Kubectl install¶
using Brew¶
this is the simplest for OsX:
Installing from the source project¶
This is the prefered installation for Linux or when you want full control.
If you want to install a specific version, check the the list of official releases.
OsX Install
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/darwin/amd64/kubectl"
chmod 755 kubectl
mv kubectl /usr/local/bin
# install a specific version
curl -LO "https://dl.k8s.io/release/v1.25.0/bin/darwin/amd64/kubectl"
chmod 755 kubectl
mv kubectl /usr/local/bin
# for Apple M1/M2 processors
curl -LO "https://dl.k8s.io/release/v1.25.0/bin/darwin/arm64/kubectl"
chmod 755 kubectl
mv kubectl /usr/local/bin
Linux Install
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
chmod 755 kubectl
mv kubectl /usr/local/bin
# install a specific version
curl -LO "https://dl.k8s.io/release/v1.25.0/bin/linux/amd64/kubectl"
chmod 755 kubectl
mv kubectl /usr/local/bin
Install from Gcloud¶
If you already have gcloud command installed, you can install kubectl:
Check Kubectl version¶
the version command tells which client and server versions you're using.
Client Version: version.Info{Major:"1", Minor:"25", GitVersion:"v1.25.3", GitCommit:"434bfd82814af038ad94d62ebe59b133fcb50506", GitTreeState:"clean", BuildDate:"2022-10-12T10:47:25Z", GoVersion:"go1.19.2", Compiler:"gc", Platform:"darwin/amd64"}
Kustomize Version: v4.5.7
The connection to the server localhost:8080 was refused - did you specify the right host or port?
If no cluster is configured, then an error will be displayed for the Server Version. Else, the output will give infos of the current cluster:
Client Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.2"}
Server Version: version.Info{Major:"1", Minor:"20+", GitVersion:"v1.20.9-gke.1001"}
WARNING: version difference between client (1.22) and server (1.20) exceeds the supported minor version skew of +/-1
Note
as returned here, it's usually recommended to use a kubectl version + or - one version away from the server version.
Next¶
Read next chapter to lean about local Kubernetes clusters