/k8sall

Run any shell command for all kubectl contexts. (kubectl all)

Primary LanguageShellMIT LicenseMIT

k8sall

A simple script to run any shell command for all kubectl contexts

Motivation

When dealing with multiple kubernetes clusters/contexts, some commands need to be run for all clusters. Switching contexts and running commands can be tedious if there are many clusters in the kubeconfig.

There is a comprehensive kubectl plugin kubectl-foreach, to run kubectl commands in multiple clusters with filters, but that does not cater for other commands such as flux, helm etc.

Prerequistes

  • kubectl
  • kubectx Kubectx is used to switch contexts since kubectl config use-context can have issues if there are old unreachable contexts in the kubeconfig

How to Run

./k8sall kubectl get nodes

Going to run: kubectl get pods   in  cluster-01
Are you sure? [y/N] y
.
.
.
Going to run: flux suspend kustomization myapp   in  cluster-02
Are you sure? [y/N]

./k8sall flux suspend kustomization myapp

Going to run: flux suspend kustomization myapp   in  cluster-01
Are you sure? [y/N] y
.
.
.
Going to run: flux suspend kustomization myapp   in  cluster-02
Are you sure? [y/N]