[ aws . ec2 ]

request-spot-fleet

Description

Creates a Spot Fleet request.

The Spot Fleet request specifies the total target capacity and the On-Demand target capacity. Amazon EC2 calculates the difference between the total capacity and On-Demand capacity, and launches the difference as Spot capacity.

You can submit a single request that includes multiple launch specifications that vary by instance type, AMI, Availability Zone, or subnet.

By default, the Spot Fleet requests Spot Instances in the Spot Instance pool where the price per unit is the lowest. Each launch specification can include its own instance weighting that reflects the value of the instance type to your application workload.

Alternatively, you can specify that the Spot Fleet distribute the target capacity across the Spot pools included in its launch specifications. By ensuring that the Spot Instances in your Spot Fleet are in different Spot pools, you can improve the availability of your fleet.

You can specify tags for the Spot Fleet request and instances launched by the fleet. You cannot tag other resource types in a Spot Fleet request because only the spot-fleet-request and instance resource types are supported.

For more information, see Spot Fleet requests in the Amazon EC2 User Guide .

Warning

We strongly discourage using the RequestSpotFleet API because it is a legacy API with no planned investment. For options for requesting Spot Instances, see Which is the best Spot request method to use? in the Amazon EC2 User Guide .

See also: AWS API Documentation

Synopsis

  request-spot-fleet
[--dry-run | --no-dry-run]
--spot-fleet-request-config <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--spot-fleet-request-config (structure)

The configuration for the Spot Fleet request.

AllocationStrategy -> (string)

The strategy that determines how to allocate the target Spot Instance capacity across the Spot Instance pools specified by the Spot Fleet launch configuration. For more information, see Allocation strategies for Spot Instances in the Amazon EC2 User Guide .

priceCapacityOptimized (recommended)

Spot Fleet identifies the pools with the highest capacity availability for the number of instances that are launching. This means that we will request Spot Instances from the pools that we believe have the lowest chance of interruption in the near term. Spot Fleet then requests Spot Instances from the lowest priced of these pools.

capacityOptimized

Spot Fleet identifies the pools with the highest capacity availability for the number of instances that are launching. This means that we will request Spot Instances from the pools that we believe have the lowest chance of interruption in the near term. To give certain instance types a higher chance of launching first, use capacityOptimizedPrioritized . Set a priority for each instance type by using the Priority parameter for LaunchTemplateOverrides . You can assign the same priority to different LaunchTemplateOverrides . EC2 implements the priorities on a best-effort basis, but optimizes for capacity first. capacityOptimizedPrioritized is supported only if your Spot Fleet uses a launch template. Note that if the OnDemandAllocationStrategy is set to prioritized , the same priority is applied when fulfilling On-Demand capacity.

diversified

Spot Fleet requests instances from all of the Spot Instance pools that you specify.

lowestPrice (not recommended)

Warning

We don’t recommend the lowestPrice allocation strategy because it has the highest risk of interruption for your Spot Instances.

Spot Fleet requests instances from the lowest priced Spot Instance pool that has available capacity. If the lowest priced pool doesn’t have available capacity, the Spot Instances come from the next lowest priced pool that has available capacity. If a pool runs out of capacity before fulfilling your desired capacity, Spot Fleet will continue to fulfill your request by drawing from the next lowest priced pool. To ensure that your desired capacity is met, you might receive Spot Instances from several pools. Because this strategy only considers instance price and not capacity availability, it might lead to high interruption rates.

Default: lowestPrice

OnDemandAllocationStrategy -> (string)

The order of the launch template overrides to use in fulfilling On-Demand capacity. If you specify lowestPrice , Spot Fleet uses price to determine the order, launching the lowest price first. If you specify prioritized , Spot Fleet uses the priority that you assign to each Spot Fleet launch template override, launching the highest priority first. If you do not specify a value, Spot Fleet defaults to lowestPrice .

SpotMaintenanceStrategies -> (structure)

The strategies for managing your Spot Instances that are at an elevated risk of being interrupted.

CapacityRebalance -> (structure)

The Spot Instance replacement strategy to use when Amazon EC2 emits a signal that your Spot Instance is at an elevated risk of being interrupted. For more information, see Capacity rebalancing in the Amazon EC2 User Guide .

ReplacementStrategy -> (string)

The replacement strategy to use. Only available for fleets of type maintain .

launch - Spot Fleet launches a new replacement Spot Instance when a rebalance notification is emitted for an existing Spot Instance in the fleet. Spot Fleet does not terminate the instances that receive a rebalance notification. You can terminate the old instances, or you can leave them running. You are charged for all instances while they are running.

launch-before-terminate - Spot Fleet launches a new replacement Spot Instance when a rebalance notification is emitted for an existing Spot Instance in the fleet, and then, after a delay that you specify (in TerminationDelay ), terminates the instances that received a rebalance notification.

TerminationDelay -> (integer)

The amount of time (in seconds) that Amazon EC2 waits before terminating the old Spot Instance after launching a new replacement Spot Instance.

Required when ReplacementStrategy is set to launch-before-terminate .

Not valid when ReplacementStrategy is set to launch .

Valid values: Minimum value of 120 seconds. Maximum value of 7200 seconds.

ClientToken -> (string)

A unique, case-sensitive identifier that you provide to ensure the idempotency of your listings. This helps to avoid duplicate listings. For more information, see Ensuring Idempotency .

ExcessCapacityTerminationPolicy -> (string)

Indicates whether running instances should be terminated if you decrease the target capacity of the Spot Fleet request below the current size of the Spot Fleet.

Supported only for fleets of type maintain .

FulfilledCapacity -> (double)

The number of units fulfilled by this request compared to the set target capacity. You cannot set this value.

OnDemandFulfilledCapacity -> (double)

The number of On-Demand units fulfilled by this request compared to the set target On-Demand capacity.

IamFleetRole -> (string)

The Amazon Resource Name (ARN) of an Identity and Access Management (IAM) role that grants the Spot Fleet the permission to request, launch, terminate, and tag instances on your behalf. For more information, see Spot Fleet prerequisites in the Amazon EC2 User Guide . Spot Fleet can terminate Spot Instances on your behalf when you cancel its Spot Fleet request using CancelSpotFleetRequests or when the Spot Fleet request expires, if you set TerminateInstancesWithExpiration .

LaunchSpecifications -> (list)

The launch specifications for the Spot Fleet request. If you specify LaunchSpecifications , you can’t specify LaunchTemplateConfigs . If you include On-Demand capacity in your request, you must use LaunchTemplateConfigs .

Note

If an AMI specified in a launch specification is deregistered or disabled, no new instances can be launched from the AMI. For fleets of type maintain , the target capacity will not be maintained.

(structure)

Describes the launch specification for one or more Spot Instances. If you include On-Demand capacity in your fleet request or want to specify an EFA network device, you can’t use SpotFleetLaunchSpecification ; you must use LaunchTemplateConfig .

AddressingType -> (string)

Deprecated.

BlockDeviceMappings -> (list)

One or more block devices that are mapped to the Spot Instances. You can’t specify both a snapshot ID and an encryption value. This is because only blank volumes can be encrypted on creation. If a snapshot is the basis for a volume, it is not blank and its encryption status is used for the volume encryption status.

(structure)

Describes a block device mapping, which defines the EBS volumes and instance store volumes to attach to an instance at launch.

Ebs -> (structure)

Parameters used to automatically set up EBS volumes when the instance is launched.

DeleteOnTermination -> (boolean)

Indicates whether the EBS volume is deleted on instance termination. For more information, see Preserving Amazon EBS volumes on instance termination in the Amazon EC2 User Guide .

Iops -> (integer)

The number of I/O operations per second (IOPS). For gp3 , io1 , and io2 volumes, this represents the number of IOPS that are provisioned for the volume. For gp2 volumes, this represents the baseline performance of the volume and the rate at which the volume accumulates I/O credits for bursting.

The following are the supported values for each volume type:

• gp3 : 3,000 - 16,000 IOPS
• io1 : 100 - 64,000 IOPS
• io2 : 100 - 256,000 IOPS

For io2 volumes, you can achieve up to 256,000 IOPS on instances built on the Nitro System . On other instances, you can achieve performance up to 32,000 IOPS.

This parameter is required for io1 and io2 volumes. The default for gp3 volumes is 3,000 IOPS.

SnapshotId -> (string)

The ID of the snapshot.

VolumeSize -> (integer)

The size of the volume, in GiBs. You must specify either a snapshot ID or a volume size. If you specify a snapshot, the default is the snapshot size. You can specify a volume size that is equal to or larger than the snapshot size.

The following are the supported sizes for each volume type:

• gp2 and gp3 : 1 - 16,384 GiB
• io1 : 4 - 16,384 GiB
• io2 : 4 - 65,536 GiB
• st1 and sc1 : 125 - 16,384 GiB
• standard : 1 - 1024 GiB

VolumeType -> (string)

The volume type. For more information, see Amazon EBS volume types in the Amazon EBS User Guide .

KmsKeyId -> (string)

Identifier (key ID, key alias, key ARN, or alias ARN) of the customer managed KMS key to use for EBS encryption.

This parameter is only supported on BlockDeviceMapping objects called by RunInstances , RequestSpotFleet , and RequestSpotInstances .

Throughput -> (integer)

The throughput that the volume supports, in MiB/s.

This parameter is valid only for gp3 volumes.

Valid Range: Minimum value of 125. Maximum value of 1000.

OutpostArn -> (string)

The ARN of the Outpost on which the snapshot is stored.

This parameter is not supported when using CreateImage .

Encrypted -> (boolean)

Indicates whether the encryption state of an EBS volume is changed while being restored from a backing snapshot. The effect of setting the encryption state to true depends on the volume origin (new or from a snapshot), starting encryption state, ownership, and whether encryption by default is enabled. For more information, see Amazon EBS encryption in the Amazon EBS User Guide .

In no case can you remove encryption from an encrypted volume.

Encrypted volumes can only be attached to instances that support Amazon EBS encryption. For more information, see Supported instance types .

This parameter is not returned by DescribeImageAttribute .

For CreateImage and RegisterImage , whether you can include this parameter, and the allowed values differ depending on the type of block device mapping you are creating.

