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Joachim Wiberg
c584795202
Reference sections kept pointing at the line-based format they no longer
document. `sysv` and `task` sent the reader to Services for "<COND>",
the cgroups chapter opened by listing three legacy directives and then
explained further down that only two of them exist here, and the logging
chapter still gave "log:prio:facility.level,tag:ident" as the full
syntax.
Some claims were wrong independent of the format:
- a sysv is a supervised daemon, grouped with service in
SVC_TYPE_DAEMON, not a variation on task
- restart-max has no upper bound of 255, or any other
- the built-in rescue fallback runs in 12345789, not 12345
- conditional loading quotes system/10-hotplug.conf, not
system/hotplug.conf
- the key spells conflicts, not conflict
- the built-in getty no longer wants TERM last, it is a key
`if` takes either a service name or, in angle brackets, a condition,
decided in svc_ifthen(). Only the examples showed this, so it is now
said.
Terminology follows the split index.md already draws: a block is the new
format, a stanza the line-based one.
src/rescue.conf was still line-based, missed because it sits in src/
rather than system/ or contrib/.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
1.1 KiB
1.1 KiB
Service Wrapper Scripts
If your service requires to run additional commands, executed before the
service is actually started, like the systemd ExecStartPre, you can
use a wrapper shell script to start your service.
The Finit service .conf file can be put into /etc/finit.d/available,
so you can control the service using initctl. Then use the path to
the wrapper script in the Finit .conf service block. The following
example employs a wrapper script in /etc/start.d.
Example:
-
/etc/finit.d/available/program.conf:service program { description = "Example Program" runlevel = "235" reload-signal = "none" command = "/etc/start.d/program" } -
/etc/start.d/program:#!/bin/sh # Prepare the command line options OPTIONS="-u $(cat /etc/username)" # Execute the program exec /usr/bin/program $OPTIONS
Note
The example sets
reload-signal = "none"to say the program does not supportSIGHUP. Finit then stop/starts the service instead of signalling it at restart/reload events.