Question

Difficulty: EasyAWS CodePipeline

A developer is configuring a basic continuous delivery pipeline in AWS CodePipeline to automate software releases. The pipeline must retrieve source code from an AWS CodeCommit repository, compile the project using AWS CodeBuild, and deploy it to an Amazon ECS service using AWS CodeDeploy. Arrange the following steps in the correct chronological order from first to last to complete a single pipeline execution.

  1. 1CodePipeline detects a new commit in the AWS CodeCommit source repository and initiates the pipeline execution.
  2. 2The source stage retrieves the repository files and uploads them as an input artifact to the Amazon S3 artifact bucket.
  3. 3AWS CodeBuild retrieves the source artifact from Amazon S3, compiles the application, and produces a build output artifact.
  4. 4AWS CodeDeploy retrieves the build output artifact from Amazon S3 and deploys it to the target Amazon ECS service.

Answer

The correct order of pipeline execution is: first, detecting the change in CodeCommit; second, retrieving the source files and storing them in Amazon S3; third, building the application using AWS CodeBuild; and finally, deploying the application to Amazon ECS using AWS CodeDeploy.
A pipeline execution in AWS CodePipeline flows sequentially through stages. First, CodePipeline detects a change in the source repository. Second, the source stage retrieves the code and stores it in Amazon S3 as an input artifact. Third, AWS CodeBuild compiles the code and generates the build output artifact. Lastly, AWS CodeDeploy uses the build artifact to update the Amazon ECS service.

Step-by-Step Solution

1
Detect change in the source repository
Pipeline execution is triggered.
AWS CodePipeline monitors the source repository for changes to start the release process automatically.
2
Retrieve source files and upload to the artifact store
Source artifact is created and stored in the pipeline's Amazon S3 bucket.
The files must be uploaded to the artifact store so they are accessible by downstream actions.
3
Execute the build stage action
A build output artifact is created.
AWS CodeBuild runs compile and packaging steps on the source artifact to generate the deployable artifact.
4
Execute the deploy stage action
The application is updated in the target environment.
AWS CodeDeploy consumes the build output artifact to update the Amazon ECS task definition and service.

Key Concept

AWS CodePipeline execution runs sequentially through stages (Source, Build, Deploy). Each stage processes input artifacts generated by previous stages and produces output artifacts for subsequent stages.
Estimated Time:45s
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