Re: Use of editfile to support templated configuration files

[Ted Zlatanov]

On 14 Dec 2004, wbmccarty@gmail.com wrote:

> Alternatively, I'd like to somehow be able to specify a hierarchy of
> host groups, and have cfengine choose the file at the lowest level for
> which a  version of the file exists. This would be pretty easily done
> using an external module. But, I'd prefer to avoid external modules for
> now and I don't see how to manage such a hierarchy concisely using
> cfengine scripts.

In addition to the templating that I mentioned in another message in
this thread, cfperl (http://lifelogs.com/cfperl) has this
functionality as well.  It can pick the correct version of a file from
a hierarchy (directories in the hierarchy are class names) and install
it.  The *deepest* match is preferred, because if you have a config
file for "linux" and another for "linux/redhat/exposed" you want to
pick the latter for a Redhat machine exposed to the outside.  I think
that's what you mean by "lowest level" in the hiearchy.

cfperl is an external program, but can coexist with cfengine cleanly
and share the group definitions.

Ted