![]() Kubernetes uses an X.509 certificate to authenticate the default cluster administrator. Authentication with kubeconfigīy default, there is no user object inside Kubernetes. If the namespace does not exist inside Kubernetes, the commands will fail and display the default Kubernetes message for a nonexistent namespace. The context name is arbitrary, but the user and cluster should be predefined inside the kubeconfig file. It also defines a default namespace for this pair. The contexts section specifies a combination of a user and a cluster. token contains a token for this user when there is no certificate.client-key contains the key that signed the client certificate.This can be a file path or a Base64 string in the certificate PEM format. client-certificate contains a certificate for the user signed by the Kubernetes CA.This name is arbitrary, and there is no relationship with any object inside Kubernetes or OpenShift. In this case, there is only a single user, named minikube. The users section lists all users already used to connect to a cluster. This can be a file path or a Base64 string of the certificate's Privacy Enhanced Mail (PEM) format. certificate-authority contains a certificate for the certificate authority (CA) that signed all internal Kubernetes certificates.This name is arbitrary and can be any name you like. In this case, there is only one, named minikube. The clusters section lists all clusters that you already connected. Here are some additional details on clusters, contexts, and users. Interactive course: Deploy a cluster in Red Hat OpenShift Service on AWS (ROSA).Interactive course: Getting started with OpenShift.Kubernetes: Everything you need to know.The following is a sample kubeconfig file from a new minikube installation: apiVersion: v1Ĭertificate-authority: /home/hector/.minikube/ca.crtĬlient-certificate: /home/hector/.minikube/profiles/minikube/client.crtĬlient-key: /home/hector/.minikube/profiles/minikube/client.key Every time you execute an oc or kubectl command, you reference a context inside kubeconfig. A context is a combination of a cluster and a user.A user is a credential used to interact with the Kubernetes API.A cluster is a Kubernetes or OpenShift cluster.The kubeconfig file is a YAML file containing groups of clusters, users, and contexts. ![]() There are other ways to specify the kubeconfig location, such as the KUBECONFIG environment variable or the kubectl -kubeconfig parameter. The default location of the kubeconfig file is ~/.kube/config. Instead of using the full kubeconfig name, the file is just named config. The kubeconfig file's default location for kubectl or oc is the ~/.kube directory. Usually, the kubectl or oc commands use the kubeconfig file. Kubernetes components like kubelet, kube-controller-manager, or kubectl use the kubeconfig file to interact with the Kubernetes API. A practical introduction to container terminology.Set kubectl context per shell or terminal - Kubern.Skip to bottom of list Skip to the bottom of list.It supports autocomplete for contexts and namespaces.So it works perfectly with static and dynamic kube config files. It doesn't change anything in ~/.kube/config file.It still can be used along with other tools like kubectx/kubens. ![]()
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