serveless yaml file part 2

serverless.yml

service: jb-recommendation

custom:
  stage: ${opt:stage, 'dev'}
  configuration: ${file(configurations/${self:custom.stage}.yml)}

provider:
  name: aws
  runtime: nodejs8.10
  stage: ${self:custom.stage}
  region: ${self:custom.configuration.region}
  profile: ${self:custom.configuration.profile}
  memorySize: 1024
  timeout: 900
  environment:
      NODE_ENV: ${self:custom.configuration.NODE_ENV}
functions:
  processS3:
    handler: app.s3Handler
    reservedConcurrency: 1
    events:
      - s3:
          bucket: ssense-recommendation-framework-${self:custom.configuration.NODE_ENV}
          events: s3:ObjectCreated:*
          rules:
            - suffix: .csv

plugins:
  - serverless-plugin-typescript
  - serverless-offline