Update .woodpecker.yml

.woodpecker.yml

@@ -1,3 +1,7 @@
+variables:
+  - &file Dockerfile
+  - &repo codeberg.org/${CI_REPO_OWNER}/hello
+
 steps:
   lint:
     image: docker.io/node:16
@@ -8,4 +12,18 @@ steps:
   build:
     image: docker.io/node:16
     commands:
-      - npm run build
+      - npm run build
+  publish:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      dockerfile: *file
+      platforms: linux/arm/v7,linux/arm64/v8,linux/amd64
+      repo: *repo
+      registry: codeberg.org
+      tags: ${CI_COMMIT_TAG},latest
+      username: ${CI_REPO_OWNER}
+      password:
+        from_secret: cb_token
+    when:
+      event: tag
+      path: *file