serverless.js

/* eslint-disable no-multi-spaces */                    // 'cuz clarify paired structure
/* eslint-disable no-template-curly-in-string */        // 'cuz syntax of the serverless framework
/* eslint-disable @typescript-eslint/no-var-requires */ // 'cuz of the JavaScript file

/*
 * Command line options
 * --stage:        Stage as a system landscape, default is 'dev' (Choice: [dev | prd], e.g. --stage dev)
 * --region:       Region to deploy, default is determined by the value of `stage` (e.g. --region ap-northeast-1)
 * --bucket:       Buckets to be used for deployment, or to specify when deploying to different accounts (e.g. --bucket my-deploys)
 * --aws-profile:  Optional, when specifying AWS Profile name (If `devops` exists in `~/.aws/credentials`, e.g. --aws-profile devops)
 */

const pkg = require('./package.json');


module.exports = {
  service: pkg.name,
  provider: {
    name: 'aws',
    stage: '${opt:stage, "dev"}',
    region: '${opt:region, self:custom.stages.region.${self:provider.stage}}',
    runtime: `nodejs${pkg.engines.node.replace('>=', '')}`,
    apiName: '${self:service}${self:custom.stages.suffix.${self:provider.stage}}',
    memorySize: 256,
    timeout: 29,
    logRetentionInDays: 7,
    versionFunctions: false,
    deploymentBucket: {
      name: '${opt:bucket, "x-sls-artifacts-' + pkg.group + '-${self:provider.region}"}',  /* eslint-disable-line prefer-template */  // 'cuz syntax of the serverless framework
      maxPreviousDeploymentArtifacts: 1,
      blockPublicAccess: true,
      serverSideEncryption: 'AES256'
    },
    iamRoleStatements: [{
      Effect: 'Allow',
      Action: [ 's3:PutObject' ],
      Resource: 'arn:aws:s3:::${self:custom.names.s3-images}/*'
    }],
    environment: {
      AWS_NODEJS_CONNECTION_REUSE_ENABLED: 1,
      STAGE: '${self:provider.stage}',
      S3_IMAGES_REGION: '${self:provider.region}',
      S3_IMAGES_BUCKET: '${self:custom.names.s3-images}',
      SLACK_TOKENS: '${env:SLACK_TOKENS}',
      YOLP_APP_ID: '${env:YOLP_APP_ID}',
      NOTE: '${env:NOTE}'
    }
  },

  plugins: [
    'serverless-webpack',
    'serverless-offline'
  ],

  custom: {
    webpack: { packager: 'yarn', webpackConfig: 'deploy/webpack.config.js', includeModules: { forceExclude: [ 'aws-sdk' ]}},
    stages: {
      region: { dev: 'ap-northeast-1', qas: 'ap-northeast-1', prd: 'ap-northeast-1' },
      suffix: { dev: '-dev',           qas: '-qas',           prd: '' }
    },
    names: {
      'lambda-systems': '${self:service}-systems${self:custom.stages.suffix.${self:provider.stage}}',
      'lambda-command': '${self:service}-command${self:custom.stages.suffix.${self:provider.stage}}',
      's3-images': '${self:service}-images${self:custom.stages.suffix.${self:provider.stage}}'
    }
  },

  functions: {
    Systems: {
      name: '${self:custom.names.lambda-systems}',
      handler: 'src/aws-lambda-handler/systems.handle',
      events: [{ http: { path: 'version', method: 'get', cors: true }}]
    },
    Command: {
      name: '${self:custom.names.lambda-command}',
      handler: 'src/aws-lambda-handler/sora-kagami-command.handler',
      events: [{ http: { path: 'sora-kagami', method: 'post', cors: true, async: true }}]
    }
  },

  resources: [{
    Resources: {
      ImagesBucket: {
        Type: 'AWS::S3::Bucket',
        Properties: {
          BucketName: '${self:custom.names.s3-images}',
          BucketEncryption: { ServerSideEncryptionConfiguration: [{ ServerSideEncryptionByDefault: { SSEAlgorithm: 'AES256' }}]},
          AccessControl: 'Private',
          WebsiteConfiguration: {
            IndexDocument: 'index.html'
          },
          LifecycleConfiguration: {
            Rules: [{
              Id: 'expiration',
              Status: 'Enabled',
              ExpirationInDays: 3
            }]
          }
        }
      },
      ImagesBucketPolicy: {
        Type: 'AWS::S3::BucketPolicy',
        Properties: {
          Bucket: { Ref: 'ImagesBucket' },
          PolicyDocument: {
            Statement: {
              Effect: 'Allow',
              Action: [ 's3:GetObject' ],
              Resource: 'arn:aws:s3:::${self:custom.names.s3-images}/*',
              Principal: '*'
            }
          }
        }
      }
    }
  }]
};