• If you are creating a block device mapping for a new (empty) volume , you can include this parameter, and specify either true for an encrypted volume, or false for an unencrypted volume. If you omit this parameter, it defaults to false (unencrypted).
• If you are creating a block device mapping from an existing encrypted or unencrypted snapshot , you must omit this parameter. If you include this parameter, the request will fail, regardless of the value that you specify.
• If you are creating a block device mapping from an existing unencrypted volume , you can include this parameter, but you must specify false . If you specify true , the request will fail. In this case, we recommend that you omit the parameter.
• If you are creating a block device mapping from an existing encrypted volume , you can include this parameter, and specify either true or false . However, if you specify false , the parameter is ignored and the block device mapping is always encrypted. In this case, we recommend that you omit the parameter.

NoDevice -> (string)

To omit the device from the block device mapping, specify an empty string. When this property is specified, the device is removed from the block device mapping regardless of the assigned value.

DeviceName -> (string)

The device name (for example, /dev/sdh or xvdh ).

VirtualName -> (string)

The virtual device name (ephemeral N). Instance store volumes are numbered starting from 0. An instance type with 2 available instance store volumes can specify mappings for ephemeral0 and ephemeral1 . The number of available instance store volumes depends on the instance type. After you connect to the instance, you must mount the volume.

NVMe instance store volumes are automatically enumerated and assigned a device name. Including them in your block device mapping has no effect.

Constraints: For M3 instances, you must specify instance store volumes in the block device mapping for the instance. When you launch an M3 instance, we ignore any instance store volumes specified in the block device mapping for the AMI.

EbsOptimized -> (boolean)

Indicates whether the instances are optimized for EBS I/O. This optimization provides dedicated throughput to Amazon EBS and an optimized configuration stack to provide optimal EBS I/O performance. This optimization isn’t available with all instance types. Additional usage charges apply when using an EBS Optimized instance.

Default: false

IamInstanceProfile -> (structure)

The IAM instance profile.

Arn -> (string)

The Amazon Resource Name (ARN) of the instance profile.

Name -> (string)

The name of the instance profile.

ImageId -> (string)

The ID of the AMI.

InstanceType -> (string)

The instance type.

KernelId -> (string)

The ID of the kernel.

KeyName -> (string)

The name of the key pair.

Monitoring -> (structure)

Enable or disable monitoring for the instances.

Enabled -> (boolean)

Enables monitoring for the instance.

Default: false

NetworkInterfaces -> (list)

The network interfaces.

Note

SpotFleetLaunchSpecification does not support Elastic Fabric Adapter (EFA). You must use LaunchTemplateConfig instead.

(structure)

Describes a network interface.

AssociatePublicIpAddress -> (boolean)

Indicates whether to assign a public IPv4 address to an instance you launch in a VPC. The public IP address can only be assigned to a network interface for eth0, and can only be assigned to a new network interface, not an existing one. You cannot specify more than one network interface in the request. If launching into a default subnet, the default value is true .

Amazon Web Services charges for all public IPv4 addresses, including public IPv4 addresses associated with running instances and Elastic IP addresses. For more information, see the Public IPv4 Address tab on the Amazon VPC pricing page .

DeleteOnTermination -> (boolean)

If set to true , the interface is deleted when the instance is terminated. You can specify true only if creating a new network interface when launching an instance.

Description -> (string)

The description of the network interface. Applies only if creating a network interface when launching an instance.

DeviceIndex -> (integer)

The position of the network interface in the attachment order. A primary network interface has a device index of 0.

If you specify a network interface when launching an instance, you must specify the device index.

Groups -> (list)

The IDs of the security groups for the network interface. Applies only if creating a network interface when launching an instance.

(string)

Ipv6AddressCount -> (integer)

A number of IPv6 addresses to assign to the network interface. Amazon EC2 chooses the IPv6 addresses from the range of the subnet. You cannot specify this option and the option to assign specific IPv6 addresses in the same request. You can specify this option if you’ve specified a minimum number of instances to launch.

Ipv6Addresses -> (list)

The IPv6 addresses to assign to the network interface. You cannot specify this option and the option to assign a number of IPv6 addresses in the same request. You cannot specify this option if you’ve specified a minimum number of instances to launch.

(structure)

Describes an IPv6 address.

Ipv6Address -> (string)

The IPv6 address.

IsPrimaryIpv6 -> (boolean)

Determines if an IPv6 address associated with a network interface is the primary IPv6 address. When you enable an IPv6 GUA address to be a primary IPv6, the first IPv6 GUA will be made the primary IPv6 address until the instance is terminated or the network interface is detached. For more information, see RunInstances .

NetworkInterfaceId -> (string)

The ID of the network interface.

If you are creating a Spot Fleet, omit this parameter because you can’t specify a network interface ID in a launch specification.

PrivateIpAddress -> (string)

The private IPv4 address of the network interface. Applies only if creating a network interface when launching an instance. You cannot specify this option if you’re launching more than one instance in a RunInstances request.

PrivateIpAddresses -> (list)

The private IPv4 addresses to assign to the network interface. Only one private IPv4 address can be designated as primary. You cannot specify this option if you’re launching more than one instance in a RunInstances request.

(structure)

Describes a secondary private IPv4 address for a network interface.

Primary -> (boolean)

Indicates whether the private IPv4 address is the primary private IPv4 address. Only one IPv4 address can be designated as primary.

PrivateIpAddress -> (string)

The private IPv4 address.

SecondaryPrivateIpAddressCount -> (integer)

The number of secondary private IPv4 addresses. You can’t specify this option and specify more than one private IP address using the private IP addresses option. You cannot specify this option if you’re launching more than one instance in a RunInstances request.

SubnetId -> (string)

The ID of the subnet associated with the network interface. Applies only if creating a network interface when launching an instance.

AssociateCarrierIpAddress -> (boolean)

Indicates whether to assign a carrier IP address to the network interface.

You can only assign a carrier IP address to a network interface that is in a subnet in a Wavelength Zone. For more information about carrier IP addresses, see Carrier IP address in the Amazon Web Services Wavelength Developer Guide .

InterfaceType -> (string)

The type of network interface.

If you specify efa-only , do not assign any IP addresses to the network interface. EFA-only network interfaces do not support IP addresses.

Valid values: interface | efa | efa-only

NetworkCardIndex -> (integer)

The index of the network card. Some instance types support multiple network cards. The primary network interface must be assigned to network card index 0. The default is network card index 0.

If you are using RequestSpotInstances to create Spot Instances, omit this parameter because you can’t specify the network card index when using this API. To specify the network card index, use RunInstances .

Ipv4Prefixes -> (list)

The IPv4 delegated prefixes to be assigned to the network interface. You cannot use this option if you use the Ipv4PrefixCount option.

(structure)

Describes the IPv4 prefix option for a network interface.

Ipv4Prefix -> (string)

The IPv4 prefix. For information, see Assigning prefixes to network interfaces in the Amazon EC2 User Guide .

Ipv4PrefixCount -> (integer)

The number of IPv4 delegated prefixes to be automatically assigned to the network interface. You cannot use this option if you use the Ipv4Prefix option.

Ipv6Prefixes -> (list)

The IPv6 delegated prefixes to be assigned to the network interface. You cannot use this option if you use the Ipv6PrefixCount option.

(structure)

Describes the IPv4 prefix option for a network interface.

Ipv6Prefix -> (string)

The IPv6 prefix.

Ipv6PrefixCount -> (integer)

The number of IPv6 delegated prefixes to be automatically assigned to the network interface. You cannot use this option if you use the Ipv6Prefix option.

PrimaryIpv6 -> (boolean)

The primary IPv6 address of the network interface. When you enable an IPv6 GUA address to be a primary IPv6, the first IPv6 GUA will be made the primary IPv6 address until the instance is terminated or the network interface is detached. For more information about primary IPv6 addresses, see RunInstances .

EnaSrdSpecification -> (structure)

Specifies the ENA Express settings for the network interface that’s attached to the instance.

EnaSrdEnabled -> (boolean)

Specifies whether ENA Express is enabled for the network interface when you launch an instance from your launch template.

EnaSrdUdpSpecification -> (structure)

Contains ENA Express settings for UDP network traffic in your launch template.

EnaSrdUdpEnabled -> (boolean)

Indicates whether UDP traffic uses ENA Express for your instance. To ensure that UDP traffic can use ENA Express when you launch an instance, you must also set EnaSrdEnabled in the EnaSrdSpecificationRequest to true in your launch template.

ConnectionTrackingSpecification -> (structure)

A security group connection tracking specification that enables you to set the timeout for connection tracking on an Elastic network interface. For more information, see Connection tracking timeouts in the Amazon EC2 User Guide .

TcpEstablishedTimeout -> (integer)

Timeout (in seconds) for idle TCP connections in an established state. Min: 60 seconds. Max: 432000 seconds (5 days). Default: 432000 seconds. Recommended: Less than 432000 seconds.

UdpStreamTimeout -> (integer)

Timeout (in seconds) for idle UDP flows classified as streams which have seen more than one request-response transaction. Min: 60 seconds. Max: 180 seconds (3 minutes). Default: 180 seconds.

UdpTimeout -> (integer)

Timeout (in seconds) for idle UDP flows that have seen traffic only in a single direction or a single request-response transaction. Min: 30 seconds. Max: 60 seconds. Default: 30 seconds.

Placement -> (structure)

The placement information.

AvailabilityZone -> (string)

The Availability Zone.

[Spot Fleet only] To specify multiple Availability Zones, separate them using commas; for example, “us-west-2a, us-west-2b”.

GroupName -> (string)

The name of the placement group.

Tenancy -> (string)

The tenancy of the instance (if the instance is running in a VPC). An instance with a tenancy of dedicated runs on single-tenant hardware. The host tenancy is not supported for Spot Instances.

RamdiskId -> (string)

The ID of the RAM disk. Some kernels require additional drivers at launch. Check the kernel requirements for information about whether you need to specify a RAM disk. To find kernel requirements, refer to the Amazon Web Services Resource Center and search for the kernel ID.

SpotPrice -> (string)

The maximum price per unit hour that you are willing to pay for a Spot Instance. We do not recommend using this parameter because it can lead to increased interruptions. If you do not specify this parameter, you will pay the current Spot price.

Warning

If you specify a maximum price, your instances will be interrupted more frequently than if you do not specify this parameter.

