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k9s란?
k8s(쿠버네티스) 클러스터를 제어하기 위해 보통 kubectl 을 사용하는데 오늘 한 크루가 k9s라는것을 사용하는것을 보았다.
터미널에서 제어를 하는거였는데 좀 더 편하게 쿠버네티스를 제어할 수 있다고 한다. 그래서 설치를 해보고 사용해보려고 한다.
장단점으로 k9s를 바로 사용한다면 kubctl의 명령어들에 대해서 점점 더 잊혀질 가능성이 크다.
하지만 매우 편할것 같긴하다. 일단 둘 다 사용해보는걸로 하자!
셋팅-macOS 기준
brew install k9s 명령어로 인스톨 해줍니다.
brew install k9s
Running `brew update --preinstall`...
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==> Pouring portable-ruby-2.6.8_1.el_capitan.bottle.tar.gz
==> Auto-updated Homebrew!
Updated 2 taps (homebrew/core and homebrew/cask).
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aws-nuke dtrx eget groestlcoin jackett maclaunch nali ohdear-cli pacmc pg_partman stencil teller yorkie
cfonts dump1090-mutability glider install-peerdeps kics mariadb@10.7 oak opencl-headers pg_cron redis@6.2 synergy-core toxcore zx
==> New Casks
amazon-luna audiostellar elephicon localxpose orion psst sol swiftcord
app-fair ecamm-live jpc-qlcolorcode orangedrangon-android-messages phpwebstudy rustdesk sonixd
You have 46 outdated formulae installed.
You can upgrade them with brew upgrade
or list them with brew outdated.
==> Downloading https://ghcr.io/v2/homebrew/core/k9s/manifests/0.25.18
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==> Pouring k9s--0.25.18.big_sur.bottle.tar.gz
==> Caveats
zsh completions have been installed to:
/usr/local/share/zsh/site-functions
==> Summary
🍺 /usr/local/Cellar/k9s/0.25.18: 9 files, 65MB
==> Running `brew cleanup k9s`...
Disable this behaviour by setting HOMEBREW_NO_INSTALL_CLEANUP.
Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).k9s가 설치가 되었으니 이제 사용을 해보자.
우선 help 명령어로 어떤 명령어들이 있는지 확인해보자.
k9s help
k9s help
K9s is a CLI to view and manage your Kubernetes clusters.
Usage:
k9s [flags]
k9s [command]
Available Commands:
completion generate the autocompletion script for the specified shell
help Help about any command
info Print configuration info
version Print version/build info
Flags:
-A, --all-namespaces Launch K9s in all namespaces
--as string Username to impersonate for the operation
--as-group stringArray Group to impersonate for the operation
--certificate-authority string Path to a cert file for the certificate authority
--client-certificate string Path to a client certificate file for TLS
--client-key string Path to a client key file for TLS
--cluster string The name of the kubeconfig cluster to use
-c, --command string Overrides the default resource to load when the application launches
--context string The name of the kubeconfig context to use
--crumbsless Turn K9s crumbs off
--headless Turn K9s header off
-h, --help help for k9s
--insecure-skip-tls-verify If true, the server's caCertFile will not be checked for validity
--kubeconfig string Path to the kubeconfig file to use for CLI requests
--logFile string Specify the log file (default "/var/folders/01/fvtf676d7b5_jpnvxs9vwjg40000gn/T/k9s-terrypark.log")
-l, --logLevel string Specify a log level (info, warn, debug, trace, error) (default "info")
--logoless Turn K9s logo off
-n, --namespace string If present, the namespace scope for this CLI request
--readonly Sets readOnly mode by overriding readOnly configuration setting
-r, --refresh int Specify the default refresh rate as an integer (sec) (default 2)
--request-timeout string The length of time to wait before giving up on a single server request
--screen-dump-dir string Sets a path to a dir for a screen dumps
--token string Bearer token for authentication to the API server
--user string The name of the kubeconfig user to use
--write Sets write mode by overriding the readOnly configuration setting
Use "k9s [command] --help" for more information about a command.명령어
k9s -c 옵션으로 pod를 쳐보자.
k9s -c pod
원하는 pod에서 l 키를 누르면 로그가 나오고 d를 누르면 pod에 대한 상세설명이 나온다.
그리고 ? 누르면 k9s에서 사용가능한 전체 단축기들이 나온다.
뭔가 UI로 보이니 편하긴한것 같다.
kubctl 과 k9s 모두 사용해보도록 하자~
끝~
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