In mkosi, we run the test inside the VM instead of outside. To simplify
the implementation we drop the reboot part and only verify that we can
schedule and cancel shutdowns and that the wall messages are sent as
expected.
The logs from TEST-69 still contain a lot of unnecessary shell
metacharacters, so to make the output more readable let's just set
TERM=dumb, instead of having to strip everything semi-manually. Also,
move the related --background= tweak to TEST-69, since it's relevant
only for that particular test.
Follow-up for 8d4bfd38ed.
sulogin from the latest util-linux started falling back to vt102 instead
of linux, which makes screen sad (because we install only the linux
terminfo into the test image) and expect trips over the unexpected
warning. Let's just explicitly set TERM=linux before invoking screen to
avoid this.
+ make -C TEST-69-SHUTDOWN setup run
...
INFO:test-shutdown:log in and start screen
root
root
Last login: Sun Mar 3 13:19:31 from 18.191.105.60
-bash-5.2# screen
screen
Cannot find terminfo entry for 'vt102'.
-bash-5.2# ERROR:test-shutdown:Timeout exceeded.
In several Ubuntu CI jobs I noticed timeouts in TEST-69, which are
apparently caused by a very stubborn bash/login process:
$ journalctl -o short-monotonic --no-hostname --file artifacts/TEST-69-SHUTDOWN.journal
[ 2011.698430] systemd[1]: shutdown.target: starting held back, waiting for: veritysetup.target
[ 2011.698473] systemd[1]: sysinit.target: stopping held back, waiting for: user@0.service
[ 2045.884982] systemd[1]: systemd-oomd.service: Got notification message from PID 54 (WATCHDOG=1)
[ 2071.576424] systemd[1]: Received SIGCHLD from PID 65 (bash).
[ 2071.576941] systemd[1]: Child 65 (bash) died (code=killed, status=1/HUP)
[ 2071.577026] systemd[1]: session-13.scope: Child 65 belongs to session-13.scope.
[ 2071.577100] systemd[1]: session-13.scope: cgroup is empty
[ 2071.577249] systemd[1]: session-13.scope: Deactivated successfully.
$ journalctl -o short-monotonic --no-hostname --file artifacts/TEST-69-SHUTDOWN.journal _PID=65
[ 3038.661488] login[65]: ROOT LOGIN on '/dev/pts/0'
Since, in this case, we really care only about the actual shutdown,
let's shorten the service stop/abort timeouts to let systemd SIGKILL all
remaining processes in the 60s `expect` window.
/etc/bash.bashrc appears to be Debian-specific[0] (or specific to bash
versions compiled with -DSYS_BASHRC), which doesn't seem to be the case
for C8S. Let's use ~/.bashrc instead to make the CIs happy again.
[0] https://sources.debian.org/src/bash/5.1-6/debian/README/#L50-L56
Wraps nspawn to be able to use pexpect. The test logs in on the console
and runs screen. In one screen window it types in shutdown commands and
checks whether a wall message was sent to the other.
