Maybe you could try something like this ?
https://gist.github.com/ahpook/1182243
On 01/09/2014 10:42 AM, Pablo Fernandez wrote:
Dear all,
We are thinking about the possibility of using Puppet in an image-based
cluster. The compute nodes would boot and load the whole image to a
ramdisk, where r/w access is granted afterwards.
Our idea is to have a sample compute node running puppet where to create
the image from, and periodically extract a new image from it. Nodes that
reboot, simply take that image, change the hostname and IP addresses,
and little more (typical in image-based systems). The nice thing about
this is that, since the source image is from a puppetized host, its
clones will be as well! So changes in the puppet configuration will be
applied immediately to the nodes.
Does it sound right? I currently foresee a problem with the puppet node
certificates: is it possible to use a generic certificate, to enable
trust between puppet server and clients, but having each node a
different fqdn and be treated by puppet as different hosts (including
PuppetDB entries)? I saw different facts for each: ::clientcert and
::fqdn, that gave me hopes.
Besides that, do you see any other problem with this type of deployment?
Does anybody have experience with something similar?
Thanks!
BR/Pablo
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Johan De Wit
Open Source Consultant
Red Hat Certified Engineer (805008667232363)
Puppet Certified Professional 2013 (PCP0000006)
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