supervision - discussion about system services, daemon supervision, init, runlevel management, and tools such as s6 and runit
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From: Gerrit Pape <pape@smarden.org>
Subject: Re: Migrating from daemontools
Date: Fri, 12 May 2006 15:23:40 +0000	[thread overview]
Message-ID: <20060512152340.13033.qmail@d3387fbf9fcfb4.315fe32.mid.smarden.org> (raw)
In-Reply-To: <44627A0A.6030404@robinbowes.com>

On Thu, May 11, 2006 at 12:40:58AM +0100, Robin Bowes wrote:
> I'm about to migrate to runit from daemontools (for licensing reasons).
> 
> Can I just confirm that it is as simple as :
> 
> 1. Install runit
> 2. Create /var/service
> 3. Add to start up (inittab on linux or /etc/rc.local on FreeBSD)
> 4. Re-read inittab (Linux) or reboot (FreeBSD)

Yes, I would replace the invocation of svscanboot with runsvdir-start
though, and have only runsvdir run.  Then move the services from
/service/ into /var/service/.

> Am I right in thinking that my current scripts should run OK using runsv
> instead of supervise?

Yes, no changes are required as long as you have the daemontools
programs still around.

> Are there runit equivalents of all daemontools binaries, specifically
> tai64nlocal (I am assuming that sv == svc, svlogd == multilog) ?

Not all, fghack is missing.  And tai64n/local doesn't have an equivalent
in runit as svlogd can be told to write human-readable, sortable
timestamps to the logs with the -tt switch.  So this post-processing
isn't necessary.

 svscan, svscanboot, readproctitle -> runsvdir
 svc, svstat, svok -> sv
 supervise -> runsv
 envdir, enduidgid, pgrphack, setlock, setuidgid, softlimit -> chpst
 multilog -> svlogd

Regards, Gerrit.


      parent reply	other threads:[~2006-05-12 15:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-10 23:40 Robin Bowes
2006-05-11  9:29 ` Robin Bowes
2006-05-12 15:23 ` Gerrit Pape [this message]

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