer
           kubectl delete configmap crocodile-stress-test
           kubectl delete -f e2e/test.yaml
+
+  kind-helm:
+    needs: ["docker"]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.7.2
+
+      - name: Create kind cluster
+        uses: helm/kind-action@v1.2.0
+
+      - name: Testing
+        run: |
+          helm install k6-operator ./charts/ -f ./charts/values.yaml --set manager.image.tag=${{github.sha}}
+          kubectl create configmap crocodile-stress-test --from-file e2e/test.js
+          kubectl apply -f e2e/test.yaml
+          sleep 30
+          kubectl get namespaces
+          kubectl get jobs -A
+          kubectl wait --for=condition=complete --timeout=180s job/k6-sample-1
+          kubectl delete configmap crocodile-stress-test
+          kubectl delete -f e2e/test.yaml

.github/workflows/helmlint.yaml

@@ -0,0 +1,26 @@
+---
+name: Helm Lint
+on: [push]
+jobs:
+  lintAllTheThings:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.7.2
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.2.0
+
+      - name: Run chart-testing (lint)
+        run: ct lint --target-branch ${{ github.ref_name }} --charts ./charts/

.github/workflows/yamllint.yaml

@@ -10,3 +10,6 @@ jobs:
       - uses: actions/checkout@v1
       - name: yaml-lint
         uses: ibiqlik/action-yamllint@v3
+        with:
+          file_or_dir: config/**/*.yaml e2e/*.yaml
+          config_file: .yamllint.yaml

.yamllint.yaml

@@ -2,6 +2,7 @@
 extends: default
 ignore: |
   /config/crd/bases/*
+  /charts/*
 rules:
   line-length: disable
   comments:

Makefile

@@ -14,7 +14,8 @@ BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL)
 # Image to use for building Go
 GO_BUILDER_IMG ?= "golang:1.18"
 # Image URL to use all building/pushing image targets
-IMG ?= ghcr.io/grafana/k6-operator:latest
+IMG_NAME ?= ghcr.io/grafana/k6-operator
+IMG_TAG ?= latest
 # Default dockerfile to build
 DOCKERFILE ?= "Dockerfile.controller"
 # Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
@@ -36,6 +37,7 @@ GOOS=$(shell go env GOOS)
 GOARCH=$(shell go env GOARCH)
 KUBEBUILDER_ASSETS_ROOT=/tmp
 KUBEBUILDER_ASSETS=$(KUBEBUILDER_ASSETS_ROOT)/kubebuilder/bin
+
 test: generate fmt vet manifests
 	export KUBEBUILDER_ASSETS=$(KUBEBUILDER_ASSETS); setup-envtest use --use-env -p env $(ENVTEST_K8S_VERSION); go test ./... -coverprofile cover.out
 
@@ -77,7 +79,7 @@ uninstall: manifests kustomize
 
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
 deploy: manifests kustomize
-	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG_NAME}:${IMG_TAG}
 	$(KUSTOMIZE) build config/default | kubectl apply -f -
 
 # Delete operator from a cluster
@@ -102,11 +104,11 @@ generate: controller-gen
 
 # Build the docker image
 docker-build: test
-	docker build . -t ${IMG} -f ${DOCKERFILE} --build-arg GO_BUILDER_IMG=${GO_BUILDER_IMG}
+	docker build . -t ${IMG_NAME}:${IMG_TAG} -f ${DOCKERFILE} --build-arg GO_BUILDER_IMG=${GO_BUILDER_IMG}
 
 # Push the docker image
 docker-push:
-	docker push ${IMG}
+	docker push ${IMG_NAME}:${IMG_TAG}
 
 # find or download controller-gen
 # download controller-gen if necessary
@@ -144,11 +146,46 @@ endif
 .PHONY: bundle
 bundle: manifests
 	operator-sdk generate kustomize manifests -q
-	cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG_NAME}:${IMG_TAG}
 	$(KUSTOMIZE) build config/manifests | operator-sdk generate bundle -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS)
 	operator-sdk bundle validate ./bundle
 
