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libvirtd: Explicit dependency on systemd-machined

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The libvirtd daemon uses systemd-machined D-Bus API when manipulating
domains. The systemd-machined is D-Bus activated on demand.

However, during system shutdown systemd-machined is stopped concurrently
with libvirtd and virsh users also doing their final cleanup may
transitively fail due to unavailability of systemd-machined. Example
error message

> libvirtd[1390]: 2017-12-20 18:55:56.182+0000: 32700: error : virSystemdTerminateMachine:503 : Refusing activation, D-Bus is shutting down.

To circumvent this we need to explicitly specify both ordering and
requirement dependency (to avoid late D-Bus activation) on
systemd-machined. See [1] for the dependency debate.

[1] https://lists.freedesktop.org/archives/systemd-devel/2018-January/040095.html
This commit is contained in:
Michal Koutný 2018-01-10 23:06:41 +01:00 committed by Cédric Bosdonnat
parent ed2049ea19
commit 1b0c42ff7a
1 changed files with 2 additions and 0 deletions
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daemon/libvirtd.service.in
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@ -7,6 +7,7 @@
Description=Virtualization daemon
Requires=virtlogd.socket
Requires=virtlockd.socket
Wants=systemd-machined.service
Before=libvirt-guests.service
After=network.target
After=dbus.service
@ -14,6 +15,7 @@ After=iscsid.service
After=apparmor.service
After=local-fs.target
After=remote-fs.target
After=systemd-machined.service
Documentation=man:libvirtd(8)
Documentation=https://libvirt.org