1 files changed, 52 insertions, 0 deletions
diff --git a/units/systemd-nspawn@.service.in b/units/systemd-nspawn@.service.in
new file mode 100644
index 0000000..ff66d40
--- /dev/null
+++ b/units/systemd-nspawn@.service.in
@@ -0,0 +1,52 @@
+#  SPDX-License-Identifier: LGPL-2.1-or-later
+#
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=Container %i
+Documentation=man:systemd-nspawn(1)
+Wants=modprobe@tun.service modprobe@loop.service modprobe@dm_mod.service
+PartOf=machines.target
+Before=machines.target
+After=network.target modprobe@tun.service modprobe@loop.service modprobe@dm_mod.service
+RequiresMountsFor=/var/lib/machines/%i
+
+[Service]
+# Make sure the DeviceAllow= lines below can properly resolve the 'block-loop' expression (and others)
+ExecStart=systemd-nspawn --quiet --keep-unit --boot --link-journal=try-guest --network-veth -U --settings=override --machine=%i
+KillMode=mixed
+Type=notify
+RestartForceExitStatus=133
+SuccessExitStatus=133
+Slice=machine.slice
+Delegate=yes
+DelegateSubgroup=supervisor
+CoredumpReceive=yes
+TasksMax=16384
+{{SERVICE_WATCHDOG}}
+
+{# Enforce a strict device policy, similar to the one nspawn configures when it
+ # allocates its own scope unit. Make sure to keep these policies in sync if you
+ # change them! #}
+DevicePolicy=closed
+DeviceAllow=/dev/net/tun rwm
+DeviceAllow=char-pts rw
+
+# nspawn itself needs access to /dev/loop-control and /dev/loop, to implement
+# the --image= option. Add these here, too.
+DeviceAllow=/dev/loop-control rw
+DeviceAllow=block-loop rw
+DeviceAllow=block-blkext rw
+
+# nspawn can set up LUKS encrypted loopback files, in which case it needs
+# access to /dev/mapper/control and the block devices /dev/mapper/*.
+DeviceAllow=/dev/mapper/control rw
+DeviceAllow=block-device-mapper rw
+
+[Install]
+WantedBy=machines.target