Build push

.github/workflows/build.yml

@@ -21,3 +21,56 @@ jobs:
 
       - name: Test
         run: go test -v ./...
+
+  push:
+    runs-on: ubuntu-latest
+    needs: [build]
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Get Image Metadata
+        id: image_metadata
+        run: |
+          DOCKER_IMAGE=ghcr.io/${{ github.event.repository.full_name }}
+          # Always tag latest
+          TAGS=$DOCKER_IMAGE:latest
+          # Add version tag
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+            TAGS=$TAGS,$DOCKER_IMAGE:$VERSION
+            # Add major and minor tag i.e for version 1.2.3, tag 1.2 and 1
+            if [[ $VERSION =~ ^[0-9]\.[0-9]\.[0-9]$ ]]; then
+              MINOR=${VERSION%.*}
+              MAJOR=${MINOR%.*}
+              TAGS="$TAGS,${DOCKER_IMAGE}:${MINOR},${DOCKER_IMAGE}:${MAJOR}"
+            fi
+          fi
+          echo "::set-output name=date::$(date +'%Y-%m-%dT%H:%M:%S')"
+          echo "::set-output name=tags::${TAGS}"
+
+      - name: Login to GHCR
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build/Push To GHCR
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: Dockerfile
+          push: true
+          tags: ${{ steps.image_metadata.outputs.tags }}
+          labels: |
+            org.opencontainers.image.title=${{ github.event.repository.name }}
+            org.opencontainers.image.description=${{ github.event.repository.description }}
+            org.opencontainers.image.url=${{ github.event.repository.html_url }}
+            org.opencontainers.image.source=${{ github.event.repository.html_url }}
+            org.opencontainers.image.version=latest
+            org.opencontainers.image.created=${{ steps.image_metadata.outputs.date }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}