Running as a service
By running Mopidy as a system service, using e.g. systemd, it will automatically be started when your system starts. This is the preferred way to run Mopidy for most users.
The exact way Mopidy behaves when it runs as a service might vary depending on your operating system or distribution. The following applies to Debian, Ubuntu, Raspberry Pi OS, and Arch Linux. Hopefully, other distributions packaging Mopidy will make sure this works the same way on their distribution.
Configuration
When running Mopidy as a system service, configuration is read from
/etc/mopidy/mopidy.conf, and not from ~/.config/mopidy/mopidy.conf.
To print Mopidy's effective configuration, i.e. the combination of defaults, your configuration file, and any command line options, you can run:
$ sudo mopidyctl config
This will print your full effective config with passwords masked out so that you safely can share the output with others for debugging.
Service user
The Mopidy system service runs as the mopidy user, which is
automatically created when you install the Mopidy package. The mopidy
user will need read access to any local music you want Mopidy to play.
Distribution packaging
If you're packaging Mopidy for a new distribution, make sure to
automatically create the mopidy user when the package is installed.
Subcommands
To run Mopidy subcommands with the same user and config files as the
service uses, you should use sudo mopidyctl <subcommand>.
In other words, where someone running Mopidy manually in a terminal would run:
$ mopidy <subcommand>
You should instead run the following:
$ sudo mopidyctl <subcommand>
Distribution packaging
If you're packaging Mopidy for a new distribution, you'll find the
mopidyctl command in the extra/mopidyctl/ directory in the Mopidy Git
repository.
Service management with systemd
On systems using systemd you can enable the Mopidy service by running:
$ sudo systemctl enable mopidy
This will make Mopidy automatically start when the system starts.
Mopidy is started, stopped, and restarted just like any other systemd service:
$ sudo systemctl start mopidy
$ sudo systemctl stop mopidy
$ sudo systemctl restart mopidy
You can check if Mopidy is currently running as a service by running:
$ sudo systemctl status mopidy
You can use journalctl to view Mopidy's log, including important
error messages:
$ sudo journalctl -u mopidy
journalctl has many useful options, including -f/--follow and
-e/--pager-end, so please check out journalctl --help and
man journalctl.
Service management on macOS
On macOS, you can use launchctl to start Mopidy automatically at login
as your own user.
If you installed Mopidy from Homebrew, simply run brew info mopidy and
follow the instructions in the "Caveats" section:
$ brew info mopidy
...
==> Caveats
To have launchd start mopidy/mopidy/mopidy now and restart at login:
brew services start mopidy/mopidy/mopidy
Or, if you don't want/need a background service, you can just run:
mopidy
See brew services --help for how to start/restart/stop the service.
If you happen to be on macOS, but didn't install Mopidy with Homebrew,
you can get the same effect by adding the file
~/Library/LaunchAgents/mopidy.plist with the following contents:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>mopidy</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/bin/mopidy</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
</dict>
</plist>
You might need to adjust the path to the mopidy executable,
/usr/local/bin/mopidy, to match your system.
Then, to start Mopidy with launchctl right away:
$ launchctl load ~/Library/LaunchAgents/mopidy.plist
Audio daemons
If you use PulseAudio or PipeWire, the system service runs as its own user and can't access your user-level audio daemon directly. See the dedicated guides for how to configure each: