Handle kube config management for sky local commands

sky/cli.py

@@ -4421,13 +4421,13 @@ def local_up():
     cluster_created = False
     # Check if ~/.kube/config exists:
     if os.path.exists(os.path.expanduser('~/.kube/config')):
-        # Check if kubeconfig is valid, `kind delete` leaves an empty kubeconfig
-        valid, reason = kubernetes_utils.check_credentials()
-        if valid or (not valid and 'Invalid configuration' not in reason):
-            # Could be a valid kubeconfig or a non-empty but non-functioning
-            # kubeconfig - check if user wants to overwrite it
-            prompt = 'Cluster config found at ~/.kube/config. Overwrite it?'
-            click.confirm(prompt, default=True, abort=True, show_default=True)
+        current_context = kubernetes_utils.get_current_kube_config_context()
+        skypilot_context = "kind-skypilot"
+        if current_context is not None and current_context != skypilot_context:
+            click.echo(
+                f'Current context in kube config: {current_context}'
+                '\nWill automatically switch to kind-skypilot after the local cluster is created.'
+            )
     with log_utils.safe_rich_status('Creating local cluster...'):
         path_to_package = os.path.dirname(os.path.dirname(__file__))
         up_script_path = os.path.join(path_to_package, 'sky/utils/kubernetes',

sky/skylet/providers/kubernetes/utils.py

@@ -66,3 +66,18 @@ def get_cluster_status(cluster_name: str,
             cluster_status.append(status_lib.ClusterStatus.INIT)
     # If pods are not found, we don't add them to the return list
     return cluster_status
+
+
+def get_current_kube_config_context() -> Optional[str]:
+    """
+    Get the current kubernetes context from the kubeconfig file
+
+    Returns:
+        str | None: The current kubernetes context if it exists, None otherwise
+    """
+    k8s = kubernetes.get_kubernetes()
+    try:
+        _, current_context = k8s.config.list_kube_config_contexts()
+        return current_context['name']
+    except k8s.config.config_exception.ConfigException:
+        return None

sky/utils/kubernetes/delete_cluster.sh

@@ -24,3 +24,10 @@ fi
 
 kind delete cluster --name skypilot
 echo "Local cluster deleted!"
+
+# Switch to the first available context
+AVAILABLE_CONTEXT=$(kubectl config get-contexts -o name | head -n 1)
+if [ ! -z "$AVAILABLE_CONTEXT" ]; then
+    echo "Switching to context $AVAILABLE_CONTEXT"
+    kubectl config use-context $AVAILABLE_CONTEXT
+fi