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Install

Linux

https://krew.sigs.k8s.io/docs/user-guide/setup/install/

(
  set -x; cd "$(mktemp -d)" &&
  OS="$(uname | tr '[:upper:]' '[:lower:]')" &&
  ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')" &&
  KREW="krew-${OS}_${ARCH}" &&
  curl  $(fwdproxy-config curl) -fsSLO "https://github.com/kubernetes-sigs/krew/releases/latest/download/${KREW}.tar.gz" &&
  tar zxvf "${KREW}.tar.gz" &&
  https_proxy="http://fwdproxy:8080" ./"${KREW}" install krew
)

Example

Mac

brew install krew
kubectl krew update
kubectl krew install access-matrix

Plugins

kubectl krew install allctx
kubectl krew install access-matrix
kubectl krew install auth-proxy
kubectl krew install blame
kubectl krew install ca-cert
kubectl krew install cert-manager
kubectl krew install confirm
kubectl krew install cost
kubectl krew install custom-cols
deprecations
kubectl krew install get-all
kubectl krew install ingress-enginx
kubectl krew install kyverno
minio
neat
kubectl krew install oidc-login
rbac-lookup
rbac-tool
resource-capacity
sniff
skew
slice
starboard
tail
kubectl krew install tree
who-can
whoami

Note: If you are operating within a proxy environment, you must prepend the proxy before executing the commands. For example:

https_proxy="http://fwdproxy:8080" kubectl krew install tree

Examples

Check Deprecated/Deleted APIs

$ https_proxy="http://fwdproxy:8080" k deprecations --k8s-version=v1.26.0

example

Tree

$ k tree deploy alpine-deployment
NAMESPACE  NAME                                        READY  REASON  AGE
default    Deployment/alpine-deployment                -              15m
default    └─ReplicaSet/alpine-deployment-6bc7894dbc   -              15m
default      ├─Pod/alpine-deployment-6bc7894dbc-6cvbn  True           15m
default      ├─Pod/alpine-deployment-6bc7894dbc-6r4zq  True           15m
default      └─Pod/alpine-deployment-6bc7894dbc-7c6mt  True           15m

Slice a big yaml into separate components

$ k slice -f coredns.yaml -o ./test
$ tree test/
test/
├── clusterrolebinding-system:coredns.yaml
├── clusterrole-system:coredns.yaml
├── configmap-coredns.yaml
├── deployment-coredns.yaml
├── serviceaccount-coredns.yaml
└── service-coredns.yaml