Lesson 49/100

Tutorials AWS Cloud Tutorial

CI/CD Pipelines — Complete Guide

CI/CD Pipelines — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of AWS Cloud Tutorial on Toolliyo Academy.

8 min read Updated 8/20/2026

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AWS Cloud Tutorial · Lesson 49 of 100

CI/CD Pipelines

Core services → Projects

Core services · 1 — AWS basics · ~6 min · AWS — DevOps & Automation

What is this?

CI/CD pipelines automate build, test, security scan, and deploy on every change. AWS combines CodePipeline, CodeBuild, and third-party tools.

Why should you care?

AwsVerse mandates green main branch with tests, SAST, and staging deploy before production approval.

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 codebuild start-build \
  --project-name awsverse-api-ci \
  --source-version refs/heads/main \
  --environment-variables-override name=STAGE,value=staging

What happened?

Triggers a CodeBuild run for main branch with staging variable.
Chain with pipeline for deploy after build SUCCEEDs.

Practice next

Map pipeline stages: lint → test → build → deploy.
Fail pipeline on test failure.
Add manual approval before prod stage.
Parallelize unit and integration test actions.
Add artifact encryption with KMS.

Remember

Automate everything repeatable. Fast feedback on PR builds. Separate roles per environment.

AwsVerse trunk-based flow

Forty devs merge daily to main.

Outcome: Pipeline deploys staging in 8 minutes; prod after CAB approval.

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…

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…

All course Q&A Practice exams

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