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.
- 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
- 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-apprepository URLcd 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 thebackground-colortogreen<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
- You can test the Green Deployment on port 8080
- Once the deployment is complete demo application with green background is visible
- Delete the stack -
cdk destroy -f - You will need to manually delete the S3 bucket and ECR repository since they are not empty