PlacementConstraint
class PlacementConstraint
An object representing a constraint on task placement.
Types
Properties
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A cluster query language expression to apply to the constraint. You cannot specify an expression if the constraint type is distinctInstance
. For more information, see Cluster query language in the Amazon ECS Developer Guide.
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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.