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Fixes#6308: people want to be able to link a unit file via 'systemctl enable'
from a git checkout or such and refer to other files in the same repo.
The new specifiers make that easy.
%y/%Y is used because other more obvious choices like %d/%D or %p/%P are
not available because at least on of the two letters is already used.
The new specifiers are only available in units. Technically it would be
trivial to add then in [Install] too, but I don't see how they could be
useful, so I didn't do that.
I added both %y and %Y because both were requested in the issue, and because I
think both could be useful, depending on the case. %Y to refer to other files
in the same repo, and %y in the case where a single repo has multiple unit files,
and e.g. each unit has some corresponding asset named after the unit file.
By default checks PSI on /proc/pressure, and causes a unit to be skipped
if the threshold is above the given configuration for the avg300
measurement.
Also allow to pass a custom timespan, and a particular slice unit to
check under.
Fixes#20139
To prevent situations like in #17602 from happening, let's drop
direct recursive template dependencies. These will almost certainly
lead to infinite recursion so let's drop them immediately to avoid
instantiating potentially thousands of irrelevant units.
Example of a template that would lead to infinite recursion which
is caught by this check:
notify@.service:
```
[Unit]
Wants=notify@%n.service
```
The code to print unit status formats had a long history, and became a
hard-to-manage mess of duplicate code parts. We would use sprintf() to
format a string, and then call sprintf() again… The code is reworked
to avoid repeated formattings and to streamline printing to the log
and the console.
The approach used in this patch is a bit more complex then in patches by Colin
Walter and Paweł Marciniak, because an allocation is only done if "combined"
format is used. In other cases we return the existing ->id or ->description
strings. The caller can also control whether a shorter or longer status string
should be used. This way the caller can use a shorter format where it makes
sense, for example in the cylon eye output, where we don't have enough
horizontal space.
Patch is based on Colin Walters' https://github.com/systemd/systemd/pull/15957,
and Paweł Marciniak's patch posted on fedora-devel.
Note: for some reason, the functions for printing of start and stop messages
were sepearated by some unrelated functions. They are moved to be consecutive,
but this makes the much more verbose than it would be otherwise. I found it
useful to view in gitk's "new" mode.
Co-authored-by: Colin Walters <walters@verbum.org>
Co-authored-by: Paweł Marciniak <sunwire+git@gmail.com>
Output from a Fedora Rawhide container boot (w/ some follow-up patches to
tweak Descriptions):
Welcome to Fedora 35 (Rawhide Prerelease)!
Queued start job for default target graphical.target.
[ OK ] Created slice system-getty.slice - Slice /system/getty.
[ OK ] Created slice system-modprobe.slice - Slice /system/modprobe.
[ OK ] Created slice system-sshd\x2dkeygen.slice - Slice /system/sshd-keygen.
[ OK ] Created slice user.slice - User and Session Slice.
[ OK ] Started systemd-ask-password-console.path - Dispatch Password Requests to Console Directory Watch.
[ OK ] Started systemd-ask-password-wall.path - Forward Password Requests to Wall Directory Watch.
[ OK ] Reached target cryptsetup.target - Local Encrypted Volumes.
[ OK ] Reached target paths.target - Path Units.
[ OK ] Reached target remote-cryptsetup.target - Remote Encrypted Volumes.
[ OK ] Reached target remote-fs.target - Remote File Systems.
[ OK ] Reached target slices.target - Slice Units.
[ OK ] Reached target swap.target - Swaps.
[ OK ] Reached target veritysetup.target - Local Verity Integrity Protected Volumes.
[ OK ] Listening on systemd-coredump.socket - Process Core Dump Socket.
[ OK ] Listening on systemd-initctl.socket - initctl Compatibility Named Pipe.
[ OK ] Listening on systemd-journald-dev-log.socket - Journal Socket (/dev/log).
[ OK ] Listening on systemd-journald.socket - Journal Socket.
[ OK ] Listening on systemd-networkd.socket - Network Service Netlink Socket.
[ OK ] Listening on systemd-userdbd.socket - User Database Manager Socket.
Mounting dev-hugepages.mount - Huge Pages File System...
Starting systemd-journald.service - Journal Service...
Starting systemd-remount-fs.service - Remount Root and Kernel File Systems...
Starting systemd-sysctl.service - Apply Kernel Variables...
[ OK ] Mounted dev-hugepages.mount - Huge Pages File System.
