Interface CfnRule.IPlacementConstraintProperty

An object representing a constraint on task placement.

Namespace: Amazon.CDK.AWS.Events

Assembly: Amazon.CDK.Lib.dll

Syntax (csharp)

public interface CfnRule.IPlacementConstraintProperty

Syntax (vb)

Public Interface CfnRule.IPlacementConstraintProperty

Remarks

To learn more, see Task Placement Constraints in the Amazon Elastic Container Service Developer Guide.

See: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-placementconstraint.html

ExampleMetadata: fixture=_generated

Examples

// The code below shows an example of how to instantiate this type.
             // The values are placeholders you should change.
             using Amazon.CDK.AWS.Events;

             var placementConstraintProperty = new PlacementConstraintProperty {
                 Expression = "expression",
                 Type = "type"
             };

Synopsis

Properties

Expression	A cluster query language expression to apply to the constraint.
Type	The type of constraint.

Properties

Expression

A cluster query language expression to apply to the constraint.

string? Expression { get; }

Property Value

string

Remarks

You cannot specify an expression if the constraint type is distinctInstance . To learn more, see Cluster Query Language in the Amazon Elastic Container Service Developer Guide.

See: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-placementconstraint.html#cfn-events-rule-placementconstraint-expression

Type

The type of constraint.

string? Type { get; }

Property Value

string

Remarks

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.

See: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-events-rule-placementconstraint.html#cfn-events-rule-placementconstraint-type