add missing steps, test without pushing

.github/workflows/docker-publish.yml

@@ -5,6 +5,19 @@ on:
     branches:
       - main
 
+env:
+  # Use GitHub Container Repository
+  REGISTRY_GITHUB: ghcr.io
+
+  # Use docker.io for Docker Hub if empty
+  REGISTRY_DOCKER_HUB: docker.io
+
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: geschke/php-fpm-swrm
+  # was: ${{ github.repository }}
+  # GitHub repository is named as "docker-<image_name>" to differ Docker images from other contents
+
+
 jobs:
   build-and-push-image:
     runs-on: ubuntu-latest
@@ -14,10 +27,8 @@ jobs:
         include:
           - directory: ./ubuntu-22.04/
             tagging: 8.1-fpm
-            image: geschke/php-fpm-swrm
           - directory: ./ubuntu-22.04-sury-8.2/
             tagging: 8.2-fpm-ubuntu22.04-sury
-            image: geschke/php-fpm-swrm
     permissions:
       contents: read
       packages: write
@@ -33,10 +44,21 @@ jobs:
         uses: docker/setup-buildx-action@v3
       -
         name: Login to Docker Hub
+        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
+
+      # Login to GitHub Container Repository
+      - name: Log into registry ${{ env.REGISTRY_GITHUB }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY_GITHUB }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       -
         name: Copy composer installation file
         run: |
@@ -68,16 +90,20 @@ jobs:
             echo "run_build=true" >> "$GITHUB_OUTPUT"
           fi
 
-      - name: Test step after query
+      - name: Test build image
         if: "${{ steps.query_tag.outputs.run_build == 'true' }}"
         run: |
           echo "build docker image ${{ matrix.directory }} ${{ matrix.image }} here... with tag ${{ steps.generate_tag.outputs.full_tag }} "
-      #-
-      #  name: Build and push
-      #  uses: docker/build-push-action@v6
-      #  with:
-      #    context: .
-      #    file: ${{ matrix.directory }}/Dockerfile
-      #    push: false
-      #    load: true
-      #    tags: ${{ matrix.tagging }}
+      
+      -
+        name: Build and push
+        if: "${{ steps.query_tag.outputs.run_build == 'true' }}"
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ${{ matrix.directory }}/Dockerfile
+          push: false
+          load: true
+          tags: | 
+            ${{ env.IMAGE_NAME }}:${{ steps.generate_tag.outputs.full_tag }}
+            ${{ env.REGISTRY_GITHUB }}/${{ env.IMAGE_NAME }}:${{ steps.generate_tag.outputs.full_tag }}