[ OK ] Finished systemd-remount-fs.service - Remount Root and Kernel File Systems.
Starting systemd-hwdb-update.service - Rebuild Hardware Database...
Starting systemd-sysusers.service - Create System Users...
[ OK ] Finished systemd-sysctl.service - Apply Kernel Variables.
[ OK ] Started systemd-journald.service - Journal Service.
Starting systemd-journal-flush.service - Flush Journal to Persistent Storage...
[ OK ] Finished systemd-sysusers.service - Create System Users.
Starting systemd-tmpfiles-setup-dev.service - Create Static Device Nodes in /dev...
[ OK ] Finished systemd-tmpfiles-setup-dev.service - Create Static Device Nodes in /dev.
[ OK ] Reached target local-fs-pre.target - Preparation for Local File Systems.
[ OK ] Reached target local-fs.target - Local File Systems.
[ OK ] Reached target machines.target - Containers.
Starting dracut-shutdown.service - Restore /run/initramfs on shutdown...
Starting ldconfig.service - Rebuild Dynamic Linker Cache...
[ OK ] Finished dracut-shutdown.service - Restore /run/initramfs on shutdown.
[ OK ] Finished ldconfig.service - Rebuild Dynamic Linker Cache.
[ OK ] Finished systemd-journal-flush.service - Flush Journal to Persistent Storage.
Starting systemd-tmpfiles-setup.service - Create Volatile Files and Directories...
[ OK ] Finished systemd-tmpfiles-setup.service - Create Volatile Files and Directories.
Starting systemd-journal-catalog-update.service - Rebuild Journal Catalog...
Starting systemd-oomd.service - Userspace Out-Of-Memory (OOM) Killer...
Starting systemd-update-utmp.service - Update UTMP about System Boot/Shutdown...
Starting systemd-userdbd.service - User Database Manager...
[ OK ] Finished systemd-update-utmp.service - Update UTMP about System Boot/Shutdown.
[ OK ] Finished systemd-journal-catalog-update.service - Rebuild Journal Catalog.
[ OK ] Started systemd-userdbd.service - User Database Manager.
[ OK ] Started systemd-oomd.service - Userspace Out-Of-Memory (OOM) Killer.
[ OK ] Finished systemd-hwdb-update.service - Rebuild Hardware Database.
Starting systemd-networkd.service - Network Configuration...
Starting systemd-update-done.service - Update is Completed...
[ OK ] Finished systemd-update-done.service - Update is Completed.
[ OK ] Reached target sysinit.target - System Initialization.
[ OK ] Started dnf-makecache.timer - dnf makecache --timer.
[ OK ] Started logrotate.timer - Daily rotation of log files.
[ OK ] Started systemd-tmpfiles-clean.timer - Daily Cleanup of Temporary Directories.
[ OK ] Reached target timers.target - Timer Units.
[ OK ] Listening on dbus.socket - D-Bus System Message Bus Socket.
[ OK ] Reached target sockets.target - Socket Units.
[ OK ] Reached target basic.target - Basic System.
[ OK ] Reached target sshd-keygen.target.
Starting sysstat.service - Resets System Activity Logs...
Starting systemd-homed.service - Home Area Manager...
Starting systemd-logind.service - User Login Management...
Starting dbus-broker.service - D-Bus System Message Bus...
[FAILED] Failed to start sysstat.service - Resets System Activity Logs.
See 'systemctl status sysstat.service' for details.
[ OK ] Started dbus-broker.service - D-Bus System Message Bus.
[ OK ] Started systemd-homed.service - Home Area Manager.
[ OK ] Finished systemd-homed-activate.service - Home Area Activation.
[ OK ] Started systemd-logind.service - User Login Management.
[ OK ] Started systemd-networkd.service - Network Configuration.
Starting systemd-networkd-wait-online.service - Wait for Network to be Configured...
Starting systemd-resolved.service - Network Name Resolution...
[ OK ] Started systemd-resolved.service - Network Name Resolution.
[ OK ] Reached target network.target - Network.
[ OK ] Reached target nss-lookup.target - Host and Network Name Lookups.
Starting sshd.service - OpenSSH server daemon...
Starting systemd-user-sessions.service - Permit User Sessions...
[ OK ] Finished systemd-user-sessions.service - Permit User Sessions.
[ OK ] Started console-getty.service - Console Getty.
