feat: add helm publish chart action

Signed-off-by: Anthony Rabbito <[email protected]>

.github/workflows/charts-release-oci.yaml

@@ -0,0 +1,45 @@
+name: "Charts: Release to GHCR OCI"
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  release-charts:
+    name: Release charts
+    permissions:
+      contents: write
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v4
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          skip_upload: true
+
+      - name: Push Charts to GHCR
+        run: |
+          for pkg in .cr-release-packages/*; do
+            if [ -z "${pkg:-}" ]; then
+              break
+            fi
+            helm push "${pkg}" oci://ghcr.io/${{ github.repository_owner }}/${{ github.repository }}/chart
+          done