template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  workshop-lambda
    
  workshop of Gert with Lambda

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Runtime: python3.6
    Timeout: 5
    MemorySize: 128
    AutoPublishAlias: live # More info about Safe Deployments: https://github.com/awslabs/serverless-application-model/blob/master/docs/safe_lambda_deployments.rst
    Tracing: Active
    DeploymentPreference:
      Type: Canary10Percent5Minutes

Resources:
  ApiGateway:
    Type: AWS::Serverless::Api
    Properties:
      Name: workshop-lambda
      DefinitionUri: swagger.yaml
      StageName: Prod
      EndpointConfiguration: REGIONAL
      Variables:
        Region: !Ref AWS::Region
        AccountId: !Ref AWS::AccountId
        ApidocsUrl: s3-eu-west-1.amazonaws.com/workshop-tim/workshop-lambda/docs/index.html
      MethodSettings:
        - MetricsEnabled: True
          LoggingLevel: INFO
          ResourcePath: "/"
          HttpMethod: "*"
          DataTraceEnabled: True

  LambdaOneFunctionLogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: /aws/lambda/lambda-one-cfn
      RetentionInDays: 7

  LambdaOneFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      FunctionName: lambda-one-cfn
      Handler: my_module/lambda_one.lambda_handler
      CodeUri: build/
      Events:
        GetResource:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            RestApiId: !Ref ApiGateway
            Path: /rest/one
            Method: GET
      Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
        Variables:
          PARAM1: VALUE
      DeploymentPreference:
        Type: AllAtOnce
        Alarms:
          - !Ref LambdaOneErrorAlarm
          - !Ref LambdaOneLiveErrorAlarm
        Hooks:
          PreTraffic: !Ref PreTrafficLambdaOneFunction

  LambdaOneErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: errors on lambda one
      AlarmName: Check-Lambda-One-Errors
      ActionsEnabled: True
      ComparisonOperator: GreaterThanThreshold
      EvaluationPeriods: 1
      Namespace: AWS/Lambda
      MetricName: Errors
      Dimensions:
        - Name: FunctionName
          Value: !Ref LambdaOneFunction
        - Name: Resource
          Value: !Ref LambdaOneFunction
      Period: 60
      Statistic: Sum
      Threshold: 0
      TreatMissingData: notBreaching

  LambdaOneLiveErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: errors on lambda one live alias
      AlarmName: Check-Lambda-One-Live-Errors
      ActionsEnabled: True
      ComparisonOperator: GreaterThanThreshold
      EvaluationPeriods: 1
      Namespace: AWS/Lambda
      MetricName: Errors
      Dimensions:
        - Name: FunctionName
          Value: !Ref LambdaOneFunction
        - Name: Resource
          Value: !Join [ ':', [ !Ref LambdaOneFunction, 'live' ] ]
      Period: 60
      Statistic: Sum
      Threshold: 0
      TreatMissingData: notBreaching

  PreTrafficLambdaOneFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: CodeDeployHook_lamda-one-pre-traffic-cfn
      Handler: my_module/lambda_one_pre_traffic_hook.handler
      CodeUri: build/
      DeploymentPreference:
        Enabled: false

  # Sample policy to add additional permissions to your Lambda
  LambdaOnePreHookAdditionalPermission:
    Type: AWS::IAM::Policy
    Properties:
      PolicyName: root
      PolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Action:
              - lambda:InvokeFunction
              - codedeploy:PutLifecycleEventHookExecutionStatus
            Resource: "*"
      Roles:
        - !Ref PreTrafficLambdaOneFunctionRole # Sample policy to demonstrate Implicit IAM Role created with SAM

  LambdaTwoFunctionLogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: /aws/lambda/lambda-two-cfn
      RetentionInDays: 7

  LambdaTwoFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      FunctionName: lambda-two-cfn
      Handler: my_module/lambda_two.lambda_handler
      CodeUri: build/
      Events:
        GetResource:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            RestApiId: !Ref ApiGateway
            Path: /rest/two
            Method: GET
      DeploymentPreference:
        Alarms:
          - !Ref LambdaTwoErrorAlarm
          - !Ref LambdaTwoLiveErrorAlarm

  LambdaTwoErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: errors on lambda two
      AlarmName: Check-Lambda-Two-Errors
      ActionsEnabled: True
      ComparisonOperator: GreaterThanThreshold
      EvaluationPeriods: 1
      Namespace: AWS/Lambda
      MetricName: Errors
      Dimensions:
        - Name: FunctionName
          Value: !Ref LambdaTwoFunction
        - Name: Resource
          Value: !Ref LambdaTwoFunction
      Period: 60
      Statistic: Sum
      Threshold: 0
      TreatMissingData: notBreaching

  LambdaTwoLiveErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: errors on lambda two live alias
      AlarmName: Check-Lambda-Two-Live-Errors
      ActionsEnabled: True
      ComparisonOperator: GreaterThanThreshold
      EvaluationPeriods: 1
      Namespace: AWS/Lambda
      MetricName: Errors
      Dimensions:
        - Name: FunctionName
          Value: !Ref LambdaTwoFunction
        - Name: Resource
          Value: !Join [ ':', [ !Ref LambdaTwoFunction, 'live' ] ]
      Period: 60
      Statistic: Sum
      Threshold: 0
      TreatMissingData: notBreaching

Outputs:
  # FirstApigwURL:
  #   Description: "API Gateway endpoint URL for Prod environment for First Function"
  #   Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/first/proxy"
  LambdaOneFunction:
    Description: "Lambda One Function ARN"
    Value: !GetAtt LambdaOneFunction.Arn
  LambdaTwoFunction:
    Description: "Lambda Two Function ARN"
    Value: !GetAtt LambdaTwoFunction.Arn