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Re: [Cfengine] copy: templates
From: |
Y99 |
Subject: |
Re: [Cfengine] copy: templates |
Date: |
Wed, 14 May 2003 12:45:55 +0200 (MEST) |
yep, but you have to upgrade. The "singlecopy" function is avaible in
v2.0.5.
> Will Lowe wrote:
> > I'm using cfengine 2.x (right now 2.0.4, but I don't mind upgrading)
> > under Debian woody. Let's say I have several variables set in my
> > cfagent program named $cfgroot, $site, $type, and $host, with the
> > obvious meanings.
> >
> > I'd like to do something like this:
> >
> > copy:
> >
> > $cfgroot/$host/etc/resolv.conf dest=/etc/resolv.conf recurse=inf
> > # if it exists, otherwise try:
> > $cfgroot/$type/etc/resolv.conf dest=/etc/resolv.conf recurse=inf
> > # if it exists, otherwise try:
> > $cfgroot/$site/etc/resolv.conf dest=/etc/resolv.conf recurse=inf
> > # if it exists, otherwise try:
> > $cfgroot/default/etc/resolv.conf dest=/etc/resolv.conf recurse=inf
> >
> > .. in other words, I'd like to be able to maintain (possibly partial)
> > sets of configs for each of $site, $type, $host, and a default set,
> > and have cfengine automatically find the "most specific" action to
> > apply.
> >
> > An additonal catch is that I'd like to do it for *every* *single* copy
> > statement anywhere in the cfagent config (find the most specific
> > resolv.conf, the most specific set of apache configs, the most
> > specific /etc/nsswitch.conf, etc.) -- a generic templating system.
> >
> > Using groups/classes might be possible:
> >
> > sitefoo.farma:
> > copy resolv.conf.1234
> >
> > sitefoo.!farmb.farmc.!sitebar:
> > copy resolv.conf.4321
> >
> > siteBaz.farmF:
> > copy resolv.conf.0987
> >
> > .. but with 15 farms, 1000 servers, and 10 sites, the number of
> > possibly needed rules becomes insane. It'd be a lot simpler if
> > cfengine could find the "best match" somehow on its own ... any ideas?
> >
>
> I think the trick is: (From the reference manual)
> SingleCopy
>
>
> singlecopy = ( on )
>
>
>
> If singlecopy is defined the behavior of copy: is modified so that a
> file will only be copied once, helping to achieve hierarchical or "most
> specific" file copy overrides, provided that the most specific file
> occurs first. With the following file structure on a host running cfservd:
>
> /dist/hosts/loghost1.example.com/etc/syslog.conf
> /dist/solaris/etc/syslog.conf /dist/all/etc/syslog.conf
>
> The configuration:
>
> control:
> singlecopy = ( on )
>
> copy:
>
> /dist/${fqhost} dest=/ inform=true syslog=true r=inf
> server=disthost
> /dist/${ostype} dest=/ inform=true syslog=true r=inf
> server=disthost
> /dist/all dest=/ inform=true syslog=true r=inf
> server=disthost
>
>
>
> Would result in:
>
> /dist/hosts/loghost1.example.com/etc/syslog.conf being copied to
> loghost1.example.com
> /dist/solaris/etc/syslog.conf being copied to Solaris systems
> /dist/all/etc/syslog.conf being copied to all other systems
>
>
> --
> --
> ********************************************************************
> * *
> * Bas van der Vlies e-mail: basv@sara.nl *
> * SARA - Academic Computing Services phone: +31 20 592 8012 *
> * Kruislaan 415 fax: +31 20 6683167 *
> * 1098 SJ Amsterdam *
> * *
> ********************************************************************
>
>
>
> _______________________________________________
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> Help-cfengine@gnu.org
> http://mail.gnu.org/mailman/listinfo/help-cfengine
>
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