Lennart Poettering d36bdc9467 sysupdate: notify hook subscribers after a successful update
Define a new io.systemd.SysUpdate.Notify Varlink interface with a single
OnCompletedUpdate() method, and after sysupdate successfully installs an
update, invoke that method on every socket linked into
/run/systemd/sysupdate/notify/ via varlink_execute_directory(). This
gives other components a hook to react to applied updates (e.g. recompute
a TPM policy, link a freshly downloaded kernel, refresh extensions).

The notification carries the component name, the installed version and the
list of updated resources (transfer id + on-disk path). Subscribers are
free to ignore the parameters and just treat the call as a trigger.

Setting SYSTEMD_SYSUPDATE_FORCE_NOTIFY=1 forces the notification to be sent
even when no update was applied (in which case no resource list is included),
so follow-up work can be triggered unconditionally.

Fixes: #35988
2026-06-24 13:05:33 +02:00
2022-04-26 09:13:57 +00:00
2025-03-07 17:27:20 +01:00
2026-04-18 14:24:47 +01:00
2026-06-17 09:59:34 +00:00
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2026-03-06 08:55:55 +01:00
2025-10-07 13:00:12 +01:00
2026-06-22 10:39:36 +02:00
2026-06-23 23:10:02 +02:00

Systemd

System and Service Manager

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