AWSEC2LaunchTemplateOverrides

Objective-C

@interface AWSEC2LaunchTemplateOverrides

Swift

class AWSEC2LaunchTemplateOverrides

Describes overrides for a launch template.

  • The Availability Zone in which to launch the instances.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSString *_Nullable availabilityZone;

    Swift

    var availabilityZone: String? { get set }

  • 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.

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

    Declaration

    Objective-C

    @property (nonatomic, strong) AWSEC2InstanceRequirements *_Nullable instanceRequirements;

    Swift

    var instanceRequirements: AWSEC2InstanceRequirements? { get set }

  • The instance type.

    Declaration

    Objective-C

    @property (nonatomic) AWSEC2InstanceType instanceType;

    Swift

    var instanceType: AWSEC2InstanceType { get set }

  • 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.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable priority;

    Swift

    var priority: NSNumber? { get set }

  • 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.

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

    Declaration

    Objective-C

    @property (nonatomic, strong) NSString *_Nullable spotPrice;

    Swift

    var spotPrice: String? { get set }

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

    Declaration

    Objective-C

    @property (nonatomic, strong) NSString *_Nullable subnetId;

    Swift

    var subnetId: String? { get set }

  • The number of units provided by the specified instance type.

    When specifying weights, the price used in the lowest-price and price-capacity-optimized 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.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable weightedCapacity;

    Swift

    var weightedCapacity: NSNumber? { get set }