AWS API Changes

2026/01/29 - Amazon GameLift - 3 updated api methods

Changes Amazon GameLift Servers now supports automatic scaling to and from zero instances based on game session activity. Fleets scale down to zero following a defined period of no game session activity and scale up from zero when game sessions are requested, providing an option for cost optimization.

DescribeFleetCapacity (updated)

Link ¶
Changes (response)

{'FleetCapacity': {'ManagedCapacityConfiguration': {'ScaleInAfterInactivityMinutes': 'integer',
                                                    'ZeroCapacityStrategy': 'MANUAL '
                                                                            '| '
                                                                            'SCALE_TO_AND_FROM_ZERO'}}}

This API works with the following fleet types: EC2, Container

Retrieves the resource capacity settings for one or more fleets. For a container fleet, this operation also returns counts for game server container groups.

With multi-location fleets, this operation retrieves data for the fleet's home Region only. To retrieve capacity for remote locations, see https://docs.aws.amazon.com/gamelift/latest/apireference/API_DescribeFleetLocationCapacity.html.

This operation can be used in the following ways:

To get capacity data for one or more specific fleets, provide a list of fleet IDs or fleet ARNs.
To get capacity data for all fleets, do not provide a fleet identifier.

When requesting multiple fleets, use the pagination parameters to retrieve results as a set of sequential pages.

If successful, a FleetCapacity object is returned for each requested fleet ID. Each FleetCapacity object includes a Location property, which is set to the fleet's home Region. Capacity values are returned only for fleets that currently exist.

Learn more

Setting up Amazon GameLift Servers fleets

GameLift metrics for fleets

See also: AWS API Documentation

Request Syntax

client.describe_fleet_capacity(
    FleetIds=[
        'string',
    ],
    Limit=123,
    NextToken='string'
)

type FleetIds:

list

param FleetIds:

A unique identifier for the fleet to retrieve capacity information for. You can use either the fleet ID or ARN value. Leave this parameter empty to retrieve capacity information for all fleets.

(string) --

type Limit:

integer

param Limit:

The maximum number of results to return. Use this parameter with NextToken to get results as a set of sequential pages. This parameter is ignored when the request specifies one or a list of fleet IDs.

type NextToken:

string

param NextToken:

A token that indicates the start of the next sequential page of results. Use the token that is returned with a previous call to this operation. To start at the beginning of the result set, do not specify a value. This parameter is ignored when the request specifies one or a list of fleet IDs.

rtype:

dict

returns:

