A clarification: "whatever kicks Puppet has to run as root as well" could be 
something that doesn't run as root but does have sudo permissions!

-- O

On Apr 6, 2013, at 12:23 PM, Owen Smith wrote:

> Greetings,
> 
> We are using Puppet to deploy application packages, so it can indeed be done. 
> However, you need to do some work around Puppet to enable the use cases 
> you've mentioned:
> 
> * Something builds the package
> * Something publishes the package to the yum repo
> * Something kicks Puppet on the node(s) you want to install on (either 
> starting it up in daemon mode or executing it)
> * Someone (or something) ensures that package declarations are properly 
> assigned to your node.
> * At this point, Puppet takes over, figures out what packages need to be 
> installed/upgraded, and handles that for you, in addition to whatever 
> configuration and service control you've specified.
> 
> In short: you need a build/deployment system that uses Puppet configuration 
> management at its core. In our case, we glued this together ourselves.
> 
> Some things to be aware of:
> * To use the YUM package provider, Puppet must run as root. Therefore, 
> whatever kicks Puppet has to run as root as well. We use MCollective for 
> this, which involves a root agent running as a daemon on the endpoint.
> * Puppet's RPM/YUM providers install packages as root into the standard 
> system RPMDB. So, you can see, by going this route your application packages 
> are going to be handled just like any other system package.
> 
> In other words, the key to making this easy is this: though the user doesn't 
> have root access on the node, the deployment system does. You control who can 
> do what to the node through authentication and authorization in the 
> deployment system itself, and by constraining the set of operations that the 
> deployment system supports.
> 
> Let's say this solution isn't a possibility: for example, you use a custom 
> user/RPMDBs/prefix/RPMRC when installing via RPM. You *can* theoretically 
> make this work with Puppet, but you've got a lot of work on your hands, 
> because the existing package type/providers don't support it. You have my 
> sympathy, because that's where we've been, and over the years we've banged 
> our head against that wall so many times, for many reasons besides Puppet. 
> One of our tenets in moving to Puppet, however, was to stop doing things that 
> made our life needlessly difficult. :-)
> 
> If you go this way, you also need to give some thought as to how you want to 
> upgrade an existing application on the endpoint. One way is to use 'ensure => 
> latest' and configure the YUM repo on the node to point to a new repo with 
> your updated packages when the time comes. Another possibility is to use 
> 'ensure => present' and do an explicit 'yum upgrade' operation through 
> MCollective to get the packages updated; then run Puppet to fix up the rest.
> 
> Hope this helps!
> -- O
> 
> On Apr 4, 2013, at 6:39 AM, Dhaval wrote:
> 
>> Hello Guys,
>> 
>> i want to know, can we use puppet to install application packages ( not 
>> system packages ) .. if yes how , if someone can through some light ..
>> 
>> my requirement is
>> 
>> 1) application team can create package on their own and update in yum repo ( 
>> without root )
>> 2) application team can install package on their own ( without root ) to the 
>> directories mention in rpm ..
>> 
>> let me know if anyone is aware of similar things available ?
>> 
>> Thanks in advance ...
>> 
>> Regards,
>> D
>> 
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