Help Center/ Ubiquitous Cloud Native Service/ User Guide/ Cluster Federation/ Namespaces
Updated on 2024-12-18 GMT+08:00
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Namespaces

A namespace is an abstract integration of a group of resources and objects in a cluster. Namespace-level resource quotas limit the amount of resources available to teams or projects that use the same cluster.

Creating a Namespace

  1. Log in to the UCS console. In the navigation pane, choose Fleets.
  2. On the Fleets tab, click the name of the federation-enabled fleet to access its details page.
  3. Choose Namespaces in the navigation pane and click Create Namespace in the upper right corner.
  4. Set namespace parameters based on Table 1.

    Table 1 Parameters for creating a namespace

    Parameter

    Description

    Name

    Name of a namespace, which must be unique in a cluster.

    Label

    Add labels to namespaces and define different attributes in the key-value pair format. You can learn the characteristics of each namespace through these labels.

    Annotation

    Add customized annotations to the namespace in the key-value pair format.

    Description

    Description of the namespace.

  5. When the configuration is complete, click OK.

    After the creation is complete, you can click View YAML to view and download the YAML file.

Using Namespaces

Namespaces can be used when creating Services, ingresses, and PVCs. The following uses workload creation as an example to describe how a namespace is used.

  1. Log in to the UCS console. In the navigation pane, choose Fleets.
  2. On the Fleets tab, click the name of the federation-enabled fleet to access its details page.
  3. In the navigation pane, choose Workloads. On the Deployments tab, click Create from Image in the upper right corner.
  4. Configure the basic information about the workload and select the namespace where the workload is located.
  5. Complete the configuration.

Deleting a Namespace

  • Deleting a namespace on the UCS console will delete the namespace with the same name in each cluster as well as all data resources related to the namespace. Exercise caution when performing this operation.
  • To ensure that UCS runs properly, namespaces whose source is System or Default cannot be deleted.
  1. Log in to the UCS console. In the navigation pane, choose Fleets.
  2. On the Fleets tab, click the name of the federation-enabled fleet to access its details page.
  3. Choose Namespaces in the navigation pane. In the namespace list, click Delete in the row of the target namespace.

    To delete multiple namespaces at a time, select the namespaces and click Delete in the upper left corner.

  4. Click Yes as prompted.
Parent topic: Cluster Federation