k8s pod怎么指定到固定物理机ip yaml怎么配置
时间: 2024-03-11 13:50:53 浏览: 40
要将Kubernetes Pod指定到固定物理机IP,需要使用Node Affinity和Pod Affinity属性来实现。具体配置步骤如下:
1. 为目标节点添加标签,例如:node-label=demo-node
2. 在Pod的yaml文件中添加Node Affinity配置,指定节点的标签
```
apiVersion: v1
kind: Pod
metadata:
name: demo-pod
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: node-label
operator: In
values:
- demo-node
containers:
- name: demo-container
image: demo-image
```
3. 配置Pod Affinity规则,指定Pod与其他Pod互相关联的规则
```
apiVersion: v1
kind: Pod
metadata:
name: demo-pod
spec:
affinity:
podAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- key: app
operator: In
values:
- demo-app
topologyKey: "kubernetes.io/hostname"
containers:
- name: demo-container
image: demo-image
```
注意,这里的demo-app是其他Pod的标签,topologyKey是指定关联的规则,这里是指物理机的hostname。
通过这样的配置,可以让Kubernetes Pod指定到固定的物理机IP上。