set pipeline condition

.woodpecker.yml

@@ -7,6 +7,9 @@ pipeline:
       - echo ${CI_REPO_OWNER}  
       - echo ${CI_COMMIT_SHA}
       - echo ${CI_COMMIT_SHA:0:10}   
+    when:
+      event: tag
+      branch: main           
 
   build-push:
     image: plugins/docker
@@ -22,3 +25,6 @@ pipeline:
         from_secret: docker_username
       password:
         from_secret: docker_password
+    when:
+      event: tag
+      branch: main