k8s 创建、切换、删除namespace

初学 k8s ,记录一下

1. 创建namespace
   # kubectl create ns test-ns

    namespace/test-ns created
   

2. 获取namespace
   # kubectl get ns

    NAME                   STATUS   AGE
    default                Active   25h
    kube-node-lease        Active   25h
    kube-public            Active   25h
    kube-system            Active   25h
    kubernetes-dashboard   Active   25h
    test-ns                Active   13s
   

3. 获取当前context
   # kubectl config current-context

    kubernetes-admin@kubernetes
   

4. 切换到 test-ns
   # kubectl config set-context $(kubectl config current-context) --namespace=test-ns

    Context "kubernetes-admin@kubernetes" modified.
   

5. 切换回到default
   # kubectl config set-context $(kubectl config current-context) --namespace=default

    Context "kubernetes-admin@kubernetes" modified.
   

6. 删除 namespace
   # kubectl delete namespaces test-ns

    namespace "test-ns" deleted
   

7. 验证
   # kubectl get pods

   切换到test-ns，看不到之前创建的 pods
   切换回到default，可以看到之前创建的 pods