serverless.yml

service: dns-lambda

provider:
  name: aws
  region: eu-west-1
  runtime: python3.8
  memorySize: 128
  deploymentBucket: ${env:DEPLOYMENT_BUCKET}
  iamRoleStatements:
    - Effect: Allow
      Action: "ec2:*"
      Resource: "*"
    - Effect: Allow
      Action: "route53:*"
      Resource: "*"
  environment:
    DOMAIN_NAME: ${env:DOMAIN_NAME}
    HOSTED_ZONE_ID: ${env:HOSTED_ZONE_ID}


functions:
  createRecord:
    handler: src/dns_lambda.create_record
    events:
      - cloudwatchEvent:
          event:
            source:
              - aws.ec2
            detail-type:
              - EC2 Instance State-change Notification
            detail:
              state:
                - running
  deleteRecord:
    handler: src/dns_lambda.delete_record
    events:
      - cloudwatchEvent:
          event:
            source:
              - aws.ec2
            detail-type:
              - EC2 Instance State-change Notification
            detail:
              state:
                - stopped
                - terminated

plugins:
  - serverless-python-requirements