On Oct 27, 2010, at 5:02 PM, Douglas Garstang wrote:
> On Mon, Oct 25, 2010 at 1:21 AM, James Turnbull <ja...@puppetlabs.com> wrote:
> ajinkya prabhune wrote:
> > Hi,
> >
> > So what do u thing is good and better than Puppet ?
> >
> > thanks
>
> I second Nigel's question. I know a number of people who deploy Java,
> Ruby, PHP, etc, etc applications with Puppet.
>
> Me too. I do it several times a day.
Can you guys describe the sort of applications you deploy, how they are
delivered to the target, and how you deal with "rolling bounces" (start on node
A, shutdown JVM, deploy code, start JVM, move to node B, etc.) ? Are you just
doing this by ordering puppet runs externally? If so, what manages the
ordering?
How do you tell puppet which version / package of the code to install? Do you
generate manifests with this information? Is it a fact? extlookup?
I'd also be interested to know how / if you handle deployment of multiple apps
to the same container. Imagine you have a dependency like this (pseudo puppet
code):
app1: { require => [ exec[ "shutdown-jvm1"], deploy["app1"],
exec["start-jvm1"] ] }
app2: { require => [ exec[ "shutdown-jvm1"], deploy["app2"],
exec["start-jvm1"] ] }
.. when you deploy app1 and app2 at the same time (ie, within the same puppet
run), are you able to make puppet only apply the first shutdown and the last
startup? (basically, optimize it & just shutdown jvm1 once, deploy both app1
and app2, then start jvm1.) We do this today with home-grown code but I'd like
to move it into puppet if possible.
Thanks!
James
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