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left4me: add bw action verifying hardening drop-ins load on every apply

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Post-daemon-reload self-test that asserts both
  /etc/systemd/system/left4me-{web,server@}.service.d/10-hardening.conf
appear in `systemctl show -p DropInPaths` for the unit. Catches drift
where the symlink lands but daemon-reload didn't take, or someone
manually unlinked the drop-in.

For the gameserver template we query `left4me-server@verify.service` —
systemd resolves drop-ins for a template instance against
`name@.service.d/` regardless of whether the instance has ever started.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
CroneKorkN 2026-05-15 19:21:50 +02:00
parent d175c56e6c
commit 4820b7193f
Signed by: cronekorkn
SSH key fingerprint: SHA256:v0410ZKfuO1QHdgKBsdQNF64xmTxOF8osF1LIqwTcVw
1 changed files with 24 additions and 0 deletions
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24
bundles/left4me/items.py
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@ -173,6 +173,30 @@ actions = {
'triggered': True,
'cascade_skip': False,
},
'left4me_verify_hardening_dropins_loaded': {
# Post-apply self-test: confirm systemd actually picked up the
# hardening drop-ins we shipped via symlink. Catches the failure
# mode where the symlink lands but daemon-reload didn't take or
# someone manually unlinked the drop-in. For the gameserver template
# we query an imaginary instance — systemd resolves drop-in paths
# for `name@instance.service` against the template (`name@.service.d/`),
# so the instance need not exist or ever have run.
'command': (
'systemctl show left4me-server@verify.service -p DropInPaths --value '
'| tr " " "\\n" '
'| grep -qx /etc/systemd/system/left4me-server@.service.d/10-hardening.conf '
'&& '
'systemctl show left4me-web.service -p DropInPaths --value '
'| tr " " "\\n" '
'| grep -qx /etc/systemd/system/left4me-web.service.d/10-hardening.conf'
),
'cascade_skip': False,
'needs': [
'action:left4me_daemon_reload',
'symlink:/etc/systemd/system/left4me-web.service.d/10-hardening.conf',
'symlink:/etc/systemd/system/left4me-server@.service.d/10-hardening.conf',
],
},
'left4me_dpkg_add_i386_arch': {
# steamcmd is 32-bit and pulls libc6:i386 + lib32z1 from the i386 arch.
# apt-get update is part of this action because newly-added foreign