View a managed namespace and its associated member clusters (preview)

Applies to: ✔️ Fleet Manager with hub cluster

This article shows you how to view the managed namespaces you have access to and monitor resource usage across member clusters.

Important

Azure Kubernetes Fleet Manager preview features are available on a self-service, opt-in basis. Previews are provided "as is" and "as available," and they're excluded from the service-level agreements and limited warranty. Azure Kubernetes Fleet Manager previews are partially covered by customer support on a best-effort basis. As such, these features aren't meant for production use.

Before you begin

Important

This article is intended for developers and team members who need to discover and monitor managed namespaces they have access to. If you're a platform administrator looking to create and configure managed namespaces, see Use multi-cluster managed namespaces for multi-tenancy.

You need an Azure account with an active subscription. Create an account.
You need an existing multi-cluster managed namespace. If you don't have one, see Create a multi-cluster managed namespace.
Read the overview of multi-cluster managed namespaces to understand the concept of a managed namespace.
You need Azure CLI version 2.58.0 or later installed to complete this article. To install or upgrade, see Install Azure CLI.
You need the fleet Azure CLI extension. You can install it and update to the latest version using the az extension add and az extension update commands.
```
# Install the extension
az extension add --name fleet

# Update the extension
az extension update --name fleet
```
Confirm the fleet extension version is at least 1.7.0 using the az extension show command.
```
az extension show --name fleet
```

Set the following environment variables for your subscription ID, resource group, and Fleet:

export SUBSCRIPTION_ID=<subscription-id>
export GROUP=<resource-group-name>
export FLEET=<fleet-name>
export FLEET_NAMESPACE_NAME=<fleet-namespace-name>

Set the default Azure subscription using the az account set command.
```
az account set --subscription ${SUBSCRIPTION_ID}
```

View the multi-cluster managed namespaces I have access to

View the multi-cluster managed namespaces you have access to using the az fleet namespace list command.

az fleet namespace list  
    --resource-group {GROUP} \ 
    --fleet-name ${FLEET} \ 
    -o table

Your output should resemble the following example output:

AdoptionPolicy  DeletePolicy   ETag                                    Location   Name                  ProvisioningState   ResourceGroup
--------------  ------------   -------------------------------------   --------   --------------------  -----------------   -------------
Always          Delete         "aaaaaaaa-0b0b-1c1c-2d2d-333333333333   chinanorth3    my-managed-namespace  Succeeded           test-rg