API Gateway triggered Lambda infrastructure

Code template

horothesun/api-gateway-lambda-template.g8

Setup

• Add the following block to your infrastructure code

module "demo_api_gateway_lambda" {
  source = "github.com/horothesun/api-gateway-lambda-infra?ref=1.0.0"

  lambda_name                = "demo-api-gateway-lambda"
  lambda_memory_MB           = 512
  lambda_logs_retention_days = 7
  http_method                = "GET"
  http_route                 = "/time"
  http_timeout_seconds       = 30
  apigw_logs_retention_days  = 7
  burst_limit_rps            = 1
  rate_limit_rps             = 1
  initial_setup              = true # TO BE REMOVED once the first ECR image gets created!
}

• Make sure your AWS OIDC for GitHub workflows role only contains permissions referencing ecr_repo_arn and NOT lambda_function_arn.
• Apply the Terraform changes.
• Run the service CI pipeline to publish the first ECR image (the pipeline will fail at the "Update lambda" stage).
• Remove initial_setup from your configuration (defaulting it to false).
• Update your AWS OIDC for GitHub workflows role by adding the permission referencing lambda_function_arn as well.
• Apply the Terraform changes again.
• Run the service CI pipeline again to update the lambda with the latest ECR image.