Add document label check robot for Pull requests (apache#11977)

.github/PULL_REQUEST_TEMPLATE.md

@@ -72,15 +72,15 @@ Check the box below and label this PR (if you have committer privilege).
 
 Need to update docs? 
 
-- [ ] doc-required 
+- [ ] `doc-required` 
 
   (If you need help on updating docs, create a doc issue)
 
-- [ ] no-need-doc 
+- [ ] `no-need-doc` 
 
   (Please explain why)
 
-- [ ] doc 
+- [ ] `doc` 
 
   (If this PR contains doc changes)
 

.github/workflows/ci-documentbot.yml

@@ -0,0 +1,28 @@
+name: Auto Labeling
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - labeled
+
+
+
+# A GitHub token created for a PR coming from a fork doesn't have
+# 'admin' or 'write' permission (which is required to add labels)
+# To avoid this issue, you can use the `scheduled` event and run
+# this action on a certain interval.And check the label about the
+# document.
+
+jobs:
+  labeling:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: apache/pulsar-test-infra/doc-label-check@master
+        with:
+          github-token: ${{ secrets.PULSARBOT_TOKEN }}
+          label-pattern: '- \[(.*?)\] ?`(.+?)`' # matches '- [x] `label`'
+          bot-name: 'pr-bot-test'