ci: add gh action workflow definition for F5 CLA automation

.github/workflows/f5-cla.yml

@@ -0,0 +1,39 @@
+name: F5 CLA
+on:
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened, closed, synchronize]
+
+permissions:
+  actions: write
+  pull-requests: write
+  statuses: write
+
+jobs:
+  f5-cla:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Run F5 CLA assistant
+        if: (github.event.comment.body == 'recheck' || github.event.comment.body == 'I have hereby read the F5 CLA and agree to its terms') || github.event_name == 'pull_request_target'
+        uses: contributor-assistant/github-action@dbc1c64d82d3aad5072007a41fff2828ae6d23ec # v2.3.2
+        with:
+          # Any pull request targeting the following branch will trigger a CLA check
+          branch: 'main'
+          # Path to the CLA document
+          path-to-document: 'https://github.com/f5/.github/blob/main/CLA/cla-markdown.md'
+          # Custom CLA messages
+          custom-notsigned-prcomment: '🎉 Thank you for your contribution. It appears you have not yet signed the F5 Contributor License Agreement (CLA), which is required for your changes to be incorporated into an F5 project. Please kindly read the [F5 CLA](https://github.com/f5/.github/blob/main/CLA/cla-markdown.md) and comment the following to agree:'
+          custom-pr-sign-comment: 'I have hereby read the F5 CLA and agree to its terms'
+          custom-allsigned-prcomment: '✅ All required contributors have signed the F5 CLA for this PR. Thank you!'
+          # Remote repository storing CLA signatures
+          remote-organization-name: 'f5'
+          remote-repository-name: 'f5-cla-data'
+          path-to-signatures: 'signatures/beta/signatures.json'
+          # Comma seperated list of usernames for maintainers or any other individuals who should not be prompted for a CLA.
+          allowlist: Dean-Coakley, pleshakov, lucacome, bot*
+          # Do not lock PRs after a merge
+          lock-pullrequest-aftermerge: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PERSONAL_ACCESS_TOKEN: ${{ secrets.F5_CLA_TOKEN }}

CONTRIBUTING.md

@@ -50,6 +50,11 @@ issue template.
 ### Open a Pull Request
 
 - Fork the repo, create a branch, submit a PR when your changes are tested and ready for review
+- Acknowledge the F5 Contributor License Agreement (CLA) if prompted
+  - F5 Open Source Policy ***requires*** all external contributors agree to the terms outlined in the
+    [F5 CLA](https://github.com/f5/.github/blob/main/CLA/cla-markdown.md) before their changes can be incorporated into
+    an open source project.
+  - If you have not yet signed an F5 CLA when opening a pull request, our tooling will help walk you through the process.
 - Fill in [our pull request template](.github/PULL_REQUEST_TEMPLATE.md)
 
 > **Note**