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edit and copy
edit and copy
Fri, 28 May 2004 10:53:26 +1200
I am working on a centralised management system for a collection of
One thing in particular that I'm wondering about is localising files.
The system I've developed so far uses cfengine and subversion together,
such that cfengine checks out and updates a local working copy of /etc
which cfengine then copies into place.
cfengine also maintains permissions and ownerships of files based on
subversion properties; I have some perl scripts which read the svn
properties, sets them on files and directories and creates .cf files so
that cfengine can continue to maintain them when they go live.
This is ok but now I need to go one step further; currently the
subversion repository does not contain any files which require
Ideally, the repository would contain such files (eg /etc/hosts) and
these would go into the working copy on the workstation and cfengine
would copy these into the live /etc directory (or wherever) modifying
them on the way; I don't want the files in the local svn working copy
to be modified and I don't want the unaltered files going into the
live /etc and then being modified, rather the files should be modified
I have found cfperl which looks promising, but I would really rather not
introduce yet another layer. If possible I would like to do this purely
I've found the editfiles component of cfengine baffling to say the
So far, the only thing I can think of is to have cfengine call perl
scripts via shellcommands but this seems a bit heavy-handed.
For example, /etc/hosts needs to be modified for each system, having
mostly the same entries but with the entry for the target host
localised and a entry for its printer.
ie, the generic hosts file would contain (among other, static, things);
cfengine should note the hostname for this machine and its actual IP
address and alter these values to, eg;
where the IP of the local printer is always the network address of the
host and at .100
Any suggestions? (other than RTFM, which I have been doing fairly
regularly since starting this project).
- edit and copy,
Steve Wray <=