correct docker push

.gitea/workflows/docker-publish.yml

@@ -54,13 +54,17 @@ jobs:
           echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login "${{ secrets.DOCKER_REGISTRY }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
 
       - name: Build and Push
+        shell: bash
         run: |
+          set -euo pipefail
+
           export DOCKER_BUILDKIT=1
           docker build ${{ steps.vars.outputs.docker_tags }} ${{ inputs.dockerfile_path }}
 
           IMAGE="${{ steps.vars.outputs.full_image }}"
-          for part in ${{ steps.vars.outputs.docker_tags }}; do
-            if [[ "$part" == "${IMAGE}:"* ]]; then
-              docker push "$part"
-            fi
+          TAGS="${{ steps.vars.outputs.docker_tags }}"
+
+          echo "$TAGS" | tr ' ' '\n' | grep "^${IMAGE}:" | while read -r tag; do
+            echo "Pushing $tag"
+            docker push "$tag"
           done