How docker accesses the Internet through a proxy

You need to add an Internet proxy in the docker configuration file.

The specific method is as follows:

1. Edit /usr/lib/systemd/system/docker.service and add the following two paragraphs

# vim /usr/lib/systemd/system/docker.service 
......
Environment="HTTP_PROXY=代理url"        < 追加
Environment="HTTPS_PROXY=代理url"      < 追加
......

2. Restart docker.service Service

# systemctl daemon-reload
# systemctl restart docker.service

3. Finally test whether docker can connect to the Internet

# docker run -it openshift/hello-openshift

Recommended tutorial: docker tutorial

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