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CKA試験、Node

Last updated at Posted at 2023-03-07

Node

  • ノードに新たなPodを作成できないようにする
kubectl cordon <ノード名>
  • ノードに新たなPodを作成できるようにする
kubectl uncordon <ノード名>
  • 特定のノードから実行中のPodをなくす
  • ノードに新たなPodを作成できないようにする
kubectl drain <ノード名> --ignore-daemonsets -force

Node Schedule

次の条件を持つPodを作りなさい

  • Pod名: eshop-store
  • image: nginx
  • Node selector: disktype=ssd
kubectl run eshop-store --image=nginx --dry-run=client -o yaml > 8.yaml

vi 8.yaml
(修正前) 8.yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: eshop-store
  name: eshop-store
spec:
  containers:
  - image: nginx
    name: eshop-store
    resources: {}
  dnsPolicy: ClusterFirst
  restartPolicy: Always
status: {}
(修正後) 8.yaml
apiVersion: v1
kind: Pod
metadata:
  name: eshop-store
spec:
  nodeSelector:
    disktype: ssd
  containers:
  - image: nginx
    name: eshop-store

kubectl apply -f ./8.yaml
kubectl get pods eshop-store -L disktype
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