serverless.yml

service: step-functions-etl-demo

frameworkVersion: '3'

plugins:
  - serverless-step-functions

provider:
  name: aws
  runtime: python3.9
  stage: ${opt:stage, 'dev'}
  region: ${opt:region, 'eu-west-1'}
  environment:
    STAGE: ${sls:stage}
    SERVICE_NAME: ${self:service}

resources:
  Resources:
    ETLParams:
      Type: AWS::SSM::Parameter
      Properties:
        Name: /${self:provider.stage}/${self:service}/etl_params
        Description: ETL Params
        Type: String
        Value: ${file(./params/${self:provider.stage}-etl-params.txt)}
    LambdaRole:
      Type: AWS::IAM::Role
      Properties:
        RoleName: ${self:service}-lamda-role-${self:provider.stage}
        AssumeRolePolicyDocument:
          Version: '2012-10-17'
          Statement:
            - Effect: Allow
              Principal:
                Service: lambda.amazonaws.com
              Action:
                - sts:AssumeRole
        Policies:
          - PolicyName: lambda-policy
            PolicyDocument:
              Version: '2012-10-17'
              Statement:
                - Effect: Allow
                  Action:
                    - ssm:GetParameters
                    - ssm:GetParameter
                    - ssm:PutParameter
                  Resource:
                    - "arn:aws:ssm:eu-west-1:${aws:accountId}:parameter/${self:provider.stage}/*"


functions:
  step1:
    handler: function_step1/step1.handle_event
    name: ${self:service}-lambda-step1-${self:provider.stage}
    memorySize: 1024
    timeout: 30
    role: LambdaRole
    package:
      individually: true
      patterns:
        - '!README.md'
        - '!params/**'
        - '!step-function/**'
        - '!function_step2/**'
  step2:
    handler: function_step2/step2.handle_event
    name: ${self:service}-lambda-step2-${self:provider.stage}
    memorySize: 1024
    timeout: 30
    role: LambdaRole
    package:
      individually: true
      patterns:
        - '!README.md'
        - '!params/**'
        - '!step-function/**'
        - '!function_step1/**'

stepFunctions:
  validate: true
  stateMachines:
      step_job: ${file(./step-function/etl-job.yml)}