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1a3704dcc3
Let's make use of the new DelegateSubgroup= feature and delegate the /supervisor/ subcgroup already to nspawn, so that moving the supervisor process there is unnecessary.
52 lines
1.7 KiB
SYSTEMD
52 lines
1.7 KiB
SYSTEMD
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Container %i
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Documentation=man:systemd-nspawn(1)
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Wants=modprobe@tun.service modprobe@loop.service modprobe@dm_mod.service
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PartOf=machines.target
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Before=machines.target
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After=network.target modprobe@tun.service modprobe@loop.service modprobe@dm_mod.service
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RequiresMountsFor=/var/lib/machines/%i
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[Service]
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# Make sure the DeviceAllow= lines below can properly resolve the 'block-loop' expression (and others)
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ExecStart=systemd-nspawn --quiet --keep-unit --boot --link-journal=try-guest --network-veth -U --settings=override --machine=%i
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KillMode=mixed
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Type=notify
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RestartForceExitStatus=133
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SuccessExitStatus=133
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Slice=machine.slice
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Delegate=yes
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DelegateSubgroup=supervisor
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TasksMax=16384
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{{SERVICE_WATCHDOG}}
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{# Enforce a strict device policy, similar to the one nspawn configures when it
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# allocates its own scope unit. Make sure to keep these policies in sync if you
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# change them! #}
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DevicePolicy=closed
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DeviceAllow=/dev/net/tun rwm
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DeviceAllow=char-pts rw
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# nspawn itself needs access to /dev/loop-control and /dev/loop, to implement
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# the --image= option. Add these here, too.
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DeviceAllow=/dev/loop-control rw
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DeviceAllow=block-loop rw
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DeviceAllow=block-blkext rw
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# nspawn can set up LUKS encrypted loopback files, in which case it needs
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# access to /dev/mapper/control and the block devices /dev/mapper/*.
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DeviceAllow=/dev/mapper/control rw
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DeviceAllow=block-device-mapper rw
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[Install]
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WantedBy=machines.target
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