Skip to content

Latest commit

 

History

History
62 lines (54 loc) · 2.6 KB

README.md

File metadata and controls

62 lines (54 loc) · 2.6 KB
Raw

ECS blue/ green deployment

We will deploy a demo application on ECS Fargate and update the application using Blue/Green deployment capability of CodeDeploy and ECS. Please refer the ECS workshop for more guidance.

Build and deploy the stack

  • Install dependencies - npm install
  • Build the project - npm run build
  • Bootstrap CDK - cdk bootstrap
  • Synthesize the output - cdk synth
  • Review the proposed build - cdk diff
  • Deploy the CDK stack - cdk deploy --require-approval never

Testing the Blue/Green Deployment

  • Access the deployed version of the application using the output value of BlueGreenUsingEcsStack.ecsBlueGreenLBDns
  • This is the Blue Deployment live on Port 80. The demo application will have a blue background
  • Push code to the code-commit repository
    • Open a new terminal session and export the temporary credentials for your AWS account
    • We will push the demo application code to a CodeCommit repository created by the above stack
    • Clone the reference GitHub repository 
          git clone https://github.com/smuralee/nginx-example.git
    • Change the remote origin to the CodeCommit repository. We fetch the demo-app repository URL 
          cd nginx-example
    git remote set-url origin $(aws codecommit get-repository --repository-name demo-app | jq -r '.repositoryMetadata.cloneUrlHttp')
    • Verify the remote origin url is pointing to the CodeCommit repository 
          git remote -v
    • Edit the index.html. We change the background-color to green 
          <head>
      <title>Demo Application</title>
    </head>
    <body style="background-color: green;">
      <h1 style="color: white; text-align: center;">
        Demo application - hosted with ECS
      </h1>
    </body>
    • Push the code to the CodeCommit repository 
        git add .
  git commit -m "Changed the background to green"
  git push
  • This will trigger the Blue/Green deployment for the ECS application
  • The Blue Deployment is live on Port 80 Blue deployment
  • You can test the Green Deployment on port 8080 Green deployment
  • Once the deployment is complete demo application with green background is visible

Cleanup

  • Delete the stack - cdk destroy -f
  • You will need to manually delete the S3 bucket and ECR repository since they are not empty