Class: Aws::ECS::Types::PlacementConstraint

Inherits:

Struct

• Object
• Struct
• Aws::ECS::Types::PlacementConstraint

Includes:

Structure

Defined in:

lib/aws-sdk-ecs/types.rb

Overview

An object representing a constraint on task placement. For more information, see [Task placement constraints] in the *Amazon Elastic Container Service Developer Guide*.

<note markdown=“1”> If you’re using the Fargate launch type, task placement constraints aren’t supported.

</note>

[1]: docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-constraints.html

See Also:

• AWS API Documentation

Constant Summary

SENSITIVE =

[]

Instance Attribute Summary

• #expression ⇒ String

  A cluster query language expression to apply to the constraint.

• #type ⇒ String

  The type of constraint.

Instance Attribute Details

#expression ⇒ String

A cluster query language expression to apply to the constraint. The expression can have a maximum length of 2000 characters. You can’t specify an expression if the constraint type is ‘distinctInstance`. For more information, see [Cluster query language] in the *Amazon Elastic Container Service Developer Guide*.

[1]: docs.aws.amazon.com/AmazonECS/latest/developerguide/cluster-query-language.html

Returns:

• (String)

# File 'lib/aws-sdk-ecs/types.rb', line 7411

class PlacementConstraint < Struct.new(
  :type,
  :expression)
  SENSITIVE = []
  include Aws::Structure
end

#type ⇒ String

The type of constraint. Use ‘distinctInstance` to ensure that each task in a particular group is running on a different container instance. Use `memberOf` to restrict the selection to a group of valid candidates.

Returns:

• (String)

# File 'lib/aws-sdk-ecs/types.rb', line 7411

class PlacementConstraint < Struct.new(
  :type,
  :expression)
  SENSITIVE = []
  include Aws::Structure
end