update (#8912)

Author: FumingZhang

src/aks-preview/HISTORY.rst

@@ -12,6 +12,10 @@ To release a new version, please select a new version number (usually plus 1 to
 Pending
 +++++++
 
+18.0.0b21
++++++++
+* Add command `az aks bastion` to enable connections to managed Kubernetes clusters via Azure Bastion.
+
 18.0.0b20
 +++++++
 * Fix the bug affecting VMAS to VMS migration in the `az aks update` command using the `--migrate-vmas-to-vms` option.

src/aks-preview/azext_aks_preview/_help.py

@@ -3864,3 +3864,24 @@
         - name: Show details of a load balancer configuration in table format
           text: az aks loadbalancer show -g MyResourceGroup -n kubernetes --cluster-name MyManagedCluster -o table
 """
+
+helps['aks bastion'] = """
+    type: command
+    short-summary: Connect to a managed Kubernetes cluster using Azure Bastion.
+    long-summary: The command will launch a subshell with the kubeconfig set to connect to the cluster via Bastion. Use exit or Ctrl-D (i.e. EOF) to exit the subshell.
+    parameters:
+        - name: --bastion
+          type: string
+          short-summary: The name or resource ID of a pre-deployed Bastion resource configured to connect to the current AKS cluster.
+          long-summary: If not specified, the command will try to identify an existing Bastion resource within the cluster's node resource group.
+        - name: --port
+          type: int
+          short-summary: The local port number used for the bastion connection.
+          long-summary: If not provided, a random port will be used.
+        - name: --admin
+          type: bool
+          short-summary: Use the cluster admin credentials to connect to the bastion.
+    examples:
+        - name: Connect to a managed Kubernetes cluster using Azure Bastion with custom port and admin credentials.
+          text: az aks bastion -g MyResourceGroup --name MyManagedCluster --bastion MyBastionResource --port 50001 --admin
+"""

src/aks-preview/azext_aks_preview/_params.py

@@ -2761,6 +2761,17 @@ def load_arguments(self, _):
                 help="Name of the load balancer configuration. Required.",
             )
 
+    with self.argument_context("aks bastion") as c:
+        c.argument("bastion")
+        c.argument("port", type=int)
+        c.argument("admin", action="store_true")
+        c.argument(
+            "yes",
+            options_list=["--yes", "-y"],
+            help="Do not prompt for confirmation.",
+            action="store_true",
+        )
+
 
 def _get_default_install_location(exe_name):
     system = platform.system()