Response Syntax

{
    'FleetCapacity': [
        {
            'FleetId': 'string',
            'FleetArn': 'string',
            'InstanceType': 't2.micro'|'t2.small'|'t2.medium'|'t2.large'|'c3.large'|'c3.xlarge'|'c3.2xlarge'|'c3.4xlarge'|'c3.8xlarge'|'c4.large'|'c4.xlarge'|'c4.2xlarge'|'c4.4xlarge'|'c4.8xlarge'|'c5.large'|'c5.xlarge'|'c5.2xlarge'|'c5.4xlarge'|'c5.9xlarge'|'c5.12xlarge'|'c5.18xlarge'|'c5.24xlarge'|'c5a.large'|'c5a.xlarge'|'c5a.2xlarge'|'c5a.4xlarge'|'c5a.8xlarge'|'c5a.12xlarge'|'c5a.16xlarge'|'c5a.24xlarge'|'r3.large'|'r3.xlarge'|'r3.2xlarge'|'r3.4xlarge'|'r3.8xlarge'|'r4.large'|'r4.xlarge'|'r4.2xlarge'|'r4.4xlarge'|'r4.8xlarge'|'r4.16xlarge'|'r5.large'|'r5.xlarge'|'r5.2xlarge'|'r5.4xlarge'|'r5.8xlarge'|'r5.12xlarge'|'r5.16xlarge'|'r5.24xlarge'|'r5a.large'|'r5a.xlarge'|'r5a.2xlarge'|'r5a.4xlarge'|'r5a.8xlarge'|'r5a.12xlarge'|'r5a.16xlarge'|'r5a.24xlarge'|'m3.medium'|'m3.large'|'m3.xlarge'|'m3.2xlarge'|'m4.large'|'m4.xlarge'|'m4.2xlarge'|'m4.4xlarge'|'m4.10xlarge'|'m5.large'|'m5.xlarge'|'m5.2xlarge'|'m5.4xlarge'|'m5.8xlarge'|'m5.12xlarge'|'m5.16xlarge'|'m5.24xlarge'|'m5a.large'|'m5a.xlarge'|'m5a.2xlarge'|'m5a.4xlarge'|'m5a.8xlarge'|'m5a.12xlarge'|'m5a.16xlarge'|'m5a.24xlarge'|'c5d.large'|'c5d.xlarge'|'c5d.2xlarge'|'c5d.4xlarge'|'c5d.9xlarge'|'c5d.12xlarge'|'c5d.18xlarge'|'c5d.24xlarge'|'c6a.large'|'c6a.xlarge'|'c6a.2xlarge'|'c6a.4xlarge'|'c6a.8xlarge'|'c6a.12xlarge'|'c6a.16xlarge'|'c6a.24xlarge'|'c6i.large'|'c6i.xlarge'|'c6i.2xlarge'|'c6i.4xlarge'|'c6i.8xlarge'|'c6i.12xlarge'|'c6i.16xlarge'|'c6i.24xlarge'|'r5d.large'|'r5d.xlarge'|'r5d.2xlarge'|'r5d.4xlarge'|'r5d.8xlarge'|'r5d.12xlarge'|'r5d.16xlarge'|'r5d.24xlarge'|'m6g.medium'|'m6g.large'|'m6g.xlarge'|'m6g.2xlarge'|'m6g.4xlarge'|'m6g.8xlarge'|'m6g.12xlarge'|'m6g.16xlarge'|'c6g.medium'|'c6g.large'|'c6g.xlarge'|'c6g.2xlarge'|'c6g.4xlarge'|'c6g.8xlarge'|'c6g.12xlarge'|'c6g.16xlarge'|'r6g.medium'|'r6g.large'|'r6g.xlarge'|'r6g.2xlarge'|'r6g.4xlarge'|'r6g.8xlarge'|'r6g.12xlarge'|'r6g.16xlarge'|'c6gn.medium'|'c6gn.large'|'c6gn.xlarge'|'c6gn.2xlarge'|'c6gn.4xlarge'|'c6gn.8xlarge'|'c6gn.12xlarge'|'c6gn.16xlarge'|'c7g.medium'|'c7g.large'|'c7g.xlarge'|'c7g.2xlarge'|'c7g.4xlarge'|'c7g.8xlarge'|'c7g.12xlarge'|'c7g.16xlarge'|'r7g.medium'|'r7g.large'|'r7g.xlarge'|'r7g.2xlarge'|'r7g.4xlarge'|'r7g.8xlarge'|'r7g.12xlarge'|'r7g.16xlarge'|'m7g.medium'|'m7g.large'|'m7g.xlarge'|'m7g.2xlarge'|'m7g.4xlarge'|'m7g.8xlarge'|'m7g.12xlarge'|'m7g.16xlarge'|'g5g.xlarge'|'g5g.2xlarge'|'g5g.4xlarge'|'g5g.8xlarge'|'g5g.16xlarge'|'r6i.large'|'r6i.xlarge'|'r6i.2xlarge'|'r6i.4xlarge'|'r6i.8xlarge'|'r6i.12xlarge'|'r6i.16xlarge'|'c6gd.medium'|'c6gd.large'|'c6gd.xlarge'|'c6gd.2xlarge'|'c6gd.4xlarge'|'c6gd.8xlarge'|'c6gd.12xlarge'|'c6gd.16xlarge'|'c6in.large'|'c6in.xlarge'|'c6in.2xlarge'|'c6in.4xlarge'|'c6in.8xlarge'|'c6in.12xlarge'|'c6in.16xlarge'|'c7a.medium'|'c7a.large'|'c7a.xlarge'|'c7a.2xlarge'|'c7a.4xlarge'|'c7a.8xlarge'|'c7a.12xlarge'|'c7a.16xlarge'|'c7gd.medium'|'c7gd.large'|'c7gd.xlarge'|'c7gd.2xlarge'|'c7gd.4xlarge'|'c7gd.8xlarge'|'c7gd.12xlarge'|'c7gd.16xlarge'|'c7gn.medium'|'c7gn.large'|'c7gn.xlarge'|'c7gn.2xlarge'|'c7gn.4xlarge'|'c7gn.8xlarge'|'c7gn.12xlarge'|'c7gn.16xlarge'|'c7i.large'|'c7i.xlarge'|'c7i.2xlarge'|'c7i.4xlarge'|'c7i.8xlarge'|'c7i.12xlarge'|'c7i.16xlarge'|'m6a.large'|'m6a.xlarge'|'m6a.2xlarge'|'m6a.4xlarge'|'m6a.8xlarge'|'m6a.12xlarge'|'m6a.16xlarge'|'m6gd.medium'|'m6gd.large'|'m6gd.xlarge'|'m6gd.2xlarge'|'m6gd.4xlarge'|'m6gd.8xlarge'|'m6gd.12xlarge'|'m6gd.16xlarge'|'m6i.large'|'m6i.xlarge'|'m6i.2xlarge'|'m6i.4xlarge'|'m6i.8xlarge'|'m6i.12xlarge'|'m6i.16xlarge'|'m7a.medium'|'m7a.large'|'m7a.xlarge'|'m7a.2xlarge'|'m7a.4xlarge'|'m7a.8xlarge'|'m7a.12xlarge'|'m7a.16xlarge'|'m7gd.medium'|'m7gd.large'|'m7gd.xlarge'|'m7gd.2xlarge'|'m7gd.4xlarge'|'m7gd.8xlarge'|'m7gd.12xlarge'|'m7gd.16xlarge'|'m7i.large'|'m7i.xlarge'|'m7i.2xlarge'|'m7i.4xlarge'|'m7i.8xlarge'|'m7i.12xlarge'|'m7i.16xlarge'|'r6gd.medium'|'r6gd.large'|'r6gd.xlarge'|'r6gd.2xlarge'|'r6gd.4xlarge'|'r6gd.8xlarge'|'r6gd.12xlarge'|'r6gd.16xlarge'|