[Kubernetes] Taint and Toleration

Taint and Toleration

Node 목록 보기

kubectl get nodes

NAME           STATUS   ROLES    AGE    VERSION
controlplane   Ready    master   119s   v1.19.0
node01         Ready    <none>   86s    v1.19.0

Node 목록 상세

kubectl get nodes -o wide

NAME           STATUS   ROLES    AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION       CONTAINER-RUNTIME
controlplane   Ready    master   3m1s    v1.19.0   172.17.0.8    <none>        Ubuntu 18.04.5 LTS   4.15.0-122-generic   docker://19.3.13
node01         Ready    <none>   2m28s   v1.19.0   172.17.0.16   <none>        Ubuntu 18.04.5 LTS   4.15.0-122-generic   docker://19.3.13

Taint 설정하기.

kubectl taint nodes node01 spray=Value:NoSchedule

node/node01 tainted

kubectl taint nodes =:

의 형식으로 지정가능하다.

Taint Override 하기.

kubectl taint nodes node01 spray=mortein:NoSchedule --overwrite

node/node01 modified

–overwrite 를 이용하면 기존 taint 를 갱신할 수 있다.

Toleration 이 적용된 pod 생성하기.

apiVersion: v1
kind: Pod
metadata:
  name: bee
spec:
  containers:
  - image: nginx
    name: bee
  tolerations:
  - key: spray
    value: mortein
    effect: NoSchedule
    operator: Equal