AWS CodePipeline能否配置双源？特定触发场景技术咨询

Absolutely, this is totally doable in AWS CodePipeline. Let me walk you through exactly how to set this up to match your needs:

Step 1: Configure S3 as the Pipeline Trigger #

First, you’ll set your pipeline to trigger only when the specific S3 object is modified:

• Create a Source stage in your CodePipeline, then add an S3 source action.
• Point the action to your target bucket and exact object path (you can use a prefix if you need broader triggers, but stick to the specific object for your use case).
• Enable change detection for this S3 action—this ensures the pipeline automatically starts whenever that object is updated, added, or deleted.

Step 2: Add CodeCommit as a Second Source #

You have two flexible options to pull in the CodeCommit repo content once the pipeline triggers:

Option A: Add CodeCommit to the Same Source Stage #

CodePipeline supports multiple source actions in a single stage:

• In the same Source stage with your S3 action, click "Add action" and select CodeCommit as the provider.
• Configure it with your repository name and target branch.
• When the pipeline triggers via S3, both the S3 object and latest CodeCommit code will be pulled into the pipeline’s artifact store (just make sure to assign unique artifact names like S3-Artifact and CodeCommit-Artifact to avoid overwrites).

Option B: Use a Separate Stage for CodeCommit #

If you prefer to split the source retrieval steps:

• Create a new stage (e.g., named "Fetch CodeCommit") right after the initial S3 Source stage.
• Add a CodeCommit source action to this stage. Since the pipeline is already triggered by the S3 change, this stage will run automatically after the first stage completes, cloning the latest CodeCommit code.

Key Things to Remember #

• IAM Permissions: Your pipeline’s service role needs permissions to read from the target S3 bucket (s3:GetObject) and pull from the CodeCommit repo (codecommit:GitPull). Double-check these are added to the role policy.
• Trigger Control: Only the S3 action will trigger the pipeline—if you don’t want CodeCommit changes to start the pipeline, leave change detection disabled for the CodeCommit action.

That’s all you need! This setup will make your pipeline kick off whenever the specific S3 object is updated, then pull in the latest CodeCommit code as part of the execution flow.

内容的提问来源于stack exchange，提问作者nixmind