serverless.yaml

service: ${self:custom.general.serviceName}

frameworkVersion: '3'

configValidationMode: error

variablesResolutionMode: 20210326

plugins:
  - serverless-iam-roles-per-function
  - serverless-scriptable-plugin

package:
  individually: true
  patterns:
    - "!./**"

provider:
  name: aws
  region: ${self:custom.general.region}
  lambdaHashingVersion: 20201221
  stage: ${opt:stage, 'dev'}
  logs:
    httpApi: true
  deploymentBucket:
    tags:
      'Project': ${self:service}

functions:
  slackbot:
    name: ${self:custom.functions.slackbot.name}
    package:
      patterns:
        - "!../../functions/slackbot/**"
        - "../../functions/slackbot/src/**"
        - "../../functions/slackbot/package.json"
        - "../../functions/slackbot/package-lock.json"
    handler: functions/slackbot/src/index.handler
    runtime: nodejs16.x
    memorySize: 128
    maximumEventAge: 21600
    maximumRetryAttempts: 2
    timeout: 28
    layers:
      - { Ref: SlackbotLambdaLayer }
    iamRoleStatementsName: ${self:custom.functions.slackbot.name}-role
    iamRoleStatements:
      - Effect: 'Allow'
        Action:
          - 'sqs:SendMessage'
        Resource:
          - ${self:custom.sqs.messagesToBeAnalyzedQueue.arn}
    environment:
      AWS_NODEJS_CONNECTION_REUSE_ENABLED: 1
      SLACK_SIGNING_SECRET: ${ssm:/${self:service}/${self:provider.stage}/functions/slackbot/env-variables/SLACK_SIGNING_SECRET}
      SLACK_BOT_TOKEN: ${ssm:/${self:service}/${self:provider.stage}/functions/slackbot/env-variables/SLACK_BOT_TOKEN}
      SENTIMENT_ANALYSIS_SQS_QUEUE__REGION: ${self:provider.region}
      SENTIMENT_ANALYSIS_SQS_QUEUE__URI: ${self:custom.sqs.messagesToBeAnalyzedQueue.queueUrl}
    events:
      - httpApi:
          path: /slack/events
          method: post
      - httpApi:
          path: /my-name-is
          method: get
  sentiment-analysis:
    name: ${self:custom.functions.sentimentAnalysis.name}
    package:
      patterns:
        - "!../../functions/sentiment-analysis/**"
        - "../../functions/sentiment-analysis/src/**"
        - "../../functions/sentiment-analysis/package.json"
        - "../../functions/sentiment-analysis/package-lock.json"
    handler: functions/sentiment-analysis/src/index.handler
    runtime: nodejs16.x
    memorySize: 256
    maximumEventAge: 21600
    maximumRetryAttempts: 2
    timeout: 120
    layers:
      - { Ref: SentimentAnalysisLambdaLayer }
    iamRoleStatementsName: ${self:custom.functions.sentimentAnalysis.name}-role
    iamRoleStatements:
      - Effect: 'Allow'
        Action:
          - 's3:PutObject'
          - 's3:PutObjectTagging'
        Resource:
          - "arn:aws:s3:::${self:custom.s3.storeResultsS3Bucket.name}/*"
      - Effect: 'Allow'
        Action:
          - 'sqs:ReceiveMessage'
          - 'sqs:GetQueueAttributes'
          - 'sqs:DeleteMessage'
        Resource:
          - ${self:custom.sqs.messagesToBeAnalyzedQueue.arn}
    environment:
      S3_BUCKET_NAME__ANALYSIS_RESULTS: ${self:custom.s3.storeResultsS3Bucket.name}
      S3_BUCKET_REGION__ANALYSIS_RESULTS: ${self:provider.region}
      STORE_SLACK_MESSAGES_CONTENT_AFTER_ANALYSIS_STATUS: ${file(./serverlessSettings.js):getStoreSlackMessageContentAfterAnalysis}
    events:
      - sqs:
          arn:
            Fn::GetAtt:
              - messagesToBeAnalyzedQueue
              - Arn
          batchSize: 1
          maximumBatchingWindow: 1
          
