Add example github workflow

.github/workflows/release-artifacts.yml

@@ -0,0 +1,109 @@
+name: Release Docker image
+
+on:
+    workflow_dispatch: { }
+    push:
+      branches:
+        - "main"
+
+env:
+    # Default image for the Chart
+    DOCKER_IMAGE_NAME: otel-collector
+    DOCKER_REGISTRY: ghcr.io/${{ github.repository }}
+    DOCKER_BUILD_DIR: '.'
+
+permissions: {}
+
+jobs:
+  compile:
+    runs-on: ubuntu-latest
+    outputs:
+      artifact: ${{ steps.artifact.outputs.artifact-id }}
+      version: ${{ steps.versions.outputs.version }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Setup golang stable
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: Get build versions
+      id: versions
+      run: |
+        awk -F':' '/^[[:blank:]]+otelcol_version[[:blank:]]*:/{ gsub("\"","",$2); gsub(" ", "", $2); print "otelcol-version="$2 }' builder-config.yaml >> $GITHUB_OUTPUT
+        awk -F':' '/^[[:blank:]]+output_path[[:blank:]]*:/{ gsub("\"","",$2); gsub(" ", "", $2); print "build-path="$2 }' builder-config.yaml >> $GITHUB_OUTPUT
+        awk -F':' '/^[[:blank:]]+name[[:blank:]]*:/{ gsub("\"","",$2); gsub(" ", "", $2); print "build-name="$2 }' builder-config.yaml >> $GITHUB_OUTPUT
+        awk -F':' '/^[[:blank:]]+version[[:blank:]]*:/{ gsub("\"","",$2); gsub(" ", "", $2); print "version="$2 }' builder-config.yaml >> $GITHUB_OUTPUT
+
+    - name: Download the collector builder
+      run: |
+        curl -Ss -fL -o ocb https://github.com/open-telemetry/opentelemetry-collector/releases/download/cmd%2Fbuilder%2Fv${VERSION}/ocb_${VERSION}_linux_amd64
+        chmod +x ocb
+      env:
+        VERSION: "${{ steps.versions.outputs.otelcol-version }}"
+
+    - name: Build the OTEL collectory binary
+      run: |
+        ./ocb --config builder-config.yaml
+
+    - name: Archive binary
+      id: artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: otelcol-${{ steps.versions.outputs.version }}
+        retention-days: 1
+        path: "${{ steps.versions.outputs.build-path }}/${{ steps.versions.outputs.build-name }}"
+        if-no-files-found: error
+        overwrite: true
+
+  build-image:
+    permissions:
+      contents: read
+      packages: write
+    needs:
+    - compile
+    if: ${{ github.event_name != 'pull_request' }}
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - uses: actions/download-artifact@v4
+      with:
+        name: otelcol-${{ needs.compile.outputs.version }}
+        path: otelcol-dev
+
+    - name: Get metadata for Docker image
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: |
+          ghcr.io/${{ github.repository }}/${{ env.DOCKER_IMAGE_NAME }}
+        tags: |
+          type=raw,value=latest,enable={{is_default_branch}}
+          type=ref,event=tag
+          type=ref,event=branch
+          type=sha
+
+    - name: Log in to the GitHub Container registry
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and push to Github Packages
+      uses: docker/build-push-action@v5
+      with:
+        context: ${{ env.DOCKER_BUILD_DIR }}
+        push: ${{ github.event_name != 'pull_request' }}
+        tags: |
+          ${{ steps.meta.outputs.tags }}
+          ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_IMAGE_NAME }}:${{ needs.compile.outputs.version }}
+        labels: ${{ steps.meta.outputs.labels }}