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쿠버네티스 kubectl config 설정
쿠버네티스 컨트롤러 서버(linux)
kubectl config view
$ kubectl config view
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: DATA+OMITTED
server: https://127.0.0.1:6443
name: cluster.local
contexts:
- context:
cluster: cluster.local
user: kubernetes-admin
name: kubernetes-admin@cluster.local
current-context: kubernetes-admin@cluster.local
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: REDACTED
client-key-data: REDACTED
ls -l /etc/kubernetes/admin.conf
외부 kubectl 피씨(mac)
mkdir -pv ~/.kube
cd ~/.kube
scp root@kube-control1:/etc/kubernetes/admin.conf ~/.kube/.
cp ~/.kube/admin.conf ~/.kube/config
config 편집
- server: https://127.0.0.1:6443
+ server: https://192.168.0.51:6443
vim ~/.kube/config
> vim ~/.kube/config
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0F...S0tLS0tCg==
server: https://192.168.0.51:6443
name: cluster.local
contexts:
...
kubectl config view
> kubectl config view
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: DATA+OMITTED
server: https://192.168.0.51:6443
name: cluster.local
contexts:
- context:
cluster: cluster.local
user: kubernetes-admin
name: kubernetes-admin@cluster.local
current-context: kubernetes-admin@cluster.local
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: REDACTED
client-key-data: REDACTED
kubectl(client) 버전 및 kubernetes cluster(server) 버전 확인
kubectl version --output json | jq
> kubectl version --output json | jq
{
"clientVersion": {
"major": "1",
"minor": "25",
"gitVersion": "v1.25.2",
"gitCommit": "5835544ca568b757a8ecae5c153f317e5736700e",
"gitTreeState": "clean",
"buildDate": "2022-09-21T14:25:45Z",
"goVersion": "go1.19.1",
"compiler": "gc",
"platform": "darwin/arm64"
},
"kustomizeVersion": "v4.5.7",
"serverVersion": {
"major": "1",
"minor": "24",
"gitVersion": "v1.24.7",
"gitCommit": "e6f35974b08862a23e7f4aad8e5d7f7f2de26c15",
"gitTreeState": "clean",
"buildDate": "2022-10-12T10:50:21Z",
"goVersion": "go1.18.7",
"compiler": "gc",
"platform": "linux/amd64"
}
}
컨텍스트 확인
kubectl config get-contexts
> kubectl config get-contexts
CURRENT NAME CLUSTER AUTHINFO NAMESPACE
* kubernetes-admin@cluster.local cluster.local kubernetes-admin
노드 확인
kubectl get nodes
> kubectl get nodes
NAME STATUS ROLES AGE VERSION
kube-control1 Ready control-plane 32h v1.24.7
kube-node1 Ready <none> 32h v1.24.7
kube-node2 Ready <none> 32h v1.24.7
kube-node3 Ready <none> 32h v1.24.7
kube-node4 NotReady <none> 32h v1.24.7
kube-node5 NotReady <none> 32h v1.24.7
kube-node6 NotReady <none> 32h v1.24.7
현재 네임스페이스 설정
kubectl config set-context --current --namespace=default
> kubectl config set-context --current --namespace=default
Context "kubernetes-admin@cluster.local" modified.
현재 네임스페이스 확인
kubectl config view | grep namespace
> kubectl config view | grep namespace
namespace: default
kubens 명령으로 현재 네임스페이스 확인
kubens
참고URL
- kubectx + kubens: Power tools for kubectl : https://github.com/ahmetb/kubectx
- [kubernetes] 쿠버네티스 워크로드 - 네임스페이스(namespaces) : https://scbyun.com/1347
- [kubernetes] kubectl config 명령 : https://scbyun.com/1352
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