Create Helm chart GitHub action

.github/workflows/release-helm-chart.yaml

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+name: Release Helm Chart
+
+on:
+  pull_request:
+    types:
+      - closed
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  release-helm-chart:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup golang for helmify
+        uses: actions/setup-go@v3
+        with:
+          go-version: '>=1.17.0'
+
+      - name: Configure Git
+        run: |
+          apt update && apt install git -y
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - uses: imranismail/setup-kustomize@v2
+      - run: |
+          go install github.com/arttor/helmify/cmd/helmify@latest
+          cd config/manager && kustomize edit set image controller=ghcr.io/strangelove-ventures/cosmos-operator:latest
+          cd ../../ && kustomize build config/default | helmify cosmos-operator && rm -rf ./charts/cosmos-operator && mv cosmos-operator ./charts/
+          git add ./charts/
+          git commit -m 'AUTOGENERATED: Update helm chart with latest kustomize output'
+      - name: Push changes # push the output folder to your repo
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: "${{ secrets.GITHUB_TOKEN }}"
+          force: true
+
+      - name: Install Helm
+        uses: azure/setup-helm@v3
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        with:
+          charts_dir: charts
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

charts/cosmos-operator/.helmignore

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+# 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/cosmos-operator/Chart.yaml

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+apiVersion: v2
+name: cosmos-operator
+description: A Helm chart for Kubernetes
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+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: "0.1.0"

charts/cosmos-operator/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cosmos-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 "cosmos-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 "cosmos-operator.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "cosmos-operator.labels" -}}
+helm.sh/chart: {{ include "cosmos-operator.chart" . }}
+{{ include "cosmos-operator.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "cosmos-operator.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "cosmos-operator.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "cosmos-operator.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "cosmos-operator.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}