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.
Given that the test involves screen(1), sending various control sequences to
resize/clear the screen, most of the logs sent from the python script were
nearly impossible to read or mixed with other messages sent to the console
hence making the debug harder when the test is run manually.
This patch introduces an option to redirect the pexpect IOs into a file (to be
used in $STATEDIR/TEST-69-SHUTDOWN/run-nspawn).
The pexpect logs are also enabled later so the boot logs are skipped since
those are already included in the journal.
The terminate() method sends SIGHUP but this signal is not handled by
systemd-nspawn hence the process just exits leaving the container scope around
breaking futher test executions.
This patch sends SIGTERM instead which is a defined API to request
sytemd-nspawn to stop and release the container's resources properly.
Follow-up for 8a7032cfb1.
Otherwise the `terminate()` method sends SIGKILL rather quickly (~0.3s),
which then leaves a dangling scope on the host system, breaking further
test executions.
TEST-69 uses a Python wrapper around the systemd-nspawn call, which on
error calls the `spawn.terminate()` method. However, with no arguments
it will only use SIGHUP and SIGINT signals - this might leave a stuck
container around, causing fails if the test is run again. With `force=True`
SIGKILL is used as well (if necessary).
Those messages simply *feel* dated: "The system is going for suspend NOW!".
Let's say "The system will suspend|power off|hibernate|… now!" instead.
The exclamation mark is enough to show the urgency.
Also, the "the" seemed out of place. We're not talking about a specific reboot.
as it may take a bit longer on slower machines:
```
[ OK ] Reached target System Reboot.
Found cgroup2 on /sys/fs/cgroup/, full unified hierarchy
Failed to open watchdog device /dev/watchdog0, ignoring: No such file or directory
binfmt_misc is not mounted, not detaching entries.
Sending SIGTERM to remaining processes...
ERROR:test-shutdown:Timeout exceeded.
<pexpect.pty_spawn.spawn object at 0x7f3d4bcd20b0>
command: /systemd-meson-build/systemd-nspawn
<...snip...>
buffer (last 100 chars): 'mbinfmt_misc is not mounted, not detaching entries.\x1b[0m\r\nSending SIGTERM to remaining processes...\r\n'
before (last 100 chars): 'mbinfmt_misc is not mounted, not detaching entries.\x1b[0m\r\nSending SIGTERM to remaining processes...\r\n'
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 572528
child_fd: 5
closed: False
timeout: 30
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>
logfile_read: None
logfile_send: None
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 0.1
delayafterterminate: 0.1
searcher: searcher_re:
0: re.compile('H login: ')
INFO:test-shutdown:killing child pid 572528
E: nspawn failed with exit code 1
```
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.
