Zainab Y.
Sample Reviewable infrastructure indeed
The title is accurate. Everything in this course is about making infrastructure changes safe to approve.
AWS CDK with TypeScript: infrastructure you can review
Define AWS infrastructure in TypeScript with CDK v2, test it with assertions, check it with cdk-nag and deploy it safely through a pipeline
Created by Mateo Silva
- Updated September 2026
- English
- Intermediate
What you will learn
- Create, synthesise, diff and deploy CDK v2 applications in TypeScript
- Choose between L1, L2 and L3 constructs and write your own
- Organise an application into stacks and environments without fragile references
- Test infrastructure with assertions and catch risky changes in review
- Enforce security rules with cdk-nag and Aspects
- Deploy through CDK Pipelines with approvals between environments
Course content
CDK fundamentals
Building the service
- Video: A VPC with sensible defaults 10 min
- Video: Containers on ECS Fargate behind a load balancer 13 min
- Article: A PostgreSQL database on RDS 11 min
- Video: A queue and a background worker 9 min
Structuring larger applications
- Video: Splitting into stacks 10 min
- Article: Cross stack references and their traps 10 min
- Video: Configuration per environment 9 min
- Video: Writing your own constructs 11 min
Testing infrastructure
- Article: Fine grained assertions 11 min
- Video: Snapshot tests and when to use them 8 min
- Video: Protecting logical ids of stateful resources 9 min
- Article: Validating with cdk-nag and Aspects 11 min
Serverless pieces with CDK
- Video: Lambda functions with NodejsFunction 10 min
- Video: Scheduled jobs and event rules 8 min
- Article: HTTP APIs in front of functions 9 min
Delivery and operations
- Video: Monitoring constructs: alarms and dashboards 10 min
- Video: CDK Pipelines with approvals 13 min
- Article: Deploying from GitHub Actions instead 10 min
- Video: Upgrades, drift and teardown 9 min
- Quiz: Final check 6 min
Requirements
- Basic TypeScript or JavaScript
- Working knowledge of AWS services such as IAM, VPC and S3
- Node.js LTS and the AWS CLI installed
Description
The AWS Cloud Development Kit lets you define infrastructure in a real programming language and deploy it through CloudFormation. That brings loops, types, functions and package management to infrastructure. It also brings the risk of clever code nobody can review. This course teaches CDK with a focus on infrastructure that a teammate can read, test and approve.
What we build
A small but complete service: a VPC, a containerised API on ECS Fargate behind a load balancer, a PostgreSQL database on RDS, a queue with a worker, alarms and dashboards. We grow it from one stack to several, add tests and policy checks, and finish with a self mutating pipeline that deploys to two environments.
- Constructs at three levels and when to use each
- Stacks, environments, context and cross stack references
- Fine grained assertion tests and snapshot tests
- Security checks with cdk-nag and Aspects
- Reusable constructs published as a package for your team
- CDK Pipelines with approvals between environments
Prerequisites and tools
You should know basic TypeScript and have used AWS before. We use CDK v2 with the aws-cdk-lib package, Node.js LTS and the AWS CLI. Everything is deployed into your own account, and we tear down every stack at the end.
Who this course is for
- Developers who own the infrastructure for their services
- DevOps engineers moving from raw CloudFormation or click ops
- Teams standardising how they define AWS resources
Instructor
Mateo Silva
Builds serverless and Kubernetes platforms on AWS. Teaches Lambda, CDK and Helm with real projects
- 4.4 instructor rating
- 21 reviews
- 4,470 students
- 3 courses
- Sample
I am a platform engineer who moves between two worlds: serverless applications on AWS Lambda and container platforms on Kubernetes. Teams usually need both, and I teach the trade offs honestly.
Each of my courses is built around one project that grows from a single file to something you could hand to a team: an HTTP API, a CDK app with tests, a Helm chart with sane defaults. I care about the parts tutorials skip, such as permissions, configuration per environment, rollbacks and cost.
I write infrastructure in TypeScript and YAML most days and I will show you the mistakes I made so you can skip them.
Student reviews
Theo B.
Sample The diff review lesson is essential
Reading diffs in three passes is now how our whole team reviews infrastructure pull requests.
Katarzyna W.
Sample Clear explanation of construct levels
I finally understand when to use L1, L2 and L3 and what an escape hatch really does.
Sakura I.
Sample Testing section is excellent
Assertions plus the logical id test caught a database replacement in our project before it reached production.
Anton S.
Sample cdk-nag integration is useful
We now fail builds on new nag findings. Clear guidance on writing suppression reasons.
Diego A.
Sample Great structure, ECS heavy
Very good course. Most examples use ECS, which suited me, but Lambda users may want more.
Musa A.
Sample Practical pipeline lessons
Comparing CDK Pipelines with GitHub Actions helped us choose. The cross stack reference trap lesson saved me a headache.
Holly G.
Sample Good, needs TypeScript comfort
Content is accurate, but my TypeScript was rusty and some lessons felt fast.
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