As suggested in PR #3667.
This PR simply ensures that --template= can be used as alternative to
--directory= when --ephemeral is used, following the logic that for ephemeral
options the source directory is actually a template.
This does not deprecate usage of --directory= with --ephemeral, as I am not
convinced the old logic wouldn't make sense.
Fixes: #3667
This resolves any paths specified on --directory=, --template=, and --image=
before using them. This makes sure nspawn can be used correctly on symlinked
images and directory trees.
Fixes: #2001
Let's use chase_symlinks() everywhere, and stop using GNU
canonicalize_file_name() everywhere. For most cases this should not change
behaviour, however increase exposure of our function to get better tested. Most
importantly in a few cases (most notably nspawn) it can take the correct root
directory into account when chasing symlinks.
We generally try to make our destructors robust regarding NULL pointers, much
in the same way as glibc's free(). Do this also for unit_free().
Follow-up for #4748.
pyparsing uses the system locale by default, which in the case of 'C' (in lots
of build environment) will fail with a UnicodeDecodeError. Explicitly open it
with UTF-8 encoding to guard against this.
pyparsing 2.1.10 fixed the handling of LineStart to really just apply to line
starts and not ignore whitespace and comments any more. Adjust EMPTYLINE to
this.
Many thanks to Paul McGuire for pointing this out!
Sometimes setting the transient hostname does not happen synchronously, so
retry up to five times. It is not yet clear whether this is legitimate
behaviour or an underlying bug, but this will at least show whether the wrong
transient hostname is just a race condition or permanently wrong.
Fixes#4753
So far systemd-nspawn container has been creating files under
/run/systemd/inaccessible, no matter whether it's running in user
namespace or not. That's fine for regular files, dirs, socks, fifos.
However, it's not for block and character devices, because kernel
doesn't allow them to be created under user namespace. It results
in warnings at booting like that:
====
Couldn't stat device /run/systemd/inaccessible/chr
Couldn't stat device /run/systemd/inaccessible/blk
====
Thus we need to have the cgroups whitelisting handler to silently ignore
a file, when the device path is prefixed with "-". That's exactly the
same convention used in directives like ReadOnlyPaths=. Also insert the
prefix "-" to inaccessible entries.
IMA validates file signatures based on the security.ima xattr. As of
Linux-4.7, instead of copying the IMA policy into the securityfs policy,
the IMA policy pathname can be written, allowing the IMA policy file
signature to be validated.
This patch modifies the existing code to first attempt to write the
pathname, but on failure falls back to copying the IMA policy contents.
We stay in the SERVICE_START while no READY=1 notification message has
been received. When we are in the SERVICE_START_POST state, we have
already received a ready notification. Hence we should not fail when the
cgroup becomes empty in that state.
Note: the name is "system-update-cleanup.service" rather than
"system-update-done.service", because it should not run normally, and also
because there's already "systemd-update-done.service", and having them named
so similarly would be confusing.
In https://bugzilla.redhat.com/show_bug.cgi?id=1395686 the system repeatedly
entered system-update.target on boot. Because of a packaging issue, the tool
that created the /system-update symlink could be installed without the service
unit that was supposed to perform the upgrade (and remove the symlink). In
fact, if there are no units in system-update.target, and /system-update symlink
is created, systemd always "hangs" in system-update.target. This is confusing
for users, because there's no feedback what is happening, and fixing this
requires starting an emergency shell somehow, and also knowing that the symlink
must be removed. We should be more resilient in this case, and remove the
symlink automatically ourselves, if there are no upgrade service to handle it.
This adds a service which is started after system-update.target is reached and
the symlink still exists. It nukes the symlink and reboots the machine. It
should subsequently boot into the default default.target.
This is a more general fix for
https://bugzilla.redhat.com/show_bug.cgi?id=1395686 (the packaging issue was
already fixed).
- use "service" instead of "script", because various offline updaters that we have
aren't really scripts, e.g. dnf-plugin-system-upgrade, packagekit-offline-update,
fwupd-offline-update.
- strongly recommend After=sysinit.target, Wants=sysinit.target
- clarify a bit what should happen when multiple update services are started
- replace links to the wiki with refs to the man page that replaced it.
This will allow us to have several managers sharing an event loop
and running in parallel, as if they were running in separate processes.
The long term-aim is to allow networkd to be split into separate
processes, so restructure the code to make this simpler.
For now we drop the exit-on-idle logic, as this was anyway severely
restricted at the moment. Once split, we will revisit this as it may
then make more sense again.
This test fails sometimes but it is hard to reproduce, so we need more
information what happens. Set journal log level to "debug" for the entirety of
networkd-test.py, and show networkd's and hostnamed's journals and the DHCP
server log on failure of the two test_transient_hostname* tests. Also sync the
journal before querying it to get more precise output.
This should help with tracking down issue #4753.
Since a581e45ae8, there's a few function calls to
unit_new_for_name which will unit_free on failure. Prior to this commit,
a failure would result in calling unit_free with a NULL unit, and hit an
assertion failure, seen at least via device_setup_unit:
Assertion 'u' failed at src/core/unit.c:519, function unit_free(). Aborting.
Fixes#4747https://bugs.archlinux.org/task/51950
strtoul() parses leading whitespace and an optional sign;
check that the first character is a digit to prevent odd
specifications like "00: 00: 00" and "-00:+00/-1".
This is a different way to implement the fix proposed by commit
a4021390fe suggested by Lennart Poettering.
In this patch we instruct PID1 to not kill "systemctl switch-root" command
started by initrd-switch-root service using the "argv[0][0]='@'" trick.
See: https://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons/ for
more details.
We had to backup argv[0] because argv is modified by dispatch_verb().