SubnetId -> (string)

The IDs of the subnets in which to launch the instances. To specify multiple subnets, separate them using commas; for example, “subnet-1234abcdeexample1, subnet-0987cdef6example2”.

If you specify a network interface, you must specify any subnets as part of the network interface instead of using this parameter.

UserData -> (string)

The base64-encoded user data that instances use when starting up. User data is limited to 16 KB.

WeightedCapacity -> (double)

The number of units provided by the specified instance type. These are the same units that you chose to set the target capacity in terms of instances, or a performance characteristic such as vCPUs, memory, or I/O.

If the target capacity divided by this value is not a whole number, Amazon EC2 rounds the number of instances to the next whole number. If this value is not specified, the default is 1.

Note

When specifying weights, the price used in the lowestPrice and priceCapacityOptimized allocation strategies is per unit hour (where the instance price is divided by the specified weight). However, if all the specified weights are above the requested TargetCapacity , resulting in only 1 instance being launched, the price used is per instance hour.

TagSpecifications -> (list)

The tags to apply during creation.

(structure)

The tags for a Spot Fleet resource.

ResourceType -> (string)

The type of resource. Currently, the only resource type that is supported is instance . To tag the Spot Fleet request on creation, use the TagSpecifications parameter in `` SpotFleetRequestConfigData `` .

Tags -> (list)

The tags.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

InstanceRequirements -> (structure)

The attributes for the instance types. When you specify instance attributes, Amazon EC2 will identify instance types with those attributes.

Note

If you specify InstanceRequirements , you can’t specify InstanceType .

VCpuCount -> (structure)

The minimum and maximum number of vCPUs.

Min -> (integer)

The minimum number of vCPUs. If the value is 0 , there is no minimum limit.

Max -> (integer)

The maximum number of vCPUs. If this parameter is not specified, there is no maximum limit.

MemoryMiB -> (structure)

The minimum and maximum amount of memory, in MiB.

Min -> (integer)

The minimum amount of memory, in MiB. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum amount of memory, in MiB. If this parameter is not specified, there is no maximum limit.

CpuManufacturers -> (list)

The CPU manufacturers to include.

• For instance types with Intel CPUs, specify intel .
• For instance types with AMD CPUs, specify amd .
• For instance types with Amazon Web Services CPUs, specify amazon-web-services .

Note

Don’t confuse the CPU manufacturer with the CPU architecture. Instances will be launched with a compatible CPU architecture based on the Amazon Machine Image (AMI) that you specify in your launch template.

Default: Any manufacturer

(string)

MemoryGiBPerVCpu -> (structure)

The minimum and maximum amount of memory per vCPU, in GiB.

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of memory per vCPU, in GiB. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of memory per vCPU, in GiB. If this parameter is not specified, there is no maximum limit.

ExcludedInstanceTypes -> (list)

The instance types to exclude.

You can use strings with one or more wild cards, represented by an asterisk (* ), to exclude an instance type, size, or generation. The following are examples: m5.8xlarge , c5*.* , m5a.* , r* , *3* .

For example, if you specify c5* ,Amazon EC2 will exclude the entire C5 instance family, which includes all C5a and C5n instance types. If you specify m5a.* , Amazon EC2 will exclude all the M5a instance types, but not the M5n instance types.

Note

If you specify ExcludedInstanceTypes , you can’t specify AllowedInstanceTypes .

Default: No excluded instance types

(string)

InstanceGenerations -> (list)

Indicates whether current or previous generation instance types are included. The current generation instance types are recommended for use. Current generation instance types are typically the latest two to three generations in each instance family. For more information, see Instance types in the Amazon EC2 User Guide .

For current generation instance types, specify current .

For previous generation instance types, specify previous .

Default: Current and previous generation instance types

(string)

SpotMaxPricePercentageOverLowestPrice -> (integer)

[Price protection] The price protection threshold for Spot Instances, as a percentage higher than an identified Spot price. The identified Spot price is the Spot price of the lowest priced current generation C, M, or R instance type with your specified attributes. If no current generation C, M, or R instance type matches your attributes, then the identified Spot price is from the lowest priced current generation instance types, and failing that, from the lowest priced previous generation instance types that match your attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose Spot price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is applied based on the per-vCPU or per-memory price instead of the per-instance price.

This parameter is not supported for GetSpotPlacementScores and GetInstanceTypesFromInstanceRequirements .

Note

Only one of SpotMaxPricePercentageOverLowestPrice or MaxSpotPriceAsPercentageOfOptimalOnDemandPrice can be specified. If you don’t specify either, Amazon EC2 will automatically apply optimal price protection to consistently select from a wide range of instance types. To indicate no price protection threshold for Spot Instances, meaning you want to consider all instance types that match your attributes, include one of these parameters and specify a high value, such as 999999 .

Default: 100

OnDemandMaxPricePercentageOverLowestPrice -> (integer)

[Price protection] The price protection threshold for On-Demand Instances, as a percentage higher than an identified On-Demand price. The identified On-Demand price is the price of the lowest priced current generation C, M, or R instance type with your specified attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

To turn off price protection, specify a high value, such as 999999 .

This parameter is not supported for GetSpotPlacementScores and GetInstanceTypesFromInstanceRequirements .

Note

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is applied based on the per-vCPU or per-memory price instead of the per-instance price.

Default: 20

BareMetal -> (string)

Indicates whether bare metal instance types must be included, excluded, or required.

• To include bare metal instance types, specify included .
• To require only bare metal instance types, specify required .
• To exclude bare metal instance types, specify excluded .

Default: excluded

BurstablePerformance -> (string)

Indicates whether burstable performance T instance types are included, excluded, or required. For more information, see Burstable performance instances .

• To include burstable performance instance types, specify included .
• To require only burstable performance instance types, specify required .
• To exclude burstable performance instance types, specify excluded .

Default: excluded

RequireHibernateSupport -> (boolean)

Indicates whether instance types must support hibernation for On-Demand Instances.

This parameter is not supported for GetSpotPlacementScores .

Default: false

NetworkInterfaceCount -> (structure)

The minimum and maximum number of network interfaces.

Default: No minimum or maximum limits

Min -> (integer)

The minimum number of network interfaces. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum number of network interfaces. If this parameter is not specified, there is no maximum limit.

LocalStorage -> (string)

Indicates whether instance types with instance store volumes are included, excluded, or required. For more information, Amazon EC2 instance store in the Amazon EC2 User Guide .

• To include instance types with instance store volumes, specify included .
• To require only instance types with instance store volumes, specify required .
• To exclude instance types with instance store volumes, specify excluded .

Default: included

LocalStorageTypes -> (list)

The type of local storage that is required.

• For instance types with hard disk drive (HDD) storage, specify hdd .
• For instance types with solid state drive (SSD) storage, specify ssd .

Default: hdd and ssd

(string)

TotalLocalStorageGB -> (structure)

The minimum and maximum amount of total local storage, in GB.

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of total local storage, in GB. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of total local storage, in GB. If this parameter is not specified, there is no maximum limit.

BaselineEbsBandwidthMbps -> (structure)

The minimum and maximum baseline bandwidth to Amazon EBS, in Mbps. For more information, see Amazon EBS–optimized instances in the Amazon EC2 User Guide .

Default: No minimum or maximum limits

Min -> (integer)

The minimum baseline bandwidth, in Mbps. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum baseline bandwidth, in Mbps. If this parameter is not specified, there is no maximum limit.

AcceleratorTypes -> (list)

The accelerator types that must be on the instance type.

• For instance types with GPU accelerators, specify gpu .
• For instance types with FPGA accelerators, specify fpga .

Default: Any accelerator type

(string)

AcceleratorCount -> (structure)

The minimum and maximum number of accelerators (GPUs, FPGAs, or Amazon Web Services Inferentia chips) on an instance.

To exclude accelerator-enabled instance types, set Max to 0 .

Default: No minimum or maximum limits

Min -> (integer)

The minimum number of accelerators. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum number of accelerators. If this parameter is not specified, there is no maximum limit.

AcceleratorManufacturers -> (list)

Indicates whether instance types must have accelerators by specific manufacturers.

• For instance types with Amazon Web Services devices, specify amazon-web-services .
• For instance types with AMD devices, specify amd .
• For instance types with Habana devices, specify habana .
• For instance types with NVIDIA devices, specify nvidia .
• For instance types with Xilinx devices, specify xilinx .

Default: Any manufacturer

(string)

AcceleratorNames -> (list)

The accelerators that must be on the instance type.

• For instance types with NVIDIA A10G GPUs, specify a10g .
• For instance types with NVIDIA A100 GPUs, specify a100 .
• For instance types with NVIDIA H100 GPUs, specify h100 .
• For instance types with Amazon Web Services Inferentia chips, specify inferentia .
• For instance types with NVIDIA GRID K520 GPUs, specify k520 .
• For instance types with NVIDIA K80 GPUs, specify k80 .
• For instance types with NVIDIA M60 GPUs, specify m60 .
• For instance types with AMD Radeon Pro V520 GPUs, specify radeon-pro-v520 .
• For instance types with NVIDIA T4 GPUs, specify t4 .
• For instance types with NVIDIA T4G GPUs, specify t4g .
• For instance types with Xilinx VU9P FPGAs, specify vu9p .
• For instance types with NVIDIA V100 GPUs, specify v100 .

Default: Any accelerator

(string)

AcceleratorTotalMemoryMiB -> (structure)

The minimum and maximum amount of total accelerator memory, in MiB.

Default: No minimum or maximum limits

Min -> (integer)

The minimum amount of accelerator memory, in MiB. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum amount of accelerator memory, in MiB. If this parameter is not specified, there is no maximum limit.

NetworkBandwidthGbps -> (structure)

The minimum and maximum amount of network bandwidth, in gigabits per second (Gbps).

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of network bandwidth, in Gbps. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of network bandwidth, in Gbps. If this parameter is not specified, there is no maximum limit.

AllowedInstanceTypes -> (list)

The instance types to apply your specified attributes against. All other instance types are ignored, even if they match your specified attributes.

You can use strings with one or more wild cards, represented by an asterisk (* ), to allow an instance type, size, or generation. The following are examples: m5.8xlarge , c5*.* , m5a.* , r* , *3* .

For example, if you specify c5* ,Amazon EC2 will allow the entire C5 instance family, which includes all C5a and C5n instance types. If you specify m5a.* , Amazon EC2 will allow all the M5a instance types, but not the M5n instance types.