'r7a.medium'|'r7a.large'|'r7a.xlarge'|'r7a.2xlarge'|'r7a.4xlarge'|'r7a.8xlarge'|'r7a.12xlarge'|'r7a.16xlarge'|'r7gd.medium'|'r7gd.large'|'r7gd.xlarge'|'r7gd.2xlarge'|'r7gd.4xlarge'|'r7gd.8xlarge'|'r7gd.12xlarge'|'r7gd.16xlarge'|'r7i.large'|'r7i.xlarge'|'r7i.2xlarge'|'r7i.4xlarge'|'r7i.8xlarge'|'r7i.12xlarge'|'r7i.16xlarge'|'r7i.24xlarge'|'r7i.48xlarge'|'c5ad.large'|'c5ad.xlarge'|'c5ad.2xlarge'|'c5ad.4xlarge'|'c5ad.8xlarge'|'c5ad.12xlarge'|'c5ad.16xlarge'|'c5ad.24xlarge'|'c5n.large'|'c5n.xlarge'|'c5n.2xlarge'|'c5n.4xlarge'|'c5n.9xlarge'|'c5n.18xlarge'|'r5ad.large'|'r5ad.xlarge'|'r5ad.2xlarge'|'r5ad.4xlarge'|'r5ad.8xlarge'|'r5ad.12xlarge'|'r5ad.16xlarge'|'r5ad.24xlarge'|'c6id.large'|'c6id.xlarge'|'c6id.2xlarge'|'c6id.4xlarge'|'c6id.8xlarge'|'c6id.12xlarge'|'c6id.16xlarge'|'c6id.24xlarge'|'c6id.32xlarge'|'c8g.medium'|'c8g.large'|'c8g.xlarge'|'c8g.2xlarge'|'c8g.4xlarge'|'c8g.8xlarge'|'c8g.12xlarge'|'c8g.16xlarge'|'c8g.24xlarge'|'c8g.48xlarge'|'m5ad.large'|'m5ad.xlarge'|'m5ad.2xlarge'|'m5ad.4xlarge'|'m5ad.8xlarge'|'m5ad.12xlarge'|'m5ad.16xlarge'|'m5ad.24xlarge'|'m5d.large'|'m5d.xlarge'|'m5d.2xlarge'|'m5d.4xlarge'|'m5d.8xlarge'|'m5d.12xlarge'|'m5d.16xlarge'|'m5d.24xlarge'|'m5dn.large'|'m5dn.xlarge'|'m5dn.2xlarge'|'m5dn.4xlarge'|'m5dn.8xlarge'|'m5dn.12xlarge'|'m5dn.16xlarge'|'m5dn.24xlarge'|'m5n.large'|'m5n.xlarge'|'m5n.2xlarge'|'m5n.4xlarge'|'m5n.8xlarge'|'m5n.12xlarge'|'m5n.16xlarge'|'m5n.24xlarge'|'m6id.large'|'m6id.xlarge'|'m6id.2xlarge'|'m6id.4xlarge'|'m6id.8xlarge'|'m6id.12xlarge'|'m6id.16xlarge'|'m6id.24xlarge'|'m6id.32xlarge'|'m6idn.large'|'m6idn.xlarge'|'m6idn.2xlarge'|'m6idn.4xlarge'|'m6idn.8xlarge'|'m6idn.12xlarge'|'m6idn.16xlarge'|'m6idn.24xlarge'|'m6idn.32xlarge'|'m6in.large'|'m6in.xlarge'|'m6in.2xlarge'|'m6in.4xlarge'|'m6in.8xlarge'|'m6in.12xlarge'|'m6in.16xlarge'|'m6in.24xlarge'|'m6in.32xlarge'|'m8g.medium'|'m8g.large'|'m8g.xlarge'|'m8g.2xlarge'|'m8g.4xlarge'|'m8g.8xlarge'|'m8g.12xlarge'|'m8g.16xlarge'|'m8g.24xlarge'|'m8g.48xlarge'|'r5dn.large'|'r5dn.xlarge'|'r5dn.2xlarge'|'r5dn.4xlarge'|'r5dn.8xlarge'|'r5dn.12xlarge'|'r5dn.16xlarge'|'r5dn.24xlarge'|'r5n.large'|'r5n.xlarge'|'r5n.2xlarge'|'r5n.4xlarge'|'r5n.8xlarge'|'r5n.12xlarge'|'r5n.16xlarge'|'r5n.24xlarge'|'r6a.large'|'r6a.xlarge'|'r6a.2xlarge'|'r6a.4xlarge'|'r6a.8xlarge'|'r6a.12xlarge'|'r6a.16xlarge'|'r6a.24xlarge'|'r6a.32xlarge'|'r6a.48xlarge'|'r6id.large'|'r6id.xlarge'|'r6id.2xlarge'|'r6id.4xlarge'|'r6id.8xlarge'|'r6id.12xlarge'|'r6id.16xlarge'|'r6id.24xlarge'|'r6id.32xlarge'|'r6idn.large'|'r6idn.xlarge'|'r6idn.2xlarge'|'r6idn.4xlarge'|'r6idn.8xlarge'|'r6idn.12xlarge'|'r6idn.16xlarge'|'r6idn.24xlarge'|'r6idn.32xlarge'|'r6in.large'|'r6in.xlarge'|'r6in.2xlarge'|'r6in.4xlarge'|'r6in.8xlarge'|'r6in.12xlarge'|'r6in.16xlarge'|'r6in.24xlarge'|'r6in.32xlarge'|'r8g.medium'|'r8g.large'|'r8g.xlarge'|'r8g.2xlarge'|'r8g.4xlarge'|'r8g.8xlarge'|'r8g.12xlarge'|'r8g.16xlarge'|'r8g.24xlarge'|'r8g.48xlarge'|'m4.16xlarge'|'c6a.32xlarge'|'c6a.48xlarge'|'c6i.32xlarge'|'r6i.24xlarge'|'r6i.32xlarge'|'c6in.24xlarge'|'c6in.32xlarge'|'c7a.24xlarge'|'c7a.32xlarge'|'c7a.48xlarge'|'c7i.24xlarge'|'c7i.48xlarge'|'m6a.24xlarge'|'m6a.32xlarge'|'m6a.48xlarge'|'m6i.24xlarge'|'m6i.32xlarge'|'m7a.24xlarge'|'m7a.32xlarge'|'m7a.48xlarge'|'m7i.24xlarge'|'m7i.48xlarge'|'r7a.24xlarge'|'r7a.32xlarge'|'r7a.48xlarge',
            'InstanceCounts': {
                'DESIRED': 123,
                'MINIMUM': 123,
                'MAXIMUM': 123,
                'PENDING': 123,
                'ACTIVE': 123,
                'IDLE': 123,
                'TERMINATING': 123
            },
            'Location': 'string',
            'GameServerContainerGroupCounts': {
                'PENDING': 123,
                'ACTIVE': 123,
                'IDLE': 123,
                'TERMINATING': 123
            },
            'ManagedCapacityConfiguration': {
                'ZeroCapacityStrategy': 'MANUAL'|'SCALE_TO_AND_FROM_ZERO',
                'ScaleInAfterInactivityMinutes': 123
            }
        },
    ],
    'NextToken': 'string'
}

