This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html). # AWS::EC2::CapacityReservationFleet InstanceTypeSpecification Specifies information about an instance type to use in a Capacity Reservation Fleet. `InstanceTypeSpecification` is a property of the [ AWS::EC2::CapacityReservationFleet](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-capacityreservationfleet.html) resource. ## Syntax To declare this entity in your Amazon CloudFormation template, use the following syntax: ### JSON ``` { "[AvailabilityZone](#cfn-ec2-capacityreservationfleet-instancetypespecification-availabilityzone)" : String, "[AvailabilityZoneId](#cfn-ec2-capacityreservationfleet-instancetypespecification-availabilityzoneid)" : String, "[EbsOptimized](#cfn-ec2-capacityreservationfleet-instancetypespecification-ebsoptimized)" : Boolean, "[InstancePlatform](#cfn-ec2-capacityreservationfleet-instancetypespecification-instanceplatform)" : String, "[InstanceType](#cfn-ec2-capacityreservationfleet-instancetypespecification-instancetype)" : String, "[Priority](#cfn-ec2-capacityreservationfleet-instancetypespecification-priority)" : Integer, "[Weight](#cfn-ec2-capacityreservationfleet-instancetypespecification-weight)" : Number } ``` ### YAML ``` [AvailabilityZone](#cfn-ec2-capacityreservationfleet-instancetypespecification-availabilityzone): String [AvailabilityZoneId](#cfn-ec2-capacityreservationfleet-instancetypespecification-availabilityzoneid): String [EbsOptimized](#cfn-ec2-capacityreservationfleet-instancetypespecification-ebsoptimized): Boolean [InstancePlatform](#cfn-ec2-capacityreservationfleet-instancetypespecification-instanceplatform): String [InstanceType](#cfn-ec2-capacityreservationfleet-instancetypespecification-instancetype): String [Priority](#cfn-ec2-capacityreservationfleet-instancetypespecification-priority): Integer [Weight](#cfn-ec2-capacityreservationfleet-instancetypespecification-weight): Number ``` ## Properties `AvailabilityZone` The Availability Zone in which the Capacity Reservation Fleet reserves the capacity. A Capacity Reservation Fleet can't span Availability Zones. All instance type specifications that you specify for the Fleet must use the same Availability Zone. *Required*: No *Type*: String *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `AvailabilityZoneId` The ID of the Availability Zone in which the Capacity Reservation Fleet reserves the capacity. A Capacity Reservation Fleet can't span Availability Zones. All instance type specifications that you specify for the Fleet must use the same Availability Zone. *Required*: No *Type*: String *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `EbsOptimized` Indicates whether the Capacity Reservation Fleet supports EBS-optimized instances types. This optimization provides dedicated throughput to Amazon EBS and an optimized configuration stack to provide optimal I/O performance. This