Enable control plane load balancing for kube-vip (#9785)

Signed-off-by: bo.jiang <bo.jiang@daocloud.io>

docs/kube-vip.md

@@ -64,3 +64,9 @@ kube_vip_bgppeers:
 # kube_vip_bgp_peerpass:
 # kube_vip_bgp_peeras:
 ```
+
+If using [control plane load-balancing](https://kube-vip.io/docs/about/architecture/#control-plane-load-balancing):
+
+```yaml
+kube_vip_lb_enable: true
+```

roles/kubernetes/node/defaults/main.yml

@@ -87,6 +87,7 @@ kube_vip_bgp_peeras: 65000
 kube_vip_bgppeers:
 kube_vip_address:
 kube_vip_enableServicesElection: false
+kube_vip_lb_enable: false
 
 # Requests for load balancer app
 loadbalancer_apiserver_memory_requests: 32M

roles/kubernetes/node/templates/manifests/kube-vip.manifest.j2

@@ -71,6 +71,10 @@ spec:
 {% if kube_vip_enableServicesElection %}
     - name: enableServicesElection
       value: "true"
+{% endif %}
+{% if kube_vip_lb_enable %}
+    - name: lb_enable
+      value: "true"
 {% endif %}
     image: {{ kube_vip_image_repo }}:{{ kube_vip_image_tag }}
     imagePullPolicy: {{ k8s_image_pull_policy }}