Note

If you specify AllowedInstanceTypes , you can’t specify ExcludedInstanceTypes .

Default: All instance types

(string)

MaxSpotPriceAsPercentageOfOptimalOnDemandPrice -> (integer)

[Price protection] The price protection threshold for Spot Instances, as a percentage of an identified On-Demand price. The identified On-Demand price is the price of the lowest priced current generation C, M, or R instance type with your specified attributes. If no current generation C, M, or R instance type matches your attributes, then the identified price is from the lowest priced current generation instance types, and failing that, from the lowest priced previous generation instance types that match your attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is based on the per vCPU or per memory price instead of the per instance price.

Note

Only one of SpotMaxPricePercentageOverLowestPrice or MaxSpotPriceAsPercentageOfOptimalOnDemandPrice can be specified. If you don’t specify either, Amazon EC2 will automatically apply optimal price protection to consistently select from a wide range of instance types. To indicate no price protection threshold for Spot Instances, meaning you want to consider all instance types that match your attributes, include one of these parameters and specify a high value, such as 999999 .

BaselinePerformanceFactors -> (structure)

The baseline performance to consider, using an instance family as a baseline reference. The instance family establishes the lowest acceptable level of performance. Amazon EC2 uses this baseline to guide instance type selection, but there is no guarantee that the selected instance types will always exceed the baseline for every application. Currently, this parameter only supports CPU performance as a baseline performance factor. For more information, see Performance protection in the Amazon EC2 User Guide .

Cpu -> (structure)

The CPU performance to consider, using an instance family as the baseline reference.

References -> (list)

Specify an instance family to use as the baseline reference for CPU performance. All instance types that match your specified attributes will be compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture differences.

Note

Currently, only one instance family can be specified in the list.

(structure)

Specify an instance family to use as the baseline reference for CPU performance. All instance types that match your specified attributes will be compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture.

Note

Currently, only one instance family can be specified in the list.

InstanceFamily -> (string)

The instance family to use as a baseline reference.

Note

Ensure that you specify the correct value for the instance family. The instance family is everything before the period (. ) in the instance type name. For example, in the instance type c6i.large , the instance family is c6i , not c6 . For more information, see Amazon EC2 instance type naming conventions in Amazon EC2 Instance Types .

The following instance families are not supported for performance protection:

• c1
• g3 | g3s
• hpc7g
• m1 | m2
• mac1 | mac2 | mac2-m1ultra | mac2-m2 | mac2-m2pro
• p3dn | p4d | p5
• t1
• u-12tb1 | u-18tb1 | u-24tb1 | u-3tb1 | u-6tb1 | u-9tb1 | u7i-12tb | u7in-16tb | u7in-24tb | u7in-32tb

If you enable performance protection by specifying a supported instance family, the returned instance types will exclude the above unsupported instance families.

If you specify an unsupported instance family as a value for baseline performance, the API returns an empty response for and an exception for , , , and .

SecurityGroups -> (list)

The security groups.

If you specify a network interface, you must specify any security groups as part of the network interface instead of using this parameter.

(structure)

Describes a security group.

GroupId -> (string)

The ID of the security group.

GroupName -> (string)

The name of the security group.

LaunchTemplateConfigs -> (list)

The launch template and overrides. If you specify LaunchTemplateConfigs , you can’t specify LaunchSpecifications . If you include On-Demand capacity in your request, you must use LaunchTemplateConfigs .

(structure)

Describes a launch template and overrides.

LaunchTemplateSpecification -> (structure)

The launch template to use. Make sure that the launch template does not contain the NetworkInterfaceId parameter because you can’t specify a network interface ID in a Spot Fleet.

LaunchTemplateId -> (string)

The ID of the launch template.

You must specify the LaunchTemplateId or the LaunchTemplateName , but not both.

LaunchTemplateName -> (string)

The name of the launch template.

You must specify the LaunchTemplateName or the LaunchTemplateId , but not both.

Version -> (string)

The launch template version number, $Latest , or $Default . You must specify a value, otherwise the request fails.

If the value is $Latest , Amazon EC2 uses the latest version of the launch template.

If the value is $Default , Amazon EC2 uses the default version of the launch template.

Overrides -> (list)

Any parameters that you specify override the same parameters in the launch template.

(structure)

Describes overrides for a launch template.

InstanceType -> (string)

The instance type.

SpotPrice -> (string)

The maximum price per unit hour that you are willing to pay for a Spot Instance. We do not recommend using this parameter because it can lead to increased interruptions. If you do not specify this parameter, you will pay the current Spot price.

Warning

If you specify a maximum price, your instances will be interrupted more frequently than if you do not specify this parameter.

SubnetId -> (string)

The ID of the subnet in which to launch the instances.

AvailabilityZone -> (string)

The Availability Zone in which to launch the instances.

WeightedCapacity -> (double)

The number of units provided by the specified instance type. These are the same units that you chose to set the target capacity in terms of instances, or a performance characteristic such as vCPUs, memory, or I/O.

If the target capacity divided by this value is not a whole number, Amazon EC2 rounds the number of instances to the next whole number. If this value is not specified, the default is 1.

Note

When specifying weights, the price used in the lowestPrice and priceCapacityOptimized allocation strategies is per unit hour (where the instance price is divided by the specified weight). However, if all the specified weights are above the requested TargetCapacity , resulting in only 1 instance being launched, the price used is per instance hour.

Priority -> (double)

The priority for the launch template override. The highest priority is launched first.

If OnDemandAllocationStrategy is set to prioritized , Spot Fleet uses priority to determine which launch template override to use first in fulfilling On-Demand capacity.

If the Spot AllocationStrategy is set to capacityOptimizedPrioritized , Spot Fleet uses priority on a best-effort basis to determine which launch template override to use in fulfilling Spot capacity, but optimizes for capacity first.

Valid values are whole numbers starting at 0 . The lower the number, the higher the priority. If no number is set, the launch template override has the lowest priority. You can set the same priority for different launch template overrides.

InstanceRequirements -> (structure)

The instance requirements. When you specify instance requirements, Amazon EC2 will identify instance types with the provided requirements, and then use your On-Demand and Spot allocation strategies to launch instances from these instance types, in the same way as when you specify a list of instance types.

Note

If you specify InstanceRequirements , you can’t specify InstanceType .

VCpuCount -> (structure)

The minimum and maximum number of vCPUs.

Min -> (integer)

The minimum number of vCPUs. If the value is 0 , there is no minimum limit.

Max -> (integer)

The maximum number of vCPUs. If this parameter is not specified, there is no maximum limit.

MemoryMiB -> (structure)

The minimum and maximum amount of memory, in MiB.

Min -> (integer)

The minimum amount of memory, in MiB. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum amount of memory, in MiB. If this parameter is not specified, there is no maximum limit.

CpuManufacturers -> (list)

The CPU manufacturers to include.

• For instance types with Intel CPUs, specify intel .
• For instance types with AMD CPUs, specify amd .
• For instance types with Amazon Web Services CPUs, specify amazon-web-services .

Note

Don’t confuse the CPU manufacturer with the CPU architecture. Instances will be launched with a compatible CPU architecture based on the Amazon Machine Image (AMI) that you specify in your launch template.

Default: Any manufacturer

(string)

MemoryGiBPerVCpu -> (structure)

The minimum and maximum amount of memory per vCPU, in GiB.

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of memory per vCPU, in GiB. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of memory per vCPU, in GiB. If this parameter is not specified, there is no maximum limit.

ExcludedInstanceTypes -> (list)

The instance types to exclude.

You can use strings with one or more wild cards, represented by an asterisk (* ), to exclude an instance type, size, or generation. The following are examples: m5.8xlarge , c5*.* , m5a.* , r* , *3* .

For example, if you specify c5* ,Amazon EC2 will exclude the entire C5 instance family, which includes all C5a and C5n instance types. If you specify m5a.* , Amazon EC2 will exclude all the M5a instance types, but not the M5n instance types.

Note

If you specify ExcludedInstanceTypes , you can’t specify AllowedInstanceTypes .

Default: No excluded instance types

(string)

InstanceGenerations -> (list)

Indicates whether current or previous generation instance types are included. The current generation instance types are recommended for use. Current generation instance types are typically the latest two to three generations in each instance family. For more information, see Instance types in the Amazon EC2 User Guide .

For current generation instance types, specify current .

For previous generation instance types, specify previous .

Default: Current and previous generation instance types

(string)

SpotMaxPricePercentageOverLowestPrice -> (integer)

[Price protection] The price protection threshold for Spot Instances, as a percentage higher than an identified Spot price. The identified Spot price is the Spot price of the lowest priced current generation C, M, or R instance type with your specified attributes. If no current generation C, M, or R instance type matches your attributes, then the identified Spot price is from the lowest priced current generation instance types, and failing that, from the lowest priced previous generation instance types that match your attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose Spot price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is applied based on the per-vCPU or per-memory price instead of the per-instance price.

This parameter is not supported for GetSpotPlacementScores and GetInstanceTypesFromInstanceRequirements .

Note

Only one of SpotMaxPricePercentageOverLowestPrice or MaxSpotPriceAsPercentageOfOptimalOnDemandPrice can be specified. If you don’t specify either, Amazon EC2 will automatically apply optimal price protection to consistently select from a wide range of instance types. To indicate no price protection threshold for Spot Instances, meaning you want to consider all instance types that match your attributes, include one of these parameters and specify a high value, such as 999999 .

Default: 100

OnDemandMaxPricePercentageOverLowestPrice -> (integer)

[Price protection] The price protection threshold for On-Demand Instances, as a percentage higher than an identified On-Demand price. The identified On-Demand price is the price of the lowest priced current generation C, M, or R instance type with your specified attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

To turn off price protection, specify a high value, such as 999999 .

This parameter is not supported for GetSpotPlacementScores and GetInstanceTypesFromInstanceRequirements .

Note

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is applied based on the per-vCPU or per-memory price instead of the per-instance price.

Default: 20

BareMetal -> (string)

Indicates whether bare metal instance types must be included, excluded, or required.

• To include bare metal instance types, specify included .
• To require only bare metal instance types, specify required .
• To exclude bare metal instance types, specify excluded .

Default: excluded

BurstablePerformance -> (string)

Indicates whether burstable performance T instance types are included, excluded, or required. For more information, see Burstable performance instances .

