Use more actions (#3)

* Using meta action

* Fix tag

* No description update action. See peter-evans/dockerhub-description/issues/10

.github/workflows/docker.yml

@@ -9,6 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
+    -
+      name: Checkout
+      uses: actions/checkout@v2
+
     - name: Login to Docker
       uses: docker/login-action@v1 
       with:
@@ -29,6 +33,19 @@ jobs:
         username: ${{ secrets.GITLAB_USER }}
         password: ${{ secrets.GITLAB_TOKEN }}
 
+
+    - name: Docker meta
+      id: meta
+      uses: docker/metadata-action@v3
+      with:
+        images: cyb3rjak3/pypy-flask,ghcr.io/cyb3r-jak3/pypy-flask,registry.gitlab.com/cyb3r-jak3/pypy-flask
+        tags: |
+          type=ref,event=branch
+          type=ref,event=pr
+          type=semver,pattern={{version}}
+          type=semver,pattern={{major}}.{{minor}}
+          type=sha
+
     - name: Set up QEMU
       uses: docker/[email protected]
 
@@ -50,17 +67,4 @@ jobs:
         cache-to: type=local,dest=/tmp/.buildx-cache
         push: ${{ github.ref == 'refs/heads/main' }}
         file: Dockerfile
-        tags: |
-          cyb3rjak3/pypy-flask:latest
-          ghcr.io/cyb3r-jak3/pypy-flask:latest
-          registry.gitlab.com/cyb3r-jak3/pypy-flask:latest
-    # -
-    #   name: Update repo description
-    #   if: ${{ github.ref == 'refs/heads/main' }}
-    #   uses: peter-evans/dockerhub-description@v2
-    #   with:
-    #     readme-filepath: ./Readme.md
-    #     username: ${{ secrets.DOCKER_USERNAME }}
-    #     password: ${{ secrets.DOCKER_PASSWORD }}
-    #     repository: cyb3rjak3/pypy-flask
-    #     short-description: ${{ github.event.repository.description }}
+        tags: ${{ steps.meta.outputs.tags }}