[ OK ] Reached target getty.target - Login Prompts.
[ OK ] Started sshd.service - OpenSSH server daemon.
[ OK ] Reached target multi-user.target - Multi-User System.
[ OK ] Reached target graphical.target - Graphical Interface.
Starting systemd-update-utmp-runlevel.service - Update UTMP about System Runlevel Changes...
[ OK ] Finished systemd-update-utmp-runlevel.service - Update UTMP about System Runlevel Changes.
Fedora 35 (Rawhide Prerelease)
Kernel 5.12.12-300.fc34.x86_64 on an x86_64 (console)
rawhide login: [ OK ] Stopped session-24.scope - Session 24 of User zbyszek.
[ OK ] Removed slice system-getty.slice - Slice /system/getty.
[ OK ] Removed slice system-modprobe.slice - Slice /system/modprobe.
[ OK ] Removed slice system-sshd\x2dkeygen.slice - Slice /system/sshd-keygen.
[ OK ] Stopped target graphical.target - Graphical Interface.
[ OK ] Stopped target multi-user.target - Multi-User System.
[ OK ] Stopped target getty.target - Login Prompts.
[ OK ] Stopped target machines.target - Containers.
[ OK ] Stopped target nss-lookup.target - Host and Network Name Lookups.
[ OK ] Stopped target remote-cryptsetup.target - Remote Encrypted Volumes.
[ OK ] Stopped target timers.target - Timer Units.
[ OK ] Stopped dnf-makecache.timer - dnf makecache --timer.
[ OK ] Stopped logrotate.timer - Daily rotation of log files.
[ OK ] Stopped systemd-tmpfiles-clean.timer - Daily Cleanup of Temporary Directories.
[ OK ] Closed systemd-coredump.socket - Process Core Dump Socket.
Stopping console-getty.service - Console Getty...
Stopping dracut-shutdown.service - Restore /run/initramfs on shutdown...
Stopping sshd.service - OpenSSH server daemon...
Stopping systemd-logind.service - User Login Management...
Stopping systemd-oomd.service - Userspace Out-Of-Memory (OOM) Killer...
Stopping user@1000.service - User Manager for UID 1000...
[ OK ] Stopped systemd-oomd.service - Userspace Out-Of-Memory (OOM) Killer.
[ OK ] Stopped systemd-networkd-wait-online.service - Wait for Network to be Configured.
[ OK ] Stopped sshd.service - OpenSSH server daemon.
[ OK ] Stopped console-getty.service - Console Getty.
[ OK ] Stopped dracut-shutdown.service - Restore /run/initramfs on shutdown.
[ OK ] Stopped target sshd-keygen.target.
[ OK ] Stopped systemd-logind.service - User Login Management.
[ OK ] Stopped user@1000.service - User Manager for UID 1000.
Stopping user-runtime-dir@1000.service - User Runtime Directory /run/user/1000...
[ OK ] Unmounted run-user-1000.mount - /run/user/1000.
[ OK ] Stopped user-runtime-dir@1000.service - User Runtime Directory /run/user/1000.
[ OK ] Removed slice user-1000.slice - User Slice of UID 1000.
Stopping systemd-user-sessions.service - Permit User Sessions...
[ OK ] Stopped systemd-user-sessions.service - Permit User Sessions.
[ OK ] Stopped target network.target - Network.
[ OK ] Stopped target remote-fs.target - Remote File Systems.
Stopping systemd-homed-activate.service - Home Area Activation...
Stopping systemd-resolved.service - Network Name Resolution...
[ OK ] Stopped systemd-resolved.service - Network Name Resolution.
Stopping systemd-networkd.service - Network Configuration...
[ OK ] Stopped systemd-homed-activate.service - Home Area Activation.
Stopping systemd-homed.service - Home Area Manager...
[ OK ] Stopped systemd-homed.service - Home Area Manager.
[ OK ] Stopped target basic.target - Basic System.
[ OK ] Stopped target paths.target - Path Units.
[ OK ] Stopped target slices.target - Slice Units.
[ OK ] Removed slice user.slice - User and Session Slice.
[ OK ] Stopped target sockets.target - Socket Units.
Stopping dbus-broker.service - D-Bus System Message Bus...
[ OK ] Stopped dbus-broker.service - D-Bus System Message Bus.
[ OK ] Closed dbus.socket - D-Bus System Message Bus Socket.
