template.yaml

Transform: AWS::Serverless-2016-10-31
Resources:
  LexGenAIBotLambda:
    Type: AWS::Serverless::Function
    Properties:
      Description: !Sub
        - Stack ${AWS::StackName} Function ${ResourceName}
        - ResourceName: LexGenAIBotLambda
      CodeUri: src/LexGenAIBotLambda
      Handler: TextGeneration.lambda_handler
      Runtime: python3.11
      MemorySize: 3008
      Timeout: 30
      Tracing: Active
      Layers:
        - !Ref Boto3Layer
  LexGenAIBotLambdaLogGroup:
    Type: AWS::Logs::LogGroup
    DeletionPolicy: Retain
    Properties:
      LogGroupName: !Sub /aws/lambda/${LexGenAIBotLambda}
  Boto3Layer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      Description: !Sub
        - Stack ${AWS::StackName} Layer ${ResourceName}
        - ResourceName: Boto3Layer
      ContentUri: src/Boto3PillowPyshorteners.zip
      RetentionPolicy: Delete
    Metadata:
      BuildMethod: python3.11
  LexGenAIBotLambdaServiceRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service: lambda.amazonaws.com
            Action: sts:AssumeRole
      ManagedPolicyArns:
        - !Join
          - ''
          - - 'arn:'
            - !Ref AWS::Partition
            - ':iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
  LexGenAIBotLambdaServiceRoleDefaultPolicy:
    Type: AWS::IAM::Policy
    Properties:
      PolicyName: LexGenAIBotLambdaServiceRoleDefaultPolicy
      PolicyDocument:
        Statement:
          - Action:
              - lex:*
              - logs:*
              - s3:DeleteObject
              - s3:GetObject
              - s3:ListBucket
              - s3:PutObject
            Effect: Allow
            Resource: '*'
          - Action: bedrock:InvokeModel
            Effect: Allow
            Resource: !Join
              - ''
              - - 'arn:aws:bedrock:'
                - !Ref AWS::Region
                - '::foundation-model/anthropic.claude-v2'
        Version: '2012-10-17'
      Roles:
        - !Ref LexGenAIBotLambdaServiceRole
  CfnLexGenAIDemoRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service: lexv2.amazonaws.com
            Action: sts:AssumeRole
      ManagedPolicyArns:
        - !Join
          - ''
          - - 'arn:'
            - !Ref AWS::Partition
            - ':iam::aws:policy/AWSLambdaExecute'
  LexGenAIBot:
    Type: AWS::Lex::Bot
    Properties:
      IdleSessionTTLInSeconds: 300
      RoleArn: !GetAtt CfnLexGenAIDemoRole.Arn
      Name: LexGenAIBot
      DataPrivacy:
        ChildDirected: false
      AutoBuildBotLocales: true
      BotLocales:
        - Intents:
            - InitialResponseSetting:
                CodeHook:
                  EnableCodeHookInvocation: true
                  IsActive: true
                  PostCodeHookSpecification: {}
              IntentClosingSetting:
                ClosingResponse:
                  MessageGroupsList:
                    - Message:
                        PlainTextMessage:
                          Value: Hi there, I'm GenAI Bot. How can I help you?
              Name: WelcomeIntent
              SampleUtterances:
                - Utterance: Hi
                - Utterance: Hey there
                - Utterance: Hello
                - Utterance: I need some help
                - Utterance: Help needed
                - Utterance: Can I get some help?
            - FulfillmentCodeHook:
                Enabled: true
                IsActive: true
                PostFulfillmentStatusSpecification: {}
              InitialResponseSetting:
                CodeHook:
                  EnableCodeHookInvocation: true
                  IsActive: true
                  PostCodeHookSpecification: {}
              Name: GenerateTextIntent
              SampleUtterances:
                - Utterance: Generate content for
                - Utterance: 'Create text '
                - Utterance: 'Create a response for '
                - Utterance: Text to be generated for
            - FulfillmentCodeHook:
                Enabled: true
                IsActive: true
                PostFulfillmentStatusSpecification: {}
              InitialResponseSetting:
                CodeHook:
                  EnableCodeHookInvocation: true
                  IsActive: true
                  PostCodeHookSpecification: {}
              Name: FallbackIntent
              ParentIntentSignature: AMAZON.FallbackIntent
          LocaleId: en_US
          NluConfidenceThreshold: 0.4
      Description: Bot created demonstration of GenAI capabilities.
      TestBotAliasSettings:
        BotAliasLocaleSettings:
          - BotAliasLocaleSetting:
              CodeHookSpecification:
                LambdaCodeHook:
                  CodeHookInterfaceVersion: '1.0'
                  LambdaArn: !GetAtt LexGenAIBotLambda.Arn
              Enabled: true
            LocaleId: en_US
  LexGenAIBotLambdaInvoke:
    Type: AWS::Lambda::Permission
    Properties:
      FunctionName: !Ref LexGenAIBotLambda
      Action: lambda:InvokeFunction
      Principal: lexv2.amazonaws.com