Create cla.yml (#131)

Signed-off-by: Xinwei Xiong <86140903+cubxxw@users.noreply.github.com>
Co-authored-by: OpenIM Robot <139873238+openimbot@users.noreply.github.com>

.github/workflows/cla.yml

@@ -0,0 +1,46 @@
+name: "OpenIM CLA Assistant"
+on:
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened,closed,synchronize]
+
+# explicitly configure permissions, in case your GITHUB_TOKEN workflow permissions are set to read-only in repository settings
+permissions:
+  actions: write
+  contents: write
+  pull-requests: write
+  statuses: write
+
+env:
+  # Define Open-IM-Server variables here
+  OPEN_IM_SERVER_ORGANIZATION: OpenKF
+  OPEN_IM_SERVER_REPOSITORY: cla
+  OPEN_IM_SERVER_CLA_DOCUMENT: https://github.com/openim-sigs/cla/blob/main/README.md
+  OPEN_IM_SERVER_SIGNATURES_PATH: signatures/openkf/cla.json
+  OPEN_IM_SERVER_ALLOWLIST: kubbot,bot*
+  OPEN_IM_SERVER_REMOTE_ORGANIZATION: OpenKF
+
+jobs:
+  CLAAssistant:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "CLA Assistant"
+        if: (github.event.comment.body == '/recheck' || github.event.comment.body == '/cla' || github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request_target'
+        uses: contributor-assistant/github-action@v2.3.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.BOT_GITHUB_TOKEN }}
+          PERSONAL_ACCESS_TOKEN: ${{ secrets.REDBOT_GITHUB_TOKEN }}
+        with:
+          path-to-signatures: ${{ env.OPEN_IM_SERVER_SIGNATURES_PATH }}
+          path-to-document: ${{ env.OPEN_IM_SERVER_CLA_DOCUMENT }}
+          branch: 'main'
+          allowlist: ${{ env.OPEN_IM_SERVER_ALLOWLIST }}
+
+          remote-organization-name: ${{ env.OPEN_IM_SERVER_REMOTE_ORGANIZATION }}
+          create-file-commit-message: 'Docs: Creating file for storing ${{ env.OPEN_IM_SERVER_ORGANIZATION }} CLA Signatures'
+          custom-notsigned-prcomment: '💕 Thank you for your contribution and please kindly read and sign our ${{ env.OPEN_IM_SERVER_CLA_DOCUMENT }}, OR comment `/cla`'
+          custom-pr-sign-comment: 'The signature to be committed in order to sign ${{ env.OPEN_IM_SERVER_ORGANIZATION }} the CLA'
+          custom-allsigned-prcomment: '**🤖 All Contributors have signed the ${{ env.OPEN_IM_SERVER_ORGANIZATION }} [CLA](https://github.com/openim-sigs/cla/blob/main/README.md).'
+        #   lock-pullrequest-aftermerge: false - if you don't want this bot to automatically lock the pull request after merging (default - true)
+        #   use-dco-flag: true - If you are using DCO instead of CLA