[Bug 1977896] [NEW] [SRU] Log flood when installing acpid and acpi-support inside a 22.04 container

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You have been subscribed to a public bug by Luís Infante da Câmara (luis220413):

[Impact]
The acpid.service unit contains `ConditionVirtualization=!container` but something keeps asking systemd to start the acpid service which is not possible due to the unmet condition (!container).

The acpid.path unit contains `DirectoryNotEmpty=/etc/acpi/events/`
meaning that it uses inotify to trigger the acpid.service which is
probably what's causing the endless loop.

This SRU fixes this by adding `ConditionVirtualization=!container` to
acpid.path and acpid.socket, that is listed in the Requires of
acpid.service.

[Test Plan]
1) Create Jammy and Focal containers
lxc launch ubuntu:22.04 jammy-ctn
lxc launch ubuntu:20.04 focal-ctn
2) Install acpid and acpi-support in the Jammy container
lxc exec jammy-ctn -- apt-get update
lxc exec jammy-ctn -- apt-get install -Vy acpid acpi-support
3) Check the logs while apt is stalled at "Setting up acpi-support"
lxc exec jammy-ctn -- journalctl -fu acpid.service
4) Stop the Jammy container
lxc stop jammy-ctn
5) Install acpid and acpi-support in the Focal container
lxc exec focal-ctn -- apt-get update
lxc exec focal-ctn -- apt-get install -Vy acpid acpi-support
6) Check the logs while apt is stalled at "Setting up acpi-support", if it gets stalled, or after the installation otherwise
lxc exec focal-ctn -- journalctl -fu acpid.service

3) will show a huge flood of, and 6) will show several of:

Jun 07 23:42:50 jammy-ctn systemd[1]: Condition check resulted in ACPI
event daemon being skipped.

A workaround is to empty /etc/acpi/events with:

lxc exec $CONTAINER -- sh -c 'mv /etc/acpi/events/* /tmp/'

[Where problems could occur]
This could affect non-container environments, such as native Ubuntu machines and Ubuntu VMs.

** Affects: acpid (Ubuntu)
     Importance: Undecided
     Assignee: Luís Infante da Câmara (luis220413)
         Status: Fix Released

** Affects: acpid (Debian)
     Importance: Unknown
         Status: Fix Released

-- 
[SRU] Log flood when installing acpid and acpi-support inside a 22.04 container
https://bugs.launchpad.net/bugs/1977896
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