Select your cookie preferences

We use essential cookies and similar tools that are necessary to provide our site and services. We use performance cookies to collect anonymous statistics, so we can understand how customers use our site and make improvements. Essential cookies cannot be deactivated, but you can choose “Customize” or “Decline” to decline performance cookies.

If you agree, AWS and approved third parties will also use cookies to provide useful site features, remember your preferences, and display relevant content, including relevant advertising. To accept or decline all non-essential cookies, choose “Accept” or “Decline.” To make more detailed choices, choose “Customize.”

Preferences
Contact Us
Feedback
AWS Documentation
Create an AWS Account
PlacementConstraint - EventBridge Scheduler
ContentsSee Also

PlacementConstraint

PDF

An object representing a constraint on task placement.

Contents

expression

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.

Type: String

Length Constraints: Minimum length of 0. Maximum length of 2000.

Required: No

type

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.

Type: String

Valid Values: distinctInstance | memberOf

Required: No

See Also

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

Previous topic:

NetworkConfiguration

Need help?

PrivacySite termsCookie preferences
© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved.