Developer Certificate of Origin workflow

MAINTAINERS.md

@@ -1,16 +1,20 @@
 - [Overview](#overview)
 - [Current Maintainers](#current-maintainers)
 - [Maintainer Responsibilities](#maintainer-responsibilities)
-  - [Uphold Code of Conduct](#uphold-code-of-conduct)
-  - [Prioritize Security](#prioritize-security)
-  - [Review Pull Requests](#review-pull-requests)
-  - [Triage Open Issues](#triage-open-issues)
-  - [Be Responsive](#be-responsive)
-  - [Maintain Overall Health of the Repo](#maintain-overall-health-of-the-repo)
-  - [Use Semver](#use-semver)
-  - [Release Frequently](#release-frequently)
-  - [Promote Other Maintainers](#promote-other-maintainers)
-  - [Describe the Repo](#describe-the-repo)
+  * [Uphold Code of Conduct](#uphold-code-of-conduct)
+  * [Prioritize Security](#prioritize-security)
+  * [Review Pull Requests](#review-pull-requests)
+  * [Triage Open Issues](#triage-open-issues)
+  * [Be Responsive](#be-responsive)
+  * [Maintain Overall Health of the Repo](#maintain-overall-health-of-the-repo)
+  * [Add Continious Integration Checks](#add-continious-integration-checks)
+    + [Developer Certificate of Origin workflow](#developer-certificate-of-origin-workflow)
+  * [Use Semver](#use-semver)
+  * [Release Frequently](#release-frequently)
+  * [Promote Other Maintainers](#promote-other-maintainers)
+  * [Describe the Repo](#describe-the-repo)
+
+<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
 
 ## Overview
 
@@ -57,6 +61,14 @@ Respond to enhancement requests, and forum posts. Allocate time to reviewing and
 
 Keep the `main` branch at production quality at all times. Backport features as needed. Cut release branches and tags to enable future patches. 
 
+### Add Continious Integration Checks
+
+Add integration checks that validate pull requests and pushes to ease the burden on Pull Request reviewers.
+
+#### Developer Certificate of Origin Workflow
+
+Validates pull requests commits are all signed with the doc, [doc.yml](./workflow/doc.yml).  Example [pull request](https://github.com/opensearch-project/opensearch-ci/pull/16).
+
 ### Use Semver
 
 Use and enforce [semantic versioning](https://semver.org/) and do not let breaking changes be made outside of major releases.

workflow/dco.yml

@@ -0,0 +1,18 @@
+name: Developer Certificate of Origin Check
+
+on: [pull_request]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Get PR Commits
+      id: 'get-pr-commits'
+      uses: tim-actions/get-pr-commits@v1.1.0
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+    - name: DCO Check
+      uses: tim-actions/dco@v1.1.0
+      with:
+        commits: ${{ steps.get-pr-commits.outputs.commits }}