Lesson 43/100

Tutorials AWS Cloud Tutorial

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 servicesProjects

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

  1. Create CodeDeploy application for ECS.
  2. Configure deployment group with target group pair.
  3. Trigger deployment; watch hooks and traffic shift.
  4. Set termination wait time to 10 minutes.
  5. 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.

Junior Detailed
Explain Services in the context of AWS Cloud.
Short answer: Interviewers want a crisp definition, a practical example from your projects, and awareness of trade-offs—not textbook dumps. Explain a bit more How to structure your answer (60–90 seconds) Define Services…
Mid Detailed
What are common mistakes teams make with Deployment when using AWS Cloud?
Short answer: Interviewers want a crisp definition, a practical example from your projects, and awareness of trade-offs—not textbook dumps. Explain a bit more How to structure your answer (60–90 seconds) Define Deploymen…
Senior Detailed
How would you debug a production issue related to Security in a AWS Cloud application?
Short answer: Interviewers want a crisp definition, a practical example from your projects, and awareness of trade-offs—not textbook dumps. Explain a bit more How to structure your answer (60–90 seconds) Define Security…
Junior Detailed
Describe a real-world scenario where Monitoring mattered in a AWS Cloud project.
Short answer: Interviewers want a crisp definition, a practical example from your projects, and awareness of trade-offs—not textbook dumps. Explain a bit more How to structure your answer (60–90 seconds) Define Monitorin…
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AWS Cloud Tutorial
Course syllabus

AWS Cloud Tutorial

AWS — Foundations
AWS — Networking & Security
AWS — Compute Services
AWS — Storage & Databases
AWS — DevOps & Automation
AWS — Serverless & Event-Driven
AWS — Observability & Security
AWS — Cloud-Native & Microservices
AWS — AI, Performance & Cost
AWS — Enterprise Projects
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