Add GH actions for releases

.github/workflows/release.yaml

@@ -0,0 +1,65 @@
+on:
+  release:
+    types: [created]
+
+jobs:
+  docker-release:
+    name: Release Docker image
+    runs-on: ubuntu-latest
+    steps:
+      # Get the repository's code
+      - name: Checkout
+        uses: actions/checkout@v2
+      # https://github.com/docker/setup-qemu-action
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      # https://github.com/docker/setup-buildx-action
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Docker meta
+        id: build_meta
+        uses: docker/metadata-action@v3
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            jobilla/protoc-gen-go-appevents
+          # Docker tags based on the following events/attributes
+          tags: |
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm/v7
+          push: true
+          tags: ${{ steps.build_meta.outputs.tags }}
+          labels: ${{ steps.build_meta.outputs.labels }}
+  releases-matrix:
+    name: Release Go binary
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # build and publish in parallel: linux/386, linux/amd64, linux/arm64, windows/386, windows/amd64, darwin/amd64, darwin/arm64
+        goos: [linux, windows, darwin]
+        goarch: ["386", amd64, arm64]
+        exclude:
+          - goarch: "386"
+            goos: darwin
+          - goarch: arm64
+            goos: windows
+    steps:
+      - uses: actions/checkout@v3
+      - uses: wangyoucao577/[email protected]
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          goos: ${{ matrix.goos }}
+          goarch: ${{ matrix.goarch }}