AWS::ECS::TaskDefinition strict attributes

[deleugpn]

cfn-lint version: 0.30.1

Description of issue.
Attributes Cpu and Memory are too strict for AWS::ECS::TaskDefinition. They are documented as String but they are obviously numbers. As such, it would be nice if we could use numeric values in our templates for better readability.

Template sample:

  ProxyTaskDefinition:
    Type: AWS::ECS::TaskDefinition
    Properties:
      ContainerDefinitions:
        - Essential: true
          Image: !Ref Image
          LogConfiguration:
            LogDriver: awslogs
            Options:
              awslogs-group: !Ref LogGroup
              awslogs-region: !Ref 'AWS::Region'
              awslogs-stream-prefix: task
          Name: nginx
          PortMappings:
            - ContainerPort: 80
          Privileged: false
      Cpu: 512
      Memory: 1024
      Family: nginx-proxy
      NetworkMode: awsvpc
      ExecutionRoleArn: !ImportValue ECSTaskExecutionRoleArn
      TaskRoleArn: !ImportValue ECSTaskExecutionRoleArn
      RequiresCompatibilities: [FARGATE]

[PatMyron]

duplicate of #547