add CI to publish supergraph OCI

.github/workflows/schema-compose.yaml

@@ -28,19 +28,47 @@ jobs:
           name: supergraph.graphql
           path: supergraph.graphql
 
+
+  publish:
+    # Deduplicate jobs from pull requests and branch pushes within the same repo.
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository
+    needs:
+      - generate
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      matrix:
+        chart:
+          - supergraph
+    steps:
+      - name: Setup Helm
+        uses: azure/setup-helm@v4.0.0
+
+      - name: Install Rover CLI
+        run: |
+          curl -sSL https://rover.apollo.dev/nix/v0.23.0-rc.3 | sh
+          echo "$HOME/.rover/bin" >> $GITHUB_PATH
+
+      - name: Download Schema Artifact
+        uses: actions/download-artifact@v4.1.7
+        with:
+          name: supergraph.graphql     
+
       - name: Generate Helm Chart
         run: |
-          mkdir -p supergraph/templates
-          cat <<EOF > supergraph/Chart.yaml
+          mkdir -p ${{ matrix.chart }}/templates
+          cat <<EOF > ${{ matrix.chart }}/Chart.yaml
           apiVersion: v2
           name: supergraph
           version: 0.1.0
           EOF
 
-          cat <<EOF > supergraph/values.yaml
+          cat <<EOF > ${{ matrix.chart }}/values.yaml
           EOF
 
-          cat <<EOF > supergraph/templates/supergraph-configmap.yaml
+          cat <<EOF > ${{ matrix.chart}}/templates/supergraph-configmap.yaml
           apiVersion: v1
           kind: ConfigMap
           metadata:
@@ -49,10 +77,22 @@ jobs:
             supergraph.graphql: |
           EOF
 
-          sed 's/^/    /' supergraph.graphql >> supergraph/templates/supergraph-configmap.yaml
-        
-      - name: testing view
-        run: |
-          ls 
-          cat supergraph/templates/supergraph-configmap.yaml
+          sed 's/^/    /' supergraph.graphql >> ${{ matrix.chart }}/templates/supergraph-configmap.yaml
+
+      - name: Package Chart
+        run: helm package ${{ matrix.chart }}
+
+      - name: Generate Image Name
+        run: echo IMAGE_REPOSITORY=oci://ghcr.io/$(echo "${{ github.repository }}-${{ matrix.chart }}" | tr '[:upper:]' '[:lower:]' | tr '[_]' '[\-]') >> $GITHUB_ENV
+
+      - name: Log in to GitHub Docker Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3.0.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Publish Chart
+        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+        run: helm push $(ls ${{ matrix.chart }}-*.tgz) ${{ env.IMAGE_REPOSITORY }}