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

Amazon ECS Clusters

An Amazon ECS cluster is a logical grouping of container instances that you can place tasks on. When you first use Amazon ECS, a default cluster is created for you, but you can create multiple clusters in an account to keep your resources separate.

Cluster Concepts

  • Clusters can contain multiple different container instance types.

  • Clusters are region-specific.

  • Container instances can only be a part of one cluster at a time.

  • You can create custom IAM policies for your clusters to allow or restrict users' access to specific clusters. For more information, see the Clusters section in Amazon ECS IAM Policy Examples.

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