Installation instruction based on official docs
- Windows: https://kubernetes.io/docs/tasks/tools/install-kubectl-windows
- Linux: https://kubernetes.io/docs/tasks/tools/install-kubectl-linux
- MacOS: https://kubernetes.io/docs/tasks/tools/install-kubectl-macos
Verify kubectl installation
kubectl versionIf installation proccess correct, you will get output like this
Client Version: version.Info{Major:"1", Minor:"27", GitVersion:"v1.27.4", GitCommit:"fa3d7990104d7c1f16943a67f11b154b71f6a132", GitTreeState:"clean", BuildDate:"2023-07-19T12:20:54Z", GoVersion:"go1.20.6", Compiler:"gc", Platform:"linux/amd64"}
Kustomize Version: v5.0.1
The default location of kubectl config is located on ~/.kube/config, you can copy kubeconfig to default config file or change the default config file location by updating OS environment KUBECONFIG
If you are using k3s UI like rancher, there is download menu on navigation top bar
Example usage by usuing KUBECONFIG OS environment
# downloaded kubeconfig location ~/Downloads/k3s-cluster.yaml
# update default kubconfig
export KUBECONFIG=~/Downloads/k3s-cluster.yaml
# try to get server version information
kubectl version
# will get ouput server information like this
# Client Version: version.Info{Major:"1", Minor:"27", GitVersion:"v1.27.4", GitCommit:"fa3d7990104d7c1f16943a67f11b154b71f6a132", GitTreeState:"clean", BuildDate:"2023-07-19T12:20:54Z", GoVersion:"go1.20.6", Compiler:"gc", Platform:"linux/amd64"}
# Kustomize Version: v5.0.1
# Server Version: version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.6+k3s1", GitCommit:"a8e0c66d1a90a2bbc4ffa975129ca35756cc7c14", GitTreeState:"clean", BuildDate:"2022-09-28T16:52:07Z", GoVersion:"go1.18.6", Compiler:"gc", Platform:"linux/amd64"}On k3s, you can easily container/pods port by using service
# namespace or project: my-project
# service name: my-microservice
kubectl port-forward svc/my-microservice -n my-project 8080:8080
# example output
# Forwarding from 127.0.0.1:8080 -> 8080
# Forwarding from [::1]:8080 -> 8080