# Publish new version
aws lambda publish-version --function-name my-func
# Update alias to new version
aws lambda update-alias --function-name my-func \
--name prod --function-version 6
# Register new task definition
aws ecs register-task-definition --cli-input-json file://taskdef.json
# Update service
aws ecs update-service --cluster my-cluster \
--service my-service --task-definition my-app:6
# Deploy new version
eb deploy
# Deploy specific version
eb deploy --version v1.2.3
aws deploy create-deployment \
--application-name my-app \
--deployment-group-name prod \
--revision revisionType=S3,s3Location={bucket=my-bucket,key=app.zip,bundleType=zip}
Exam Tip: Lambda = publish version + update alias. ECS = new task definition + update service. Beanstalk = eb deploy. CodeDeploy for managed deployments.