CodeDeploy — Complete Guide
CodeDeploy — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of AWS Cloud Tutorial on Toolliyo Academy.
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AWS Cloud Tutorial · Lesson 43 of 100
CodeDeploy
Core services → Projects
Core services · 1 — AWS basics · ~6 min · AWS — DevOps & Automation
What is this?
AWS CodeDeploy automates deployments to EC2, Lambda, ECS, and on-premises servers with blue/green and rolling strategies.
Why should you care?
AwsVerse ECS services use CodeDeploy blue/green to shift traffic with automatic rollback on CloudWatch alarms.
See it live — copy this example
Run in AWS CloudShell / local AWS CLI v2, or follow the matching steps in the AWS Console (Free Tier).
aws deploy create-deployment \
--application-name awsverse-api \
--deployment-group-name awsverse-api-ecs \
--revision '{"revisionType":"AppSpecContent","appSpecContent":{"content":"{\"version\":1,\"Resources\":[{\"TargetService\":{\"Type\":\"AWS::ECS::Service\",\"Properties\":{\"TaskDefinition\":\"arn:aws:ecs:...:task-definition/api:5\",\"LoadBalancerInfo\":{\"ContainerName\":\"api\",\"ContainerPort\":8080}}}}]}"}}'
What happened?
- Starts an ECS deployment referencing a new task definition revision.
- CodeDeploy shifts ALB listener weights per deployment config.
Practice next
- Create CodeDeploy application for ECS.
- Configure deployment group with target group pair.
- Trigger deployment; watch hooks and traffic shift.
- Set termination wait time to 10 minutes.
- Use one-at-a-time for EC2 on-prem hosts.
Remember
CodeDeploy = safe rollout automation. Blue/green minimizes downtime. Wire CloudWatch alarms for rollback.
AwsVerse zero-downtime
Payment API cannot drop connections.
Outcome: Blue/green shifts 10% traffic increments with auto rollback.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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