optimization isn't available with all instance types. Additional usage charges apply when using EBS-optimized instance types. *Required*: No *Type*: Boolean *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `InstancePlatform` The type of operating system for which the Capacity Reservation Fleet reserves capacity. *Required*: No *Type*: String *Allowed values*: `Linux/UNIX | Red Hat Enterprise Linux | SUSE Linux | Windows | Windows with SQL Server | Windows with SQL Server Enterprise | Windows with SQL Server Standard | Windows with SQL Server Web | Linux with SQL Server Standard | Linux with SQL Server Web | Linux with SQL Server Enterprise | RHEL with SQL Server Standard | RHEL with SQL Server Enterprise | RHEL with SQL Server Web | RHEL with HA | RHEL with HA and SQL Server Standard | RHEL with HA and SQL Server Enterprise | Ubuntu Pro` *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `InstanceType` The instance type for which the Capacity Reservation Fleet reserves capacity. *Required*: No *Type*: String *Allowed values*: `a1.medium | a1.large | a1.xlarge | a1.2xlarge | a1.4xlarge | a1.metal | c1.medium | c1.xlarge | c3.large | c3.xlarge | c3.2xlarge | c3.4xlarge | c3.8xlarge | c4.large | c4.xlarge | c4.2xlarge | c4.4xlarge | c4.8xlarge | c5.large | c5.xlarge | c5.2xlarge | c5.4xlarge | c5.9xlarge | c5.12xlarge | c5.18xlarge | c5.24xlarge | c5.metal | c5a.large | c5a.xlarge | c5a.2xlarge | c5a.4xlarge | c5a.8xlarge | c5a.12xlarge | c5a.16xlarge | c5a.24xlarge | c5ad.large | c5ad.xlarge | c5ad.2xlarge | c5ad.4xlarge | c5ad.8xlarge | c5ad.12xlarge | c5ad.16xlarge | c5ad.24xlarge | c5d.large | c5d.xlarge | c5d.2xlarge | c5d.4xlarge | c5d.9xlarge | c5d.12xlarge | c5d.18xlarge | c5d.24xlarge | c5d.metal | c5n.large | c5n.xlarge | c5n.2xlarge | c5n.4xlarge | c5n.9xlarge | c5n.18xlarge | c5n.metal | c6g.medium | c6g.large | c6g.xlarge | c6g.2xlarge | c6g.4xlarge | c6g.8xlarge | c6g.12xlarge | c6g.16xlarge | c6g.metal | c6gd.medium | c6gd.large | c6gd.xlarge | c6gd.2xlarge | c6gd.4xlarge | c6gd.8xlarge | c6gd.12xlarge | c6gd.16xlarge | c6gd.metal | c6gn.medium | c6gn.large | c6gn.xlarge | c6gn.2xlarge | c6gn.4xlarge | c6gn.8xlarge | c6gn.12xlarge | c6gn.16xlarge | c6i.large | c6i.xlarge | c6i.2xlarge | c6i.4xlarge | c6i.8xlarge | c6i.12xlarge | c6i.16xlarge | c6i.24xlarge | c6i.32xlarge | c6i.metal | cc1.4xlarge | cc2.8xlarge | cg1.4xlarge | cr1.8xlarge | d2.xlarge | d2.2xlarge | d2.4xlarge | d2.8xlarge | d3.xlarge | d3.2xlarge | d3.4xlarge | d3.8xlarge | d3en.xlarge | d3en.2xlarge | d3en.4xlarge | d3en.6xlarge | d3en.8xlarge | d3en.12xlarge | dl1.24xlarge | f1.2xlarge | f1.4xlarge | f1.16xlarge | g2.2xlarge | g2.8xlarge | g3.4xlarge | g3.8xlarge | g3.16xlarge | g3s.xlarge | g4ad.xlarge | g4ad.2xlarge | g4ad.4xlarge | g4ad.8xlarge | g4ad.16xlarge | g4dn.xlarge | g4dn.2xlarge | g4dn.4xlarge | g4dn.8xlarge | g4dn.12xlarge | g4dn.16xlarge | g4dn.metal | g5.xlarge | g5.2xlarge | g5.4xlarge | g5.8xlarge | g5.12xlarge | g5.16xlarge | g5.24xlarge | g5.48xlarge | g5g.xlarge | g5g.2xlarge | g5g.4xlarge | g5g.8xlarge | g5g.16xlarge | g5g.metal | hi1.4xlarge | hpc6a.48xlarge | hs1.8xlarge | h1.2xlarge | h1.4xlarge | h1.8xlarge | h1.16xlarge | i2.xlarge | i2.2xlarge | i2.4xlarge | i2.8xlarge | i3.large | i3.xlarge | i3.2xlarge | i3.4xlarge | i3.8xlarge | i3.16xlarge | i3.metal | i3en.large | i3en.xlarge | i3en.2xlarge | i3en.3xlarge | i3en.6xlarge | i3en.12xlarge | i3en.24xlarge | i3en.metal | im4gn.large | im4gn.xlarge | im4gn.2xlarge | im4gn.4xlarge | im4gn.8xlarge | im4gn.16xlarge | inf1.xlarge | inf1.2xlarge | inf1.6xlarge | inf1.24xlarge | is4gen.medium | is4gen.large | is4gen.xlarge | is4gen.2xlarge | is4gen.4xlarge | is4gen.8xlarge | m1.small | m1.medium | m1.large | m1.xlarge | m2.xlarge | m2.2xlarge | m2.4xlarge | m3.medium | m3.large | m3.xlarge | m3.2xlarge | m4.large | m4.xlarge | m4.2xlarge | m4.4xlarge | m4.10xlarge | m4.16xlarge | m5.large | m5.xlarge | m5.2xlarge | m5.4xlarge | m5.8xlarge | m5.12xlarge | m5.16xlarge | m5.24xlarge | m5.metal | m5a.large | m5a.xlarge | m5a.2xlarge | m5a.4xlarge | m5a.8xlarge | m5a.12xlarge | m5a.16xlarge | m5a.24xlarge | m5ad.large | m5ad.xlarge | m5ad.2xlarge | m5ad.4xlarge | m5ad.8xlarge | m5ad.12xlarge | m5ad.16xlarge | m5ad.24xlarge | m5d.large | m5d.xlarge | m5d.2xlarge | m5d.4xlarge | m5d.8xlarge | m5d.12xlarge | m5d.16xlarge | m5d.24xlarge | m5d.metal | m5dn.large | m5dn.xlarge | m5dn.2xlarge | m5dn.4xlarge | m5dn.8xlarge | m5dn.12xlarge | m5dn.16xlarge | m5dn.24xlarge | m5dn.metal | m5n.large | m5n.xlarge | m5n.2xlarge | m5n.4xlarge | m5n.8xlarge | m5n.12xlarge | m5n.16xlarge | m5n.24xlarge | m5n.metal | m5zn.large | m5zn.xlarge | m5zn.2xlarge | m5zn.3xlarge | m5zn.6xlarge | m5zn.12xlarge | m5zn.metal | m6a.large | m6a.xlarge | m6a.2xlarge | m6a.4xlarge | m6a.8xlarge | m6a.12xlarge | m6a.16xlarge | m6a.24xlarge | m6a.32xlarge | m6a.48xlarge | m6g.metal | m6g.medium | m6g.large | m6g.xlarge | m6g.2xlarge | m6g.4xlarge | m6g.8xlarge | m6g.12xlarge | m6g.16xlarge | m6gd.metal | m6gd.medium | m6gd.large | m6gd.xlarge | m6gd.2xlarge | m6gd.4xlarge | m6gd.8xlarge | m6gd.12xlarge | m6gd.16xlarge | m6i.large | m6i.xlarge | m6i.2xlarge | m6i.4xlarge | m6i.8xlarge | m6i.12xlarge | m6i.16xlarge | m6i.24xlarge | m6i.32xlarge | m6i.metal | mac1.metal | p2.xlarge | p2.8xlarge | p2.16xlarge | p3.2xlarge | p3.8xlarge | p3.16xlarge | p3dn.24xlarge | p4d.24xlarge | r3.large | r3.xlarge | r3.2xlarge | r3.4xlarge | r3.8xlarge | r4.large | r4.xlarge | r4.2xlarge | r4.4xlarge | r4.8xlarge | r4.16xlarge | r5.large | r5.xlarge | r5.2xlarge | r5.4xlarge | r5.8xlarge | r5.12xlarge | r5.16xlarge | r5.24xlarge | r5.metal | r5a.large | r5a.xlarge | r5a.2xlarge | r5a.4xlarge | r5a.8xlarge | r5a.12xlarge | r5a.16xlarge | r5a.24xlarge | r5ad.large | r5ad.xlarge | r5ad.2xlarge | r5ad.4xlarge | r5ad.8xlarge | r5ad.12xlarge | r5ad.16xlarge | r5ad.24xlarge | r5b.large | r5b.xlarge | r5b.2xlarge | r5b.4xlarge | r5b.8xlarge | r5b.12xlarge | r5b.16xlarge | r5b.24xlarge | r5b.metal | r5d.large | r5d.xlarge | r5d.2xlarge | r5d.4xlarge | 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 | m7gd.xlarge | m7gd.2xlarge | m7gd.4xlarge | m7gd.8xlarge | m7gd.12xlarge | m7gd.16xlarge | r7gd.medium | r7gd.large | r7gd.xlarge | r7gd.2xlarge | r7gd.4xlarge | r7gd.8xlarge | r7gd.12xlarge | r7gd.16xlarge | r7a.medium | r7a.large | r7a.xlarge | r7a.2xlarge | r7a.4xlarge | r7a.8xlarge | r7a.12xlarge | r7a.16xlarge | r7a.24xlarge | r7a.32xlarge | r7a.48xlarge | c7i.large | c7i.xlarge | c7i.2xlarge | c7i.4xlarge | c7i.8xlarge | c7i.12xlarge | c7i.16xlarge | c7i.24xlarge | c7i.48xlarge | mac2-m2pro.metal | r7iz.large | r7iz.xlarge | r7iz.2xlarge | r7iz.4xlarge | r7iz.8xlarge | r7iz.12xlarge | r7iz.16xlarge | r7iz.32xlarge | c7a.medium | c7a.large | c7a.xlarge | c7a.2xlarge | c7a.4xlarge | c7a.8xlarge | c7a.12xlarge | c7a.16xlarge | c7a.24xlarge | c7a.32xlarge | c7a.48xlarge | c7a.metal-48xl | r7a.metal-48xl | r7i.large | r7i.xlarge | r7i.2xlarge | r7i.4xlarge | r7i.8xlarge | r7i.12xlarge | r7i.16xlarge | r7i.24xlarge | r7i.48xlarge | dl2q.24xlarge | mac2-m2.metal | i4i.12xlarge | i4i.24xlarge | c7i.metal-24xl | c7i.metal-48xl | m7i.metal-24xl | m7i.metal-48xl | r7i.metal-24xl | r7i.metal-48xl | r7iz.metal-16xl | r7iz.metal-32xl | c7gd.metal | m7gd.metal | r7gd.metal | g6.xlarge | g6.2xlarge | g6.4xlarge | g6.8xlarge | g6.12xlarge | g6.16xlarge | g6.24xlarge | g6.48xlarge | gr6.4xlarge | gr6.8xlarge | c7i-flex.large | c7i-flex.xlarge | c7i-flex.2xlarge | c7i-flex.4xlarge | c7i-flex.8xlarge | u7i-12tb.224xlarge | u7in-16tb.224xlarge | u7in-24tb.224xlarge | u7in-32tb.224xlarge | u7ib-12tb.224xlarge | c7gn.metal | r8g.medium | r8g.large | r8g.xlarge | r8g.2xlarge | r8g.4xlarge | r8g.8xlarge | r8g.12xlarge | r8g.16xlarge | r8g.24xlarge | r8g.48xlarge | r8g.metal-24xl | r8g.metal-48xl | mac2-m1ultra.metal | g6e.xlarge | g6e.2xlarge | g6e.4xlarge | g6e.8xlarge | g6e.12xlarge | g6e.16xlarge | g6e.24xlarge | g6e.48xlarge | c8g.medium | c8g.large | c8g.xlarge | c8g.2xlarge | c8g.4xlarge | c8g.8xlarge | c8g.12xlarge | c8g.16xlarge | c8g.24xlarge | c8g.48xlarge | c8g.metal-24xl | c8g.metal-48xl | m8g.medium | m8g.large | m8g.xlarge | m8g.2xlarge | m8g.4xlarge | m8g.8xlarge | m8g.12xlarge | m8g.16xlarge | m8g.24xlarge | m8g.48xlarge | m8g.metal-24xl | m8g.metal-48xl | x8g.medium | x8g.large | x8g.xlarge | x8g.2xlarge | x8g.4xlarge | x8g.8xlarge | x8g.12xlarge | x8g.16xlarge | x8g.24xlarge | x8g.48xlarge | x8g.metal-24xl | x8g.metal-48xl | i7ie.large | i7ie.xlarge | i7ie.2xlarge | i7ie.3xlarge | i7ie.6xlarge | i7ie.12xlarge | i7ie.18xlarge | i7ie.24xlarge | i7ie.48xlarge | i8g.large | i8g.xlarge | i8g.2xlarge | i8g.4xlarge | i8g.8xlarge | i8g.12xlarge | i8g.16xlarge | i8g.24xlarge | i8g.metal-24xl | u7i-6tb.112xlarge | u7i-8tb.112xlarge | u7inh-32tb.480xlarge | p5e.48xlarge | p5en.48xlarge | f2.12xlarge | f2.48xlarge | trn2.48xlarge | c7i-flex.12xlarge | c7i-flex.16xlarge | m7i-flex.12xlarge | m7i-flex.16xlarge | i7ie.metal-24xl | i7ie.metal-48xl | i8g.48xlarge | c8gd.medium | c8gd.large | c8gd.xlarge | c8gd.2xlarge | c8gd.4xlarge | c8gd.8xlarge | c8gd.12xlarge | c8gd.16xlarge | c8gd.24xlarge | c8gd.48xlarge | c8gd.metal-24xl | c8gd.metal-48xl | i7i.large | i7i.xlarge | i7i.2xlarge | i7i.4xlarge | i7i.8xlarge | i7i.12xlarge | i7i.16xlarge | i7i.24xlarge | i7i.48xlarge | i7i.metal-24xl | i7i.metal-48xl | p6-b200.48xlarge | m8gd.medium | m8gd.large | m8gd.xlarge | m8gd.2xlarge | m8gd.4xlarge | m8gd.8xlarge | m8gd.12xlarge | m8gd.16xlarge | m8gd.24xlarge | m8gd.48xlarge | m8gd.metal-24xl | m8gd.metal-48xl | r8gd.medium | r8gd.large | r8gd.xlarge | r8gd.2xlarge | r8gd.4xlarge | r8gd.8xlarge | r8gd.12xlarge | r8gd.16xlarge | r8gd.24xlarge | r8gd.48xlarge | r8gd.metal-24xl | r8gd.metal-48xl | c8gn.medium | c8gn.large | c8gn.xlarge | c8gn.2xlarge | c8gn.4xlarge | c8gn.8xlarge | c8gn.12xlarge | c8gn.16xlarge | c8gn.24xlarge | c8gn.48xlarge | c8gn.metal-24xl | c8gn.metal-48xl | f2.6xlarge | p6e-gb200.36xlarge | g6f.large | g6f.xlarge | g6f.2xlarge | g6f.4xlarge | gr6f.4xlarge | p5.4xlarge | r8i.large | r8i.xlarge | r8i.2xlarge | r8i.4xlarge | r8i.8xlarge | r8i.12xlarge | r8i.16xlarge | r8i.24xlarge | r8i.32xlarge | r8i.48xlarge | r8i.96xlarge | r8i.metal-48xl | r8i.metal-96xl | r8i-flex.large | r8i-flex.xlarge | r8i-flex.2xlarge | r8i-flex.4xlarge | r8i-flex.8xlarge | r8i-flex.12xlarge | r8i-flex.16xlarge` *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `Priority` The priority to assign to the instance type. This value is used to determine which of the instance types specified for the Fleet should be prioritized for use. A lower value indicates a high priority. For more information, see [Instance type priority](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/crfleet-concepts.html#instance-priority) in the *Amazon EC2 User Guide*. *Required*: No *Type*: Integer *Minimum*: `0` *Maximum*: `999` *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) `Weight` The number of capacity units provided by the specified instance type. This value, together with the total target capacity that you specify for the Fleet determine the number of instances for which the Fleet reserves capacity. Both values are based on units that make sense for your workload. For more information, see [Total target capacity](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/crfleet-concepts.html#target-capacity) in the Amazon EC2 User Guide. Valid Range: Minimum value of `0.001`. Maximum value of `99.999`. *Required*: No *Type*: Number *Update requires*: [Replacement](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)