Add bindAddress documentation

docs/configuration.md

@@ -40,6 +40,7 @@ spec:
   api:
     address: 192.168.68.104
     port: 6443
+    bindAddress: 0.0.0.0
     k0sApiPort: 9443
     externalAddress: my-lb-address.example.com
     sans:
@@ -112,7 +113,8 @@ spec:
 | Element   | Description           |
 |-----------|---------------------------|
 | `externalAddress`      | The loadbalancer address (for k0s controllers running behind a loadbalancer). Configures all cluster components to connect to this address and also configures this address for use  when joining new nodes to the cluster.|
-| `address`      | Local address on wihich to bind an API. Also serves as one of the addresses pushed on the k0s create service certificate on the API. Defaults to first non-local address found on the node.|
+| `address`      | Local address on which to bind an API. Also serves as one of the addresses pushed on the k0s create service certificate on the API. Defaults to first non-local address found on the node.|
+| `bindAddress`      | Local address on which to bind the kube-apiserver. Defaults to 0.0.0.0.|
 | `sans`      | List of additional addresses to push to API servers serving the certificate.|
 | `extraArgs`      | Map of key-values (strings) for any extra arguments to pass down to Kubernetes api-server process.|
 | `port`¹     | Custom port for kube-api server to listen on (default: 6443)|