Configuring VM placement group access permissions

Written by

Yandex Cloud

Updated at February 12, 2025

Assigning a role
Assigning multiple roles
Revoking a role

To grant a user, group, or service account access to a VM placement group, assign a role for it.

Assigning a role

Management console

CLI

Terraform

API

In the management console, select the folder hosting your placement group.
Select Compute Cloud.
In the left-hand panel, select Placement groups.
On the Virtual machine placement groups tab, click the name of the group.
Go to the Access bindings tab.
Click Assign bindings.
In the window that opens, select the group, user, or service account you want to grant access to the placement group.
Click Add role and select the required role.
Click Save.

If you do not have the Yandex Cloud CLI yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder through the --folder-name or --folder-id parameter.

See the description of the CLI command for assigning a role for a VM placement group:
```
yc compute placement-group add-access-binding --help
```
Get a list of VM placement groups in the default folder:
```
yc compute placement-group list
```

View a list of roles already assigned for the resource in question:

yc compute placement-group list-access-bindings <placement_group_ID>

Assign the role using this command:
- To a user:
```
yc compute placement-group add-access-binding <placement_group_ID> \
  --user-account-id <user_ID> \
  --role <role>
```
  Where:
  - --user-account-id: User ID. To assign a role to all authenticated users, use the --all-authenticated-users flag.
  - --role: Role to assign.
- To a service account:
```
yc compute placement-group add-access-binding <placement_group_ID> \
  --service-account-id <service_account_ID> \
  --role <role>
```
  Where:
  - --service-account-id: Service account ID.
  - --role: Role to assign.

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you don't have Terraform, install it and configure the Yandex Cloud provider.

To assign a role to access a VM placement group using Terraform:

In the Terraform configuration file, define the parameters of the resources you want to create:
```
resource "yandex_compute_placement_group_iam_binding" "sa-access" {
  placement_group_id = "<placement_group_ID>"
  role               = "<role>"
  members            = ["<subject_type>:<subject_ID>"]
}
```
Where:
- placement_group_id: VM placement group ID.
- role: Role to assign.
- members: List of types and IDs of subjects getting the role. Specify it as userAccount:<user_ID> or serviceAccount:<service_account_ID>.
For more information about the yandex_compute_placement_group_iam_binding resource parameters, see the relevant provider documentation.
Apply the changes:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.
Terraform will create all the required resources. You can check the updates using the management console or this CLI command:
```
yc compute placement-group list-access-bindings <placement_group_ID>
```

To assign a role, use the updateAccessBindings REST API method for the PlacementGroup resource or the PlacementGroupService/UpdateAccessBindings gRPC API call. In the request body, set the action property to ADD and specify the user type and ID under subject.

Assigning multiple roles

Management console

CLI

Terraform

API

In the management console, select the folder hosting your placement group.
Select Compute Cloud.
In the left-hand panel, select Placement groups.
On the Virtual machine placement groups tab, click the name of the group.
Go to the Access bindings tab.
Click Assign bindings.
In the window that opens, select the group, user, or service account you want to grant access to the placement group.
Click Add role and select the required role.
To add another role, click Add role.
Click Save.

If you do not have the Yandex Cloud CLI yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder through the --folder-name or --folder-id parameter.

You can assign multiple roles using the set-access-bindings command.

Alert

The set-access-bindings command completely rewrites access permissions for the resource. All current roles for the resource will be deleted.

Make sure the resource has no roles assigned that you would not want to lose:
```
yc compute placement-group list-access-bindings <placement_group_ID>
```
See the description of the CLI command for assigning roles for a VM placement group:
```
yc compute placement-group set-access-bindings --help
```

Assign roles:

yc compute placement-group set-access-bindings <placement_group_ID> \
  --access-binding role=<role>,subject=<subject_type>:<subject_ID> \
  --access-binding role=<role>,subject=<subject_type>:<subject_ID>

Where:

--access-binding: Parameters for setting access permissions:
- role: Role to assign.
- subject: Type and ID of the subject getting the role.

