fix: Manage legacy docker building on Workflows

Co-Authored-By: Sebastián Vargas <sebastian.varbel@gmail.com>

.github/workflows/release-docker-images.yaml

@@ -19,13 +19,32 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
+      - id: read_tag
+        name: Read release tag name (mostly vx.x.x)
+        run: |
+          if [ "${{ github.event_name }}" = "release" ]; then
+            export TAG="${{ github.ref_name }}"
+          elif [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            export TAG="${{ inputs.release }}"
+          fi
+
+          echo "release_tag=${TAG}" >> "$GITHUB_OUTPUT"
+
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          ref: ${{ steps.read_tag.outputs.release_tag }}
+
+      - name: Read Go version from go.mod
+        id: read_go_version
+        run: |
+          go_version_raw=$(grep "^go " go.mod | awk '{print $2}')
+          echo "go_version=${go_version_raw}" >> "$GITHUB_OUTPUT"
 
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.21
+          go-version: '${{ steps.read_go_version.outputs.go_version }}'
 
       - name: Set up QEMU
         id: qemu
@@ -45,13 +64,17 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push
+      - id: build
+        name: Build and push Docker images
+        env:
+          RELEASE_TAG: ${{ steps.read_tag.outputs.release_tag }}
         run: |
-          if [ "${{ github.event_name }}" = "release" ]; then
-            export TAG="${{ github.ref_name }}"
-          elif [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            export TAG="${{ inputs.release }}"
+          export IMG="ghcr.io/$GITHUB_REPOSITORY:$RELEASE_TAG"        
+  
+          if grep -q '^docker-buildx:' Makefile; then
+            make docker-buildx
+          else
+            make docker-build
+            make docker-push
           fi
-          
-          export IMG="ghcr.io/$GITHUB_REPOSITORY:$TAG" 
-          make docker-buildx
+