Merge pull request #8 from ContainerSolutions/upgrade-docker-build-pu…

…sh-action

Upgrade docker image publish actions to use docker/build-push-action@v2

.github/workflows/main.yml

@@ -42,18 +42,38 @@ jobs:
       run: |
         make coverage
 
-  publish:
+  publish_image:
     needs: [build]
     name: Publish docker image
     runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v') || startsWith(github.ref, 'refs/heads/master')
     steps:
-    - uses: actions/checkout@v2
-    - name: Push to Docker Hub
-      uses: docker/build-push-action@v1
-      if: startsWith(github.ref, 'refs/tags/v') || startsWith(github.ref, 'refs/heads/master')
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Docker meta
+      id: meta
+      uses: docker/metadata-action@v3
+      with:
+        images: |
+          containersol/prom-metrics-check
+        tags: |
+          type=ref,event=push tag
+          type=semver,pattern={{version}}
+          type=sha
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Login to DockerHub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USER }}
+        password: ${{ secrets.DOCKERHUB_PASS }}
+
+    - name: Build and push
+      uses: docker/build-push-action@v2
       with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-        repository: containersol/prom-metrics-check
-        tag_with_ref: true
-        tag_with_sha: true
+        context: .
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}