For example, this command will assign roles to multiple users and a single service account:

yc compute placement-group set-access-bindings my-group \
  --access-binding role=editor,subject=userAccount:gfei8n54hmfh********
  --access-binding role=viewer,subject=userAccount:helj89sfj80a********
  --access-binding role=editor,subject=serviceAccount:ajel6l0jcb9s********

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you don't have Terraform, install it and configure the Yandex Cloud provider.

To assign multiple roles for a VM placement group using Terraform:

In the Terraform configuration file, define the parameters of the resources you want to create:
```
resource "yandex_compute_placement_group_iam_binding" "role1" {
  placement_group_id = "<placement_group_ID>"
  role               = "<role_1>"
  members            = ["<subject_type>:<subject_ID>"]
}

resource "yandex_compute_placement_group_iam_binding" "role2" {
  placement_group_id = "<placement_group_ID>"
  role               = "<role_2>"
  members            = ["<subject_type>:<subject_ID>"]
}
```
Where:
- placement_group_id: VM placement group ID.
- role: Role to assign.
- members: List of types and IDs of subjects getting the role. Specify it as userAccount:<user_ID> or serviceAccount:<service_account_ID>.
For more information about the yandex_compute_placement_group_iam_binding resource parameters, see the relevant provider documentation.
Apply the changes:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.
Terraform will create all the required resources. You can check the updates using the management console or this CLI command:
```
yc compute placement-group list-access-bindings <placement_group_ID>
```

To assign roles for a placement group, use the setAccessBindings REST API method for the PlacementGroup resource or the PlacementGroupService/SetAccessBindings gRPC API call.

Alert

The setAccessBindings method and the PlacementGroupService/SetAccessBindings call completely overwrite access permissions for the resource. All current roles for the resource will be deleted.

Revoking a role

Management console

CLI

Terraform

API

In the management console, select the folder hosting your placement group.
Select Compute Cloud.
In the left-hand panel, select Placement groups.
On the Virtual machine placement groups tab, click the name of the group.
Go to the Access bindings tab.
In the line with the user in question, click and select Edit roles.
Next to the role, click .
Click Save.

If you do not have the Yandex Cloud CLI yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder through the --folder-name or --folder-id parameter.

See the description of the CLI command for revoking a role for a placement group:
```
yc compute placement-group remove-access-binding --help
```

View the roles and assignees for the resource:

yc compute placement-group list-access-bindings <placement_group_ID>

To revoke access permissions, run this command:
```
yc compute placement-group remove-access-binding <placement_group_ID> \
  --role=<role> \
  --subject=<subject_type>:<subject_ID> \
```
Where:
- --role: ID of the role to revoke.
- --subject: Type and ID of the subject to revoke the role from.
For example, this command revokes the viewer role for the placement group from a user with the ajel6l0jcb9s******** ID:
```
yc compute placement-group remove-access-binding my-group \
  --role viewer \
  --subject userAccount:ajel6l0jcb9s********
```

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you don't have Terraform, install it and configure the Yandex Cloud provider.

To revoke a role assigned for a VM placement group using Terraform:

Open the Terraform configuration file and delete the section specifying the role:

resource "yandex_compute_placement_group_iam_binding" "sa-access" {
  placement_group_id = "<placement_group_ID>"
  role               = "<role>"
  members            = ["<subject_type>:<subject_ID>"]
}

Apply the changes:
1. In the terminal, change to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using the command:
```
terraform validate
```
  If the configuration is correct, the following message is returned:
```
Success! The configuration is valid.
```
3. Run the command:
```
terraform plan
```
  The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.
4. Apply the configuration changes:
```
terraform apply
```
5. Confirm the changes: type yes in the terminal and press Enter.
You can check the updates using the management console or this CLI command:
```
yc compute placement-group list-access-bindings <placement_group_ID>
```

To revoke a role, use the updateAccessBindings REST API method for the PlacementGroup resource or the PlacementGroupService/UpdateAccessBindings gRPC API call. In the request body, set the action property to REMOVE and specify the user type and ID under subject.

Configuring VM placement group access permissions

Assigning a roleAssigning a role

Assigning multiple rolesAssigning multiple roles

Revoking a roleRevoking a role

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Assigning a role

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Revoking a role