Merge pull request fluxcd#15 from fluxcd/ci-release

ci: Add release workflow

.github/workflows/release.yml

@@ -0,0 +1,49 @@
+name: release
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-push:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Kustomize
+        uses: ./.github/actions/kustomize
+      - name: Generate release asset
+        run: |
+          mkdir -p config/release
+          cp config/default/* config/release
+          cd config/release
+          kustomize edit set image fluxcd/source-controller=fluxcd/source-controller:${{ github.ref }}
+          kustomize build . > source-controller.yaml
+      - name: Push image
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          repository: fluxcd/source-controller
+          tag_with_ref: true
+      - name: Create release
+        id: create_release
+        uses: actions/create-release@latest
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: false
+          prerelease: true
+          body: |
+            [CHANGELOG](https://github.com/fluxcd/source-controller/blob/master/CHANGELOG.md)
+      - name: Upload artifacts
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./config/release/source-controller.yaml
+          asset_name: source-controller.yaml
+          asset_content_type: text/plain

.gitignore

@@ -14,3 +14,4 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
 bin/
+config/release/