[ OK ] Stopped target sysinit.target - System Initialization.
[ OK ] Stopped target cryptsetup.target - Local Encrypted Volumes.
[ OK ] Stopped systemd-ask-password-console.path - Dispatch Password Requests to Console Directory Watch.
[ OK ] Stopped systemd-ask-password-wall.path - Forward Password Requests to Wall Directory Watch.
[ OK ] Stopped target veritysetup.target - Local Verity Integrity Protected Volumes.
[ OK ] Stopped systemd-update-done.service - Update is Completed.
[ OK ] Stopped ldconfig.service - Rebuild Dynamic Linker Cache.
[ OK ] Stopped systemd-hwdb-update.service - Rebuild Hardware Database.
[ OK ] Stopped systemd-journal-catalog-update.service - Rebuild Journal Catalog.
Stopping systemd-update-utmp.service - Update UTMP about System Boot/Shutdown...
[ OK ] Stopped systemd-networkd.service - Network Configuration.
[ OK ] Closed systemd-networkd.socket - Network Service Netlink Socket.
[ OK ] Stopped systemd-sysctl.service - Apply Kernel Variables.
[ OK ] Stopped systemd-update-utmp.service - Update UTMP about System Boot/Shutdown.
[ OK ] Stopped systemd-tmpfiles-setup.service - Create Volatile Files and Directories.
[ OK ] Stopped target local-fs.target - Local File Systems.
Unmounting home.mount - /home...
Unmounting run-credentials-systemd\x2dsysusers.se…e.mount - /run/credentials/systemd-sysusers.service...
Unmounting tmp.mount - Temporary Directory /tmp...
[ OK ] Unmounted home.mount - /home.
[ OK ] Unmounted tmp.mount - Temporary Directory /tmp.
[ OK ] Unmounted run-credentials-systemd\x2dsysusers.service.mount - /run/credentials/systemd-sysusers.service.
[ OK ] Stopped target local-fs-pre.target - Preparation for Local File Systems.
[ OK ] Stopped target swap.target - Swaps.
[ OK ] Reached target umount.target - Unmount All Filesystems.
[ OK ] Stopped systemd-tmpfiles-setup-dev.service - Create Static Device Nodes in /dev.
[ OK ] Stopped systemd-sysusers.service - Create System Users.
[ OK ] Stopped systemd-remount-fs.service - Remount Root and Kernel File Systems.
[ OK ] Reached target shutdown.target - System Shutdown.
[ OK ] Reached target final.target - Late Boot Services.
[ OK ] Finished systemd-poweroff.service - System Power Off.
[ OK ] Reached target poweroff.target - System Power Off.
Sending SIGTERM to remaining processes...
Sending SIGKILL to remaining processes...
All filesystems, swaps, loop devices, MD devices and DM devices detached.
Powering off.
When using top level drop-ins it isn't immediately obvious that one can
make use of symlinking to disable a top-level drop in for a specific
unit.
Signed-off-by: Peter Morrow <pemorrow@linux.microsoft.com>
We were effectively doing all post-upgrade scripts twice in Fedora. We got this
wrong, so it's likely other people will get it wrong too. So let's explain
what is actually needed to make this work, but also when it's not useful.
The code works differently than the docs, and the code is right here.
Fix the doc hence.
See VALID_CHARS in unit-name.c for details about allowed chars in unit
names, but keep in mind that "-" and "\" are special, since generated by
the escaping logic: they are OK to show up in unit names, but need to be
escaped when converting foreign strings to unit names to make sure
things remain reversible.
Fixes: #19623
This is like a really strong version of Wants=, that keeps starting the
specified unit if it is ever found inactive.
This is an alternative to Restart= inside a unit, acknowledging the fact
that whether to keep restarting the unit is sometimes not a property of
the unit itself but the state of the system.
This implements a part of what #4263 requests. i.e. there's no
distinction between "always" and "opportunistic". We just dumbly
implement "always" and become active whenever we see no job queued for
an inactive unit that is supposed to be upheld.
This is similar to OnFailure= but is activated whenever a unit returns
into inactive state successfully.
I was always afraid of adding this, since it effectively allows building
loops and makes our engine Turing complete, but it pretty much already
was it was just hidden.
Given that we have per-unit ratelimits as well as an event loop global
ratelimit I feel safe to add this finally, given it actually is useful.