Response Structure

(dict) --
- FleetCapacity (list) --
  
  A collection of objects that contains capacity information for each requested fleet ID. Capacity objects are returned only for fleets that currently exist. Changes in desired instance value can take up to 1 minute to be reflected.
  - (dict) --
    
    Current resource capacity settings for managed EC2 fleets and managed container fleets. For multi-location fleets, location values might refer to a fleet's remote location or its home Region.
    
    Returned by: DescribeFleetCapacity, DescribeFleetLocationCapacity, UpdateFleetCapacity
    - FleetId (string) --
      
      A unique identifier for the fleet associated with the location.
    - FleetArn (string) --
      
      The Amazon Resource Name ( ARN) that is assigned to a Amazon GameLift Servers fleet resource and uniquely identifies it. ARNs are unique across all Regions. Format is arn:aws:gamelift:<region>::fleet/fleet-a1234567-b8c9-0d1e-2fa3-b45c6d7e8912.
    - InstanceType (string) --
      
      The Amazon EC2 instance type that is used for instances in a fleet. Instance type determines the computing resources in use, including CPU, memory, storage, and networking capacity. See Amazon Elastic Compute Cloud Instance Types for detailed descriptions.
    - InstanceCounts (dict) --
      
      The current number of instances in the fleet, listed by instance status. Counts for pending and terminating instances might be non-zero if the fleet is adjusting to a scaling event or if access to resources is temporarily affected.
      - DESIRED (integer) --
        
        Requested number of active instances. Amazon GameLift Servers takes action as needed to maintain the desired number of instances. Capacity is scaled up or down by changing the desired instances. A change in the desired instances value can take up to 1 minute to be reflected when viewing a fleet's capacity settings.
      - MINIMUM (integer) --
        
        The minimum instance count value allowed.
      - MAXIMUM (integer) --
        
        The maximum instance count value allowed.
      - PENDING (integer) --
        
        Number of instances that are starting but not yet active.
      - ACTIVE (integer) --
        
        Actual number of instances that are ready to host game sessions.
      - IDLE (integer) --
        
        Number of active instances that are not currently hosting a game session.
      - TERMINATING (integer) --
        
        Number of instances that are no longer active but haven't yet been terminated.
    - Location (string) --
      
      The fleet location for the instance count information, expressed as an Amazon Web Services Region code, such as us-west-2.
    - GameServerContainerGroupCounts (dict) --
      
      The number and status of game server container groups deployed in a container fleet.
      - PENDING (integer) --
        
        The number of container groups that are starting up but haven't yet registered.
      - ACTIVE (integer) --
        
        The number of container groups that have active game sessions.
      - IDLE (integer) --
        
        The number of container groups that have no active game sessions.
      - TERMINATING (integer) --
        
        The number of container groups that are in the process of shutting down.
    - ManagedCapacityConfiguration (dict) --
      
      Configuration settings for managed capacity scaling.
      - ZeroCapacityStrategy (string) --
        
        The strategy Amazon GameLift Servers will use to automatically scale your capacity to and from zero instances in response to game session activity. Game session activity refers to any active running sessions or game session requests.
        
        Possible ZeroCapacityStrategy types include:
        
        MANUAL -- (default value) Amazon GameLift Servers will not update capacity to and from zero on your behalf.
        
        SCALE_TO_AND_FROM_ZERO -- Amazon GameLift Servers will automatically scale out MinSize and DesiredInstances from 0 to 1 in response to a game session request, and will scale in MinSize and DesiredInstances to 0 after a period with no game session activity. The duration of this scale in period can be configured using ScaleInAfterInactivityMinutes.
      - ScaleInAfterInactivityMinutes (integer) --
        
        Length of time, in minutes, that Amazon GameLift Servers will wait before scaling in your MinSize and DesiredInstances to 0 after a period with no game session activity. Default: 30 minutes.
- NextToken (string) --
  
  A token that indicates where to resume retrieving results on the next call to this operation. If no token is returned, these results represent the end of the list.

DescribeFleetLocationCapacity (updated)

Link ¶
Changes (response)

{'FleetCapacity': {'ManagedCapacityConfiguration': {'ScaleInAfterInactivityMinutes': 'integer',
                                                    'ZeroCapacityStrategy': 'MANUAL '
                                                                            '| '
                                                                            'SCALE_TO_AND_FROM_ZERO'}}}

This API works with the following fleet types: EC2, Container

Retrieves the resource capacity settings for a fleet location. The data returned includes the current capacity (number of EC2 instances) and some scaling settings for the requested fleet location. For a managed container fleet, this operation also returns counts for game server container groups.

Use this operation to retrieve capacity information for a fleet's remote location or home Region (you can also retrieve home Region capacity by calling DescribeFleetCapacity).

