owneridmap bind option will map the target directory owner from inside the
container to the owner of the directory bound from the host filesystem.
This will ensure files and directories created in the container will be owned
by the directory owner of the host filesystem. All other users will remain
unmapped. Files to be written as other users in the container will not be
allowed.
Resolves: #27037
Let's make sure that versions generated by meson-vcs-tag.sh always
sort higher than official and stable releases. We achieve this by
immediately updating the meson version in meson.build after a new
release. To make sure this version always sorts lower than future
rcs, we suffix it with "~devel" which will sort lower than "~rcX".
The new release workflow is to update the version in meson.build
for each rc and the official release and to also update the version
number after a new release to the next development version.
The full version is exposed as PROJECT_VERSION_FULL and used where
it makes sense over PROJECT_VERSION.
We also switch to reading the version from a meson.version file in
the repo instead of hardcoding it in meson.build. This makes it
easier to access both inside and outside of the project.
The meson-vcs-tag.sh script is rewritten to query the version from
meson.version instead of passing it in via the command line. This
makes it easier to use outside of systemd since users don't have to
query the version themselves first.
Let's update the window title with an ANSI sequence if we can. We'll
insert a blue dot, to match the blue tinting of the terminal screen,
indicating that we are in a container.
Common sense says that to "try" something means "to not fail if
something turns out not to be possible", thus do not make this
combination a hard error.
The actual implementation ignores any --link-journal= setting when
--ephemeral is in effect, so the semantics are upheld.
When I added the --background= switch I placed the empty line that was
supposed to separate the options from the next section before the switch
rather than after. Fix that.
To make issues like this harder to run into next time, let's move the \n
from the end of the preceeding line to the beginning of the section
title, since that's pretty much where they belong to.
Follow-up for: 3d8ba7b83f
These are wrappers around getpwuid_r() and friends, and will allocate the
right-sized buffer for this call.
We so far had multiple implementations of a buffer allocation loop
around getpwuid_r() and friends, and they all suck in some way. Let's
clean this up and add a common implementation, and use it everywhere.
Also, be more careful with error numbers, in particular systematically
turn ENOENT into ENOSRCH (the former is what is returned if /etc/passwd
is absent, which we want to consider identical to user not existing,
which is ENOSRCH). We so far did this at some invocations, but not all.
There are some invocations of getpwuid() left in the codebase. We really
should fix those too, and have a single unified implementation of the
logic, but those are not as trivial to convert, so left for another
time.
Let's grey the text out, and prefix it with a vertical grey bar, to make
clear this is output from the host, not the payload, and make it clearly
distinguishable from what follows.
Let's also make the image name clickable (with new enough
shared-mime-info this should allow you to look into the image with
gnome-disk-utility or a similar tool.
If the requested new name for a network interface is already assigned as a
alternative name, then it is not necessary to and cannot rename the
interface.
This also changes to use sd_device to get some attributes.
So, on moving interfaces back to the parent, we need to populate sysfs
associated to the client netns.
That may look redundant and complicated, but it makes later change
easier, and hopefully faster.
On Linux only the "w" access bit is necessary to connect to an AF_UNIX
socket, hence let's only set that and nothing else, to limit exposure.
Just paranoia.
This is gets the resource limits off a specified process, and is very
similar to prlimit() with a NULL new_rlimit argument. In fact, it tries
that first. However, it then falls back to use /proc/$PID/limits. Why?
Simply because Linux prohibits access to prlimit() for processes with a
different UID, but /proc/$PID/limits still works.
This is preparation to allow nspawn to run unprivileged.
THis brings the list of attributes to delegate to managers of subcgroups
to the state of kernel 6.6.
We probably should unify this list, and maybe generate it automatically
from /sys/kernel/cgroup/delegate, but let's do that another time.
Currently the check doesn't take any settings from nspawn settings
files into account, so let's delay the check until after we've
loaded any settings file.
Daan De Meyer
Benjamin Franzke
Luca Boccassi
Sam Leonard
Lennart Poettering
Yu Watanabe
Mike Yuan
Ivan Shapovalov
Frantisek Sumsal
Matteo Croce
Zbigniew Jędrzejewski-Szmek