2. Switching Namespaces Using thekubectlCommand The primary interface for interacting with Kubernetes clusters is thekubectlcommand-line tool.To switch to a specificnamespace, we can use thekubectl config set-contextcommand: $ kubectl config set-context --current --namespace=<namespace-name> ...
In this article, we’ll walk through how to change namespaces in Kubernetes using kubectl command. List all available namespaces To view all namespaces in your Kubernetes cluster, you can use the kubectl get namespaces command. This command will return a list of all the namespaces currently avail...
Namespaces are commonly used in containerization technologies such as Docker and Kubernetes to provide isolated environments for applications. 3. Commands to View Namespaces in Linux Let’s look at some of the commands and files we can use to view our system namespaces. We’ll look at lsns and...
While frequently creating and deleting namespaces in Kubernetes, I stumbled upon an issue where a namespace got stuck in theTerminatingstate and just refused to delete. I useminikubeto run Kubernetes locally, but you can use the following steps and commands in any Kubernetes or OpenShift environme...
6. Leave the proxy running in the terminal and open another terminal window. 7. Execute the followingcurl commandto issue anAPI callto the Kubernetes API: curl -k -H "Content-Type: application/json" -X PUT --data-binary @tmp.json http://127.0.0.1:8001/api/v1/namespaces/[your-namesp...
Different business systems often have different-sized resource needs, along with specialized hardware requirements (such as GPUs). The concept of node labels in Kubernetes allows you to put labels onto all of your various nodes. Pods, meanwhile, can be configured to use specific “nodeSelectors”...
kubectl get namespaces The command returns a list of namespaces in the cluster, showing their running status and age. Kubernetescomes with some initial namespaces out of the box: default. The default namespace for Kubernetes objects that don't belong to other namespaces. ...
Podman in a locked-down container using user namespaces in Kubernetes This only works if you are using CRI-O as your runtime engine for your Kubernetes cluster. We need to add theusernsannotation to the runtime (e.g.,runc,crun,kata, etc.) you'll be using with CRI-O. ...
Deleting Kubernetes service First list available services in your kubernetes cluster. This command will list out all the services created within all namespaces: root@kmaster-rj:~/pod-create# kubectl get svc --all-namespaces -o wide NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECT...
The value for this selector has to be a valid Kubernetes label selector. propagate.hnc.x-k8s.io/treeSelect: Use a single namespace name to represent where this object should be propagated, or use a comma-separated list of negated (“!”) namespaces to represent which namespaces not to ...