POST /#Action=ModifyHosts
Modify the auto-placement setting of a Dedicated Host. When auto-placement is enabled, any instances that you launch with a tenancy of host but without a specific host ID are placed onto any available Dedicated Host in your account that has auto-placement enabled. When auto-placement is disabled, you need to provide a host ID to have the instance launch onto a specific host. If no host ID is provided, the instance is launched onto a suitable host with auto-placement enabled.
You can also use this API action to modify a Dedicated Host to support either multiple instance types in an instance family, or to support a specific instance type only.
Servers
- https://ec2.{region}.amazonaws.com
- https://ec2.amazonaws.com
- https://ec2.{region}.amazonaws.com.cn
Request headers
| Name | Type | Required | Description |
|---|---|---|---|
X-Amz-Content-Sha256 |
String | No | |
X-Amz-Credential |
String | No | |
Content-Type |
String | Yes |
The media type of the request body.
Default value: "text/xml" |
X-Amz-Date |
String | No | |
X-Amz-Algorithm |
String | No | |
X-Amz-SignedHeaders |
String | No | |
X-Amz-Security-Token |
String | No | |
X-Amz-Signature |
String | No |
Query parameters
| Name | Type | Required | Description |
|---|---|---|---|
Version |
String | Yes |
Possible values:
|
Action |
String | Yes |
Possible values:
|
Request body fields
| Name | Type | Required | Description |
|---|---|---|---|
HostIds[] |
Array | Yes |
The IDs of the Dedicated Hosts to modify. |
InstanceFamily |
String | No |
Specifies the instance family to be supported by the Dedicated Host. Specify this parameter to modify a Dedicated Host to support multiple instance types within its current instance family. If you want to modify a Dedicated Host to support a specific instance type only, omit this parameter and specify InstanceType instead. You cannot specify InstanceFamily and InstanceType in the same request. |
HostMaintenance |
String | No |
Indicates whether to enable or disable host maintenance for the Dedicated Host. For more information, see Host maintenance in the Amazon EC2 User Guide. Possible values:
|
AutoPlacement |
String | No |
Specify whether to enable or disable auto-placement. Possible values:
|
InstanceType |
String | No |
Specifies the instance type to be supported by the Dedicated Host. Specify this parameter to modify a Dedicated Host to support only a specific instance type. If you want to modify a Dedicated Host to support multiple instance types in its current instance family, omit this parameter and specify InstanceFamily instead. You cannot specify InstanceType and InstanceFamily in the same request. |
HostRecovery |
String | No |
Indicates whether to enable or disable host recovery for the Dedicated Host. For more information, see Host recovery in the Amazon EC2 User Guide. Possible values:
|
How to start integrating
- Add HTTP Task to your workflow definition.
- Search for the API you want to integrate with and click on the name.
- This loads the API reference documentation and prepares the Http request settings.
- Click Test request to test run your request to the API and see the API's response.