feat: Add helm chart

Signed-off-by: Joonas Bergius <[email protected]>

.github/workflows/chart.yaml

@@ -0,0 +1,96 @@
+name: chart
+
+env:
+  HELM_VERSION: v3.14.0
+
+on:
+  push:
+    tags:
+      - 'chart-v[0-9].[0-9]+.[0-9]+'
+  pull_request:
+    paths:
+      - 'charts/**'
+      - '.github/workflows/chart.yml'
+
+jobs:
+  validate:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Fetch main branch for chart-testing
+        run: |
+          git fetch origin main:main
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: ${{ env.HELM_VERSION }}
+
+      # Used by helm chart-testing below
+      - name: Set up Python
+        uses: actions/[email protected]
+        with:
+          python-version: '3.12.2'
+
+      - name: Set up chart-testing
+        uses: helm/[email protected]
+        with:
+          version: v3.10.1
+          yamllint_version: 1.35.1
+          yamale_version: 5.0.0
+
+      - name: Run chart-testing (lint)
+        run: |
+          ct lint --config charts/wasmcloud-operator/ct.yaml
+
+      - name: Create kind cluster
+        uses: helm/[email protected]
+        with:
+          version: "v0.22.0"
+
+      - name: Run chart-testing (install)
+        run: |
+          ct install --config charts/wasmcloud-operator/ct.yaml
+
+  publish:
+    if: ${{ startsWith(github.ref, 'refs/tags/chart-v') }}
+    runs-on: ubuntu-22.04
+    needs: validate
+    permissions:
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v4
+        with:
+          version: ${{ env.HELM_VERSION }}
+
+      - name: Package
+        run: |
+          helm package chart -d .helm-charts
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Lowercase the organization name for ghcr.io
+        run: |
+          echo "GHCR_REPO_NAMESPACE=${GITHUB_REPOSITORY_OWNER,,}" >>${GITHUB_ENV}
+
+      - name: Publish
+        run: |
+          for chart in .helm-charts/*; do
+            if [ -z "${chart:-}" ]; then
+              break
+            fi
+            helm push "${chart}" "oci://ghcr.io/${{ env.GHCR_REPO_NAMESPACE }}"
+          done

charts/wasmcloud-operator/.helmignore

@@ -0,0 +1,23 @@
+# 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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/wasmcloud-operator/Chart.yaml

@@ -0,0 +1,16 @@
+apiVersion: v2
+name: wasmcloud-operator
+description: A Helm chart for deploying the wasmcloud-operator on Kubernetes
+
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.1.1"

charts/wasmcloud-operator/ct.yaml

@@ -0,0 +1,3 @@
+validate-maintainers: false
+target-branch: main # TODO: Remove this once chart-testing 3.10.1+ is released
+helm-extra-args: --timeout 60s

charts/wasmcloud-operator/templates/_helpers.tpl

@@ -0,0 +1,91 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "wasmcloud-operator.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "wasmcloud-operator.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "wasmcloud-operator.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Namespace that's used for setting up cluster role bindings and such
+*/}}
+{{- define "wasmcloud-operator.namespace" -}}
+{{- default "default" .Release.Namespace }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "wasmcloud-operator.labels" -}}
+helm.sh/chart: {{ include "wasmcloud-operator.chart" . }}
+{{ include "wasmcloud-operator.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "wasmcloud-operator.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "wasmcloud-operator.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "wasmcloud-operator.service-account" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "wasmcloud-operator.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the cluster role to use
+*/}}
+{{- define "wasmcloud-operator.cluster-role" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "wasmcloud-operator.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create the name of the cluster role binding to use
+*/}}
+{{- define "wasmcloud-operator.cluster-role-binding" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "wasmcloud-operator.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/wasmcloud-operator/templates/cluster-role.yaml

@@ -0,0 +1,106 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "wasmcloud-operator.cluster-role" . }}
+  labels:
+    {{- include "wasmcloud-operator.labels" . | nindent 4 }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+      - services
+      - configmaps
+      - serviceaccounts
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - delete
+      - patch
+      - update
+  - apiGroups:
+      - apps
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - delete
+      - patch
+      - update
+  - apiGroups:
+      - rbac.authorization.k8s.io
+    resources:
+      - rolebindings
+      - roles
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - delete
+      - patch
+  - apiGroups:
+      - apiextensions.k8s.io
+    resources:
+      - customresourcedefinitions
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - delete
+      - patch
+  - apiGroups:
+      - apiregistration.k8s.io
+    resources:
+      - apiservices
+    verbs:
+      - create
+      - delete
+      - get
+      - list
+      - patch
+      - update
+  - apiGroups:
+      - k8s.wasmcloud.dev
+    resources:
+      - wasmcloudhostconfigs
+      - wasmcloudhostconfigs/status
+    verbs:
+      - "*"
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "wasmcloud-operator.cluster-role-binding" . }}
+  labels:
+    {{- include "wasmcloud-operator.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "wasmcloud-operator.cluster-role" . }}
+subjects:
+  - apiGroup: ""
+    kind: ServiceAccount
+    name: {{ include "wasmcloud-operator.service-account" . }}
+    namespace: {{ include "wasmcloud-operator.namespace" . }}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "wasmcloud-operator.cluster-role-binding" . }}-delegator
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:auth-delegator
+subjects:
+  - apiGroup: ""
+    kind: ServiceAccount
+    name: {{ include "wasmcloud-operator.service-account" . }}
+    namespace: {{ include "wasmcloud-operator.namespace" . }}