How to find version of an application on nodes

[Brandon Blackmoor]

I apologize if this is a stupid question, but I am still a novice at Puppet. I have been asked if it is possible to use Puppet to find out if an application (apparmor, specifically) is installed on our various nodes (Ubuntu servers, specifically). The nodes are all running puppet agent and so on. We're currently running Puppet v2016.4.0.

Feel free to point me to existing documentation. I did search first, but my search results either seemed irrelevant or involved way more than what I am actually asking for. I'm not looking to write a new module, for example.

Thank you for any help or guidance you can offer.

[Martin Alfke]

Hi Brandon,

> On 25. Jan 2018, at 23:17, Brandon Blackmoor <bblac...@blackgate.net> wrote:
>
> I apologize if this is a stupid question, but I am still a novice at Puppet. I have been asked if it is possible to use Puppet to find out if an application (apparmor, specifically) is installed on our various nodes (Ubuntu servers, specifically). The nodes are all running puppet agent and so on. We're currently running Puppet v2016.4.0.

PE offers the package inventory (https://puppet.com/docs/pe/2017.3/inspecting_infrastructure/viewing_packages_in_use.html).
This only shows you installed rpm, dpkg, gem packages.

hth,

Martin

>
> Feel free to point me to existing documentation. I did search first, but my search results either seemed irrelevant or involved way more than what I am actually asking for. I'm not looking to write a new module, for example.
>
> Thank you for any help or guidance you can offer.
>
>

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[Jochen Haeberle]

Hi,

You could create a simple facter script to check for a installed software you are interested in.

The facter scripts are run on all nodes and you can check the result on each machine easily.

regards

[jcbollinger]

On Monday, January 29, 2018 at 4:17:56 AM UTC-6, Brandon Blackmoor wrote:

I apologize if this is a stupid question, but I am still a novice at Puppet. I have been asked if it is possible to use Puppet to find out if an application (apparmor, specifically) is installed on our various nodes (Ubuntu servers, specifically). The nodes are all running puppet agent and so on. We're currently running Puppet v2016.4.0.

Feel free to point me to existing documentation. I did search first, but my search results either seemed irrelevant or involved way more than what I am actually asking for. I'm not looking to write a new module, for example.

If you're not using PE, or if the package inventory doesn't meet your needs, then you always have the alternative of writing a custom fact. This will be distributed automatically to nodes, which will evaluate the fact when they make a catalog request, providing the result among all the other fact values.  These will then be recorded in PuppetDB, from which you can query the results, and the values will be available during catalog building as top-scope variables.

John

[Brandon Blackmoor]

We are using Puppet Enterprise, and it looks like the Packages screen may be just what I need.

Unfortunately, it does not appear to be available in Puppet 2016.4.0, which is what we are currently using. I will investigate upgrading our installation.

Thank you.

[Rob Nelson]

Every installation is different, of course, but I found the upgrade process from 2016.4.3 to 2017.3.2 to be remarkably easy, even by the standards of PE upgrades. The docs pre-flight checklist covered everything, it's worth looking into. Just note that the package collection is not on by default and you will need to enable it afterward.

Rob Nelson
rnel...@gmail.com

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[Brandon Blackmoor]

We've upgraded the Puppet master, and are working on the Puppet agents now.

Out of curiosity, is there an example facter script of the type people have mentioned here? I think that would be a useful thing to have on hand.