serverless.yml

service: ${env:SERVICE_NAME, "chatops-webhook-proxy"}

frameworkVersion: ">=1.1.0 <2.0.0"

provider:
  name: aws
  runtime: nodejs8.10
  region: ${opt:region, env:AWS_REGION, 'eu-west-1'}
  stage: ${opt:stage, 'dev'}
  environment:
      SSM_PREFIX: ${env:SSM_PREFIX, "/service/chatops-webhook-proxy/default/"}
  iamRoleStatements:
    - Effect: "Allow"
      Action:
        - "ssm:GetParameters"
        - "ssm:GetParametersByPath"
      Resource:
        - Fn::Join:
          - ""
          -
            - "arn:aws:ssm:"
            - Ref: 'AWS::Region'
            - ":"
            - Ref: 'AWS::AccountId'
            - ":parameter${self:provider.environment.SSM_PREFIX}"
        - Fn::Join:
          - ""
          -
            - "arn:aws:ssm:"
            - Ref: 'AWS::Region'
            - ":"
            - Ref: 'AWS::AccountId'
            - ":parameter${self:provider.environment.SSM_PREFIX}*"

functions:
  webhook:
    handler: index.webhook
    events:
      - http:
          path: webhook/{serviceName}
          method: any
          request:
            parameters:
              paths:
                serviceName: true