SAM Serverless Stack Lifecycle
Build, package, and deploy a SAM serverless application (Lambda + API Gateway + DynamoDB), then configure a Canary10Percent5Minutes deployment with CloudWatch alarm and watch CodeDeploy auto-rollback in action.
Lab Overview
In this lab you'll go end-to-end with the AWS Serverless Application Model (SAM). You'll scaffold a Lambda + API Gateway + DynamoDB application, build it with `sam build`, deploy it with `sam deploy`, and then add a `DeploymentPreference` of `Canary10Percent5Minutes` with a CloudWatch alarm. You'll deploy a v2 of the function and finally trigger the alarm to demonstrate automatic CodeDeploy rollback.
You will:
- Initialize a SAM template with a Lambda function, API Gateway endpoint, and DynamoDB table
- Run `sam build` and inspect the `.aws-sam/` build artifacts
- Deploy the stack with `sam deploy --guided` and invoke the API
- Add a `DeploymentPreference` (Canary10Percent5Minutes) plus CloudWatch alarm
- Deploy a v2 of the function and watch the canary shift traffic
- Tighten the alarm threshold to force CodeDeploy to roll back the deployment
What You'll Learn
Initialize a SAM application with Lambda, API Gateway, and DynamoDB
Build and inspect SAM build artifacts in .aws-sam/
Deploy a SAM stack with sam deploy and verify the API endpoint
Configure a Canary10Percent5Minutes DeploymentPreference with a CloudWatch alarm
Trigger a CloudWatch alarm to force CodeDeploy automatic rollback
Prerequisites
aws-devops-cli-operations-baseline
basic-cloudformation-familiarity
basic-lambda-familiarity
Technologies Covered
Part of a Course
This lab is part of the AWS Certified DevOps Engineer - Professional (DOP-C02) course
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