Rewrite CI logic with metadata-action and build-push-action

.github/workflows/main.yml

@@ -7,6 +7,8 @@ on:
     branches: master
   push:
     branches: master
+  release:
+    types: [published, edited]
 
 jobs:
   hadolint:
@@ -18,7 +20,7 @@ jobs:
       uses: hadolint/hadolint-action@v1.5.0
       with:
         ignore: DL3018
-  buildx:
+  docker:
     runs-on: ubuntu-latest
     steps:
       -
@@ -31,18 +33,29 @@ jobs:
       -
         name: Print builder available platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
+      -
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: serjs/go-socks5-proxy
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'master') }}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{raw}}
       -
         name: Dockerhub login
         uses: docker/login-action@v2
+        if: github.event_name != 'pull_request'
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       -
         name: Run Buildx for amd64, armv7, arm64 architectures
-        run: |
-          docker buildx build \
-            --platform linux/amd64,linux/arm/v7,linux/arm64 \
-            --output "type=image,push=false" \
-            --push \
-            --tag "$DOCKERHUB_REPOSITORY:latest" \
-            .
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm/v7,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/release.yml

@@ -1,38 +0,0 @@
-name: "Release tag"
-env:
-  DOCKERHUB_REPOSITORY: serjs/go-socks5-proxy
-
-on:
-  release:
-    # Only use the types keyword to narrow down the activity types that will trigger your workflow.
-    types: [published, edited]
-
-jobs:
-  buildx:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v1
-      -
-        name: Set up Docker Buildx
-        id: buildx
-        uses: crazy-max/ghaction-docker-buildx@v1.1.0
-      -
-        name: Release version
-        run: echo "RELEASE_VERSION=${GITHUB_REF:10}" >> $GITHUB_ENV
-      -
-        name: Print release version
-        run: echo ${{ env.RELEASE_VERSION }}
-      -
-        name: Dockerhub login
-        run: docker login -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_PASSWORD }}
-      -
-        name: Run Buildx for amd64, armv7, arm64 architectures
-        run: |
-          docker buildx build \
-            --platform linux/amd64,linux/arm/v7,linux/arm64 \
-            --output "type=image,push=false" \
-            --push \
-            --tag "$DOCKERHUB_REPOSITORY:$RELEASE_VERSION" \
-            .