[Yandex Cloud documentation](../../../../index.md) > [Yandex Serverless Integrations](../../../index.md) > [Step-by-step guides](../../index.md) > EventRouter > Managing a bus > Managing labels > Adding a label

# Adding a label to a bus

{% list tabs group=instructions %}

- Management console {#console}

  1. In the [management console](https://console.yandex.cloud), go to the folder where you want to add a label to a [bus](../../../concepts/eventrouter/bus.md).
  1. Navigate to **Serverless Integrations**.
  1. In the left-hand panel, select ![image](../../../../_assets/console-icons/object-align-center-vertical.svg) **EventRouter**.
  1. Click ![image](../../../../_assets/console-icons/ellipsis.svg) in the [bus](../../../concepts/eventrouter/bus.md) row and select ![image](../../../../_assets/console-icons/pencil.svg) **Edit**.
  1. In the **Labels** field, click **Add label**.
  1. Enter the key and value, and press **Enter**.
  1. Click **Save**.

- CLI {#cli}

  If you do not have the Yandex Cloud CLI yet, [install and initialize it](../../../../cli/quickstart.md#install).

  The folder used by default is the one specified when [creating](../../../../cli/operations/profile/profile-create.md) the CLI profile. To change the default folder, use the `yc config set folder-id <folder_ID>` command. You can also specify a different folder for any command using `--folder-name` or `--folder-id`. If you access a resource by its name, the search will be limited to the default folder. If you access a resource by its ID, the search will be global, i.e., through all folders based on access permissions.

  To add a label to a [bus](../../../concepts/eventrouter/bus.md), run this command:

  {% note warning %}
  
  The existing labels (`labels`) will be completely overwritten by the ones you provide in your request.
  
  {% endnote %}

  ```bash
  yc serverless eventrouter bus update <bus_name_or_ID> \
    --labels <label_list>
  ```

  Where `--labels` is a list of labels. You can specify one label or multiple labels separated by commas in `<key1>=<value1>,<key2>=<value2>` format.

  Result:

  ```text
  id: f66aevm4ithv********
  folder_id: b1g681qpemb4********
  cloud_id: b1gia87mbaom********
  created_at: "2025-02-13T12:36:59.497985Z"
  name: my-bus-43
  description: this is my bus
  labels:
    owner: admin
    version: beta
  deletion_protection: true
  status: ACTIVE
  ```

- Terraform {#tf}

  With [Terraform](https://www.terraform.io/), 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](https://github.com/hashicorp/terraform/blob/main/LICENSE). The [Yandex Cloud provider for Terraform](https://github.com/yandex-cloud/terraform-provider-yandex) is distributed under the [MPL-2.0](https://www.mozilla.org/en-US/MPL/2.0/) license.
  
  For more information about the provider resources, see the guides on the [Terraform](https://www.terraform.io/docs/providers/yandex/index.html) website or [its mirror](../../../../terraform/index.md).

  If you do not have Terraform yet, [install it and configure the Yandex Cloud provider](../../../../tutorials/infrastructure-management/terraform-quickstart.md#install-terraform).
  
  
  To manage infrastructure using Terraform under a service account or user accounts (a Yandex account, a federated account, or a local user), [authenticate](../../../../terraform/authentication.md) using the appropriate method.

  To add a label to a [bus](../../../concepts/eventrouter/bus.md), follow these steps:

  1. Open the Terraform configuration file. Under `labels`, enlist the labels in `key = "value"` format.

      Example of a bus description in a Terraform configuration file:

      ```hcl
      resource "yandex_serverless_eventrouter_bus" "example_bus" {
        name                = "my-bus"
        description         = "this is my bus"
        deletion_protection = true

        labels = {
          key1 = "value1"
          key2 = "value2"
        }
      }
      ```

      For more on the properties of the `yandex_serverless_eventrouter_bus` resource, see [this provider guide](../../../../terraform/resources/serverless_eventrouter_bus.md).

  1. Apply the changes:

      1. In the terminal, navigate to the configuration file directory.
      1. Make sure the configuration is correct using this command:
      
         ```bash
         terraform validate
         ```
      
         If the configuration is valid, you will get this message:
      
         ```bash
         Success! The configuration is valid.
         ```
      
      1. Run this command:
      
         ```bash
         terraform plan
         ```
      
         You will see a list of resources and their properties. No changes will be made at this step. Terraform will show any errors in the configuration.
      1. Apply the configuration changes:
      
         ```bash
         terraform apply
         ```
      
      1. Type `yes` and press **Enter** to confirm the changes.

      Terraform will create all the required resources. You can check the updates using the [management console](https://console.yandex.cloud) or this [CLI](../../../../cli/index.md) command:

      ```bash
      yc serverless eventrouter bus list
      ```

- API {#api}

  To add a label to a [bus](../../../concepts/eventrouter/bus.md), use the [Update](../../../eventrouter/api-ref/Bus/update.md) REST API method for the [Bus](../../../eventrouter/api-ref/Bus/index.md) resource or the [Bus/Update](../../../eventrouter/api-ref/grpc/Bus/update.md) gRPC API call.

{% endlist %}