set pipeline condition

.woodpecker.yml

@@ -1,20 +1,14 @@
-#when:
-#  event: tag
+when:
+  event: tag
 
 steps:
   build-push:
     image: woodpeckerci/plugin-docker-buildx
     settings:
-      registry: forge.citizen4.eu
-      repo: forge.citizen4.eu/${CI_REPO_OWNER}/${CI_REPO_NAME}
       tags:
-#      - ${CI_COMMIT_TAG}
-      - ${CI_COMMIT_SHA:0:10}       
+      - ${CI_COMMIT_TAG}
+#      - ${CI_COMMIT_SHA:0:10}       
       - latest
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
       dockerfile: subfolder/Dockerfile
       context: subfolder