Steve Loughran wrote:
> That sounds like quite a rigorous process.
>
> yes, cfengine and lcfg can keep your stuff in control. There's also
> games you can play with vmware/xen hosted images, where the real CPUs
just host the virtual machines, and those you replicate off managed
"gold" images.
yes, this is a technique I have tried, though I have to admit being a
bit 'fundamentally' leary about vmware/xen.
I have been burned a number of times through the testing of software in
such virtual environments...was getting test failures due to issues with
virtual machine; though there was little to indicate this at the
application layer..which led to many man hours spent trying to fix
false positives. I got quickly tired debugging and testing the OS layer,
rather then my application...this was a while back so maybe things have
moved on.
> There is also
> SmartFrog http://smartfrog.org/
> Puppet http://reductivelabs.com/projects/puppet/index.html
yes I have yet to use smartfrog in a commercial setting, though I am a
big fan.
didnt even know about puppet, will take a look.
> both of these have a non-XML language to describe system
configuration, and runtimes to bring up distributed apps. I will cover
smartfog in the deployment chapter of Java-Dev-with-Ant (Jim, would you
like to review that chapter?), while puppet is something I know of but
havent used
would be an honour to review the chapter. just send it along.
> myself. It could be better at low-level linux config, because
smartfrog, being built on java and rmi, needs a lot more of the system
working before it can start configuring across systems.
completely agree.
cheers, Jim Fuller
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