CreateInstanceRequest

The default OpsWorks Stacks agent version. You have the following options:

A custom AMI ID to be used to create the instance. The AMI should be based on one of the supported operating systems. For more information, see Using Custom AMIs.

The instance architecture. The default option is x86_64. Instance types do not necessarily support both architectures. For a list of the architectures that are supported by the different instance types, see Instance Families and Types.

For load-based or time-based instances, the type. Windows stacks can use only time-based instances.

The instance Availability Zone. For more information, see Regions and Endpoints.

An array of BlockDeviceMapping objects that specify the instance's block devices. For more information, see Block Device Mapping. Note that block device mappings are not supported for custom AMIs.

Whether to create an Amazon EBS-optimized instance.

The instance host name. The following are character limits for instance host names.

Whether to install operating system and package updates when the instance boots. The default value is true. To control when updates are installed, set this value to false. You must then update your instances manually by using CreateDeployment to run the update_dependencies stack command or by manually running yum (Amazon Linux) or apt-get (Ubuntu) on the instances.

The instance type, such as t2.micro. For a list of supported instance types, open the stack in the console, choose Instances, and choose + Instance. The Size list contains the currently supported types. For more information, see Instance Families and Types. The parameter values that you use to specify the various types are in the API Name column of the Available Instance Types table.

An array that contains the instance's layer IDs.

The instance's operating system, which must be set to one of the following.

The instance root device type. For more information, see Storage for the Root Device.

The instance's Amazon EC2 key-pair name.

The stack ID.

The ID of the instance's subnet. If the stack is running in a VPC, you can use this parameter to override the stack's default subnet ID value and direct OpsWorks Stacks to launch the instance in a different subnet.

The instance's tenancy option. The default option is no tenancy, or if the instance is running in a VPC, inherit tenancy settings from the VPC. The following are valid values for this parameter: dedicated, default, or host. Because there are costs associated with changes in tenancy options, we recommend that you research tenancy options before choosing them for your instances. For more information about dedicated hosts, see Dedicated Hosts Overview and Amazon EC2 Dedicated Hosts. For more information about dedicated instances, see Dedicated Instances and Amazon EC2 Dedicated Instances.

The instance's virtualization type, paravirtual or hvm.