Puppet users - Jun 2013 - Running the same command (exec) multiple times?

Hi all,

I am currently writing a graylog2 module for puppet on centos 6.3 and
need to update Ruby on target machine to 1.9.3 although there is already
an older version (1.8.7) installed.

Therefore I decided to use rvm but for writing a more general puppet module
I need to invoke commands like ruby, gem and bundle without the trailing
version numbers.

A simple ''rvm use 1.9.3 --default'' does the job but I happen
to need
multiple invocations of this command during further installation progress.
(one after installing ruby using rvm, the second after installing rubygems
and a third after installing the bundler, depending on configured complexity
of the puppet ruby module when being used)

My question:
- Is it possible to trigger a puppet exec type multiple times and can it 
also
   be executed (the command) multiple times?
   Afaik the usual puppet behaviour is to trigger each resource only
   a single time. But maybe there is a special way to realize my 
requirement?

Thanks in advance,
Stefan


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The way Puppet is built today, you can''t trigger the same exec resource
multiple times in a single run. 

However, the exec resource type is kind of special: the value of the 
namevar ("command") doesn''t have to be globally unique; only
the title has
to be unique. Basically, to deal with cases like yours. 

So in your case, since you know how many times rvm has to be executed, you 
can actually make three exec resources (with different titles) that use the 
same command value. They can all have different behavior to account for 
their needs (refreshonly => true on the last one, maybe, or whatever). 

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