Re: Installing dnscache with runit, without other djb utils

[Roy Lanek <lanek@novenine.com>]

** Sorry for answering late

> I'd like to install djb's dnscache to run under my
> existing runit-based system.

** you can (it's working perfectly for me).

> In order to do so, it seems to require me to install
> a number of other djb utilities which have the same
> name as some of the runit-based symlinks: setuidgid,
> pgrphack, etc.

** no. My case:

/etc/dnscache
    with the usual inner structure (log, supervise, run) +

        /etc/dnscache/env
        /etc/dnscache/root
        /etc/dnscache/seed

    extra

env, root, seed like with the original dnscache
log and supervise like usual

drwxr-sr-x 2 root root   8 Jun 19 02:34 env
drwxr-x--- 3 root xxx    5 Jun 19 02:27 log
drwxr-sr-x 4 root root   4 Jun 19 02:21 root
-rwx------ 1 root root 395 Jun 19 14:51 run
-rw------- 1 root root 128 Sep 28 02:39 seed
drwx------ 2 root root   8 Sep 28 02:39 supervise

xxx is your groupid of choice from the runit family

run is:

#!/bin/sh
exec 2>&1
cd '/etc/dnscache' || exit 1

# -- seed:
umask 077
/bin/rm -f seed
/bin/dd if=/dev/urandom bs=128 count=1 > seed 2> /dev/null
    # -- "Linux has a good source of random data, use 128
    # -- bytes of it to pass it to 'dns_random_init' (via
    # -- 'seed')."^1

exec chpst -U yyy -e ./env -o 250 -d "$DATALIMIT" \
        /usr/bin/dnscache


# -- 1. The dnscache-conf program, djbdns' doc.



with yyy = your userid for dnscache (from the passwd)


run in supervise is:

#!/bin/sh
exec chpst -uxxx svlogd -tt main/dnscache

with xxx the same as above
and main as known. 


symbolic link to /etc/dnscache as usual


Hope I have given you enough info.

The only exception I know in which I had to really compile
daemontools--just to extract tai64n and tai64nlocal--is
uschedule, which I also use with great satisfaction under
runit. (You need also to set a bit up an environment, a
trivial task).

Cheers,

/Roy

P.S.

After a second thought, maybe it interests others too (I
have answered to the sender directly already).
-- 
########################     anjing menggonggong, kafilah tetap berlalu  
##### . slackware ######     the dogs are barking, the caravan moves on  
##### +-----linux ######  [illustrates useless protest, critic, or sarcasm] 
########################