Puppet users - Apr 2013 - Learning puppet: how to use a module?

Hi,

I''m currently learning puppet but I have come across something which I 
can''t figure out from the docs.

I have a rails app, which needs a few Ubuntu packages installed to work. 
Some of those come from a PPA, which is a non-standard repository, which 
needs to be added to the list of repos. I would like to automate this step, 
too.

I have just one node where puppet needs to run, so I just have one file 
which I execute with `puppet apply`. I''m not using a puppetmaster.

The pp file can be viewed 
here: https://github.com/lenniboy/jcheld/blob/master/puppet/jcheld.pp

I have installed the puppetlabs-apt module and I can see that that was 
successful like this:

$ puppet module list
/home/lenni/.puppet/modules
├── puppetlabs-apt (v1.1.0)
└── puppetlabs-stdlib (v4.0.2)

Now, when I run puppet I get the following error:

$ sudo puppet apply puppet/jcheld.pp
Error: Could not find class apt for 
ip-10-59-51-209.eu-west-1.compute.internal on node 
ip-10-59-51-209.eu-west-1.compute.internal
Error: Could not find class apt for 
ip-10-59-51-209.eu-west-1.compute.internal on node 
ip-10-59-51-209.eu-west-1.compute.internal

I think it is likely that I''m not understanding something fundamentally
about how modules are supposed to be used.

Could someone help me out?

Thanks
Leonard

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From the puppet apply man page:

When provided with a modulepath, via command line or config file, puppet 
apply can effectively mimic the catalog that would be served by puppet 
master with access to the same modules, although there are some subtle 
differences. When combined with scheduling and an automated system for 
pushing manifests, this can be used to implement a serverless Puppet site.
http://docs.puppetlabs.com/man/apply.html

So looks like you need to give it the path to where your modules are 
installed. This can be done with --modulepath=/path/to/module/dirctory on 
the command line or with the modulepath configuration setting in the agent 
section of your config file.

On Sunday, April 28, 2013 2:40:01 AM UTC-7, Leonard Ehrenfried
wrote:
>
> Hi,
>
> I''m currently learning puppet but I have come across something
which I
> can''t figure out from the docs.
>
> I have a rails app, which needs a few Ubuntu packages installed to work. 
> Some of those come from a PPA, which is a non-standard repository, which 
> needs to be added to the list of repos. I would like to automate this step,
> too.
>
> I have just one node where puppet needs to run, so I just have one file 
> which I execute with `puppet apply`. I''m not using a puppetmaster.
>
> The pp file can be viewed here: 
> https://github.com/lenniboy/jcheld/blob/master/puppet/jcheld.pp
>
> I have installed the puppetlabs-apt module and I can see that that was 
> successful like this:
>
> $ puppet module list
> /home/lenni/.puppet/modules
> ├── puppetlabs-apt (v1.1.0)
> └── puppetlabs-stdlib (v4.0.2)
>
> Now, when I run puppet I get the following error:
>
> $ sudo puppet apply puppet/jcheld.pp
> Error: Could not find class apt for 
> ip-10-59-51-209.eu-west-1.compute.internal on node 
> ip-10-59-51-209.eu-west-1.compute.internal
> Error: Could not find class apt for 
> ip-10-59-51-209.eu-west-1.compute.internal on node 
> ip-10-59-51-209.eu-west-1.compute.internal
>
> I think it is likely that I''m not understanding something
fundamentally
> about how modules are supposed to be used.
>
> Could someone help me out?
>
> Thanks
> Leonard
>
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On Sunday, April 28, 2013 4:40:01 AM UTC-5, Leonard Ehrenfried
wrote:
>
> Hi,
>
> I''m currently learning puppet but I have come across something
which I
> can''t figure out from the docs.
>
> I have a rails app, which needs a few Ubuntu packages installed to work. 
> Some of those come from a PPA, which is a non-standard repository, which 
> needs to be added to the list of repos. I would like to automate this step,
> too.
>
> I have just one node where puppet needs to run, so I just have one file 
> which I execute with `puppet apply`. I''m not using a puppetmaster.
>
> The pp file can be viewed here: 
> https://github.com/lenniboy/jcheld/blob/master/puppet/jcheld.pp
>
> I have installed the puppetlabs-apt module and I can see that that was 
> successful like this:
>
> $ puppet module list
> /home/lenni/.puppet/modules
> ├── puppetlabs-apt (v1.1.0)
> └── puppetlabs-stdlib (v4.0.2)
>
> Now, when I run puppet I get the following error:
>
> $ sudo puppet apply puppet/jcheld.pp
> Error: Could not find class apt for 
> ip-10-59-51-209.eu-west-1.compute.internal on node 
> ip-10-59-51-209.eu-west-1.compute.internal
> Error: Could not find class apt for 
> ip-10-59-51-209.eu-west-1.compute.internal on node 
> ip-10-59-51-209.eu-west-1.compute.internal
>
> I think it is likely that I''m not understanding something
fundamentally
> about how modules are supposed to be used.
>
I think a key thing you have missed is that when you install a module by 
hand, you are meant to remove the leading "<provider>-" segment
of its
directory name.  Use of such prefixes helps avoid accidentally clobbering 
one module''s contents with those of a distinct yet like-named
module''s, but
you cannot actually have two different modules with the same name installed 
(and functional) at the same time.


