Node Selector¶

nodeSelector Assign pods to Nodes using Labels and Selectors

给节点设置label Apply Labels to Nodes
Scheduler will assign Pods to a Node with a matchling Label

简单来说就是 key-value的匹配

Pod with nodeSelector¶

apiVersion: v1
kind: Pod
metadata:
  name: web
spec:
  containers:
  - name: hello-world
    image: nginx
  nodeSelector:
    hardware: local_gpu

Status will be pending，通过 kubectl describe pod web 可以查看event

$ $ kubectl get pods -o wide
NAME   READY   STATUS    RESTARTS   AGE   IP       NODE     NOMINATED NODE   READINESS GATES
web    0/1     Pending   0          8s    <none>   <none>   <none>           <none>

add label to the Node

$  kubectl label nodes k8s-worker1 hardware=local_gpu