This project boosts around kubectl 146 plugins and you can easily just write your own if there is something that you want to add yourself.

Just 5 months ago in Nov, 2020 there were 100 plugins , so the community is really putting work into solving problems using plugins.

Krew is a plugin manager maintained by the Kubernetes SIG CLI community.

Its is a good idea to always talk about our clusters security, so I really need to mention here that none of these plugins are audited for security by the project owners.

What is Krew and why do I want it?

Krew acts just like apt , pip, or yum in that it distributes the plugins from a central repository or ‘plugin index ‘using a simple command like this one below.

kubectl krew install <PLUGIN>

There are so many different plugins already hosted for you to download. Here is just a few interesting ones

allctx – Run commands on contexts in your kubeconfig

bulk-action – Do bulk actions on Kubernetes resources.

cluster-group – Exec commands across a group of contexts

cost – View cluster cost information

ctx – Switch between contexts in your kubeconfig

custom-cols – A “kubectl get” replacement with customizable column presets

debug-shell – Create pod with interactive kube-shell.

doctor – Scans your cluster and reports anomalies.

evict-pod – Evicts the given pod

example – Prints out example manifest YAMLs

exec-as -Like kubectl exec, but offers a `user` flag to exec as root or any other user.

exec-cronjob – Run a CronJob immediately as Job

flame – Generate CPU flame graphs from pods

fleet – Shows config and resources of a fleet of clusters

fuzzy – Fuzzy and partial string search for kubectl

gadget – Gadgets for debugging and introspecting apps

get-all – Like `kubectl get all` but _really_ everything

graph – Visualize Kubernetes resources and relationships.

grep – Filter Kubernetes resources by matching their names

images -Show container images used in the cluster.

ingress-nginx – Interact with ingress-nginx

ipick – A kubectl wrapper for interactive resource selection.

janitor – Lists objects in a problematic state

konfig – Merge, split or import kubeconfig files

krew – Package manager for kubectl plugins.

mc – Run kubectl commands against multiple clusters at once

minio – Deploy and manage MinIO Operator and Tenant(s)

modify-secret – modify secret with implicit base64 translations

neat – Remove clutter from Kubernetes manifests to make them more readable.

node-restart – Restart cluster nodes sequentially and gracefully

node-shell – Spawn a root shell on a node via kubectl

np-viewer – Network Policies rules viewer

ns – Switch between Kubernetes namespaces

open-svc – Open the Kubernetes URL(s) for the specified service in your browser.

outdated – Finds outdated container images running in a cluster

passman – Store kubeconfig credentials in keychains or password managers

pod-dive – Shows a pod’s workload tree and info inside a node

pod-inspect – Get all of a pod’s details at a glance

pod-lens – Show pod-related resources

pod-logs – Display a list of pods to get logs from

pod-shell – Display a list of pods to execute a shell in

podevents – Show events for pods

popeye – Scans your clusters for potential resource issues

preflight – Executes application preflight tests in a cluster

promdump – Dumps the head and persistent blocks of Prometheus.

prompt – Prompts for user confirmation when executing commands in critical namespaces or clusters, i.e., production.

Develop Your Own

Want to write your own Krew plugins and/or add them to the krew index? Here is a step by step guide posted below.

https://krew.sigs.k8s.io/docs/developer-guide/

There are other ways to distribute plugin besides using the Krew index. See the Kubernetes docs for great detail into making plugins in and outside of Krew.

https://kubernetes.io/docs/tasks/extend-kubectl/kubectl-plugins/

Get Krew

to get krew just follow the link and read the documentation to get started

https://krew.sigs.k8s.io/