serverless.yml

service: flappy-detector

frameworkVersion: '2'

provider:
  name: aws
  # Replace this role with your lambda specific role defined in Terraform
  role:
    Fn::Sub: arn:aws:iam::${AWS::AccountId}:role/flappy_detector_lambda
  region: ${opt:region, 'us-west-2'}
  deploymentBucket: amplify-devops-${self:custom.regionShortName}-serverless-common
  runtime: python3.8
  memorySize: 512
  environment:
    # These fields allow you to set your log level to see unified service tagging on datadog
    LOG_LEVEL: ${self:custom.config.log_level}
    FLAPPY_DETECTOR_EC2_TABLE: ${self:custom.config.ec2_table}
    FLAPPY_DETECTOR_ROLE: flappy_detector_assumed
    FLAPPY_DETECTOR_MAX_EVENT_AGE_IN_MINS: ${self:custom.config.max_event_age_in_mins}
    FLAPPY_DETECTOR_MIN_NUM_EVENTS: ${self:custom.config.min_num_events}
    FLAPPY_DETECTOR_MIN_SPREAD: ${self:custom.config.min_spread}
  timeout: 300
  versionFunctions: false
  logRetentionInDays: 7
  stackTags:
    environment: ${opt:stage}
    application: ${self:service}
    version: ${env:DD_VERSION, 'unknown'} # Set version tag so that Datadog tags metrics with the version that was deployed
    lambda_nested_source: python # Set a extra tag so we can tell Datadog logs to parse logs using python pipeline
  tracing:
    apiGateway: true
    lambda: true
  endpointType: regional
  httpApi:
    payload: '2.0'

package:
  include:
    - dependencies/**
  exclude:
    - .coverage
    - .git
    - .gitignore
    - flappy_detector/**/*.py[cod]
    - ez_setup.py
    - MANIFEST.in
    - requirements.txt
    - setup.cfg
    - setup.py
    - test-requirements.txt
    - flappy_detector.egg-info/**
    - docs/**
    - reports/**
    - test/**
    - .tox/**
    - node_modules/**

functions:
  ingest:
    handler: flappy_detector/handlers/ingest.handler
    description: Ingests events for Flappy Detection
    events:
      - sns:
          # Use our own account id because Fn::Sub doesn't appear to work here...
          arn: arn:aws:sns:us-west-2:${self:custom.config.account_id}:ec2_state_change_uw2
      - sns:
          # Use our own account id because Fn::Sub doesn't appear to work here...
          arn: arn:aws:sns:us-east-1:${self:custom.config.account_id}:ec2_state_change_ue1
  detector:
    handler: flappy_detector/handlers/detect.handler
    description: Detects flappiness in ingested events
    events:
      - schedule: rate(30 minutes)

plugins:
  - serverless-python-requirements
  - serverless-plugin-datadog

custom:
  # This tells serverless to use the current stage config as defined in config.yml
  config: ${file(./config.yml):${opt:stage}}
  # This forwards logs and metrics to the datadog-forwarder lambda which is deployed in every account and region
  datadog:
    forwarder:
      Fn::Sub: arn:aws:lambda:${self:provider.region}:${AWS::AccountId}:function:datadog-forwarder
    enableXrayTracing: true
  regionShortName: ${file(./region_short_names.yml):${self:provider.region}}
  pythonRequirements:
    dockerizePip: "non-linux"
    dockerRunCmdExtraArgs: ['-v', '${env:HOME}:/root']
    fileName: requirements.txt
    noDeploy:
      - boto3
      - botocore
    useDownloadCache: true
    useStaticCache: true