serverless.yml

service: logstream-cleanup

plugins:
  - serverless-esbuild

configValidationMode: error

custom:
  # Define how often the clean up should run
  cleanupRate: rate(1 day)

  # Configure how many days logs of this job should be saved
  logRetentionInDays: 5

  # Configure how many hours empty log streams should be kept after creation
  keepNewEmptyStreamsInHours: 2

  esbuild:
    bundle: true
    minify: true
    sourcemap: true

package:
  individually: true

provider:
  architecture: arm64
  deploymentMethod: direct
  name: aws
  stackName: logstream-cleanup
  runtime: nodejs18.x
  versionFunctions: false
  region: ${opt:region, 'us-east-1'}
  logRetentionInDays: ${self:custom.logRetentionInDays}
  iam:
    role:
      statements:
        - Effect: Allow
          Action:
            - lambda:InvokeFunction
            - lambda:InvokeAsync
          Resource: '*'
        - Effect: Allow
          Action:
            - logs:DescribeLogGroups
          Resource: 'arn:aws:logs:*:*:log-group:*'
        - Effect: Allow
          Action:
            - logs:DeleteLogStream
            - logs:DescribeLogStreams
          Resource: 'arn:aws:logs:*:*:log-group:/aws/lambda/*'

  environment:
    AWS_NODEJS_CONNECTION_REUSE_ENABLED: 1
    NODE_OPTIONS: --enable-source-maps
    STAGE: ${sls:stage}
    keepStreams: ${self:custom.keepNewEmptyStreamsInHours}

functions:
  logStreamsCleanupDispatch:
    name: logstream-cleanup-dispatch
    description: Entry point for scheduled logstream cleanup
    handler: src/handler.logStreamsCleanupDispatch
    timeout: 900
    events:
      - schedule:
          rate: ${self:custom.cleanupRate}
          enabled: true
          name: logStreamsCleanup
  logStreamsCleanupGroup:
    name: logstream-cleanup-group-handler
    description: Handler for a single group
    handler: src/handler.logStreamsCleanupGroupHandler
    timeout: 900
  logStreamsCleanupStreams:
    name: logstream-cleanup-streams-handler
    description: Handler for a group of single streams
    handler: src/handler.logStreamsCleanupStreamsHandler
    timeout: 900