1. 相关背景 早上 10:00 因同事需求，我通过工具在集群上创建 Kubernetes Job 执行任务。 工具创建 Job 时，会拿到集群上的全部节点，然后逐个绑定节点创建 Job。例如，如下集群: 1 2 3 4 5 6 7 8 9 10 kubectl get node NAME STATUS ROLES AGE VERSION node2 Ready control-plane,master,worker 64d v1.16.11 node3 Ready control-plane,master,worker 64d v1.16.11 node4 Ready control-plane,master,worker 64d v1.16.11 node5 Ready worker 64d v1.16.11 node6 Ready worker 64d v1.16.11 node7 NotReady,SchedulingDisabled worker 64d

1. 创建负载时，通过 nodeSelector 指定 Node 给节点添加标签 1 kubectl label node node2 project=A 指定 nodeSelector 创建工作负载 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 cat <<EOF | kubectl apply -f - apiVersion: apps/v1 kind: Deployment metadata: name: nginx-nodeselector spec: replicas: 1 selector: matchLabels: app: nginx-nodeselector template: metadata: labels: app: nginx-nodeselector spec: nodeSelector: project: A containers: - name: nginx image: nginx EOF 查看工作负载 1 2 3 4 kubectl get pod -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES