Kubernetes ネームスペース(namespace)周りのまとめ

よく忘れてしまうので、Kubernetes のネームスペース関連をメモ代わりにまとめておきます。

ネームスペースの作成

# kubectl create namespace mongodb

ネームスペースの削除

# kubectl delete namespace mongodb
namespace "mongodb" deleted

ネームスペース一覧

# kubectl get ns
NAME                   STATUS   AGE
default                Active   23d
gpu-operator           Active   21d
ingress-nginx          Active   22d
kube-flannel           Active   23d
kube-node-lease        Active   23d
kube-public            Active   23d
kube-system            Active   23d
kubernetes-dashboard   Active   23d
metallb-system         Active   22d
micro-grafana          Active   4h30m
microai                Active   16d
mongodb                Active   15d
ollama                 Active   21d
redis                  Active   16d

ネームスペースに属するリソース一覧取得

# kubectl get all -n microai -o wide
NAME                                 READY   STATUS    RESTARTS   AGE     IP          NODE        NOMINATED NODE   READINESS GATES
pod/api-microai-jp-7f8f55849-4wr2c   1/1     Running   0          6d15h   10.0.8.68   worker-05   <none>           <none>
pod/api-microai-jp-7f8f55849-rgpqw   1/1     Running   0          6d15h   10.0.9.72   worker-04   <none>           <none>
pod/microai-jp-7bb4797768-6kdcw      1/1     Running   0          6h18m   10.0.8.92   worker-05   <none>           <none>
pod/microai-jp-7bb4797768-748hc      1/1     Running   0          6h19m   10.0.9.98   worker-04   <none>           <none>

NAME                             TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE   SELECTOR
service/api-microai-jp-service   ClusterIP   10.101.202.149   <none>        80/TCP    15d   app=api.microai.jp
service/microai-jp-service       ClusterIP   10.103.235.177   <none>        80/TCP    15d   app=microai.jp

NAME                             READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS       IMAGES                                    SELECTOR
deployment.apps/api-microai-jp   2/2     2            2           15d   api-microai-jp   ghcr.io/microaijp/api.microai.jp:latest   app=api.microai.jp
deployment.apps/microai-jp       2/2     2            2           11d   microai-jp       ghcr.io/microaijp/microai.jp:latest       app=microai.jp

NAME                                        DESIRED   CURRENT   READY   AGE     CONTAINERS       IMAGES                                    SELECTOR
replicaset.apps/api-microai-jp-5bb7cb949f   0         0         0       6d15h   api-microai-jp   ghcr.io/microaijp/api.microai.jp:latest   app=api.microai.jp,pod-template-hash=5bb7cb949f
replicaset.apps/api-microai-jp-5c4596b9f5   0         0         0       9d      api-microai-jp   ghcr.io/microaijp/api.microai.jp:latest   app=api.microai.jp,pod-template-hash=5c4596b9f5
: