How to find the docker configuration file

CentOS 7 uses systemd to manage the docker process. So if we want to know the file location of docker, we can check the configuration of systemd.

Use the command to view the systemd configuration of docker:

cat /usr/lib/systemd/system/docker.service

As shown below:

You can see that the configuration file started by systemd is configured by the environment The variables are obtained, and the environment variables are in /etc/sysconfig/docker, /etc/sysconfig/docker-storage, /etc/sysconfig/docker-network, and can be viewed in sequence.

Recommended tutorial: docker tutorial

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