template.yml

AWSTemplateFormatVersion: '2010-09-09'
Description: An AWS Lambda application that retuns Hello World.
Parameters:
  FunctionName:
    Type: String
    Description: Name of the lambda function.
    AllowedPattern: ^.*[^0-9]$
    ConstraintDescription: Must end with non-numeric character.
  ImageUri:
    Type: String
    Description: Image URI.
    AllowedPattern: ^.*$
    ConstraintDescription: Must end with non-numeric character.
Resources:
  LambdaExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: !Sub ${FunctionName}-role
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
            Action:
              - sts:AssumeRole
      Path: "/"
      Policies:
        - PolicyName: !Sub ${FunctionName}-policy
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Effect: Allow
                Action:
                  - logs:*
                Resource: arn:aws:logs:*:*:*
      Tags:
        - Key: "Name"
          Value: !Sub ${FunctionName}-role
  LambdaFunction:
    Type: AWS::Lambda::Function
    Properties:
      FunctionName: !Ref FunctionName
      Architectures:
        - arm64
      PackageType: Image
      Code:
        ImageUri: !Ref ImageUri
      Role: !GetAtt LambdaExecutionRole.Arn
      Timeout: 5
      Tags:
        - Key: "Name"
          Value: !Ref FunctionName
      ReservedConcurrentExecutions: 1