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CloudFormation Learning Roadmap

AWS-native infrastructure as code — templates, stacks, and drift-safe change management.

Estimated time:3–4 weeks

1🌱

Phase 1 — Fundamentals

Templates (YAML/JSON) structure

Resources, Parameters, Outputs

Stacks & stack sets

Intrinsic functions (Ref, GetAtt, Sub)

2🔄

Change sets (preview before apply)

Drift detection

Nested stacks

Stack policies (protect critical resources)

3🏗️

Custom resources (Lambda-backed)

Mappings & Conditions

Cross-stack references (Export/ImportValue)

AWS CDK as an alternative authoring layer

4🔐

important

IAM least-privilege for deployment roles

CodePipeline/GitHub Actions integration

Rollback triggers & failure handling

Multi-account/multi-region stack strategy

Begin with interview questions to assess your current level.