On Sat, Oct 18, 2025 at 01:58:35AM +0200, Lorenzo wrote:
On Fri, 17 Oct 2025 23:16:23 +0100
> Andrew Bower <[email protected]> wrote:
[...]
> > > * what if ip (and or ifconfig) are not found in the system? is it
> > > safe to assume that network is not configured and fail in this case?
> >
> > That's a good question. Needs further thought. Might be worth noting
> > we're probably doing more than the initscripts would here - they would
> > just wait until networkmanager/dhclient/networking or whatever
> > services have been started and possibly failed. So maybe we're over
> > thinking this and actually need to wait on default-network instead
> > which can launch those like default-rsyslog does. But I think it
> > would be ugly to have a service launch another service to do this -
> > is there a way of having an alias for whichever network setup service
> > is configured
>
> default-syslog is a first attempt, and I'm not happy about it.
> I don't find attractive to play with symlinks and alternatives either..
>
> Recently I was thinking:
> * define a facility "suffix" in runit; for example '-log' for sysloggers
> (could be '-net' for network)
> * rename all services that belong to the group appending the common
> '-log' suffix to the end of the service name. For example rsyslog-log,
> socklog-unix-log and so on
> * in run files of services that require one service of the '-log' group
> check the service with full path and wildcards, for example
> 'sv check /etc/service/*-log'
> but I still have to test if it works as expected..
Leaving aside my talk about ip address checks for the moment, your
wildcard suggestion got me thinking.
This seems like a better idea than forcing services to be named a
certain way:
Any service that wants to provide an LSB-style 'facility' could have an
empty file in its service directory called 'provides-<facility>'. I
have mocked this up like this (and remember ifupdown is down in stage 1):
=== /usr/lib/runit/facilities ===
facility() {
for i in $(find "$SVDIR" -iregex "[^.]*/provides-$1" -printf "%h ")
do
basename $i
done
}
sv_if() {
[ $# -gt 1 ] || return
sv "$@"
}
=== /usr/share/runit/sv.src/network-manager/provides-network ===
=== /usr/share/runit/sv.src/dhclient/provides-network ===
=== /usr/share/runit/sv.src/gerbera/run ===
#!/usr/bin/env /lib/runit/invoke-run
exec 2>&1
. /usr/lib/runit/facilities
sv_if start $(facility network) || exit 1
exec chpst -u gerbera:gerbera ##bin## -c /etc/gerbera/config.xml
