Enable systemd service via python

Question

According to Starting a systemd service via python I can use D-Bus API for starting/stopping Systemd services as following:

import dbus
sysbus = dbus.SystemBus()
systemd1 = sysbus.get_object('org.freedesktop.systemd1', '/org/freedesktop/systemd1')
manager = dbus.Interface(systemd1, 'org.freedesktop.systemd1.Manager')
job = manager.RestartUnit('sshd.service', 'fail')

But what if I want to enable a systemd service there. I already tried replacing RestartUnit with EnableUnit, but I got:

dbus.exceptions.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Unknown method EnableUnit or interface org.freedesktop.systemd1.Manager.

@Terry Actually I couldn't find the docs and I though they didn't managed to write them yet! — Danial Behzadi
– Danial Behzadi, Commented Sep 7, 2020 at 6:07

Danial Behzadi · Accepted Answer · 2020-09-07 06:45:02Z

1

OK. I figured it out thanks to Terry Spotts.

job = manager.EnableUnitFiles(['ssh.service'], False, True)
manager.Reload()

First argument is a list of systemd unit file names.

Second argument is a boolean controls whether the unit shall be enabled for runtime only (true, /run), or persistently (false, /etc).

Third argument is a boolean controls whether symlinks pointing to other units shall be replaced if necessary.

answered Sep 7, 2020 at 6:45

Danial Behzadi

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