• To include burstable performance instance types, specify included .
• To require only burstable performance instance types, specify required .
• To exclude burstable performance instance types, specify excluded .

Default: excluded

RequireHibernateSupport -> (boolean)

Indicates whether instance types must support hibernation for On-Demand Instances.

This parameter is not supported for GetSpotPlacementScores .

Default: false

NetworkInterfaceCount -> (structure)

The minimum and maximum number of network interfaces.

Default: No minimum or maximum limits

Min -> (integer)

The minimum number of network interfaces. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum number of network interfaces. If this parameter is not specified, there is no maximum limit.

LocalStorage -> (string)

Indicates whether instance types with instance store volumes are included, excluded, or required. For more information, Amazon EC2 instance store in the Amazon EC2 User Guide .

• To include instance types with instance store volumes, specify included .
• To require only instance types with instance store volumes, specify required .
• To exclude instance types with instance store volumes, specify excluded .

Default: included

LocalStorageTypes -> (list)

The type of local storage that is required.

• For instance types with hard disk drive (HDD) storage, specify hdd .
• For instance types with solid state drive (SSD) storage, specify ssd .

Default: hdd and ssd

(string)

TotalLocalStorageGB -> (structure)

The minimum and maximum amount of total local storage, in GB.

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of total local storage, in GB. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of total local storage, in GB. If this parameter is not specified, there is no maximum limit.

BaselineEbsBandwidthMbps -> (structure)

The minimum and maximum baseline bandwidth to Amazon EBS, in Mbps. For more information, see Amazon EBS–optimized instances in the Amazon EC2 User Guide .

Default: No minimum or maximum limits

Min -> (integer)

The minimum baseline bandwidth, in Mbps. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum baseline bandwidth, in Mbps. If this parameter is not specified, there is no maximum limit.

AcceleratorTypes -> (list)

The accelerator types that must be on the instance type.

• For instance types with GPU accelerators, specify gpu .
• For instance types with FPGA accelerators, specify fpga .

Default: Any accelerator type

(string)

AcceleratorCount -> (structure)

The minimum and maximum number of accelerators (GPUs, FPGAs, or Amazon Web Services Inferentia chips) on an instance.

To exclude accelerator-enabled instance types, set Max to 0 .

Default: No minimum or maximum limits

Min -> (integer)

The minimum number of accelerators. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum number of accelerators. If this parameter is not specified, there is no maximum limit.

AcceleratorManufacturers -> (list)

Indicates whether instance types must have accelerators by specific manufacturers.

• For instance types with Amazon Web Services devices, specify amazon-web-services .
• For instance types with AMD devices, specify amd .
• For instance types with Habana devices, specify habana .
• For instance types with NVIDIA devices, specify nvidia .
• For instance types with Xilinx devices, specify xilinx .

Default: Any manufacturer

(string)

AcceleratorNames -> (list)

The accelerators that must be on the instance type.

• For instance types with NVIDIA A10G GPUs, specify a10g .
• For instance types with NVIDIA A100 GPUs, specify a100 .
• For instance types with NVIDIA H100 GPUs, specify h100 .
• For instance types with Amazon Web Services Inferentia chips, specify inferentia .
• For instance types with NVIDIA GRID K520 GPUs, specify k520 .
• For instance types with NVIDIA K80 GPUs, specify k80 .
• For instance types with NVIDIA M60 GPUs, specify m60 .
• For instance types with AMD Radeon Pro V520 GPUs, specify radeon-pro-v520 .
• For instance types with NVIDIA T4 GPUs, specify t4 .
• For instance types with NVIDIA T4G GPUs, specify t4g .
• For instance types with Xilinx VU9P FPGAs, specify vu9p .
• For instance types with NVIDIA V100 GPUs, specify v100 .

Default: Any accelerator

(string)

AcceleratorTotalMemoryMiB -> (structure)

The minimum and maximum amount of total accelerator memory, in MiB.

Default: No minimum or maximum limits

Min -> (integer)

The minimum amount of accelerator memory, in MiB. If this parameter is not specified, there is no minimum limit.

Max -> (integer)

The maximum amount of accelerator memory, in MiB. If this parameter is not specified, there is no maximum limit.

NetworkBandwidthGbps -> (structure)

The minimum and maximum amount of network bandwidth, in gigabits per second (Gbps).

Default: No minimum or maximum limits

Min -> (double)

The minimum amount of network bandwidth, in Gbps. If this parameter is not specified, there is no minimum limit.

Max -> (double)

The maximum amount of network bandwidth, in Gbps. If this parameter is not specified, there is no maximum limit.

AllowedInstanceTypes -> (list)

The instance types to apply your specified attributes against. All other instance types are ignored, even if they match your specified attributes.

You can use strings with one or more wild cards, represented by an asterisk (* ), to allow an instance type, size, or generation. The following are examples: m5.8xlarge , c5*.* , m5a.* , r* , *3* .

For example, if you specify c5* ,Amazon EC2 will allow the entire C5 instance family, which includes all C5a and C5n instance types. If you specify m5a.* , Amazon EC2 will allow all the M5a instance types, but not the M5n instance types.

Note

If you specify AllowedInstanceTypes , you can’t specify ExcludedInstanceTypes .

Default: All instance types

(string)

MaxSpotPriceAsPercentageOfOptimalOnDemandPrice -> (integer)

[Price protection] The price protection threshold for Spot Instances, as a percentage of an identified On-Demand price. The identified On-Demand price is the price of the lowest priced current generation C, M, or R instance type with your specified attributes. If no current generation C, M, or R instance type matches your attributes, then the identified price is from the lowest priced current generation instance types, and failing that, from the lowest priced previous generation instance types that match your attributes. When Amazon EC2 selects instance types with your attributes, it will exclude instance types whose price exceeds your specified threshold.

The parameter accepts an integer, which Amazon EC2 interprets as a percentage.

If you set TargetCapacityUnitType to vcpu or memory-mib , the price protection threshold is based on the per vCPU or per memory price instead of the per instance price.

Note

Only one of SpotMaxPricePercentageOverLowestPrice or MaxSpotPriceAsPercentageOfOptimalOnDemandPrice can be specified. If you don’t specify either, Amazon EC2 will automatically apply optimal price protection to consistently select from a wide range of instance types. To indicate no price protection threshold for Spot Instances, meaning you want to consider all instance types that match your attributes, include one of these parameters and specify a high value, such as 999999 .

BaselinePerformanceFactors -> (structure)

The baseline performance to consider, using an instance family as a baseline reference. The instance family establishes the lowest acceptable level of performance. Amazon EC2 uses this baseline to guide instance type selection, but there is no guarantee that the selected instance types will always exceed the baseline for every application. Currently, this parameter only supports CPU performance as a baseline performance factor. For more information, see Performance protection in the Amazon EC2 User Guide .

Cpu -> (structure)

The CPU performance to consider, using an instance family as the baseline reference.

References -> (list)

Specify an instance family to use as the baseline reference for CPU performance. All instance types that match your specified attributes will be compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture differences.

Note

Currently, only one instance family can be specified in the list.

(structure)

Specify an instance family to use as the baseline reference for CPU performance. All instance types that match your specified attributes will be compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture.

Note

Currently, only one instance family can be specified in the list.

InstanceFamily -> (string)

The instance family to use as a baseline reference.

Note

Ensure that you specify the correct value for the instance family. The instance family is everything before the period (. ) in the instance type name. For example, in the instance type c6i.large , the instance family is c6i , not c6 . For more information, see Amazon EC2 instance type naming conventions in Amazon EC2 Instance Types .

The following instance families are not supported for performance protection:

• c1
• g3 | g3s
• hpc7g
• m1 | m2
• mac1 | mac2 | mac2-m1ultra | mac2-m2 | mac2-m2pro
• p3dn | p4d | p5
• t1
• u-12tb1 | u-18tb1 | u-24tb1 | u-3tb1 | u-6tb1 | u-9tb1 | u7i-12tb | u7in-16tb | u7in-24tb | u7in-32tb

If you enable performance protection by specifying a supported instance family, the returned instance types will exclude the above unsupported instance families.

If you specify an unsupported instance family as a value for baseline performance, the API returns an empty response for and an exception for , , , and .

SpotPrice -> (string)

The maximum price per unit hour that you are willing to pay for a Spot Instance. We do not recommend using this parameter because it can lead to increased interruptions. If you do not specify this parameter, you will pay the current Spot price.

Warning

If you specify a maximum price, your instances will be interrupted more frequently than if you do not specify this parameter.

TargetCapacity -> (integer)

The number of units to request for the Spot Fleet. You can choose to set the target capacity in terms of instances or a performance characteristic that is important to your application workload, such as vCPUs, memory, or I/O. If the request type is maintain , you can specify a target capacity of 0 and add capacity later.

OnDemandTargetCapacity -> (integer)

The number of On-Demand units to request. You can choose to set the target capacity in terms of instances or a performance characteristic that is important to your application workload, such as vCPUs, memory, or I/O. If the request type is maintain , you can specify a target capacity of 0 and add capacity later.

OnDemandMaxTotalPrice -> (string)

The maximum amount per hour for On-Demand Instances that you’re willing to pay. You can use the onDemandMaxTotalPrice parameter, the spotMaxTotalPrice parameter, or both parameters to ensure that your fleet cost does not exceed your budget. If you set a maximum price per hour for the On-Demand Instances and Spot Instances in your request, Spot Fleet will launch instances until it reaches the maximum amount you’re willing to pay. When the maximum amount you’re willing to pay is reached, the fleet stops launching instances even if it hasn’t met the target capacity.

Note

If your fleet includes T instances that are configured as unlimited , and if their average CPU usage exceeds the baseline utilization, you will incur a charge for surplus credits. The onDemandMaxTotalPrice does not account for surplus credits, and, if you use surplus credits, your final cost might be higher than what you specified for onDemandMaxTotalPrice . For more information, see Surplus credits can incur charges in the Amazon EC2 User Guide .

SpotMaxTotalPrice -> (string)

The maximum amount per hour for Spot Instances that you’re willing to pay. You can use the spotMaxTotalPrice parameter, the onDemandMaxTotalPrice parameter, or both parameters to ensure that your fleet cost does not exceed your budget. If you set a maximum price per hour for the On-Demand Instances and Spot Instances in your request, Spot Fleet will launch instances until it reaches the maximum amount you’re willing to pay. When the maximum amount you’re willing to pay is reached, the fleet stops launching instances even if it hasn’t met the target capacity.

