On Jan 3, 2013, at 9:44 AM, Phil Mayers <p.may...@imperial.ac.uk> wrote:
> On 03/01/13 14:36, Warren Kumari wrote:
>
>> Yup, have a look at Puppet.
>>
>> For the first while it will seem like way way more work than it is
>> worth (and the whole declarative language bit makes my head hurt) but
>> after investing a few hours getting things setup you'll wonder how
>> you ever managed without it… Deploying a new server (or configs, etc
>> to a bunch of servers) suddenly becomes trivial...
>
> A bit OT, but we use cfengine (because puppet didn't exist when we started
> doing it), but I strongly endorse the general sentiment behind this
> statement; if you run any number of servers at all, a config management tool
> like puppet/cfengine will transform your working life.
>
>> Setup Puppet to distribute the file, and then have an exec action
>> that does: rndc addzone example.com '{type master; file
>> "master/example.com"; };'
>
> Does puppet provide built-in facilities to synchronise events across multiple
> servers, because that was a concern to the OP.
Oh, yeah, in my Puppet zealotry I forgot about that bit :-)
AFAIK Puppet doesn't natively support this, but on the few occasions I have
needed to do something like this from Puppet I have done something a little
clunky. It involves taking the time on the puppet master and then using that to
schedule a job in N minutes from that time on all the boxes.
Something along the lines of:
AT_TIME=`date +"%H:%M %m/%d/%y" --date='$MASTER_TIME + 2 minutes'`; echo '
$SOME_COMMAND ' | at $AT_TIME
This *is* very clunky and so in a fit of pique I deleted it…
W
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