add node selector for lb svc gateway (#232)

Signed-off-by: clyi <[email protected]>
kubeovn · Dec 30, 2024 · e30f714 · e30f714
1 parent 17c929d
commit e30f714
Show file tree

Hide file tree

Showing 4 changed files with 39 additions and 2 deletions.
diff --git a/docs/guide/loadbalancer-service.en.md b/docs/guide/loadbalancer-service.en.md
@@ -330,3 +330,19 @@ Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
  pkts bytes target     prot opt in     out     source               destination
     0     0 MASQUERADE  all  --  *      *       0.0.0.0/0            10.109.201.193
 ```
+
+### Configure the `nodeSelector` for the LB Service Pod
+
+You can specify the node where the LoadBalancer service gateway Pod is deployed by adjusting the `nodeSelector` in the `ovn-vpc-nat-config` ConfigMap.
+
+```yaml
+apiVersion: v1
+data:
+  image: docker.io/kubeovn/vpc-nat-gateway:v1.14.0
+  nodeSelector: |
+    kubernetes.io/hostname: kube-ovn-control-plane
+    kubernetes.io/os: linux
+kind: ConfigMap
+metadata:
+  name: ovn-vpc-nat-config
+  namespace: kube-system
diff --git a/docs/guide/loadbalancer-service.md b/docs/guide/loadbalancer-service.md
@@ -330,3 +330,20 @@ Chain POSTROUTING (policy ACCEPT 0 packets, 0 bytes)
  pkts bytes target     prot opt in     out     source               destination
     0     0 MASQUERADE  all  --  *      *       0.0.0.0/0            10.109.201.193
 ```
+
+### 配置 lb service Pod 的 nodeSelector
+
+可以通过调整 `ovn-vpc-nat-config` ConfigMap 中的 `nodeSelector` 来指定 LoadBalancer service 网关 Pod 部署的节点。
+
+```yaml
+apiVersion: v1
+data:
+  image: docker.io/kubeovn/vpc-nat-gateway:v1.14.0
+  nodeSelector: |
+    kubernetes.io/hostname: kube-ovn-control-plane
+    kubernetes.io/os: linux
+kind: ConfigMap
+metadata:
+  name: ovn-vpc-nat-config
+  namespace: kube-system
+```
diff --git a/docs/guide/vpc.en.md b/docs/guide/vpc.en.md
@@ -172,7 +172,7 @@ Vlan and security policy in the underlying network device in advance.
 
 ### Enabling the VPC Gateway
 
-VPC gateway functionality needs to be enabled via `ovn-vpc-nat-gw-config` under `kube-system`:
+The VPC gateway functionality can be enabled by configuring the `ovn-vpc-nat-gw-config` in the `kube-system` namespace. The `nodeSelector` can be used to specify the node where the gateway is deployed:
 
 ```yaml
 ---
@@ -183,6 +183,8 @@ metadata:
   namespace: kube-system
 data:
   image: docker.io/kubeovn/vpc-nat-gateway:{{ variables.version }}
+  nodeSelector: |
+    kubernetes.io/hostname: kube-ovn-control-plane
 ---
 kind: ConfigMap
 apiVersion: v1

diff --git a/docs/guide/vpc.md b/docs/guide/vpc.md
@@ -168,7 +168,7 @@ spec:
 
 ### 开启 VPC 网关功能
 
-VPC 网关功能需要通过 `kube-system` 下的 `ovn-vpc-nat-gw-config` 开启：
+VPC 网关功能需要通过 `kube-system` 命名空间下的 `ovn-vpc-nat-gw-config` 配置开启，其中 `nodeSelector` 可以指定网关部署所在的节点：
 
 ```yaml
 ---
@@ -179,6 +179,8 @@ metadata:
   namespace: kube-system
 data:
   image: 'docker.io/kubeovn/vpc-nat-gateway:{{ variables.version }}' 
+  nodeSelector: |
+    kubernetes.io/hostname: kube-ovn-control-plane
 ---
 kind: ConfigMap
 apiVersion: v1