Note

If your fleet includes T instances that are configured as unlimited , and if their average CPU usage exceeds the baseline utilization, you will incur a charge for surplus credits. The spotMaxTotalPrice does not account for surplus credits, and, if you use surplus credits, your final cost might be higher than what you specified for spotMaxTotalPrice . For more information, see Surplus credits can incur charges in the Amazon EC2 User Guide .

TerminateInstancesWithExpiration -> (boolean)

Indicates whether running Spot Instances are terminated when the Spot Fleet request expires.

Type -> (string)

The type of request. Indicates whether the Spot Fleet only requests the target capacity or also attempts to maintain it. When this value is request , the Spot Fleet only places the required requests. It does not attempt to replenish Spot Instances if capacity is diminished, nor does it submit requests in alternative Spot pools if capacity is not available. When this value is maintain , the Spot Fleet maintains the target capacity. The Spot Fleet places the required requests to meet capacity and automatically replenishes any interrupted instances. Default: maintain . instant is listed but is not used by Spot Fleet.

ValidFrom -> (timestamp)

The start date and time of the request, in UTC format (YYYY -MM -DD T*HH* :MM :SS Z). By default, Amazon EC2 starts fulfilling the request immediately.

ValidUntil -> (timestamp)

The end date and time of the request, in UTC format (YYYY -MM -DD T*HH* :MM :SS Z). After the end date and time, no new Spot Instance requests are placed or able to fulfill the request. If no value is specified, the Spot Fleet request remains until you cancel it.

ReplaceUnhealthyInstances -> (boolean)

Indicates whether Spot Fleet should replace unhealthy instances.

InstanceInterruptionBehavior -> (string)

The behavior when a Spot Instance is interrupted. The default is terminate .

LoadBalancersConfig -> (structure)

One or more Classic Load Balancers and target groups to attach to the Spot Fleet request. Spot Fleet registers the running Spot Instances with the specified Classic Load Balancers and target groups.

With Network Load Balancers, Spot Fleet cannot register instances that have the following instance types: C1, CC1, CC2, CG1, CG2, CR1, CS1, G1, G2, HI1, HS1, M1, M2, M3, and T1.

ClassicLoadBalancersConfig -> (structure)

The Classic Load Balancers.

ClassicLoadBalancers -> (list)

One or more Classic Load Balancers.

(structure)

Describes a Classic Load Balancer.

Name -> (string)

The name of the load balancer.

TargetGroupsConfig -> (structure)

The target groups.

TargetGroups -> (list)

One or more target groups.

(structure)

Describes a load balancer target group.

Arn -> (string)

The Amazon Resource Name (ARN) of the target group.

InstancePoolsToUseCount -> (integer)

The number of Spot pools across which to allocate your target Spot capacity. Valid only when Spot AllocationStrategy is set to lowest-price . Spot Fleet selects the cheapest Spot pools and evenly allocates your target Spot capacity across the number of Spot pools that you specify.

Note that Spot Fleet attempts to draw Spot Instances from the number of pools that you specify on a best effort basis. If a pool runs out of Spot capacity before fulfilling your target capacity, Spot Fleet will continue to fulfill your request by drawing from the next cheapest pool. To ensure that your target capacity is met, you might receive Spot Instances from more than the number of pools that you specified. Similarly, if most of the pools have no Spot capacity, you might receive your full target capacity from fewer than the number of pools that you specified.

Context -> (string)

Reserved.

TargetCapacityUnitType -> (string)

The unit for the target capacity. You can specify this parameter only when using attribute-based instance type selection.

Default: units (the number of instances)

TagSpecifications -> (list)

The key-value pair for tagging the Spot Fleet request on creation. The value for ResourceType must be spot-fleet-request , otherwise the Spot Fleet request fails. To tag instances at launch, specify the tags in the launch template (valid only if you use LaunchTemplateConfigs ) or in the `` SpotFleetTagSpecification `` (valid only if you use LaunchSpecifications ). For information about tagging after launch, see Tag your resources .

(structure)

The tags to apply to a resource when the resource is being created. When you specify a tag, you must specify the resource type to tag, otherwise the request will fail.

Note

The Valid Values lists all the resource types that can be tagged. However, the action you’re using might not support tagging all of these resource types. If you try to tag a resource type that is unsupported for the action you’re using, you’ll get an error.

ResourceType -> (string)

The type of resource to tag on creation.

Tags -> (list)

The tags to apply to the resource.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

JSON Syntax:

