Amazon EC2 Container Service
API Reference (API Version 2014-11-13)


An object representing a constraint on task placement in the task definition. For more information, see Task Placement Constraints in the Amazon EC2 Container Service Developer Guide.



A cluster query language expression to apply to the constraint. For more information, see Cluster Query Language in the Amazon EC2 Container Service Developer Guide.

Type: String

Required: No


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.

Type: String

Valid Values: memberOf

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

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