step_two

Java AWS Serverless - Step Two

• Step One: Basic lambdas and getting them deployed
• Step Two: Adding CodePipeline to avoid manual deployments
• Step Three: Tips & Tricks

Step Two

Structure

• infra - Deploys lambda with CDK
• lambdas - Contains Java lambda functions
• layer - Creates layer for use by the lambdas

CICD with CodePipeline

How to create a Code Pipeline for builds, triggered from Github

• Grant access to Github repo
• Setup token in AWS Secrets Manager: aws secretsmanager create-secret --name GITHUB_TOKEN --secret-string <YOUR_GITHUB_PERSONAL_ACCESS_TOKEN> --profile <YOUR_PROFILE>
• Set github values in infra/cdk.json
• Define a CodePipeline linked to github (see CodeServicesCICDStack)
• Temporarily change CoreServicesCdkApp to setup code pipeline.

Build & Deploy Stack changes

Note: AWS CDK CLI & Docker is required on your machine to deploy the solution

• mvn clean package - build the solution
• cd infra
• cdk synth --profile <your profile> - synth the solution
• cdk deploy --profile <your profile> - deploy the solution

Useful resources:

• Resources: https://github.com/kolomied/awesome-cdk
• Intro: https://cdkworkshop.com/50-java/70-advanced-topics/100-pipelines/5000-test-actions.html
• JavaCDK Stack example: https://github.com/xerris/poc-javacdk/blob/master/src/main/java/com/myorg/JavaCdkStack.java
• JavaDocs for AWS CDK lib: https://docs.aws.amazon.com/cdk/api/v2/java/index.html?software/amazon/awscdk/services/codepipeline/actions/ManualApprovalAction.html
• AWS CDK Activate workshop: https://catalog.us-east-1.prod.workshops.aws/v2/workshops/13304db2-f715-48bf-ada0-92e5c4eea945/