LaunchTemplateOverrides - Amazon Elastic Compute Cloud

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LaunchTemplateOverrides

Describes overrides for a launch template.

AvailabilityZone (request), availabilityZone (response)

The Availability Zone in which to launch the instances.

Type: String

Required: No

InstanceRequirements (request), instanceRequirements (response)

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.

Type: InstanceRequirements object

Required: No

InstanceType (request), instanceType (response)

The instance type.

Type: String

Required: No

Priority (request), priority (response)

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.

Type: Double

Required: No

SpotPrice (request), spotPrice (response)

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.

Important

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

Type: String

Required: No

SubnetId (request), subnetId (response)

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

Type: String

Required: No

WeightedCapacity (request), weightedCapacity (response)

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.

Type: Double

Required: No

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LaunchTemplateOverrides

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