diff options
| author | Lennart Poettering <lennart@poettering.net> | 2015-06-15 19:24:43 +0200 |
|---|---|---|
| committer | Sven Eden <yamakuzure@gmx.net> | 2017-03-14 10:03:02 +0100 |
| commit | 75f28e3cd94d18d7fc437714de032ac087b46d6b (patch) | |
| tree | 5235ecab121d12844e2bf24fb8c0306fe817c629 /tmpfiles.d | |
| parent | e7fadef378f4f0df0925aca2f5c062d0b02c343a (diff) | |
tmpfiles: automatically remove old machine snapshots at boot
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.
This also splits out nspawn/container related tmpfiles bits into a new
tmpfiles snippet to systemd-nspawn.conf
Diffstat (limited to 'tmpfiles.d')
| -rw-r--r-- | tmpfiles.d/systemd-nspawn.conf | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tmpfiles.d/systemd-nspawn.conf b/tmpfiles.d/systemd-nspawn.conf new file mode 100644 index 000000000..5a3124a0f --- /dev/null +++ b/tmpfiles.d/systemd-nspawn.conf @@ -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 + +v /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.* |