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On 08/07/2012 04:49 PM, Ryan Byrd wrote:
> Linux Friends:
>
> Picture this: a "friend of mine" just set up a redhat linux machine
> running a website with apache/php/etc. It took a long time to get
> everything just right.
>
> Goal: He'd like so-called clone this live-running machine's files
> to a new freshly installed clean redhat linux machine so he doesn't
> have to repeat the effort. He wants two webservers all set up
> whereas he has only one presently.
>
> He's imagining something like this:
>
> [root@CurrentlyRunningServer ~]$ rsync -ave ssh --delete /*
> root@NewServer:/
> --exclude={/etc/sysconfig/*,/dev/*,/proc/*,/sys/*,/tmp/*,/run/*,/mnt/*,/media/*,/lost+found,/home/*/.gvfs}
>
>
Doing rsync manually is always asking for trouble. Luckily your
"friend" isn't the first to think of this idea. Prior to getting
proper configuration management in place in a past job I used the tool
called systemimager[1] which is built for *EXACTLY* this use case. It
uses rsync on the back end and works around all the corner cases
you're probably gonna miss.
If I wasn't able to convince him to run proper configuration
management, I'd suggest the systemimager route.
However, configuration management has gotten much simpler lately with
the Ansible[2] project. He should give that a shot. It's extremely
simple config management.
[1]: http://www.systemimager.org/
[2]: http://ansible.github.com/
- --
Derek
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