fix: update Docker Hub login step to be optional and clean up registry login process

.gitea/workflows/build.yml

@@ -22,16 +22,13 @@ jobs:
       - name: Verify Docker CLI
         run: docker version
 
-      - name: Log in to Docker Hub
+      - name: Log in to Docker Hub (optional)
+        if: ${{ secrets.DOCKERHUB_USERNAME != '' && secrets.DOCKERHUB_TOKEN != '' }}
         run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login docker.io -u "${{ secrets.DOCKERHUB_USERNAME }}" --password-stdin
 
       - name: Build all-in-one image
         run: docker build -t condado-newsletter:latest -f Dockerfile.allinone .
 
-      - name: log the docker registry login credentials (for debugging)
-        run: |
-          echo "$REGISTRY_PASSWORD" | base64
-
       - name: Log in to Gitea container registry
         run: |
           if [ -z "$REGISTRY_USERNAME" ]; then
@@ -44,14 +41,15 @@ jobs:
             exit 1
           fi
 
-          echo "$REGISTRY_PASSWORD" | docker login ${REGISTRY} -u "$REGISTRY_USERNAME" --password-stdin
+          echo "$REGISTRY_PASSWORD" | docker login "$REGISTRY" -u "$REGISTRY_USERNAME" --password-stdin
 
       - name: Tag registry images
         run: |
           docker tag condado-newsletter:latest ${REGISTRY}/${IMAGE_NAME}:latest
           docker tag condado-newsletter:latest ${REGISTRY}/${IMAGE_NAME}:${{ github.sha }}
 
-      - name: Push registry images
-        run: |
-          docker push ${REGISTRY}/${IMAGE_NAME}:latest
-          docker push ${REGISTRY}/${IMAGE_NAME}:${{ github.sha }}
+      - name: Build and Push
+        uses: docker/build-push-action@v5
+        with:
+          push: true
+          tags: ://gitea.lab:80{{ gitea.repository }}:latest