serverless.yml

# serverless.yml
service: resizeS3image

plugins:
  - serverless-webpack
  - serverless-offline
  - serverless-content-encoding
  - serverless-apigw-binary

custom:
  webpack:
    webpackConfig: ./webpack.config.js
    includeModules: true
    packager: 'npm'
  contentEncoding:
    minimumCompressionSize: 0 # Minimum body size required for compression in bytes
  apigwBinary:
    types:           #list of mime-types
      - 'image/jpeg'
      - 'image/png'
      - 'image/gif'
      - 'text/html'

package:
  include:
    - src/**
    - node_modules/**
  exclude:
    - .git/**
    - .env
    - env.yml
    - docker-compose.yml
    - Dockerfile
    - LICENSE
    - CHANGELOG.md
    - CODE_OF_CONDUCT.md
    - README.md
    - package.json
    - package-lock.json
    - tests/**
    - yarn.lock

provider:
  name: aws
  runtime: nodejs12.x
  region: us-west-2
  stage: ${opt:stage,'dev'}
  timeout: 5 # optional, in seconds, default is 6
  environment:
    BUCKET: ${file(env.yml):${self:provider.stage}.BUCKET}
  iamRoleStatements:
    - Effect: Allow
      Action:
        - 's3:PutObjectAcl'
        - 's3:PutObject'
        - 's3:ListBucket'
        - 's3:GetObject'
      Resource: '*'

functions:
  handler:
    handler: src/handler.imageprocess
    name: resizeimage-${self:provider.stage}
    memorySize: ${file(env.yml):${self:provider.stage}.MEMORY_SIZE}
    timeout: ${file(env.yml):${self:provider.stage}.TIMEOUT}
    reservedConcurrency: ${file(env.yml):${self:provider.stage}.TIMEOUT}
    events:
      - http:
          path: /{key+}
          method: get
          integration: lambda-proxy
          cors:
            origins:
              - ${file(env.yml):${self:provider.stage}.ORIGIN}
            headers:
              - Content-Type
              - X-Amz-Date
              - Authorization
              - X-Api-Key
              - X-Amz-Security-Token
              - X-Amz-User-Agent
              - Access-Control-Allow-Headers
              - Access-Control-Allow-Origin
            allowCredentials: true
          parameters:
            paths:
              key: true
    environment:
      BUCKET: ${file(env.yml):${self:provider.stage}.BUCKET}