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NAME | SYNOPSIS | DESCRIPTION | EXAMPLE | SEE ALSO | COLOPHON |
SYSTEMD-RUN-GENERATOR(8) systemd-run-generator SYSTEMD-RUN-GENERATOR(8)
systemd-run-generator - Generator for invoking commands specified on
the kernel command line as system service
/usr/lib/systemd/system-generators/systemd-run-generator
systemd-run-generator is a generator that reads the kernel command
line and understands three options:
If the systemd.run= option is specified and followed by a command
line, a unit named kernel-command-line.service is generated for it
and booted into. The service has Type=oneshot set, and has
SuccessAction=exit and FailureAction=exit configured by default, thus
ensuring that the system is shut down as soon as the command
completes. The exit status of the command line is propagated to the
invoking container manager, if this applies (which might propagate
this further, to the calling shell — e.g. systemd-nspawn(7) does
this). If this option is used multiple times the unit file will
contain multiple ExecStart= lines, to execute all commands in order.
The command is started as regular service, i.e. with
DefaultDependencies= on.
Use systemd.run_success_action= and systemd.run_failure_action= to
tweak how to react to the process completing. In particular assigning
"none" will leave the system running after the command completes. For
further details on supported arguments, see systemd.unit(5).
systemd-run-generator implements systemd.generator(7).
Use a command like the following to add a user to the user database
inside a container run with systemd-nspawn(7):
# systemd-nspawn -D mycontainer -b systemd.run='"adduser test"'
(Note the requirement for double quoting in the command line above.
The first level of quoting ('') is processed and removed by the
command shell used to invoke systemd-nspawn. The second level of
quoting ("") is propagated to the kernel command line of the
container and processed and removed by systemd-run-generator. Both
together make sure both words of the specified command line adduser
test end up in the generated unit file together and are neither split
apart by the command shell nor by the generator.)
systemd(1), systemctl(1), kernel-command-line(7), systemd-nspawn(7),
systemd.unit(5), systemd.service(5)
This page is part of the systemd (systemd system and service manager)
project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have a bug
report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩. This
page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2020-08-13. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2020-08-11.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
systemd 246 SYSTEMD-RUN-GENERATOR(8)
Pages that refer to this page: 30-systemd-environment-d-generator(7) , kernel-command-line(7) , systemd.directives(7) , systemd.index(7)