fixup! fixup! Build Docker image with Kaniko

.gitea/workflows/docker.yml

@@ -20,12 +20,20 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Extract metadata (tags, labels) for Docker
+      - name: Generate suitable tag for kaniko
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
+      - name: Extract tag for kaniko action
+        id: tag
+        env:
+          TAG: ${{ steps.meta.outputs.tags[0] }}
+        run: |
+          echo "::set-output name=tag::${TAG##*:}"
+
+
       - name: Build Docker image with kaniko
         uses: https://code.thetadev.de/ThetaDev/action-kaniko@dbb8da86cf2d498dde8ec1b3be967ceda17a21ff
         with:
@@ -33,7 +41,7 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-          tag: ${{ steps.meta.outputs.tags }}
+          tag: ${{ steps.tag.outputs.tag }}
           platforms: linux/amd64
           tag_with_latest: ${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}