Configuring disk snapshot access permissions

Written by

Yandex Cloud

Updated at May 26, 2025

Assigning a role
Assigning multiple roles
Revoking a role

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

Assigning a role

Management console

CLI

Terraform

API

In the management console, select the folder the disk snapshot belongs to.
Select Compute Cloud.
In the left-hand panel, select Snapshots.
Select the disk snapshot from the list.
Go to the Access bindings tab.
Click Assign roles.
In the window that opens, select the group, user, or service account you want to grant access to the disk snapshot.
Click Add role and select the required roles.
Click Save.

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

By default, the CLI uses the folder specified when creating the profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also set a different folder for any specific command using the --folder-name or --folder-id parameter.

See the description of the CLI command for assigning a role for a disk snapshot:
```
yc compute snapshot add-access-binding --help
```

Get a list of snapshots in the default folder:

yc compute snapshot list

Result:

+----------------------+-----------------+----------------------+--------+----------------------------+
|          ID          |       NAME      |     PRODUCT IDS      | STATUS |        DESCRIPTION         |
+----------------------+-----------------+----------------------+--------+----------------------------+
| fd8rlt1u2rf0l******* | first-snapshot  | f2ecl5vhsftd******** | READY  | my first snapshot via CLI  |
| fhmolt1u2rf0******** | second-snapshot | f2eclmol5lps******** | READY  | my second snapshot via CLI |
+----------------------+-----------------+----------------------+--------+----------------------------+

View a list of roles already assigned for the resource in question:
```
yc compute snapshot list-access-bindings <snapshot_ID>
```

Assign the role using this command:

To a user:

yc compute snapshot add-access-binding <snapshot_ID> \
  --user-account-id <user_ID> \
  --role <role>

Where:

--user-account-id: User ID.
--role: Role to assign.

To a service account:

yc compute snapshot add-access-binding <snapshot_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 its mirror.

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

To assign a role for a snapshot using Terraform:

In the Terraform configuration file, define the parameters of the resources you want to create:
```
resource "yandex_compute_snapshot_iam_binding" "sa-access" {
  snapshot_id = "<snapshot_ID>"
  role        = "<role>"
  members     = ["<subject_type>:<subject_ID>","<subject_type>:<subject_ID>"]
}
```
Where:
- snapshot_id: Snapshot 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_snapshot_iam_binding resource parameters, see the relevant provider documentation.
Create the resources:
1. In the terminal, navigate to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using this command:
```
terraform validate
```
  If the configuration is correct, you will get this message:
```
Success! The configuration is valid.
```
3. Run this command:
```
terraform plan
```
  You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.
4. Apply the changes:
```
terraform apply
```
5. Confirm the changes by typing yes in the terminal and pressing Enter.
Terraform will create all the required resources. You can check the new resources using the management console or this CLI command:
```
yc compute snapshot list-access-bindings <snapshot_ID>
```

Use the updateAccessBindings REST API method for the Snapshot resource or the SnapshotService/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 the disk snapshot belongs to.
Select Compute Cloud.
In the left-hand panel, select Snapshots.
Select the disk snapshot from the list.
Go to the Access bindings tab.
Click Assign roles.
In the window that opens, select the group, user, or service account you want to grant access to the disk snapshot.
Click Add role and select the required roles.
To add another role, click Add role.
Click Save.

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

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 snapshot list-access-bindings <snapshot_ID>
```
See the description of the CLI command for assigning roles for a disk snapshot:
```
yc compute snapshot set-access-bindings --help
```

Assign roles:

yc compute snapshot set-access-bindings <snapshot_ID> \
  --access-binding role=<role>,subject=<subject_type>:<subject_ID>

Where:

--access-binding: Role to assign:
- role: ID of the 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 snapshot set-access-bindings my-snapshot \
  --access-binding role=editor,subject=userAccount:gfei8n54hmfh********
  --access-binding role=viewer,subject=userAccount:helj89sfj80a********
  --access-binding role=editor,subject=serviceAccount:ajel6l0jcb9s********

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

To assign multiple roles for a snapshot using Terraform:

In the Terraform configuration file, define the parameters of the resources you want to create:
```
resource "yandex_compute_snapshot_iam_binding" "role-1" {
  snapshot_id = "<snapshot_ID>"
  role        = "<role_1>"
  members     = ["<subject_type>:<subject_ID>"]
}

resource "yandex_compute_snapshot_iam_binding" "role-2" {
  snapshot_id = "<snapshot_ID>"
  role        = "<role_2>"
  members     = ["<subject_type>:<subject_ID>"]
}
```
Where:
- snapshot_id: Snapshot 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_snapshot_iam_binding resource parameters, see the relevant provider documentation.
Create the resources:
1. In the terminal, navigate to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using this command:
```
terraform validate
```
  If the configuration is correct, you will get this message:
```
Success! The configuration is valid.
```
3. Run this command:
```
terraform plan
```
  You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.
4. Apply the changes:
```
terraform apply
```
5. Confirm the changes by typing yes in the terminal and pressing Enter.
You can check the updates using the management console or this CLI command:
```
yc compute snapshot list-access-bindings <snapshot_ID>
```

Use the setAccessBindings REST API method for the Snapshot resource or the SnapshotService/SetAccessBindings gRPC API call.

Revoking a role

Management console

CLI

Terraform

API

In the management console, select the folder the disk snapshot belongs to.
Select Compute Cloud.
In the left-hand panel, select Snapshots.
Select the disk snapshot from the list.
Go to the Access bindings tab.
In the line with the user in question, click and select Edit roles.
Click next to a role to delete it.
Click Save.

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

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

View the roles and assignees for the resource:

yc compute snapshot list-access-bindings <snapshot_ID>

To revoke access permissions, run this command:

yc compute snapshot remove-access-binding <snapshot_ID> \
  --role <role_ID> \
  --subject <subject_type>:<subject_ID>

Where:

--role: ID of the role to revoke.
--subject: Subject to revoke the role from.

For example, this command revokes the viewer role for the disk snapshot from a user with the ajel6l0jcb9s******** ID:

yc compute snapshot remove-access-binding my-snapshot \
  --role viewer \
  --subject userAccount:ajel6l0jcb9s********

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

To revoke a role assigned for a disk snapshot using Terraform:

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

resource "yandex_compute_snapshot_iam_binding" "sa-access" {
  snapshot_id = "<snapshot_ID>"
  role        = "<role>"
  members     = ["<subject_type>:<subject_ID>"]
}

Apply the changes:
1. In the terminal, navigate to the folder where you edited the configuration file.
2. Make sure the configuration file is correct using this command:
```
terraform validate
```
  If the configuration is correct, you will get this message:
```
Success! The configuration is valid.
```
3. Run this command:
```
terraform plan
```
  You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.
4. Apply the changes:
```
terraform apply
```
5. Confirm the changes by typing yes in the terminal and pressing Enter.
You can check the updates using the management console or this CLI command:
```
yc compute snapshot list-access-bindings <snapshot_ID>
```

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

Configuring disk snapshot access permissions

Assigning a roleAssigning a role

Assigning multiple rolesAssigning multiple roles

Revoking a roleRevoking a role

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Assigning a role

Assigning multiple roles

Revoking a role