To retrieve capacity data, identify a fleet and location.

If successful, a FleetCapacity object is returned for the requested fleet location.

Learn more

Setting up Amazon GameLift Servers fleets

Amazon GameLift Servers service locations for managed hosting

GameLift metrics for fleets

See also: AWS API Documentation

Request Syntax

client.describe_fleet_location_capacity(
    FleetId='string',
    Location='string'
)

type FleetId:

string

param FleetId:

[REQUIRED]

A unique identifier for the fleet to request location capacity for. You can use either the fleet ID or ARN value.

type Location:

string

param Location:

[REQUIRED]

The fleet location to retrieve capacity information for. Specify a location in the form of an Amazon Web Services Region code, such as us-west-2.

rtype:

dict

returns:

Response Syntax

{
    'FleetCapacity': {
        'FleetId': 'string',
        'FleetArn': 'string',
        'InstanceType': 't2.micro'|'t2.small'|'t2.medium'|'t2.large'|'c3.large'|'c3.xlarge'|'c3.2xlarge'|'c3.4xlarge'|'c3.8xlarge'|'c4.large'|'c4.xlarge'|'c4.2xlarge'|'c4.4xlarge'|'c4.8xlarge'|'c5.large'|'c5.xlarge'|'c5.2xlarge'|'c5.4xlarge'|'c5.9xlarge'|'c5.12xlarge'|'c5.18xlarge'|'c5.24xlarge'|'c5a.large'|'c5a.xlarge'|'c5a.2xlarge'|'c5a.4xlarge'|'c5a.8xlarge'|'c5a.12xlarge'|'c5a.16xlarge'|'c5a.24xlarge'|'r3.large'|'r3.xlarge'|'r3.2xlarge'|'r3.4xlarge'|'r3.8xlarge'|'r4.large'|'r4.xlarge'|'r4.2xlarge'|'r4.4xlarge'|'r4.8xlarge'|'r4.16xlarge'|'r5.large'|'r5.xlarge'|'r5.2xlarge'|'r5.4xlarge'|'r5.8xlarge'|'r5.12xlarge'|'r5.16xlarge'|'r5.24xlarge'|'r5a.large'|'r5a.xlarge'|'r5a.2xlarge'|'r5a.4xlarge'|'r5a.8xlarge'|'r5a.12xlarge'|'r5a.16xlarge'|'r5a.24xlarge'|'m3.medium'|'m3.large'|'m3.xlarge'|'m3.2xlarge'|'m4.large'|'m4.xlarge'|'m4.2xlarge'|'m4.4xlarge'|'m4.10xlarge'|'m5.large'|'m5.xlarge'|'m5.2xlarge'|'m5.4xlarge'|'m5.8xlarge'|'m5.12xlarge'|'m5.16xlarge'|'m5.24xlarge'|'m5a.large'|'m5a.xlarge'|'m5a.2xlarge'|'m5a.4xlarge'|'m5a.8xlarge'|'m5a.12xlarge'|'m5a.16xlarge'|'m5a.24xlarge'|'c5d.large'|'c5d.xlarge'|'c5d.2xlarge'|'c5d.4xlarge'|'c5d.9xlarge'|'c5d.12xlarge'|'c5d.18xlarge'|'c5d.24xlarge'|'c6a.large'|'c6a.xlarge'|'c6a.2xlarge'|'c6a.4xlarge'|'c6a.8xlarge'|'c6a.12xlarge'|'c6a.16xlarge'|'c6a.24xlarge'|'c6i.large'|'c6i.xlarge'|'c6i.2xlarge'|'c6i.4xlarge'|'c6i.8xlarge'|'c6i.12xlarge'|'c6i.16xlarge'|'c6i.24xlarge'|'r5d.large'|'r5d.xlarge'|'r5d.2xlarge'|'r5d.4xlarge'|'r5d.8xlarge'|'r5d.12xlarge'|'r5d.16xlarge'|'r5d.24xlarge'|'m6g.medium'|'m6g.large'|'m6g.xlarge'|'m6g.2xlarge'|'m6g.4xlarge'|'m6g.8xlarge'|'m6g.12xlarge'|'m6g.16xlarge'|'c6g.medium'|'c6g.large'|'c6g.xlarge'|'c6g.2xlarge'|'c6g.4xlarge'|'c6g.8xlarge'|'c6g.12xlarge'|'c6g.16xlarge'|'r6g.medium'|'r6g.large'|'r6g.xlarge'|'r6g.2xlarge'|'r6g.4xlarge'|'r6g.8xlarge'|'r6g.12xlarge'|'r6g.16xlarge'|'c6gn.medium'|'c6gn.large'|'c6gn.xlarge'|'c6gn.2xlarge'|'c6gn.4xlarge'|'c6gn.8xlarge'|'c6gn.12xlarge'|'c6gn.16xlarge'|'c7g.