 # Build the bundle image.
 .PHONY: bundle-build
 bundle-build:
 	docker build -f bundle.Dockerfile -t $(BUNDLE_IMG) .
+
+# ===============================================================
+# This section is only about the HELM deployment of the operator
+# ===============================================================
+
+e2e-helm: deploy-helm
+	kubectl create configmap crocodile-stress-test --from-file e2e/test.js
+	kubectl apply -f e2e/test.yaml
+
+# Deploy controller in the configured Kubernetes cluster in ~/.kube/config
+deploy-helm: manifests helm
+	$(HELM) upgrade --install --wait k6-operator ./charts -f ./charts/values.yaml --set manager.image.name=$(IMG_NAME) --set manager.image.tag=$(IMG_TAG)
+
+helm-template: manifests helm
+	$(HELM) template k6-operator ./charts -f ./charts/values.yaml --set manager.image.name=$(IMG_NAME) --set manager.image.tag=$(IMG_TAG)
+
+# Delete operator from a cluster
+delete-helm: manifests helm
+	$(HELM) uninstall k6-operator
+
+helm:
+ifeq (, $(shell which helm))
+	@{ \
+	set -e ;\
+	HELM_GEN_TMP_DIR=$$(mktemp -d) ;\
+	cd $$HELM_GEN_TMP_DIR ;\
+	curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
+	chmod 700 get_helm.sh ;\
+	./get_helm.sh ;\
+	rm -rf $$HELM_GEN_TMP_DIR ;\
+	}
+HELM=$(shell which helm)
+else
+HELM=$(shell which helm)
+endif

README.md

@@ -326,8 +326,8 @@ spec:
 In other words, `file` option must be the correct entrypoint for `k6 run`.
 
 ### Using extensions
-By default, the operator will use `grafana/k6:latest` as the container image for the test jobs. 
-If you want to use [extensions](https://k6.io/docs/extensions/get-started/explore/) built with [xk6](https://github.com/grafana/xk6) you'll need to create your own image and override the `image` property on the `K6` kubernetes resource. 
+By default, the operator will use `grafana/k6:latest` as the container image for the test jobs.
+If you want to use [extensions](https://k6.io/docs/extensions/get-started/explore/) built with [xk6](https://github.com/grafana/xk6) you'll need to create your own image and override the `image` property on the `K6` kubernetes resource.
 
 For example, create a `Dockerfile` with the following content:
 
