feat(ci): add workflows for helm chart, move files around

.github/workflows/chart/pull-request-helm.yml

@@ -0,0 +1,53 @@
+name: pull-request-validation
+
+on:
+  pull_request:
+    branches:
+      - main
+      - feature/pr-action
+
+jobs:
+  build_lint_validate_diff:
+    name: lint, validate and diff from main
+    permissions: write-all
+    runs-on: ubuntu-latest
+    container:
+      image: alpine/helm:3.14.3
+    steps:
+      - name: checkout pr head
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: install chart dependencies
+        run: helm dependency build charts/readur
+
+      - name: lint helm chart
+        run: helm lint charts/readur --set persistence.data.existingClaim=test-pvc
+
+      - name: prepare
+        run: mkdir -p charts/readur/build
+      - name: create full manifest from pr head
+        run: helm template readur charts/readur --set persistence.data.existingClaim=test-pvc > charts/readur/build/manifest.yaml
+
+      - name: checkout main
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: main
+          path: main
+
+      - name: install chart dependencies
+        run: helm dependency build main/charts/readur
+
+      - name: prepare
+        run: mkdir -p main/charts/readur/build
+      - name: create full manifest from main
+        run: helm template readur main/charts/readur --set persistence.data.existingClaim=test-pvc > main/charts/readur/build/manifest.yaml
+
+      - name: create diff comment
+        uses: int128/diff-action@v1
+        with:
+          base: main/charts/readur/build
+          head: charts/readur/build
+          comment-header: "## Changes in Final Manifest"

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

@@ -0,0 +1,26 @@
+name: release
+
+on:
+  push:
+    tags:
+      - "chart-v*"
+
+jobs:
+  release:
+    permissions: write-all
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: configure git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: run chart-releaser
+        uses: helm/chart-releaser-action@v1.5.0
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"