[쿠버네티스] 플러그인 패키지 매니저 krew설치

홈페이지 : https://krew.sigs.k8s.io/docs/user-guide/quickstart/

Quickstart · Krew

1. 다운로드 & 설치

shell

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(
​​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}_${ARCH}" &&
​​curl -fsSLO "https://github.com/kubernetes-sigs/krew/releases/latest/download/${KREW}.tar.gz" &&
​​tar zxvf "${KREW}.tar.gz" &&
​​./"${KREW}" install krew
)

2. 환경변수 설정

vi .bashrc

shell

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# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
#if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
#    . /etc/bash_completion
#fi
source <(kubectl completion bash)

# krew 환경변수 추가
export PATH="${KREW_ROOT:-$HOME/.krew}/bin:$PATH"

적용

source .bashrc   

3. krew가 실행 되는지 확인

shell

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root@master:~# kubectl krew
krew is the kubectl plugin manager.
You can invoke krew through kubectl: "kubectl krew [command]..."

Usage:
​​kubectl krew [command]

Available Commands:
​​help        Help about any command
​​index       Manage custom plugin indexes
​​info        Show information about an available plugin
​​install     Install kubectl plugins
​​list        List installed kubectl plugins
​​search      Discover kubectl plugins
​​uninstall   Uninstall plugins
​​update      Update the local copy of the plugin index
​​upgrade     Upgrade installed plugins to newer versions
​​version     Show krew version and diagnostics

Flags:
​​-h, --help      help for krew
​​-v, --v Level   number for the log level verbosity

Use "kubectl krew [command] --help" for more information about a command.

4. 사용가능한 플러그인 검색

 - kubectl krew update

 - kubectl krew search

shell

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검색 키워드를 인수로 지정할 수 있습니다.

kubectl krew search pod

NAME                DESCRIPTION                                         INSTALLED
evict-pod           Evicts the given pod                                no
pod-dive            Shows a pod's workload tree and info inside a node  no
pod-logs            Display a list of pods to get logs from             no
pod-shell           Display a list of pods to execute a shell in        no
rm-standalone-pods  Remove all pods without owner references            no
support-bundle      Creates support bundles for off-cluster analysis    no
플러그인에 대해 자세히 알아보기
플러그인에 대한 자세한 정보를 얻으려면 다음을 실행하세요 kubectl krew info <PLUGIN>.

​kubectl krew info tree

NAME: tree
VERSION: v0.4.0
DESCRIPTION:
​​This plugin shows sub-resources of a specified Kubernetes API object in a
​​tree view in the command-line. The parent-child relationship is discovered
​​using ownerReferences on the child object.
...

 

root@master:~# kubectl krew search exec-as
NAME      DESCRIPTION                                         INSTALLED
exec-as   Like kubectl exec, but offers a `user` flag to ...  no
htpasswd  Create nginx-ingress compatible basic-auth secrets  no

/* 검색후 설치 */

kubectl krew install exec-as