This reverts commit 1a0e065e9f.
This does not work as expected.
After `losetup --detach`, the kernel lazily removes the loop device.
But, systemd-dissect should gracefully handle that. If it does not, then
it is a bug in systemd-dissect.
Let's not hide the real issue in systemd-dissect.
delv on Ubuntu defaults to /etc/bind/bind.keys instead of /etc/bind.keys
when reading trust anchors, so let's create a symlink to make the test
work there as well.
Resolves: #24453
Set both timeouts to some reasonable values instead of just `infinity`
to provide some form of a safe-net in case the test goes haywire and the
environment didn't set the timeouts itself (like our CIs do).
CIs set QEMU and nspawn timeouts by themselves which reflect their needs
and possibilities, so let's respect that value, instead of using one
pre-set value which might or might not work for all of them.
Both Ubuntu CI and CentOS CI set these values themselves.
to avoid scope clashing in case some previous test crashed and/or didn't
clean up properly. Currently all test machines are called `root`, since
the name is automagically derived from the container path (in this case
`/var/tmp/systemd-test.XXXXXX/root`).
E.g. (from Ubuntu CI):
```
[23:10:12] --x-- Running TEST-71-HOSTNAME --x--
make: Entering directory '/tmp/autopkgtest.5LjnBV/build.0mE/systemd/test/TEST-71-HOSTNAME'
+ make -C TEST-71-HOSTNAME setup run
TEST-71-HOSTNAME SETUP: test hostnamed
Reusing existing cached image /tmp/autopkgtest.5LjnBV/build.0mE/systemd/test/TEST-71-HOSTNAME/../default.img → /tmp/autopkgtest.5LjnBV/build.0mE/systemd/test/default.img
'/var/tmp/systemd-test.1yy2SS/default.img' -> '/tmp/autopkgtest.5LjnBV/build.0mE/systemd/test/default.img'
I: Masking supporting services
'/var/tmp/systemd-test.1yy2SS/root/etc/systemd/system/systemd-hwdb-update.service' -> '/dev/null'
'/var/tmp/systemd-test.1yy2SS/root/etc/systemd/system/systemd-journal-catalog-update.service' -> '/dev/null'
'/var/tmp/systemd-test.1yy2SS/root/etc/systemd/system/systemd-networkd.service' -> '/dev/null'
'/var/tmp/systemd-test.1yy2SS/root/etc/systemd/system/systemd-networkd.socket' -> '/dev/null'
'/var/tmp/systemd-test.1yy2SS/root/etc/systemd/system/systemd-resolved.service' -> '/dev/null'
TEST-71-HOSTNAME RUN: test hostnamed
+ env --unset=UNIFIED_CGROUP_HIERARCHY --unset=SYSTEMD_NSPAWN_UNIFIED_HIERARCHY timeout --foreground 1200 /bin/systemd-nspawn --register=no --kill-signal=SIGKILL --directory=/var/tmp/systemd-test.1yy2SS/root --setenv=SYSTEMD_UNIT_PATH=/usr/lib/systemd/tests/testdata/testsuite-71.units:/usr/lib/systemd/tests/testdata/units: /lib/systemd/systemd systemd.unit=testsuite.target systemd.wants=testsuite-71.service systemd.wants=end.service
Spawning container root on /var/tmp/systemd-test.1yy2SS/root.
Press ^] three times within 1s to kill container.
Failed to allocate scope: Unit root.scope already exists.
E: nspawn failed with exit code 1
```
I don't see where it would ever be a good thing that file copies done
via tmpfiles.d/ C lines cause the tmpfiles operation to fail if their
source happens to be missing. It's a problem if we can't set up the
destination properly (which is the job of systemd-tmpfiles after all),
but if the source is simply missing (NB: setting up the source is the job of
of the rules writer) this shouldn't be a problem.
This is useful for copying stuff into place if it happens to exist. For
example, if systemd-stub passes additional data into the initrd's
/.extra/ directory, we can copy it into a better place (e.g. /run/) with
this, where it will survive the initrd→host transition.
This mirrors behaviour of the recently added "^" line modifier which may
be used source "w" lines from credentials – there two the behaviour is
to simply skip the line if the source is missing.
getopt allows non-ambiguous abbreviations, so backwards-compat is maintained, and
people can use --kill-who (or even shorter abbreviations). English is flexible,
so in common speach people would use both forms, even if "whom" is technically
more correct. The advantage of using the longer form in the code is that we
effectively allow both forms, so we stop punishing people who DTGCT¹, but still
allow people to use the spoken form if they prefer.
1. Do the gramatically correct thing
When a service unit Requires= a socket, and the socket is restarted while the
service is in state=activating, the propagated restart is being discarded. This
is contrary to the documentation for Requires=, which states "this unit will be
stopped (or restarted) if one of the other units is explicitly stopped (or
restarted)".
Otherwise we might never hit the trigger limit and wait indefinitely.
Found when trying to run the test on an EC2 xen machine without a nested
virt in CentOS CI (in preparations for some ... unforseseen consequences).
/bin/sh as a shell is punishing. There is no good reason to make
the occasional root login unpleasant.
Since /bin/sh is usually /bin/bash in compat mode, i.e. if one is
available, the other will be too, /bin/bash is almost as good as a default.
But to avoid a regression in the situation where /bin/bash (or
DEFAULT_USER_SHELL) is not installed, we check with access() and fall back
to /bin/sh. This should make this change in behaviour less risky.
(FWIW, e.g. Fedora/RHEL use /bin/bash as default for root.)
This is a follow-up of sorts for 53350c7bba,
which added the default-user-shell option, but most likely with the idea
of using /bin/bash less ;)
Fixes#24369.
When a service is triggered by a path unit, pass the
path unit name and the path that triggered it via env vars
to the spawned processes.
Note that this is best-effort, as there might be many triggers
at the same time, but we only get woken up by one.
Otherwise we might start writing to one of its partition before the
respective node is created under /dev, resulting in... interesting
stuff.
Resolves: #24390
The knot.service on Ubuntu Jammy loads an env file which we didn't
install, causing the service to fail:
```
knot.service: Will spawn child (service_enter_start_pre): /usr/sbin/knotc
knot.service: Failed to load environment files: No such file or directory
knot.service: Failed to run 'start-pre' task: No such file or directory
knot.service: Failed with result 'resources'.
knot.service: Service will not restart (restart setting)
```
Previously, the test would rely on the fact that systemd-hwdb would
follow symlinks outside of the --root= hierarchy. That's a bug however,
and systemd-hwdb shouldn't do that. Hence let's remove the fact that the
test relies on it, so that we can then fix systemd-hwdb (specifically:
conf_files_list()) accordingly.