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Presented by Rumesh Hapuarachchi Automating Infrastructure with AWS CDK

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Infrastructure as Code

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Infrastructure as Code Repetable & Predictable Same tools as your code Replicating environments for better testability

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AWS Cloud Development Kit (AWS CDK)

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Engineers love coding • Languages which they already know • Java, JS, TS, Python, Go, C# • Existing tools & workflows • Abstractions • Libraries • Use logics when defining your infrastrucure

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From code to cloud "Source" "Compiler" "Assembly Language" "Processor"" synthesize deploy AWS CF CF Template CDK CLI

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AWS CDK Main Components • Core Framework (App, Stacks, Resources) • AWS Construct Library • AWS CDK CLI

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Construct Levels Image Credits: Sebastian Korfmann

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99x.io npm install -g aws-cdk

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Commands • cdk init • cdk synth • cdk diff • cdk deploy • cdk destroy

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Let's Build Our First App

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99x.io Testing?

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Isn't that same as Jest? Testing with CDK • Snapshot tests • Fine-grained assertions • Validation tests

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Show me some code?

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Best Practices • Layer your application to reduce blast radius • Use multiple, isolated environments for dev, test, stage and prod • Smaller files • Make use of Parameter Store and Secrets Manager • Do not overengineer

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Helpful Resources • https://cdkpatterns.com/ • https://github.com/cdk-patterns/serverless • https://docs.aws.amazon.com/cdk/api/latest/docs/aws- construct-library.html

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99x.io Thank You rehrumesh rumeshh@99x.io