<p>Creates a new Amazon ECS cluster. By default, your account receives a <code>default</code> cluster when you launch your first container instance. However, you can create your own cluster with a unique name with the <code>CreateCluster</code> action.</p> <note> <p>When you call the <a>CreateCluster</a> API operation, Amazon ECS attempts to create the Amazon ECS service-linked role for your account. This is so that it can manage required resources in other Amazon Web Services services on your behalf. However, if the user that makes the call doesn't have permissions to create the service-linked role, it isn't created. For more information, see <a href="https://docs.aws.amazon.com/AmazonECS/latest/developerguide/using-service-linked-roles.html">Using service-linked roles for Amazon ECS</a> in the <i>Amazon Elastic Container Service Developer Guide</i>.</p> </note>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

<p>Creates a new Amazon ECS cluster. By default, your account receives a <code>default</code> cluster when you launch your first container instance. However, you can create your own cluster with a unique name with the <code>CreateCluster</code> action.</p> <note> <p>When you call the <a>CreateCluster</a> API operation, Amazon ECS attempts to create the Amazon ECS service-linked role for your account. This is so that it can manage required resources in other Amazon Web Services services on your behalf. However, if the user that makes the call doesn't have permissions to create the service-linked role, it isn't created. For more information, see <a href="https://docs.aws.amazon.com/AmazonECS/latest/developerguide/using-service-linked-roles.html">Using service-linked roles for Amazon ECS</a> in the <i>Amazon Elastic Container Service Developer Guide</i>.</p> </note>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}