[chef] Re: Re: automatically updating attributes visible to all nodes

On Thu, 09 Feb 2012, Jesse Nelson wrote:

> search seems like the right thing here.

but, the attr for which the clients would search, how would i populate
that attr in the first place? and how would i update that attr
automatically when a mon server's IP changes? that's what i don't get.

oh wait.. i think i just got it. a new mon server updates its own node's
attributes. but those attributes are searchable from all nodes. is
that it?

thanks for your patience :>

kallen

> On Thu, Feb 9, 2012 at 10:57 AM,  
> <
 >
>  wrote:
> >
> > hi. i'm trying to figure out how i can inform my monitored clients of
> > their monitoring server's IP for their config, especially when that
> > IP changes due to relaunching the mon server.
> >
> > the answer might be to use databags. i note today's thread
> > "[chef]  passing attributes to recipes". but lemme talk it out:
> >
> > at the moment, i supply a default attr mon_srv_ips in an environment
> > (i could also do this in role[base]). my clients' grab that IP attr
> > and put it into their config via a template:
> >
> >  monserver=<%= node.mon.mon_srv_ips.join(',') %>
> >
> > one day i'll relaunch the mon server, it'll get a new IP, and i'll have
> > to update the attr by hand (i think) in the environment file or
> > role[base].
> >
> > but what if that new mon server could populate that IP attr with its
> > IP when it comes up? i can write the mon server recipe to write the IP
> > to a databag. then the clients could pull that from the databag, rather
> > than the env or role[base].
> >
> > is using a databag for this the right thing? is there some other (better?)
> > way for this mon server to push an attr into something that is visible
> > by all my clients? can a node push attrs to and environment or role?
> >
> > thankee,
> > kallen
> >