containerd快速切换代理模式

创建配置文件夹：

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mkdir /etc/systemd/system/containerd.service.d/
mkdir /etc/ctr-proxy

创建两个配置文件：

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touch /etc/ctr-proxy/no-http-proxy.conf
cat > /etc/ctr-proxy/http-proxy.conf <<EOF
[Service]
Environment="HTTP_PROXY=http://yjy-huhc.geostar.com.cn:7897"
Environment="HTTPS_PROXY=http://yjy-huhc.geostar.com.cn:7897"
Environment="NO_PROXY=127.0.0.1,localhost,127.0.0.0/8,.geostar.com.cn,.svc,.cluster.local,10.0.0.0/8,.geori.geo,172.16.0.0/12,192.168.0.0/16"
EOF

定义命令的别名：

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cat >> ~/.bashrc<<EOF
alias setproxy='rm -f /etc/systemd/system/containerd.service.d/current.conf && ln -s /etc/ctr-proxy/http-proxy.conf /etc/systemd/system/containerd.service.d/current.conf && systemctl daemon-reload && systemctl restart containerd'
alias unsetproxy='rm -f /etc/systemd/system/containerd.service.d/current.conf && ln -s /etc/ctr-proxy/no-http-proxy.conf /etc/systemd/system/containerd.service.d/current.conf && systemctl daemon-reload && systemctl restart containerd'
EOF

source以后就可以用了：

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source ~/.bashrc
setproxy
unsetproxy