Fix build_test

Author: ayufan

.github/workflows/build_test.yaml

@@ -42,6 +42,8 @@ jobs:
           echo "TAG=ref-${{ github.ref_name }}" >> $GITHUB_ENV;
         fi
     - name: Run docker for ${{matrix.docker_arch}}
+      env:
+        TAG: ${{ env.TAG }}
       run: make ${{matrix.docker_arch}}-docker
 
     # Push Artifacts to GitHub
@@ -84,3 +86,42 @@ jobs:
       with:
         name: artifact-${{ matrix.docker_arch }}-${{ env.TAG }}
         path: release/
+
+  manifest:
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Set repository name
+      if: vars.DOCKERHUB_TEST_REGISTRY
+      run:
+        echo "REGISTRY=${{ vars.DOCKERHUB_TEST_REGISTRY }}" >> $GITHUB_ENV;
+        if [[ -n "${{ github.event.pull_request.number }}" ]]; then
+          echo "TAG=github-pr-${{ github.event.pull_request.number }}" >> $GITHUB_ENV;
+        else
+          echo "TAG=ref-${{ github.ref_name }}" >> $GITHUB_ENV;
+        fi
+    - name: Login to Docker Hub
+      if: vars.DOCKERHUB_TEST_REGISTRY
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKERHUB_TEST_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TEST_TOKEN }}
+    - name: Run dockerhub-manifest
+      run: make dockerhub-manifest
+    - name: Comment image name on PR
+      if: github.event_name == 'pull_request'
+      env:
+        REGISTRY: ${{ env.REGISTRY }}
+        TAG: ${{ env.TAG }}
+      uses: actions/github-script@v7
+      with:
+        script: |
+          const imageName = `${{ env.REGISTRY }}:${{ env.TAG }}`;
+          const body = `✅ Docker image pushed: \`${imageName}\``;
+
+          await github.rest.issues.createComment({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            issue_number: context.issue.number,
+            body: body
+          });