hooglusb.blogg.se - Kubectl list contexts

#Kubectl list contexts code#
#Kubectl list contexts series#
#Kubectl list contexts mac#

Kubepug is the perfect pre-upgrade Kubernetes cluster checker.This plugin reduces the number of commands required to identify the parent/child relationship of Kubernetes resources. Kubectl tree explores ownership relationships between Kubernetes objects to optimize the display of information, making it more human-readable.This is definitely a plugin required to troubleshoot any Container Network Interface (CNI) issue. Ksniff, everything is in the name, this plugin utilizes Tcpdump and Wireshark to start a remote capture on any pod in a Kubernetes cluster.Perfect for a CI/CD pipeline before applying the resources.

#Kubectl list contexts code#

Kube-score aims to improve the security and the reliability of the Kubernetes workload by performing static code analysis of Kubernetes objects definition.

It can tail the logs of multiple pods based on the service name, the replica set, the deployment, etc… Be more productive by tailing all the logs in one terminal window to quickly identify potential issues.

Kail is THE plugin required to troubleshoot any issues on a Kubernetes cluster.

This plugin makes it easier to switch between context and namespace with Kubectl. Moving from a context to another one, from a namespace to another one are probably the most used commands.

Kubectx / Kubens is probably the most important plugin and the first one to install.

Here is a list of 10 plugins that you should be aware of: Thanks to the context concept and on the opposite of the flag, the KUBECONFIG environment variable can hold a list of kubeconfig files (delimited by a colon on Linux/Mac, a semicolon on Windows) to easily access multiple clusters for example.Īs mentioned previously, the number of plugins keeps increasing to improve our Kubectl productivity. Context groups access parameters under a convenient name to easily access a remote Kubernetes cluster via Kubectl.īy default, Kubectl looks for a file named config in the home directory of the current user (for example $HOME/.kube) but this setting can be overwritten by setting the KUBECONFIG environment variable or by setting the -kubeconfig flag to the Kubectl command line.

This combination introduced a new concept called a Kubernetes context.

#Kubectl list contexts series#

This file can contain a series of authentication mechanisms combined to cluster connection information. In order to easily switch between multiple clusters and/or multiple users, a Kubeconfig file was defined. The authentication process requires a running Kubernetes API server to authenticate to and a config file containing a series of information to connect to the remote cluster. What Is a Kubeconfig File?Īuthentication is required on a Kubernetes cluster to operate the resources. Once the Kubectl is installed and the auto-completion configured, the next step is to get a kubeconfig file to reach a remote Kubernetes cluster. Kubectl can generate automatically the auto-completion script for the desired environment: The auto-completion will allow you to easily find action, a resource name, a namespace name, etc, making your command line (CLI) operation more productive. The first thing to do after the installation of Kubectl is to configure the auto-completion to interact with the Kubernetes resources in an easier way. Kubectl’s responsibility is to create and format the POST request sent to the Kubernetes API Server. This means that every Kubernetes operation is exposed as an API endpoint and can be executed by an HTTP request to this endpoint.

#Kubectl list contexts mac#

Kubectl is a command-line tool that can be installed almost everywhere (Linux, Mac OS, Windows, etc) to interact with the only entry point of a Kubernetes cluster, the API server. Basically, it allows you to perform every possible Kubernetes operation. Kubectl is the default entry point to create, update, read and delete (CRUD) every Kubernetes resource.

What Is Kubectl?Īs every cluster management tool, Kubernetes comes with a default command-line tool to manage the resources: Kubectl for Kube Control.

Mastering Kubectl is important in the learning path to get certified on Kubernetes, (developer, administrator, and security) as the certifications rely on Kubectl commands, so some tips provided in this guide can help you during your certification. The purpose of this article is to share some guidelines to master the Kubectl command-line tool. Today, Kubernetes is the most popular container orchestration tool for managing and scaling containerized infrastructure.Īs an SRE, DevOps, Sys Admin, developer, or whatever the name of your role position, if you have to manage, operate, or just read Kubernetes resources, you will probably need to understand some basic principles like the Kubectl command line.