Chart: Improve CI. (#12003)

.github/workflows/chart.yaml

@@ -0,0 +1,64 @@
+name: Chart
+
+on:
+  push:
+    branches:
+      - main
+      - release-*
+    paths:
+      - charts/ingress-nginx/Chart.yaml
+  
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Set up Python
+        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+        with:
+          python-version: 3.x
+
+      - name: Set up Helm
+        uses: azure/setup-helm@fe7b79cd5ee1e45176fcad797de68ecaf3ca4814 # v4.2.0
+
+      - name: Set up Helm Chart Testing
+        uses: helm/chart-testing-action@e6669bcd63d7cb57cb4380c33043eebe5d111992 # v2.6.1
+
+      - name: Set up Artifact Hub
+        run: |
+          curl --fail --location https://github.com/artifacthub/hub/releases/download/v1.19.0/ah_1.19.0_linux_amd64.tar.gz --output /tmp/ah.tar.gz
+          echo "0e430493521ce387ca04d79b26646a86f92886dbcceb44985bb71082a9530ca5  /tmp/ah.tar.gz" | shasum --check
+          sudo tar --extract --file /tmp/ah.tar.gz --directory /usr/local/bin ah
+
+      - name: Set up Git
+        run: |
+          git config --global user.name "${GITHUB_ACTOR}"
+          git config --global user.email "${GITHUB_ACTOR}@users.noreply.github.com"
+
+      - name: Checkout code
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        with:
+          fetch-depth: 0
+
+      - name: Lint chart
+        run: |
+          ct lint --config .ct.yaml
+          ah lint --path charts/ingress-nginx
+
+      - name: Release chart
+        uses: helm/chart-releaser-action@a917fd15b20e8b64b94d9158ad54cd6345335584 # v1.6.0
+        env:
+          CR_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CR_RELEASE_NAME_TEMPLATE: helm-chart-{{ .Version }}
+          CR_SKIP_EXISTING: true
+        with:
+          charts_dir: charts