Fixes: #13386
This takes inspiration from PropagatesReloadTo=, but propagates
stop jobs instead of restart jobs.
This is defined based on exactly two atoms: UNIT_ATOM_PROPAGATE_STOP +
UNIT_ATOM_RETROACTIVE_STOP_ON_STOP. The former ensures that when the
unit the dependency is originating from is stopped based on user
request, we'll propagate the stop job to the target unit, too. In
addition, when the originating unit suddenly stops from external causes
the stopping is propagated too. Note that this does *not* include the
UNIT_ATOM_CANNOT_BE_ACTIVE_WITHOUT atom (which is used by BoundBy=),
i.e. this dependency is purely about propagating "edges" and not
"levels", i.e. it's about propagating specific events, instead of
continious states.
This is supposed to be useful for dependencies between .mount units and
their backing .device units. So far we either placed a BindsTo= or
Requires= dependency between them. The former gave a very clear binding
of the to units together, however was problematic if users establish
mounnts manually with different block device sources than our
configuration defines, as we there might come to the conclusion that the
backing device was absent and thus we need to umount again what the user
mounted. By combining Requires= with the new StopPropagatedFrom= (i.e.
the inverse PropagateStopTo=) we can get behaviour that matches BindsTo=
in every single atom but one: UNIT_ATOM_CANNOT_BE_ACTIVE_WITHOUT is
absent, and hence the level-triggered logic doesn't apply.
Replaces: #11340
This allows to limit units to machines that run on a certain firmware
type. For device tree defined machines checking against the machine's
compatible is also possible.
This specifes two new optional fields for /etc/os-release:
IMAGE_VERSION= and IMAGE_ID= that are supposed to identify the image of
the current booted system by name and version.
This is inspired by the versioning stuff in
https://github.com/systemd/mkosi/pull/683.
In environments where pre-built images are installed and updated as a
whole the existing os-release version/distro identifier are not
sufficient to describe the system's version, as they describe only the
distro an image is built from, but not the image itself, even if that
image is deployed many times on many systems, and even if that image
contains more resources than just the RPMs/DEBs.
In particular, "mkosi" is a tool for building disk images based on
distro RPMs with additional resources dropped in. The combination of all
of these together with their versions should also carry an identifier
and version, and that's what IMAGE_VERSION= and IMAGE_ID= is supposed to
be.
systemd.unit(5) is a wall of text. And this particular feature can be very useful
in the context of resource control. Let's avertise this cool feature a bit more.
Fixes#17900.
Before, we only allowed conditionalizing on controllers, not the hierarchy.
This commit extends this to allow a simple check for v1 (i.e. classic or hybrid),
and v2 (full unified).
An alternative approach would be to add a separate Condition for this, but I'm
not too keen on that, considering that v1 is already being deprecrecated
(c.f. 82f3063218).
e3820eeaf1 did that replacement XDG_CONFIG_HOME, in one
of two places. Let's use ~/.config everywhere.
Quoting https://github.com/systemd/systemd/pull/18704#discussion_r579465254:
> I'd really drop XDG_CONFIG_HOME from the docs. It's confusing enough as it
> is. Where we don't need the indirections we should not confuse people with
> it, in particular as people might then think it's actually a good idea to use
> that env var and redirect things. I'd just show the literal path everywhere,
> even if we internally use the env var.
Commit 83f72cd65f ("man,docs: document the new unit file directory for
attached images") updated the docs and man page with the new unit file
directory for attached images but included a system.attached ->
systemd.attached typo in the man page portion of the change. Fix the
typo to document the correct path.
Taking a stab at implementing #14479.
Add {Condition,Assert}CPUFeature to `systemd-analyze` & friends. Implement it
by executing the CPUID instruction. Add tables for common x86/i386
features.
Tested via unit tests + checked that commands such as:
```bash
systemd-analyze condition 'AssertCPUFeature = rdrand'
```
Succeed as expected and that commands such as
```bash
systemd-analyze condition 'AssertCPUFeature = foobar'
```
Fail as expected. Finally, I have amended the `systemd.unit` manual page
with the new condition and the list of all currently supported flags.
A minor tweak, that hopefully makes things a bit clearer, given that we
previously used "requirement dependency" when referring to Wants=, which
might be confusing given that we have Requires=
Currently systemd-detect-virt fails to detect running under PowerVM.
Add code to detect PowerVM based on code in util-linux.
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
