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Introducing CDK - Coggle Diagram

- - - - JavaScript
      - TypeScript
    - - CloudFormation template
- - - - that provisions AWS resources in Stacks
        
        where a Stack is
        
        a collection of AWS resources
    - - yaml or json
- - - - creates folders
        
        bin
        
        contains file
        
        first-cdk.ts
        
        const app = new cdk.App(); new FirstCdkStack(app, 'FirstCdkStack', {});
        
        initialises the CDK app
        
        lib
        
        defines the stack
        
        contains file
        
        first-cdk-stack.ts
        
        export class FirstCdkStack extends Stack { constructor(scope: Construct, id: string, props?: StackProps) { super(scope, id, props); } }
  - - - containing a *.template.json file
  - - - called CDKToolkit
        
        in our account
      - that is used to create other CDK stacks
  - - - called FirstCdkStack
  - - - created during cdk init
      - contains an app key
        
        { "app": "npx ts-node --prefer-ts-exts bin/first-cdk.ts" }
        
        tells CDK how to run our application
        
        npx
        
        an npm package runner
        
        installed with npm
        
        allows you to execute any package available on the NPM registry without installing it
        
        downloads the package
        
        caches it
        
        and runs it
        
        ts-node
        
        an npm package
        
        allows you to directly execute TypeScript code
        
        without compiling to JavaScript first
        
        the code that's executed is in bin/first-cdk.ts
- - - - local
      - deployed
      - example
        
        [~] AWS::S3::Bucket someBucket someBucket8B32029D └─ [~] LifecycleConfiguration └─ [~] .Rules: └─ @@ -1,6 +1,6 @@ [ ] [ [ ] { [-] "ExpirationInDays": 5, [+] "ExpirationInDays": 2, [ ] "Status": "Enabled" [ ] } [ ] ]