{
  "AllocationStrategy": "lowestPrice"|"diversified"|"capacityOptimized"|"capacityOptimizedPrioritized"|"priceCapacityOptimized",
  "OnDemandAllocationStrategy": "lowestPrice"|"prioritized",
  "SpotMaintenanceStrategies": {
    "CapacityRebalance": {
      "ReplacementStrategy": "launch"|"launch-before-terminate",
      "TerminationDelay": integer
    }
  },
  "ClientToken": "string",
  "ExcessCapacityTerminationPolicy": "noTermination"|"default",
  "FulfilledCapacity": double,
  "OnDemandFulfilledCapacity": double,
  "IamFleetRole": "string",
  "LaunchSpecifications": [
    {
      "AddressingType": "string",
      "BlockDeviceMappings": [
        {
          "Ebs": {
            "DeleteOnTermination": true|false,
            "Iops": integer,
            "SnapshotId": "string",
            "VolumeSize": integer,
            "VolumeType": "standard"|"io1"|"io2"|"gp2"|"sc1"|"st1"|"gp3",
            "KmsKeyId": "string",
            "Throughput": integer,
            "OutpostArn": "string",
            "Encrypted": true|false
          },
          "NoDevice": "string",
          "DeviceName": "string",
          "VirtualName": "string"
        }
        ...
      ],
      "EbsOptimized": true|false,
      "IamInstanceProfile": {
        "Arn": "string",
        "Name": "string"
      },
      "ImageId": "string",
      "InstanceType": 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large"|"r5d.8xlarge"|"r5d.12xlarge"|"r5d.16xlarge"|"r5d.24xlarge"|"r5d.metal"|"r5dn.large"|"r5dn.xlarge"|"r5dn.2xlarge"|"r5dn.4xlarge"|"r5dn.8xlarge"|"r5dn.12xlarge"|"r5dn.16xlarge"|"r5dn.24xlarge"|"r5dn.metal"|"r5n.large"|"r5n.xlarge"|"r5n.2xlarge"|"r5n.4xlarge"|"r5n.8xlarge"|"r5n.12xlarge"|"r5n.16xlarge"|"r5n.24xlarge"|"r5n.metal"|"r6g.medium"|"r6g.large"|"r6g.xlarge"|"r6g.2xlarge"|"r6g.4xlarge"|"r6g.8xlarge"|"r6g.12xlarge"|"r6g.16xlarge"|"r6g.metal"|"r6gd.medium"|"r6gd.large"|"r6gd.xlarge"|"r6gd.2xlarge"|"r6gd.4xlarge"|"r6gd.8xlarge"|"r6gd.12xlarge"|"r6gd.16xlarge"|"r6gd.metal"|"r6i.large"|"r6i.xlarge"|"r6i.2xlarge"|"r6i.4xlarge"|"r6i.8xlarge"|"r6i.12xlarge"|"r6i.16xlarge"|"r6i.24xlarge"|"r6i.32xlarge"|"r6i.metal"|"t1.micro"|"t2.nano"|"t2.micro"|"t2.small"|"t2.medium"|"t2.large"|"t2.xlarge"|"t2.2xlarge"|"t3.nano"|"t3.micro"|"t3.small"|"t3.medium"|"t3.large"|"t3.xlarge"|"t3.2xlarge"|"t3a.nano"|"t3a.micro"|"t3a.small"|"t3a.medium"|"t3a.large"|"t3a.xlarge"|"t3a.2xlarge"|"t4g.nano"|"t4g.micro"|"t4g.small"|"t4g.medium"|"t4g.large"|"t4g.xlarge"|"t4g.2xlarge"|"u-6tb1.56xlarge"|"u-6tb1.112xlarge"|"u-9tb1.112xlarge"|"u-12tb1.112xlarge"|"u-6tb1.metal"|"u-9tb1.metal"|"u-12tb1.metal"|"u-18tb1.metal"|"u-24tb1.metal"|"vt1.3xlarge"|"vt1.6xlarge"|"vt1.24xlarge"|"x1.16xlarge"|"x1.32xlarge"|"x1e.xlarge"|"x1e.2xlarge"|"x1e.4xlarge"|"x1e.8xlarge"|"x1e.16xlarge"|"x1e.32xlarge"|"x2iezn.2xlarge"|"x2iezn.4xlarge"|"x2iezn.6xlarge"|"x2iezn.8xlarge"|"x2iezn.12xlarge"|"x2iezn.metal"|"x2gd.medium"|"x2gd.large"|"x2gd.xlarge"|"x2gd.2xlarge"|"x2gd.4xlarge"|"x2gd.8xlarge"|"x2gd.12xlarge"|"x2gd.16xlarge"|"x2gd.metal"|"z1d.large"|"z1d.xlarge"|"z1d.2xlarge"|"z1d.3xlarge"|"z1d.6xlarge"|"z1d.12xlarge"|"z1d.metal"|"x2idn.16xlarge"|"x2idn.24xlarge"|"x2idn.32xlarge"|"x2iedn.xlarge"|"x2iedn.2xlarge"|"x2iedn.4xlarge"|"x2iedn.8xlarge"|"x2iedn.16xlarge"|"x2iedn.24xlarge"|"x2iedn.32xlarge"|"c6a.large"|"c6a.xlarge"|"c6a.2xlarge"|"c6a.4xlarge"|"c6a.8xlarge"|"c6a.12xlarge"|"c6a.16xlarge"|"c6a.24xlarge"|"c6a.32xlarge"|"c6a.48xlarge"|"c6a.metal"|"m6a.metal"|"i4i.large"|"i4i.xlarge"|"i4i.2xlarge"|"i4i.4xlarge"|"i4i.8xlarge"|"i4i.16xlarge"|"i4i.32xlarge"|"i4i.metal"|"x2idn.metal"|"x2iedn.metal"|"c7g.medium"|"c7g.large"|"c7g.xlarge"|"c7g.2xlarge"|"c7g.4xlarge"|"c7g.8xlarge"|"c7g.12xlarge"|"c7g.16xlarge"|"mac2.metal"|"c6id.large"|"c6id.xlarge"|"c6id.2xlarge"|"c6id.4xlarge"|"c6id.8xlarge"|"c6id.12xlarge"|"c6id.16xlarge"|"c6id.24xlarge"|"c6id.32xlarge"|"c6id.metal"|"m6id.large"|"m6id.xlarge"|"m6id.2xlarge"|"m6id.4xlarge"|"m6id.8xlarge"|"m6id.12xlarge"|"m6id.16xlarge"|"m6id.24xlarge"|"m6id.32xlarge"|"m6id.metal"|"r6id.large"|"r6id.xlarge"|"r6id.2xlarge"|"r6id.4xlarge"|"r6id.8xlarge"|"r6id.12xlarge"|"r6id.16xlarge"|"r6id.24xlarge"|"r6id.32xlarge"|"r6id.metal"|"r6a.large"|"r6a.xlarge"|"r6a.2xlarge"|"r6a.4xlarge"|"r6a.8xlarge"|"r6a.12xlarge"|"r6a.16xlarge"|"r6a.24xlarge"|"r6a.32xlarge"|"r6a.48xlarge"|"r6a.metal"|"p4de.24xlarge"|"u-3tb1.56xlarge"|"u-18tb1.112xlarge"|"u-24tb1.112xlarge"|"trn1.2xlarge"|"trn1.32xlarge"|"hpc6id.32xlarge"|"c6in.large"|"c6in.xlarge"|"c6in.2xlarge"|"c6in.4xlarge"|"c6in.8xlarge"|"c6in.12xlarge"|"c6in.16xlarge"|"c6in.24xlarge"|"c6in.32xlarge"|"m6in.large"|"m6in.xlarge"|"m6in.2xlarge"|"m6in.4xlarge"|"m6in.8xlarge"|"m6in.12xlarge"|"m6in.16xlarge"|"m6in.24xlarge"|"m6in.32xlarge"|"m6idn.large"|"m6idn.xlarge"|"m6idn.2xlarge"|"m6idn.4xlarge"|"m6idn.8xlarge"|"m6idn.12xlarge"|"m6idn.16xlarge"|"m6idn.24xlarge"|"m6idn.32xlarge"|"r6in.large"|"r6in.xlarge"|"r6in.2xlarge"|"r6in.4xlarge"|"r6in.8xlarge"|"r6in.12xlarge"|"r6in.16xlarge"|"r6in.24xlarge"|"r6in.32xlarge"|"r6idn.large"|"r6idn.xlarge"|"r6idn.2xlarge"|"r6idn.4xlarge"|"r6idn.8xlarge"|"r6idn.12xlarge"|"r6idn.16xlarge"|"r6idn.24xlarge"|"r6idn.32xlarge"|"c7g.metal"|"m7g.medium"|"m7g.large"|"m7g.xlarge"|"m7g.2xlarge"|"m7g.4xlarge"|"m7g.8xlarge"|"m7g.12xlarge"|"m7g.16xlarge"|"m7g.metal"|"r7g.medium"|"r7g.large"|"r7g.xlarge"|"r7g.2xlarge"|"r7g.4xlarge"|"r7g.8xlarge"|"r7g.12xlarge"|"r7g.16xlarge"|"r7g.metal"|"c6in.metal"|"m6in.metal"|"m6idn.metal"|"r6in.metal"|"r6idn.metal"|"inf2.xlarge"|"inf2.8xlarge"|"inf2.24xlarge"|"inf2.48xlarge"|"trn1n.32xlarge"|"i4g.large"|"i4g.xlarge"|"i4g.2xlarge"|"i4g.4xlarge"|"i4g.8xlarge"|"i4g.16xlarge"|"hpc7g.4xlarge"|"hpc7g.8xlarge"|"hpc7g.16xlarge"|"c7gn.medium"|"c7gn.large"|"c7gn.xlarge"|"c7gn.2xlarge"|"c7gn.4xlarge"|"c7gn.8xlarge"|"c7gn.12xlarge"|"c7gn.16xlarge"|"p5.48xlarge"|"m7i.large"|"m7i.xlarge"|"m7i.2xlarge"|"m7i.4xlarge"|"m7i.8xlarge"|"m7i.12xlarge"|"m7i.16xlarge"|"m7i.24xlarge"|"m7i.48xlarge"|"m7i-flex.large"|"m7i-flex.xlarge"|"m7i-flex.2xlarge"|"m7i-flex.4xlarge"|"m7i-flex.8xlarge"|"m7a.medium"|"m7a.large"|"m7a.xlarge"|"m7a.2xlarge"|"m7a.4xlarge"|"m7a.8xlarge"|"m7a.12xlarge"|"m7a.16xlarge"|"m7a.24xlarge"|"m7a.32xlarge"|"m7a.48xlarge"|"m7a.metal-48xl"|"hpc7a.12xlarge"|"hpc7a.24xlarge"|"hpc7a.48xlarge"|"hpc7a.96xlarge"|"c7gd.medium"|"c7gd.large"|"c7gd.xlarge"|"c7gd.2xlarge"|"c7gd.4xlarge"|"c7gd.8xlarge"|"c7gd.12xlarge"|"c7gd.16xlarge"|"m7gd.medium"|"m7gd.large"|"m7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      "KeyName": "string",
      "Monitoring": {
        "Enabled": true|false
      },
      "NetworkInterfaces": [
        {
          "AssociatePublicIpAddress": true|false,
          "DeleteOnTermination": true|false,
          "Description": "string",
          "DeviceIndex": integer,
          "Groups": ["string", ...],
          "Ipv6AddressCount": integer,
          "Ipv6Addresses": [
            {
              "Ipv6Address": "string",
              "IsPrimaryIpv6": true|false
            }
            ...
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          "NetworkInterfaceId": "string",
          "PrivateIpAddress": "string",
          "PrivateIpAddresses": [
            {
              "Primary": true|false,
              "PrivateIpAddress": "string"
            }
            ...
          ],
          "SecondaryPrivateIpAddressCount": integer,
          "SubnetId": "string",
          "AssociateCarrierIpAddress": true|false,
          "InterfaceType": "string",
          "NetworkCardIndex": integer,
          "Ipv4Prefixes": [
            {
              "Ipv4Prefix": "string"
            }
            ...
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          "Ipv4PrefixCount": integer,
          "Ipv6Prefixes": [
            {
              "Ipv6Prefix": "string"
            }
            ...
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          "Ipv6PrefixCount": integer,
          "PrimaryIpv6": true|false,
          "EnaSrdSpecification": {
            "EnaSrdEnabled": true|false,
            "EnaSrdUdpSpecification": {
              "EnaSrdUdpEnabled": true|false
            }
          },
          "ConnectionTrackingSpecification": {
            "TcpEstablishedTimeout": integer,
            "UdpStreamTimeout": integer,
            "UdpTimeout": integer
          }
        }
        ...
      ],
      "Placement": {
        "AvailabilityZone": "string",
        "GroupName": "string",
        "Tenancy": "default"|"dedicated"|"host"
      },
      "RamdiskId": "string",
      "SpotPrice": "string",
      "SubnetId": "string",
      "UserData": "string",
      "WeightedCapacity": double,
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              "Value": "string"
            }
            ...
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          "Max": integer
        },
        "MemoryMiB": {
          "Min": integer,
          "Max": integer
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        "CpuManufacturers": ["intel"|"amd"|"amazon-web-services"|"apple", ...],
        "MemoryGiBPerVCpu": {
          "Min": double,
          "Max": double
        },
        "ExcludedInstanceTypes": ["string", ...],
        "InstanceGenerations": ["current"|"previous", ...],
        "SpotMaxPricePercentageOverLowestPrice": integer,
        "OnDemandMaxPricePercentageOverLowestPrice": integer,
        "BareMetal": "included"|"required"|"excluded",
        "BurstablePerformance": "included"|"required"|"excluded",
        "RequireHibernateSupport": true|false,
        "NetworkInterfaceCount": {
          "Min": integer,
          "Max": integer
        },
        "LocalStorage": "included"|"required"|"excluded",
        "LocalStorageTypes": ["hdd"|"ssd", ...],
        "TotalLocalStorageGB": {
          "Min": double,
          "Max": double
        },
        "BaselineEbsBandwidthMbps": {
          "Min": integer,
          "Max": integer
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        "AcceleratorTypes": ["gpu"|"fpga"|"inference", ...],
        "AcceleratorCount": {
          "Min": integer,
          "Max": integer
        },
        "AcceleratorManufacturers": ["amazon-web-services"|"amd"|"nvidia"|"xilinx"|"habana", ...],
        "AcceleratorNames": ["a100"|"inferentia"|"k520"|"k80"|"m60"|"radeon-pro-v520"|"t4"|"vu9p"|"v100"|"a10g"|"h100"|"t4g", ...],
        "AcceleratorTotalMemoryMiB": {
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          "Max": integer
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          "Max": double
        },
        "AllowedInstanceTypes": ["string", ...],
        "MaxSpotPriceAsPercentageOfOptimalOnDemandPrice": integer,
        "BaselinePerformanceFactors": {
          "Cpu": {
            "References": [
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              }
              ...
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          }
        }
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      "SecurityGroups": [
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          "GroupName": "string"
        }
        ...
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    }
    ...
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        "LaunchTemplateName": "string",
        "Version": "string"
      },
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          "SpotPrice": "string",
          "SubnetId": "string",
          "AvailabilityZone": "string",
          "WeightedCapacity": double,
          "Priority": double,
          "InstanceRequirements": {
            "VCpuCount": {
              "Min": integer,
              "Max": integer
            },
            "MemoryMiB": {
              "Min": integer,
              "Max": integer
            },
            "CpuManufacturers": ["intel"|"amd"|"amazon-web-services"|"apple", ...],
            "MemoryGiBPerVCpu": {
              "Min": double,
              "Max": double
            },
            "ExcludedInstanceTypes": ["string", ...],
            "InstanceGenerations": ["current"|"previous", ...],
            "SpotMaxPricePercentageOverLowestPrice": integer,
            "OnDemandMaxPricePercentageOverLowestPrice": integer,
            "BareMetal": "included"|"required"|"excluded",
            "BurstablePerformance": "included"|"required"|"excluded",
            "RequireHibernateSupport": true|false,
            "NetworkInterfaceCount": {
              "Min": integer,
              "Max": integer
            },
            "LocalStorage": "included"|"required"|"excluded",
            "LocalStorageTypes": ["hdd"|"ssd", ...],
            "TotalLocalStorageGB": {
              "Min": double,
              "Max": double
            },
            "BaselineEbsBandwidthMbps": {
              "Min": integer,
              "Max": integer
            },
            "AcceleratorTypes": ["gpu"|"fpga"|"inference", ...],
            "AcceleratorCount": {
              "Min": integer,
              "Max": integer
            },
            "AcceleratorManufacturers": ["amazon-web-services"|"amd"|"nvidia"|"xilinx"|"habana", ...],
            "AcceleratorNames": ["a100"|"inferentia"|"k520"|"k80"|"m60"|"radeon-pro-v520"|"t4"|"vu9p"|"v100"|"a10g"|"h100"|"t4g", ...],
            "AcceleratorTotalMemoryMiB": {
              "Min": integer,
              "Max": integer
            },
            "NetworkBandwidthGbps": {
              "Min": double,
              "Max": double
            },
            "AllowedInstanceTypes": ["string", ...],
            "MaxSpotPriceAsPercentageOfOptimalOnDemandPrice": integer,
            "BaselinePerformanceFactors": {
              "Cpu": {
                "References": [
                  {
                    "InstanceFamily": "string"
                  }
                  ...
                ]
              }
            }
          }
        }
        ...
      ]
    }
    ...
  ],
  "SpotPrice": "string",
  "TargetCapacity": integer,
  "OnDemandTargetCapacity": integer,
  "OnDemandMaxTotalPrice": "string",
  "SpotMaxTotalPrice": "string",
  "TerminateInstancesWithExpiration": true|false,
  "Type": "request"|"maintain"|"instant",
  "ValidFrom": timestamp,
  "ValidUntil": timestamp,
  "ReplaceUnhealthyInstances": true|false,
  "InstanceInterruptionBehavior": "hibernate"|"stop"|"terminate",
  "LoadBalancersConfig": {
    "ClassicLoadBalancersConfig": {
      "ClassicLoadBalancers": [
        {
          "Name": "string"
        }
        ...
      ]
    },
    "TargetGroupsConfig": {
      "TargetGroups": [
        {
          "Arn": "string"
        }
        ...
      ]
    }
  },
  "InstancePoolsToUseCount": integer,
  "Context": "string",
  "TargetCapacityUnitType": "vcpu"|"memory-mib"|"units",
  "TagSpecifications": [
    {
      "ResourceType": "capacity-reservation"|"client-vpn-endpoint"|"customer-gateway"|"carrier-gateway"|"coip-pool"|"dedicated-host"|"dhcp-options"|"egress-only-internet-gateway"|"elastic-ip"|"elastic-gpu"|"export-image-task"|"export-instance-task"|"fleet"|"fpga-image"|"host-reservation"|"image"|"import-image-task"|"import-snapshot-task"|"instance"|"instance-event-window"|"internet-gateway"|"ipam"|"ipam-pool"|"ipam-scope"|"ipv4pool-ec2"|"ipv6pool-ec2"|"key-pair"|"launch-template"|"local-gateway"|"local-gateway-route-table"|"local-gateway-virtual-interface"|"local-gateway-virtual-interface-group"|"local-gateway-route-table-vpc-association"|"local-gateway-route-table-virtual-interface-group-association"|"natgateway"|"network-acl"|"network-interface"|"network-insights-analysis"|"network-insights-path"|"network-insights-access-scope"|"network-insights-access-scope-analysis"|"placement-group"|"prefix-list"|"replace-root-volume-task"|"reserved-instances"|"route-table"|"security-group"|"security-group-rule"|"snapshot"|"spot-fleet-request"|"spot-instances-request"|"subnet"|"subnet-cidr-reservation"|"traffic-mirror-filter"|"traffic-mirror-session"|"traffic-mirror-target"|"transit-gateway"|"transit-gateway-attachment"|"transit-gateway-connect-peer"|"transit-gateway-multicast-domain"|"transit-gateway-policy-table"|"transit-gateway-route-table"|"transit-gateway-route-table-announcement"|"volume"|"vpc"|"vpc-endpoint"|"vpc-endpoint-connection"|"vpc-endpoint-service"|"vpc-endpoint-service-permission"|"vpc-peering-connection"|"vpn-connection"|"vpn-gateway"|"vpc-flow-log"|"capacity-reservation-fleet"|"traffic-mirror-filter-rule"|"vpc-endpoint-connection-device-type"|"verified-access-instance"|"verified-access-group"|"verified-access-endpoint"|"verified-access-policy"|"verified-access-trust-provider"|"vpn-connection-device-type"|"vpc-block-public-access-exclusion"|"ipam-resource-discovery"|"ipam-resource-discovery-association"|"instance-connect-endpoint"|"ipam-external-resource-verification-token",
      "Tags": [
        {
          "Key": "string",
          "Value": "string"
        }
        ...
      ]
    }
    ...
  ]
}