@@ -346,7 +346,7 @@ RUN xk6 build \
 FROM grafana/k6:latest
 COPY --from=builder /k6 /usr/bin/k6
 ```
-Build the image based on this `Dockerfile` by executing: 
+Build the image based on this `Dockerfile` by executing:
 ```bash
 docker build -t k6-extended:local .
 ```
@@ -503,7 +503,7 @@ make delete
 #### Run e2e Tests
 
 - [install kind and create a k8s cluster](https://kind.sigs.k8s.io/docs/user/quick-start/) (or create your own dev cluster)
-- `make e2e`
+- `make e2e` for kustomize and `make e2e-helm` for helm
 - validate tests have been run
 - `make e2e-cleanup`
 

charts/.helmdocsignore

@@ -0,0 +1 @@
+examples/

charts/.helmignore

@@ -0,0 +1,22 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/.yamllint

@@ -0,0 +1,21 @@
+---
+extends: default
+
+ignore: |
+  templates/*.yaml
+  repository-metadata.yaml
+
+rules:
+  document-start: disable
+  braces:
+    max-spaces-inside: 1
+    level: error
+  brackets:
+    max-spaces-inside: 1
+    level: error
+  empty-lines:
+    max: 1
+  indentation:
+    spaces: 2
+  line-length:
+    max: 200

charts/Chart.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+appVersion: "0.0.10"
+description: A Helm chart to install the k6 operator
+name: k6-operator
+version: 0.0.1
+kubeVersion: ">=1.16.0-0"
+home: https://k6.io
+sources:
+  - https://github.com/grafana/k6-operator
+keywords:
+  - load-testing
+  - smoke-testing
+  - stress-testing
+  - soak-testing
+  - kubernetes
+  - distributed-testing
+maintainers:
+  - name: yorugac
+    email: yorugac@gmail.com
+icon: https://raw.githubusercontent.com/grafana/k6-docs/main/static/images/icon.png

charts/README.md

@@ -0,0 +1,57 @@
+# k6-operator
+
+![Version: 0.0.1](https://img.shields.io/badge/Version-0.0.1-informational?style=flat-square) ![AppVersion: 0.0.6](https://img.shields.io/badge/AppVersion-0.0.6-informational?style=flat-square)
+
+A Helm chart to install the k6 operator
+
+**Homepage:** <https://k6.io>
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| yorugac | <yorugac@gmail.com> |  |
+
+## Source Code
+
+* <https://github.com/grafana/k6-operator>
+
+## Requirements
+
+Kubernetes: `>=1.16.0-0`
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| affinity | object | `{}` | Affinity to be applied on all containers |
+| authProxy.enabled | bool | `true` | enables the protection of /metrics endpoint. (https://github.com/brancz/kube-rbac-proxy) |
+| authProxy.image.name | string | `"gcr.io/kubebuilder/kube-rbac-proxy"` | rbac-proxy image name |
+| authProxy.image.pullPolicy | string | `"IfNotPresent"` | pull policy for the image can be Always, Never, IfNotPresent (default: IfNotPresent) |
+| authProxy.image.tag | string | `"v0.5.0"` | rbac-proxy image tag |
+| authProxy.livenessProbe | object | `{}` | Liveness probe in Probe format |
+| authProxy.readinessProbe | object | `{}` | Readiness probe in Probe format |
+| authProxy.resources | object | `{}` | rbac-proxy resource limitation/request |
+| controlPlane | string | `"controller-manager"` |  |
+| customAnnotations | object | `{}` | Custom Annotations to be applied on all resources |
+| customLabels | object | `{}` | Custom Label to be applied on all resources |
+| manager.env | object | `{}` | EEnvironment variables to be applied on the controller |
+| manager.image.name | string | `"ghcr.io/grafana/operator"` | controller-manager image name |
+| manager.image.pullPolicy | string | `"Always"` | pull policy for the image possible values Always, Never, IfNotPresent (default: Always) |
+| manager.image.tag | string | `"latest"` | controller-manager image tag |
+| manager.livenessProbe | object | `{}` | Liveness probe in Probe format |
+| manager.readinessProbe | object | `{}` | Readiness probe in Probe format |
+| manager.resources | object | `{"limits":{"cpu":"100m","memory":"100Mi"},"requests":{"cpu":"100m","memory":"50Mi"}}` | controller-manager Resources definition |
+| manager.resources.limits.cpu | string | `"100m"` | controller-manager CPU limit (Max) |
+| manager.resources.limits.memory | string | `"100Mi"` | controller-manager Memory limit (Max) |
+| manager.resources.requests.cpu | string | `"100m"` | controller-manager CPU request (Min) |
+| manager.resources.requests.memory | string | `"50Mi"` | controller-manager Memory request (Min) |
+| manager.serviceAccount.create | bool | `true` | create the service account (default: true) |
+| manager.serviceAccount.name | string | `"k6-operator-controller"` | kubernetes service account for the k6 manager |
+| namespace.create | bool | `true` | create the namespace (default: true) |
+| nodeSelector | object | `{}` | Node Selector to be applied on all containers |
+| prometheus.enabled | bool | `false` | enables the prometheus metrics scraping (default: false) |
+| tolerations | object | `{}` | Tolerations to be applied on all containers |
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs v1.11.0](https://github.com/norwoodj/helm-docs/releases/v1.11.0)

charts/README.md.gotmpl

@@ -0,0 +1,17 @@
+{{ template "chart.header" . }}
+
+{{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}{{ template "chart.appVersionBadge" . }}
+
+{{ template "chart.description" . }}
+
+{{ template "chart.homepageLine" . }}
+
+{{ template "chart.maintainersSection" . }}
+
+{{ template "chart.sourcesSection" . }}
+
+{{ template "chart.requirementsSection" . }}
+
+{{ template "chart.valuesSection" . }}
+
+{{ template "helm-docs.versionFooter" . }}