Re: rc script to let a service wait for db available

27.04.2022 21:30, Axel Rau wrote:
> Hi all,
> 
> I have this rc script:
> - - -
> meteoavg_wfphost="dbb3"
> meteoavg_wfpuser="meteo"
> meteoavg_wfpdb="operations"
> #
> #
> 
> . /etc/rc.subr
> 
> name="meteoavg"
> rcvar=${name}_enable
> command=/usr/local/bin/meteoavg
> 
> load_rc_config $name
> 
> : ${meteoavg_enable="NO"}
> : ${meteoavg_flags=" -l syslog:daemon -s Chaos1"}
> 
> : ${meteoavg_pidfile="/var/run/meteoavg-Chaos1.pid"}
> 
> pidfile="${meteoavg_pidfile}"
> 
> ##start_cmd="${name}_start"
> stop_precmd="${name}_prestop"
> 
> meteoavg_start() {
>     /usr/local/bin/wait_for_pgsql.sh ${meteoavg_wfphost} \
>      ${meteoavg_wfpuser} ${meteoavg_wfpdb} \
>     "/usr/local/bin/${name} ${meteoavg_flags} &"
> }

> - - -
> The rc ignores the '&' and waits for wait_for_pgsql.sh to complete.
> 
> How can I let rc continue without waiting?

You need to place '&' outside of double-quotes.
But better use daemon(8) command instead of '&'
because daemon does better job ignoring signals etc.
and that may be important if wait time extends past point when system goes to multiuser mode.