John

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Thanks for the hint!

It was indeed the missing module path. I now run puppet the following way, 
which works:

sudo puppet apply --modulepath=/home/lenni/.puppet/modules/ puppet/jcheld.pp

On Monday, April 29, 2013 3:11:51 AM UTC+2, Ellison Marks
wrote:
>
> From the puppet apply man page:
>
> When provided with a modulepath, via command line or config file, puppet 
> apply can effectively mimic the catalog that would be served by puppet 
> master with access to the same modules, although there are some subtle 
> differences. When combined with scheduling and an automated system for 
> pushing manifests, this can be used to implement a serverless Puppet site.
> http://docs.puppetlabs.com/man/apply.html
>
> So looks like you need to give it the path to where your modules are 
> installed. This can be done with --modulepath=/path/to/module/dirctory on 
> the command line or with the modulepath configuration setting in the agent 
> section of your config file.
>
> On Sunday, April 28, 2013 2:40:01 AM UTC-7, Leonard Ehrenfried wrote:
>>
>> Hi,
>>
>> I''m currently learning puppet but I have come across something
which I
>> can''t figure out from the docs.
>>
>> I have a rails app, which needs a few Ubuntu packages installed to
work.
>> Some of those come from a PPA, which is a non-standard repository,
which
>> needs to be added to the list of repos. I would like to automate this
step,
>> too.
>>
>> I have just one node where puppet needs to run, so I just have one file
>> which I execute with `puppet apply`. I''m not using a
puppetmaster.
>>
>> The pp file can be viewed here: 
>> https://github.com/lenniboy/jcheld/blob/master/puppet/jcheld.pp
>>
>> I have installed the puppetlabs-apt module and I can see that that was 
>> successful like this:
>>
>> $ puppet module list
>> /home/lenni/.puppet/modules
>> ├── puppetlabs-apt (v1.1.0)
>> └── puppetlabs-stdlib (v4.0.2)
>>
>> Now, when I run puppet I get the following error:
>>
>> $ sudo puppet apply puppet/jcheld.pp
>> Error: Could not find class apt for 
>> ip-10-59-51-209.eu-west-1.compute.internal on node 
>> ip-10-59-51-209.eu-west-1.compute.internal
>> Error: Could not find class apt for 
>> ip-10-59-51-209.eu-west-1.compute.internal on node 
>> ip-10-59-51-209.eu-west-1.compute.internal
>>
>> I think it is likely that I''m not understanding something
fundamentally
>> about how modules are supposed to be used.
>>
>> Could someone help me out?
>>
>> Thanks
>> Leonard
>>
>
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