layers:
  Slackbot:
    name: ${self:custom.functions.slackbot.name}-layer
    description: "The layer for the ${self:custom.functions.slackbot.name} lambda function in the ${self:provider.stage} environment."
    package:
      artifact: ../../functions/slackbot/${self:custom.functions.slackbot.layerNameZip}
    compatibleRuntimes:
      - nodejs16.x
    retain: false
  SentimentAnalysis:
    name:  ${self:custom.functions.sentimentAnalysis.name}-layer
    description: "The layer for the ${self:custom.functions.sentimentAnalysis.name} lambda function in the ${self:provider.stage} environment."
    package:
      artifact: ../../functions/sentiment-analysis/${self:custom.functions.sentimentAnalysis.layerNameZip}
    compatibleRuntimes:
      - nodejs16.x
    retain: false

resources:
  Resources:
    messagesToBeAnalyzedQueue:
      Type: "AWS::SQS::Queue"
      Properties:
        QueueName: ${self:custom.sqs.messagesToBeAnalyzedQueue.name}
        VisibilityTimeout: 120
    storeResultsS3Bucket:
      Type: "AWS::S3::Bucket"
      Properties:
        BucketName: ${self:custom.s3.storeResultsS3Bucket.name}
        AccessControl: Private

custom:
  general:
    serviceName: ${file(./serverlessSettings.js):getServiceName}
    region: ${file(./serverlessSettings.js):getRegion}
  functions:
    slackbot:
      name: ${self:provider.stage}-${self:service}-slackbot
      layerNameZip: ${self:custom.functions.slackbot.name}.lambda-layer.zip
    sentimentAnalysis:
      name: ${self:provider.stage}-${self:service}-sentimentAnalysis
      layerNameZip: ${self:custom.functions.sentimentAnalysis.name}.lambda-layer.zip
  sqs:
    messagesToBeAnalyzedQueue:
      name: ${self:provider.stage}-${self:service}-messagesToBeAnalyzedQueue
      arn: 
        Fn::GetAtt: [ messagesToBeAnalyzedQueue, Arn ]
      queueUrl: 
        Fn::GetAtt: [ messagesToBeAnalyzedQueue, QueueUrl ]
  s3:
    storeResultsS3Bucket:
      name: ${self:provider.stage}-${self:service}-${file(./serverlessSettings.js):getS3StoreResultsBucketSuffix}
  scriptable:
    commands:
      prepare-layer-zip-lambda-slackbot:
        - (cd ../../functions/slackbot/ && rm -rf node_modules)
        - (cd ../../functions/slackbot/ && npm install --omit=dev)
        - (cd ../../functions/slackbot/ && rm -rf nodejs)
        - (cd ../../functions/slackbot/ && mkdir nodejs)
        - (cd ../../functions/slackbot/ && mv node_modules nodejs)
        - (cd ../../functions/slackbot/ && zip -q -r ${self:custom.functions.slackbot.layerNameZip} nodejs)
        - (cd ../../functions/slackbot/ && rm -rf nodejs)
      prepare-layer-zip-lambda-sentiment-analysis:
        - (cd ../../functions/sentiment-analysis/ && rm -rf node_modules)
        - (cd ../../functions/sentiment-analysis/ && npm install --omit=dev)
        - (cd ../../functions/sentiment-analysis/ && rm -rf nodejs)
        - (cd ../../functions/sentiment-analysis/ && mkdir nodejs)
        - (cd ../../functions/sentiment-analysis/ && mv node_modules nodejs)
        - (cd ../../functions/sentiment-analysis/ && zip -q -r ${self:custom.functions.sentimentAnalysis.layerNameZip} nodejs)
        - (cd ../../functions/sentiment-analysis/ && rm -rf nodejs)