more

3 files changed, 72 insertions, 0 deletions

diff --git a/src/systemd-nspawn/Makefile b/src/systemd-nspawn/Makefile
index 15db3ca3b2..2fe9bcc143 100644
--- a/src/systemd-nspawn/Makefile
+++ b/src/systemd-nspawn/Makefile
@@ -82,6 +82,9 @@ test_patch_uid_LDADD = \
 manual_tests += \
 	test-patch-uid
 
+dist_tmpfiles_DATA = \
+	tmpfiles.d/systemd-nspawn.conf
+
 sd.CPPFLAGS += -I$(topsrcdir)/src/libudev/src
 
 include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/systemd-nspawn/systemd-nspawn.tmpfiles b/src/systemd-nspawn/systemd-nspawn.tmpfiles
new file mode 100644
index 0000000000..9fa3878d6b
--- /dev/null
+++ b/src/systemd-nspawn/systemd-nspawn.tmpfiles
@@ -0,0 +1,23 @@
+#  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.
+
+# See tmpfiles.d(5) for details
+
+Q /var/lib/machines 0700 - - -
+
+# Remove old temporary snapshots, but only at boot. Ideally we'd have
+# "self-destroying" btrfs snapshots that go away if the last last
+# reference to it does. To mimic a scheme like this at least remove
+# the old snapshots on fresh boots, where we know they cannot be
+# referenced anymore. Note that we actually remove all temporary files
+# in /var/lib/machines/ at boot, which should be safe since the
+# directory has defined semantics. In the root directory (where
+# systemd-nspawn --ephemeral places snapshots) we are more strict, to
+# avoid removing unrelated temporary files.
+
+R! /var/lib/machines/.#*
+R! /.#machine.*
diff --git a/src/systemd-nspawn/systemd-nspawn@.service.in b/src/systemd-nspawn/systemd-nspawn@.service.in
new file mode 100644
index 0000000000..ea28941507
--- /dev/null
+++ b/src/systemd-nspawn/systemd-nspawn@.service.in
@@ -0,0 +1,46 @@
+#  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)
+PartOf=machines.target
+Before=machines.target
+After=network.target
+
+[Service]
+ExecStart=@bindir@/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
+TasksMax=8192
+
+# 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=strict
+DeviceAllow=/dev/null rwm
+DeviceAllow=/dev/zero rwm
+DeviceAllow=/dev/full rwm
+DeviceAllow=/dev/random rwm
+DeviceAllow=/dev/urandom rwm
+DeviceAllow=/dev/tty rwm
+DeviceAllow=/dev/net/tun rwm
+DeviceAllow=/dev/pts/ptmx rw
+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
+
+[Install]
+WantedBy=machines.target