medium'|'c7g.large'|'c7g.xlarge'|'c7g.2xlarge'|'c7g.4xlarge'|'c7g.8xlarge'|'c7g.12xlarge'|'c7g.16xlarge'|'r7g.medium'|'r7g.large'|'r7g.xlarge'|'r7g.2xlarge'|'r7g.4xlarge'|'r7g.8xlarge'|'r7g.12xlarge'|'r7g.16xlarge'|'m7g.medium'|'m7g.large'|'m7g.xlarge'|'m7g.2xlarge'|'m7g.4xlarge'|'m7g.8xlarge'|'m7g.12xlarge'|'m7g.16xlarge'|'g5g.xlarge'|'g5g.2xlarge'|'g5g.4xlarge'|'g5g.8xlarge'|'g5g.16xlarge'|'r6i.large'|'r6i.xlarge'|'r6i.2xlarge'|'r6i.4xlarge'|'r6i.8xlarge'|'r6i.12xlarge'|'r6i.16xlarge'|'c6gd.medium'|'c6gd.large'|'c6gd.xlarge'|'c6gd.2xlarge'|'c6gd.4xlarge'|'c6gd.8xlarge'|'c6gd.12xlarge'|'c6gd.16xlarge'|'c6in.large'|'c6in.xlarge'|'c6in.2xlarge'|'c6in.4xlarge'|'c6in.8xlarge'|'c6in.12xlarge'|'c6in.16xlarge'|'c7a.medium'|'c7a.large'|'c7a.xlarge'|'c7a.2xlarge'|'c7a.4xlarge'|'c7a.8xlarge'|'c7a.12xlarge'|'c7a.16xlarge'|'c7gd.medium'|'c7gd.large'|'c7gd.xlarge'|'c7gd.2xlarge'|'c7gd.4xlarge'|'c7gd.8xlarge'|'c7gd.12xlarge'|'c7gd.16xlarge'|'c7gn.medium'|'c7gn.large'|'c7gn.xlarge'|'c7gn.2xlarge'|'c7gn.4xlarge'|'c7gn.8xlarge'|'c7gn.12xlarge'|'c7gn.16xlarge'|'c7i.large'|'c7i.xlarge'|'c7i.2xlarge'|'c7i.4xlarge'|'c7i.8xlarge'|'c7i.12xlarge'|'c7i.16xlarge'|'m6a.large'|'m6a.xlarge'|'m6a.2xlarge'|'m6a.4xlarge'|'m6a.8xlarge'|'m6a.12xlarge'|'m6a.16xlarge'|'m6gd.medium'|'m6gd.large'|'m6gd.xlarge'|'m6gd.2xlarge'|'m6gd.4xlarge'|'m6gd.8xlarge'|'m6gd.12xlarge'|'m6gd.16xlarge'|'m6i.large'|'m6i.xlarge'|'m6i.2xlarge'|'m6i.4xlarge'|'m6i.8xlarge'|'m6i.12xlarge'|'m6i.16xlarge'|'m7a.medium'|'m7a.large'|'m7a.xlarge'|'m7a.2xlarge'|'m7a.4xlarge'|'m7a.8xlarge'|'m7a.12xlarge'|'m7a.16xlarge'|'m7gd.medium'|'m7gd.large'|'m7gd.xlarge'|'m7gd.2xlarge'|'m7gd.4xlarge'|'m7gd.8xlarge'|'m7gd.12xlarge'|'m7gd.16xlarge'|'m7i.large'|'m7i.xlarge'|'m7i.2xlarge'|'m7i.4xlarge'|'m7i.8xlarge'|'m7i.12xlarge'|'m7i.16xlarge'|'r6gd.medium'|'r6gd.large'|'r6gd.xlarge'|'r6gd.2xlarge'|'r6gd.4xlarge'|'r6gd.8xlarge'|'r6gd.12xlarge'|'r6gd.16xlarge'|'r7a.medium'|'r7a.large'|'r7a.xlarge'|'r7a.2xlarge'|'r7a.4xlarge'|'r7a.8xlarge'|'r7a.12xlarge'|'r7a.16xlarge'|'r7gd.medium'|'r7gd.large'|'r7gd.xlarge'|'r7gd.2xlarge'|'r7gd.4xlarge'|'r7gd.8xlarge'|'r7gd.12xlarge'|'r7gd.16xlarge'|'r7i.large'|'r7i.xlarge'|'r7i.2xlarge'|'r7i.4xlarge'|'r7i.8xlarge'|'r7i.12xlarge'|'r7i.16xlarge'|'r7i.24xlarge'|'r7i.48xlarge'|'c5ad.large'|'c5ad.xlarge'|'c5ad.2xlarge'|'c5ad.4xlarge'|'c5ad.8xlarge'|'c5ad.12xlarge'|'c5ad.16xlarge'|'c5ad.24xlarge'|'c5n.large'|'c5n.xlarge'|'c5n.2xlarge'|'c5n.4xlarge'|'c5n.9xlarge'|'c5n.18xlarge'|'r5ad.large'|'r5ad.xlarge'|'r5ad.2xlarge'|'r5ad.4xlarge'|'r5ad.8xlarge'|'r5ad.12xlarge'|'r5ad.16xlarge'|'r5ad.24xlarge'|'c6id.large'|'c6id.xlarge'|'c6id.2xlarge'|'c6id.4xlarge'|'c6id.8xlarge'|'c6id.12xlarge'|'c6id.16xlarge'|'c6id.24xlarge'|'c6id.32xlarge'|'c8g.medium'|'c8g.large'|'c8g.xlarge'|'c8g.2xlarge'|'c8g.4xlarge'|'c8g.8xlarge'|'c8g.12xlarge'|'c8g.16xlarge'|'c8g.24xlarge'|'c8g.48xlarge'|'m5ad.large'|'m5ad.xlarge'|'m5ad.2xlarge'|'m5