This article describes how to use another user than the default root user in Docker.
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<SMARTIDHOME> In this article, <SMARTIDHOME> refers to /home/nexus, but this can be different depending on the setup. |
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Mapping in a normal docker installation
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/var/run/docker.sock:/var/run/docker.sock:ro
In rootless docker, this file does not exist on the host machine. If your user with which you start docker, has ID 1000 (you can find this by running id -u) the mapping has to be like this:
Mapping in rootless docker
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/run/user/1000/docker.sock:/var/run/docker.sock:ro
Map certificates
Make sure that the certificates in <SMARTIDHOME>/docker/compose/cacerts have the right permissions (755), if they don't you'll face issues when the containers try to use them.
Run this command to recursively set the permissions on all files inside the cacerts folder to 755:
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chmod
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-R
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755
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<SMARTIDHOME>/docker/compose/cacerts
Troubleshooting
Here are some useful troubleshooting tips:
Docker rootless fails to install
Consider setting this environment variable:FORCE_ROOTLESS_INSTALL=1When executing
systemctl --userI have this following error :Failed to connect to bus: No such file or directory
There are only services enabled for the system, but not for the user.
See https://superuser.com/questions/1561076/systemctl-use-failed-to-connect-to-bus-no-such-file-or-directory-debian-9Application (like traefik) fails to open port on the host machine.
Ports are restricted by your host, there are different ways how to fix that depending on your operating system.
See https://superuser.com/questions/710253/allow-non-root-process-to-bind-to-port-80-and-443