背景
和上一篇文章类似，墙内世界自己推送了image之后， 服务器(我的环境是centos)上拉取也得使用代理。
但是最近很多伙伴反馈只简单的更新环境变量没有效果，通过文档上面更新docker daemon.json 也没有效果
解决
还是参考官方文档， 使用 systemd unit file
- Create a systemd drop-in directory for the docker service:
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| sudo mkdir -p /etc/systemd/system/docker.service.d
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- Create a file named /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
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| [Service]
Environment="HTTP_PROXY=http://127.0.0.1:7890"
Environment="HTTPS_PROXY=http://127.0.0.1:7890"
Environment="NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp"
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- Flush changes and restart Docker
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| sudo systemctl daemon-reload
sudo systemctl restart docker
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- Verify that the configuration has been loaded and matches the changes you made, for example:
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| sudo systemctl show --property=Environment docker
Environment=HTTP_PROXY=http://127.0.0.1:7890 HTTPS_PROXY=http://127.0.0.1:7890 NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp
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注意
我偷懒只写了http_proxy， 结果发现没有效果， 请一定不能省略https_proxy