Failed Deployment Troubleshooting
Diagnose and recover from failed CodeDeploy and CloudFormation deployments using rollback triggers, lifecycle hooks, and deployment logs.
Lab Overview
In this lab you will encounter deliberately broken deployments and learn to diagnose failures using CloudFormation stack events, CodeDeploy logs, and lifecycle hooks.
You will:
- Deploy a CloudFormation stack that will fail and diagnose the rollback
- Create a CodeDeploy application with a deliberately broken AppSpec
- Inspect CloudWatch Logs and CodeDeploy deployment events to identify root cause
- Configure a CloudFormation rollback trigger with a CloudWatch alarm
- Fix the broken deployments and verify successful redeployment
Region: us-east-1.
What You'll Learn
Diagnose CloudFormation stack failures by analyzing stack events and resource status codes
Inspect CodeDeploy deployment lifecycle events and identify root causes from log output
Configure CloudFormation rollback triggers using CloudWatch alarms
Use lifecycle hooks to prevent deployment to unhealthy targets
Fix broken infrastructure/deployment code and re-deploy successfully
Prerequisites
basic-aws-cli-familiarity
aws-associate-level-knowledge
completed-aws-devops-cli-operations-baseline-lab
Technologies Covered
Part of a Course
This lab is part of the AWS Certified DevOps Engineer - Professional (DOP-C02) course
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