Re: server iteration

[Tod Oace]

On May 24, 2005, at 21:01, Tim Nelson wrote:

> > An interesting idea, but I would still have to double my quantity  
> > of copy statements, yes? One set for the primary server and a  
> > second for the alternate. Or am I misunderstanding?
>
>     That's why we need Templating in the next version of cfengine:
> http://cfwiki.org/cfwiki/index.php/Templating_Ideas
>
>     Warning; the above documents a number of different templating  
> ideas.

Soooo... This seems like it could be a useful short-cut for defining  
copy attributes, but I'm not seeing how it would handle failover. The  
way copy works today I have to define a second copy action for each  
copy triggered by a failover= class. Would copy templates do all  
that? And define AddInstallable if that's still needed?

It still seems useful even if it doesn't address my failover problem,  
although I think I would be equally happy with a DefaultServer global  
variable. I specify "server=${server}" for all but a couple of my  
copy statements. And I really don't mind making owner=, group= and  
mode= very explicit with each file/directory.

Oh, I think template= is more Cfengine-like than use_template=.
Like filter=.

> Naturally, I like the Action Templating one, as that's my idea :).

This seems...tricky. But potentially very powerful.
So I'll add one other idea to the pile.

What if you could embed Cfengine class rules and variables in the  
source file being copied? This seems very Cfengine-like. Describe  
what you want and Cfengine takes care of the rest. (It would still  
need to address the checksum problem.)

I still want server=server1:server2 and SingleServer by the way.  :)

> --
> Tim Nelson
> Server Administrator
> WebAlive Technologies Global
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--
Tod Oace, Intel Corporation <tod@intel.com>