MultiTenantHub

Achieving Operational Success of SaaS Solutions

Cheat Commands

• pnpx cdk init --language typescript
• pnpm up -r --workspace
• brew install aws/tap/aws-sam-cli
• sam local start-lambda -t ./cdk.out/SaasProviderStack.template.json
• sam local invoke DynamoLambdaHandlerFB6EB814 --no-event -t ./cdk.out/SaasProviderStack.template.json
• pnpx aws-sdk-js-codemod -t v2-to-v3 infrastructures/saas_provider/src/services/index.ts

npx cdk bootstrap \
  --cloudformation-execution-policies arn\:aws\:iam::aws\:policy/AdministratorAccess \
  aws://$ACCOUNT_ID/us-east-1 \
  aws://$ACCOUNT_ID/us-east-2

020235202149

Migration

• Cognito: https://github.com/Collaborne/migrate-cognito-user-pool-lambda/blob/master/README.md https://cloudar.be/awsblog/options-for-migrating-between-amazon-cognito-user-pools/

TroubleShooting

• CloudFormation cannot update a stack when a custom-named resource requires replacing.
  • https://repost.aws/knowledge-center/cloudformation-custom-name
• CI/CD on AWS Workshop
• Pass vars between stage docker run -p 9000:8080 589767107094.dkr.ecr.ap-northeast-1.amazonaws.com/cicdstack-multitenanthublambda2d3d098d-odrgmwvoxwrx:latest
• EXPORT_NAME cannot be updated as it is in use by STACK_NAME
• SSM
• CrHelper

States

• Stack update in progress will fail the infraDeployment mainly by previous deployment. -> retry button or wait for 20 mins

Steps

1. Set up secret manager for PAT token (Feature: use conection)
2. Delete all webhook generated from github to prevent push trigger for tenant pipeline(if you are not using connection)

Migration

1. Cognito
2. Dynamodb
3. CfnWebhook

Q&A

Reason: Token authorizer is not working and therafore cannot add context to the lambda request. [ERROR] KeyError: 'authorizer' Traceback (most recent call last):   File "/var/task/aws_lambda_powertools/tracing/tracer.py", line 313, in decorate     response = lambda_handler(event, context, **kwargs)   File "/var/task/order_service.py", line 71, in get_orders     tenantId = event['requestContext']['authorizer']['tenantId']