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libvirt/daemon/libvirtd.service.in

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SYSTEMD
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Add support for systemd init service This patch adds support for a systemd init service for libvirtd and libvirt-guests. The libvirtd.service is *not* written to use socket activation, since we want libvirtd to start on boot so it can do guest auto-start. The libvirt-guests.service is pretty lame, just exec'ing the original init script for now. Ideally we would factor out the functionality, into some shared tool. Instead of ./configure --with-init-script=redhat You can now do ./configure --with-init-script=systemd Or better still: ./configure --with-init-script=systemd+redhat We can also now support install of the upstart init script * configure.ac: Add systemd, and systemd+redhat options to --with-init-script option * daemon/Makefile.am: Install systemd services * daemon/libvirtd.sysconf: Add note about unused env variable with systemd * daemon/libvirtd.service.in: libvirtd systemd service unit * libvirt.spec.in: Add scripts to installing systemd services and migrating from legacy init scripts * tools/Makefile.am: Install systemd services * tools/libvirt-guests.init.sh: Rename to tools/libvirt-guests.init.in * tools/libvirt-guests.service.in: systemd service unit
2011-07-07 21:45:07 +08:00
# NB we don't use socket activation. When libvirtd starts it will
# spawn any virtual machines registered for autostart. We want this
# to occur on every boot, regardless of whether any client connects
# to a socket. Thus socket activation doesn't have any benefit
[Unit]
Description=Virtualization daemon
Before=libvirt-guests.service
systemd: start libvirtd after network Domains configured with autostart may fail to start if the host network stack has not been started. E.g. when using bridged networking autostarting a domain can fail with libvirtd[1403]: 2012-06-20 13:23:49.833+0000: 1485: error : qemuAutostartDomain:177 : Failed to autostart VM 'test': Cannot get interface MTU on 'br0': No such device
2012-07-09 23:52:55 +08:00
After=network.target
systemd: require dbus service https://bugzilla.redhat.com/show_bug.cgi?id=830201 The initscript and upstart services depend on dbus starting before libvirtd. When we first wrote the systemd script, we tried to do the same, but we depended on dbus.target (which does not exist) in comparison to network.target (which does exist), so we removed that in commit 4c7973e. But we still need dbus up and running first, especially now that we want to support shutdown inhibition via dbus (whereas we originally needed dbus only for firewall control). http://www.freedesktop.org/software/systemd/man/systemd.target.html explains how a target (such as network.target) is just a collection of common services bundled together, and why we want network.target but dbus.service. * daemon/libvirtd.service.in (Unit): Depend on dbus starting first.
2012-12-05 11:43:04 +08:00
After=dbus.service
libvirt does not logout of iscsi targets, causing system hang on shutdown There's a quite old bug entry here: https://bugzilla.redhat.com/show_bug.cgi?id=700010 I just stumbled over that very issue on F18. Doing a little bit debugging of the shutdown sequence, it turns out that - at least on my F18 installation - libvirtd is shutdown *after* iscsid, which makes it impossible for libvirt to perform the logout of the iscsi session properly. This patch simply adds another startup dependancy on iscsid.service which in turn delays iscsid shutdown until after libvirtd has stopped. Having that applied, the system shuts down properly again. Signed-off-by: Eric Blake <eblake@redhat.com>
2013-03-01 04:46:19 +08:00
After=iscsid.service
Add support for systemd init service This patch adds support for a systemd init service for libvirtd and libvirt-guests. The libvirtd.service is *not* written to use socket activation, since we want libvirtd to start on boot so it can do guest auto-start. The libvirt-guests.service is pretty lame, just exec'ing the original init script for now. Ideally we would factor out the functionality, into some shared tool. Instead of ./configure --with-init-script=redhat You can now do ./configure --with-init-script=systemd Or better still: ./configure --with-init-script=systemd+redhat We can also now support install of the upstart init script * configure.ac: Add systemd, and systemd+redhat options to --with-init-script option * daemon/Makefile.am: Install systemd services * daemon/libvirtd.sysconf: Add note about unused env variable with systemd * daemon/libvirtd.service.in: libvirtd systemd service unit * libvirt.spec.in: Add scripts to installing systemd services and migrating from legacy init scripts * tools/Makefile.am: Install systemd services * tools/libvirt-guests.init.sh: Rename to tools/libvirt-guests.init.in * tools/libvirt-guests.service.in: systemd service unit
2011-07-07 21:45:07 +08:00
[Service]
EnvironmentFile=-/etc/sysconfig/libvirtd
ExecStart=@sbindir@/libvirtd $LIBVIRTD_ARGS
ExecReload=/bin/kill -HUP $MAINPID
Leave all child processes running when stopping systemd service Currently the libvirt.service unit file for systemd does not specify any kill mode. So systemd kills off every process inside its cgroup. ie all dnsmasq processes, all virtual machines. This obviously not what we want. Set KillMode=process so that it only kills the top level process of libvirtd * daemon/libvirtd.service.in: Add KillMode=process Reported-By: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-03-22 22:01:12 +08:00
KillMode=process
Configuring systemd to restart libvirt on failure This will create a respawn behaviour in case libvirt process exits due to nonzero exit code, is terminated by a signal, an operation times out or the configured watchdog timeout is triggered. see http://www.freedesktop.org/software/systemd/man/systemd.service.html and https://bugzilla.redhat.com/show_bug.cgi?id=981974 Signed-off-by: Eric Blake <eblake@redhat.com>
2013-07-30 20:32:59 +08:00
Restart=on-failure
daemon: Allow overriding NOFILES ulimit for the daemon as well One of my latest patches (d8db0f9690) created support for setting the limit for the maximum of opened files by qemu user. However, since libvirtd keeps one FD opened per domain (well, for qemu at least) it will likely hit this limit on huge scenarios.
2012-01-13 01:47:30 +08:00
# Override the maximum number of opened files
#LimitNOFILE=2048
Add support for systemd init service This patch adds support for a systemd init service for libvirtd and libvirt-guests. The libvirtd.service is *not* written to use socket activation, since we want libvirtd to start on boot so it can do guest auto-start. The libvirt-guests.service is pretty lame, just exec'ing the original init script for now. Ideally we would factor out the functionality, into some shared tool. Instead of ./configure --with-init-script=redhat You can now do ./configure --with-init-script=systemd Or better still: ./configure --with-init-script=systemd+redhat We can also now support install of the upstart init script * configure.ac: Add systemd, and systemd+redhat options to --with-init-script option * daemon/Makefile.am: Install systemd services * daemon/libvirtd.sysconf: Add note about unused env variable with systemd * daemon/libvirtd.service.in: libvirtd systemd service unit * libvirt.spec.in: Add scripts to installing systemd services and migrating from legacy init scripts * tools/Makefile.am: Install systemd services * tools/libvirt-guests.init.sh: Rename to tools/libvirt-guests.init.in * tools/libvirt-guests.service.in: systemd service unit
2011-07-07 21:45:07 +08:00
[Install]
WantedBy=multi-user.target