All Products
Search
Document Center

Bastionhost:CreateHostShareKey

Last Updated:Aug 11, 2026

The shared key feature of Bastionhost allows you to store private keys used for host logon in Bastionhost. After being stored, a private key can be shared across multiple host accounts to improve host account management efficiency.

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

yundun-bastionhost:CreateHostShareKey

create

*Instance

acs:yundun-bastionhost:{#regionId}:{#accountId}:instance/{#InstanceId}

None None

Request parameters

Parameter

Type

Required

Description

Example

InstanceId

string

Yes

The instance ID of the bastion host.

Note

You can call the DescribeInstances operation to query the instance ID.

bastionhost-cn-st220aw****

RegionId

string

No

The region ID of the bastion host.

Note

For the mapping between region IDs and region names, see Regions and zones.

cn-hangzhou

HostShareKeyName

string

Yes

The name of the host shared key to create. Maximum length: 128 characters.

name

PrivateKey

string

Yes

The private key (Base64-encoded string).

Note

RSA keys and Ed25519 keys generated by using the ssh-keygen command are supported.

LBYTnpR3Jmd2hMbmNBMGRmdWV2RW5oVXpCUmp3VkM0dGoKa0J2QlNRSHU2bytrMFBudlZvdlMzdGlBbXo5NkRzdUJDcDFFZVFJREFRQUJBb0lCQUNPZGNjK0lGUnNJd3VkYQpjT3VOSm5SK1BxWnlNZGVIaWFOcDc4SUxFd2NLZDNMZmlUWlYxc0d2Q21uTW0vQ3ZiS2NrZ0U1VjZxQVExRGZQCnI******

PassPhrase

string

No

The passphrase of the private key (Base64-encoded string).

MTIzN******

No

The project ID.

Response elements

Element

Type

Description

Example

object

Schema of Response

RequestId

string

The request ID. Alibaba Cloud generates a unique ID for each request. You can use the ID to troubleshoot issues.

EC9BF0F4-8983-491A-BC8C-1B4DD94976DE

HostShareKeyId

integer

The ID of the host shared key.

10235

Examples

Success response

JSON format

{
  "RequestId": "EC9BF0F4-8983-491A-BC8C-1B4DD94976DE",
  "HostShareKeyId": 10235
}

Error codes

HTTP status code

Error code

Error message

Description

400 HostShareKeyAlreadyExists The host share key already exists.
400 InvalidParameter The argument is invalid. The argument is invalid.
500 InternalError An unknown error occurred. An unknown error occurred.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.