ad.4xlarge'|'m5ad.8xlarge'|'m5ad.12xlarge'|'m5ad.16xlarge'|'m5ad.24xlarge'|'m5d.large'|'m5d.xlarge'|'m5d.2xlarge'|'m5d.4xlarge'|'m5d.8xlarge'|'m5d.12xlarge'|'m5d.16xlarge'|'m5d.24xlarge'|'m5dn.large'|'m5dn.xlarge'|'m5dn.2xlarge'|'m5dn.4xlarge'|'m5dn.8xlarge'|'m5dn.12xlarge'|'m5dn.16xlarge'|'m5dn.24xlarge'|'m5n.large'|'m5n.xlarge'|'m5n.2xlarge'|'m5n.4xlarge'|'m5n.8xlarge'|'m5n.12xlarge'|'m5n.16xlarge'|'m5n.24xlarge'|'m6id.large'|'m6id.xlarge'|'m6id.2xlarge'|'m6id.4xlarge'|'m6id.8xlarge'|'m6id.12xlarge'|'m6id.16xlarge'|'m6id.24xlarge'|'m6id.32xlarge'|'m6idn.large'|'m6idn.xlarge'|'m6idn.2xlarge'|'m6idn.4xlarge'|'m6idn.8xlarge'|'m6idn.12xlarge'|'m6idn.16xlarge'|'m6idn.24xlarge'|'m6idn.32xlarge'|'m6in.large'|'m6in.xlarge'|'m6in.2xlarge'|'m6in.4xlarge'|'m6in.8xlarge'|'m6in.12xlarge'|'m6in.16xlarge'|'m6in.24xlarge'|'m6in.32xlarge'|'m8g.medium'|'m8g.large'|'m8g.xlarge'|'m8g.2xlarge'|'m8g.4xlarge'|'m8g.8xlarge'|'m8g.12xlarge'|'m8g.16xlarge'|'m8g.24xlarge'|'m8g.48xlarge'|'r5dn.large'|'r5dn.xlarge'|'r5dn.2xlarge'|'r5dn.4xlarge'|'r5dn.8xlarge'|'r5dn.12xlarge'|'r5dn.16xlarge'|'r5dn.24xlarge'|'r5n.large'|'r5n.xlarge'|'r5n.2xlarge'|'r5n.4xlarge'|'r5n.8xlarge'|'r5n.12xlarge'|'r5n.16xlarge'|'r5n.24xlarge'|'r6a.large'|'r6a.xlarge'|'r6a.2xlarge'|'r6a.4xlarge'|'r6a.8xlarge'|'r6a.12xlarge'|'r6a.16xlarge'|'r6a.24xlarge'|'r6a.32xlarge'|'r6a.48xlarge'|'r6id.large'|'r6id.xlarge'|'r6id.2xlarge'|'r6id.4xlarge'|'r6id.8xlarge'|'r6id.12xlarge'|'r6id.16xlarge'|'r6id.24xlarge'|'r6id.32xlarge'|'r6idn.large'|'r6idn.xlarge'|'r6idn.2xlarge'|'r6idn.4xlarge'|'r6idn.8xlarge'|'r6idn.12xlarge'|'r6idn.16xlarge'|'r6idn.24xlarge'|'r6idn.32xlarge'|'r6in.large'|'r6in.xlarge'|'r6in.2xlarge'|'r6in.4xlarge'|'r6in.8xlarge'|'r6in.12xlarge'|'r6in.16xlarge'|'r6in.24xlarge'|'r6in.32xlarge'|'r8g.medium'|'r8g.large'|'r8g.xlarge'|'r8g.2xlarge'|'r8g.4xlarge'|'r8g.8xlarge'|'r8g.12xlarge'|'r8g.16xlarge'|'r8g.24xlarge'|'r8g.48xlarge'|'m4.16xlarge'|'c6a.32xlarge'|'c6a.48xlarge'|'c6i.32xlarge'|'r6i.24xlarge'|'r6i.32xlarge'|'c6in.24xlarge'|'c6in.32xlarge'|'c7a.24xlarge'|'c7a.32xlarge'|'c7a.48xlarge'|'c7i.24xlarge'|'c7i.48xlarge'|'m6a.24xlarge'|'m6a.32xlarge'|'m6a.48xlarge'|'m6i.24xlarge'|'m6i.32xlarge'|'m7a.24xlarge'|'m7a.32xlarge'|'m7a.48xlarge'|'m7i.24xlarge'|'m7i.48xlarge'|'r7a.24xlarge'|'r7a.32xlarge'|'r7a.48xlarge',
        'InstanceCounts': {
            'DESIRED': 123,
            'MINIMUM': 123,
            'MAXIMUM': 123,
            'PENDING': 123,
            'ACTIVE': 123,
            'IDLE': 123,
            'TERMINATING': 123
        },
        'Location': 'string',
        'GameServerContainerGroupCounts': {
            'PENDING': 123,
            'ACTIVE': 123,
            'IDLE': 123,
            'TERMINATING': 123
        },
        'ManagedCapacityConfiguration': {
            'ZeroCapacityStrategy': 'MANUAL'|'SCALE_TO_AND_FROM_ZERO',
            'ScaleInAfterInactivityMinutes': 123
        }
    }
}