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

• json
• text
• table
• yaml
• yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

• on
• off
• auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

• base64
• raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

Examples

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To request a Spot fleet in the subnet with the lowest price

This example command creates a Spot fleet request with two launch specifications that differ only by subnet. The Spot fleet launches the instances in the specified subnet with the lowest price. If the instances are launched in a default VPC, they receive a public IP address by default. If the instances are launched in a nondefault VPC, they do not receive a public IP address by default.

Note that you can’t specify different subnets from the same Availability Zone in a Spot fleet request.

Command:

aws ec2 request-spot-fleet --spot-fleet-request-config file://config.json

Config.json:

{
  "SpotPrice": "0.04",
  "TargetCapacity": 2,
  "IamFleetRole": "arn:aws:iam::123456789012:role/my-spot-fleet-role",
  "LaunchSpecifications": [
      {
          "ImageId": "ami-1a2b3c4d",
          "KeyName": "my-key-pair",
          "SecurityGroups": [
              {
                  "GroupId": "sg-1a2b3c4d"
              }
          ],
          "InstanceType": "m3.medium",
          "SubnetId": "subnet-1a2b3c4d, subnet-3c4d5e6f",
          "IamInstanceProfile": {
              "Arn": "arn:aws:iam::123456789012:instance-profile/my-iam-role"
          }
      }
  ]
}

Output:

{
  "SpotFleetRequestId": "sfr-73fbd2ce-aa30-494c-8788-1cee4EXAMPLE"
}

To request a Spot fleet in the Availability Zone with the lowest price

This example command creates a Spot fleet request with two launch specifications that differ only by Availability Zone. The Spot fleet launches the instances in the specified Availability Zone with the lowest price. If your account supports EC2-VPC only, Amazon EC2 launches the Spot instances in the default subnet of the Availability Zone. If your account supports EC2-Classic, Amazon EC2 launches the instances in EC2-Classic in the Availability Zone.

Command:

aws ec2 request-spot-fleet --spot-fleet-request-config file://config.json

Config.json:

{
  "SpotPrice": "0.04",
  "TargetCapacity": 2,
  "IamFleetRole": "arn:aws:iam::123456789012:role/my-spot-fleet-role",
  "LaunchSpecifications": [
      {
          "ImageId": "ami-1a2b3c4d",
          "KeyName": "my-key-pair",
          "SecurityGroups": [
              {
                  "GroupId": "sg-1a2b3c4d"
              }
          ],
          "InstanceType": "m3.medium",
          "Placement": {
              "AvailabilityZone": "us-west-2a, us-west-2b"
          },
          "IamInstanceProfile": {
              "Arn": "arn:aws:iam::123456789012:instance-profile/my-iam-role"
          }
      }
  ]
}

To launch Spot instances in a subnet and assign them public IP addresses

This example command assigns public addresses to instances launched in a nondefault VPC. Note that when you specify a network interface, you must include the subnet ID and security group ID using the network interface.

Command:

aws ec2 request-spot-fleet --spot-fleet-request-config file://config.json

Config.json:

{
  "SpotPrice": "0.04",
  "TargetCapacity": 2,
  "IamFleetRole": "arn:aws:iam::123456789012:role/my-spot-fleet-role",
  "LaunchSpecifications": [
      {
          "ImageId": "ami-1a2b3c4d",
          "KeyName": "my-key-pair",
          "InstanceType": "m3.medium",
          "NetworkInterfaces": [
              {
                  "DeviceIndex": 0,
                  "SubnetId": "subnet-1a2b3c4d",
                  "Groups": [ "sg-1a2b3c4d" ],
                  "AssociatePublicIpAddress": true
              }
          ],
          "IamInstanceProfile": {
              "Arn": "arn:aws:iam::880185128111:instance-profile/my-iam-role"
          }
      }
  ]
}

To request a Spot fleet using the diversified allocation strategy

This example command creates a Spot fleet request that launches 30 instances using the diversified allocation strategy. The launch specifications differ by instance type. The Spot fleet distributes the instances across the launch specifications such that there are 10 instances of each type.

Command:

aws ec2 request-spot-fleet --spot-fleet-request-config file://config.json

Config.json:

{
  "SpotPrice": "0.70",
  "TargetCapacity": 30,
  "AllocationStrategy": "diversified",
  "IamFleetRole": "arn:aws:iam::123456789012:role/my-spot-fleet-role",
  "LaunchSpecifications": [
      {
          "ImageId": "ami-1a2b3c4d",
          "InstanceType": "c4.2xlarge",
          "SubnetId": "subnet-1a2b3c4d"
      },
      {
          "ImageId": "ami-1a2b3c4d",
          "InstanceType": "m3.2xlarge",
          "SubnetId": "subnet-1a2b3c4d"
      },
      {
          "ImageId": "ami-1a2b3c4d",
          "InstanceType": "r3.2xlarge",
          "SubnetId": "subnet-1a2b3c4d"
      }
  ]
}

For more information, see Spot Fleet Requests in the Amazon Elastic Compute Cloud User Guide.

Output

SpotFleetRequestId -> (string)

The ID of the Spot Fleet request.