Class: Aws::ECS::Types::TaskDefinitionPlacementConstraint

Inherits:
Struct
  • Object
show all
Includes:
Structure
Defined in:
lib/aws-sdk-ecs/types.rb

Overview

Note:

When making an API call, you may pass TaskDefinitionPlacementConstraint data as a hash:

{
  type: "memberOf", # accepts memberOf
  expression: "String",
}

An object representing a constraint on task placement in the task definition.

If you are using the Fargate launch type, task placement constraints are not supported.

For more information, see [Task Placement Constraints] in the *Amazon Elastic Container Service Developer Guide*.

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

Instance Attribute Summary collapse

Instance Attribute Details

#expressionString

A cluster query language expression to apply to the constraint. 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)


5455
5456
5457
5458
5459
# File 'lib/aws-sdk-ecs/types.rb', line 5455

class TaskDefinitionPlacementConstraint < Struct.new(
  :type,
  :expression)
  include Aws::Structure
end

#typeString

The type of constraint. The ‘DistinctInstance` constraint ensures that each task in a particular group is running on a different container instance. The `MemberOf` constraint restricts selection to be from a group of valid candidates.

Returns:

  • (String)


5455
5456
5457
5458
5459
# File 'lib/aws-sdk-ecs/types.rb', line 5455

class TaskDefinitionPlacementConstraint < Struct.new(
  :type,
  :expression)
  include Aws::Structure
end