Response Structure

(dict) --
- FleetCapacity (dict) --
  
  Resource capacity information for the requested fleet location. Capacity objects are returned only for fleets and locations that currently exist. Changes in desired instance value can take up to 1 minute to be reflected.
  - FleetId (string) --
    
    A unique identifier for the fleet associated with the location.
  - FleetArn (string) --
    
    The Amazon Resource Name ( ARN) that is assigned to a Amazon GameLift Servers fleet resource and uniquely identifies it. ARNs are unique across all Regions. Format is arn:aws:gamelift:<region>::fleet/fleet-a1234567-b8c9-0d1e-2fa3-b45c6d7e8912.
  - InstanceType (string) --
    
    The Amazon EC2 instance type that is used for instances in a fleet. Instance type determines the computing resources in use, including CPU, memory, storage, and networking capacity. See Amazon Elastic Compute Cloud Instance Types for detailed descriptions.
  - InstanceCounts (dict) --
    
    The current number of instances in the fleet, listed by instance status. Counts for pending and terminating instances might be non-zero if the fleet is adjusting to a scaling event or if access to resources is temporarily affected.
    - DESIRED (integer) --
      
      Requested number of active instances. Amazon GameLift Servers takes action as needed to maintain the desired number of instances. Capacity is scaled up or down by changing the desired instances. A change in the desired instances value can take up to 1 minute to be reflected when viewing a fleet's capacity settings.
    - MINIMUM (integer) --
      
      The minimum instance count value allowed.
    - MAXIMUM (integer) --
      
      The maximum instance count value allowed.
    - PENDING (integer) --
      
      Number of instances that are starting but not yet active.
    - ACTIVE (integer) --
      
      Actual number of instances that are ready to host game sessions.
    - IDLE (integer) --
      
      Number of active instances that are not currently hosting a game session.
    - TERMINATING (integer) --
      
      Number of instances that are no longer active but haven't yet been terminated.
  - Location (string) --
    
    The fleet location for the instance count information, expressed as an Amazon Web Services Region code, such as us-west-2.
  - GameServerContainerGroupCounts (dict) --
    
    The number and status of game server container groups deployed in a container fleet.
    - PENDING (integer) --
      
      The number of container groups that are starting up but haven't yet registered.
    - ACTIVE (integer) --
      
      The number of container groups that have active game sessions.
    - IDLE (integer) --
      
      The number of container groups that have no active game sessions.
    - TERMINATING (integer) --
      
      The number of container groups that are in the process of shutting down.
  - ManagedCapacityConfiguration (dict) --
    
    Configuration settings for managed capacity scaling.
    - ZeroCapacityStrategy (string) --
      
      The strategy Amazon GameLift Servers will use to automatically scale your capacity to and from zero instances in response to game session activity. Game session activity refers to any active running sessions or game session requests.
      
      Possible ZeroCapacityStrategy types include:
      - MANUAL -- (default value) Amazon GameLift Servers will not update capacity to and from zero on your behalf.
      - SCALE_TO_AND_FROM_ZERO -- Amazon GameLift Servers will automatically scale out MinSize and DesiredInstances from 0 to 1 in response to a game session request, and will scale in MinSize and DesiredInstances to 0 after a period with no game session activity. The duration of this scale in period can be configured using ScaleInAfterInactivityMinutes.
    - ScaleInAfterInactivityMinutes (integer) --
      
      Length of time, in minutes, that Amazon GameLift Servers will wait before scaling in your MinSize and DesiredInstances to 0 after a period with no game session activity. Default: 30 minutes.

UpdateFleetCapacity (updated)

Link ¶
Changes (both)

{'ManagedCapacityConfiguration': {'ScaleInAfterInactivityMinutes': 'integer',
                                  'ZeroCapacityStrategy': 'MANUAL | '
                                                          'SCALE_TO_AND_FROM_ZERO'}}

This API works with the following fleet types: EC2, Container

Updates capacity settings for a managed EC2 fleet or managed container fleet. For these fleets, you adjust capacity by changing the number of instances in the fleet. Fleet capacity determines the number of game sessions and players that the fleet can host based on its configuration. For fleets with multiple locations, use this operation to manage capacity settings in each location individually.

Minimum/maximum size: Set hard limits on the number of Amazon EC2 instances allowed. If Amazon GameLift Servers receives a request--either through manual update or automatic scaling--it won't change the capacity to a value outside of this range.
Desired capacity: As an alternative to automatic scaling, manually set the number of Amazon EC2 instances to be maintained. Before changing a fleet's desired capacity, check the maximum capacity of the fleet's Amazon EC2 instance type by calling DescribeEC2InstanceLimits.

To update capacity for a fleet's home Region, or if the fleet has no remote locations, omit the Location parameter. The fleet must be in ACTIVE status.

To update capacity for a fleet's remote location, set the Location parameter to the location to update. The location must be in ACTIVE status.

If successful, Amazon GameLift Servers updates the capacity settings and returns the identifiers for the updated fleet and/or location. If a requested change to desired capacity exceeds the instance type's limit, the LimitExceeded exception occurs.

Updates often prompt an immediate change in fleet capacity, such as when current capacity is different than the new desired capacity or outside the new limits. In this scenario, Amazon GameLift Servers automatically initiates steps to add or remove instances in the fleet location. You can track a fleet's current capacity by calling DescribeFleetCapacity or DescribeFleetLocationCapacity.

Use ManagedCapacityConfiguration with the "SCALE_TO_AND_FROM_ZERO" ZeroCapacityStrategy to enable Amazon GameLift Servers to fully manage the MinSize value, switching between 0 and 1 based on game session activity. This is ideal for eliminating compute costs during periods of no game activity. It is particularly beneficial during development when you're away from your desk, iterating on builds for extended periods, in production environments serving low-traffic locations, or for games with long, predictable downtime windows. By automatically managing capacity between 0 and 1 instances, you avoid paying for idle instances while maintaining the ability to serve game sessions when demand arrives. Note that while scale-out is triggered immediately upon receiving a game session request, actual game session availability depends on your server process startup time, so this approach works best with multi-location Fleets where cold-start latency is tolerable. With a "MANUAL" ZeroCapacityStrategy Amazon GameLift Servers will not modify Fleet MinSize values automatically and will not scale out from zero instances in response to game sessions. This is configurable per-location.

Learn more

Scaling fleet capacity