Kubectl插件之dumpy

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kubectl krew install dumpy

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curl -L -O https://github.com/larryTheSlap/dumpy/releases/download/v0.1.0/dumpy_Linux_x86_64.tar.gz
tar xf dumpy_Linux_x86_64.tar.gz 
chmod +x kubectl-dumpy && sudo mv kubectl-dumpy /usr/bin/kubectl-dumpy

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# 在 default 名称空间创建一个名为 capture-ingress-nginx 捕获器, 用于捕获 default 名称空间的 deployment nginx
(⎈|mykind) ➜ ~ k dumpy capture deployment nginx -n default -t default --name capture-nginx -f '-i any' --image registry.cn-hangzhou.aliyuncs.com/soulchild/dumpy:0.2.0

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(⎈|mykind) ➜ ~ k dumpy get capture-nginx
Getting capture details..

name: capture-nginx
namespace: default
tcpdumpfilters: -i any
image: registry.cn-hangzhou.aliyuncs.com/soulchild/dumpy:0.2.0
targetSpec:
    name: nginx
    namespace: default
    type: deployment
    container: nginx
    items:
        nginx-7dbbdcd99d-dz9r5  <-----  sniffer-capture-nginx-1761 [Running]
        nginx-7dbbdcd99d-g82gc  <-----  sniffer-capture-nginx-9964 [Running]
pvc:
pullsecret:

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# 导出之前可以看看 pod 日志有没有捕获到流量
(⎈|mykind) ➜ ~ k logs sniffer-capture-nginx-1761

# 导出 capture-nginx 捕获器的 pcap 到当前目录 -n 指定捕获器所在的名称空间
(⎈|mykind) ➜ ~ k dumpy export capture-nginx ./ -n default

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(⎈|mykind) ➜ ~ k dumpy restart capture-nginx

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(⎈|mykind) ➜ ~ k dumpy restart capture-nginx -f '-i eth0'

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(⎈|mykind) ➜ ~ k dumpy stop capture-nginx -n default

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(⎈|mykind) ➜ ~ k dumpy delete capture-nginx -n default