ci: build workflow to release artifacts and multi-platform image

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/build.yml

@@ -0,0 +1,85 @@
+name: build
+
+on:
+  push:
+    branches:
+      - 'main'
+      - 'release/*'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - '*'
+
+env:
+  DOCKERHUB_SLUG: distribution/distribution
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: |
+            ${{ env.DOCKERHUB_SLUG }}
+          tags: |
+            type=semver,pattern={{version}}
+            type=ref,event=pr
+            type=edge
+          labels: |
+            org.opencontainers.image.title=Distribution
+            org.opencontainers.image.description=The toolkit to pack, ship, store, and deliver container content
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build artifacts
+        uses: docker/bake-action@v1
+        with:
+          targets: artifact-all
+      -
+        name: Move artifacts
+        run: |
+          mv ./bin/**/* ./bin/
+      -
+        name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: registry
+          path: ./bin/*
+          if-no-files-found: error
+      -
+        name: Build image
+        uses: docker/bake-action@v1
+        with:
+          files: |
+            ./docker-bake.hcl
+            ${{ steps.meta.outputs.bake-file }}
+          targets: image-all
+          push: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/') }}
+      -
+        name: GitHub Release
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          draft: true
+          files: |
+            bin/*.tar.gz
+            bin/*.zip
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}