Custom Types and Providers

[Michael Legleux]

Using puppet 3.62

Trying to follow along with the book

At one point (beginning of ch. 3), it says using irb:

>> require 'puppet'

>> Puppet::Type.type(:package)

=> Puppet::Type::Package

My output is identical

However the next bit diverges...

>> require 'puppet'

>> Puppet.parse_config

>> Puppet::Type.type(:custom_package).provide(:apt)

=> Puppet::Type::Custom_package::ProviderApt

Puppet.parse_config returns "notice"

and

Puppet::Type.type(:custom_package).provide(:apt)  does not return Puppet::Type::Custom_package::ProviderApt as Puppet::Type.type(:custom_package) is returning nil.

my tree is identical to the books (save for the rpm and yum providers)

.

└── lib

    └── puppet

        ├── provider

        │   └── custom_package

        │       └── apt.rb

        └── type

            └── custom_package.rb

Is this book still 100% relevant or are parts achieving obsolescence?

[Dan Bode]

My best guess is that modulepath is not configured to the correct location.

After you run parse_config, see what Puppet[:modulepath] returns (it needs to maps to the path that contains the directory with your lib dir in it).

    ie: <module_path>/fake_module/lib

parse_config should load the default settings for Puppet which is either /etc/puppet/modules or whatever you set in puppet.conf

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[Michael Legleux]

Puppet[:modulepath] returns:

=> "/etc/puppet/modules:/usr/share/puppet/modules"

The tree I posted previously is located in /etc/puppet/modules/example (as the book had laid out.)

The module path must be correct (as I explain in a bit) since i see it all referenced when I run puppet on the agent I put my test class on.

Also, calling (on the master)

puppet resource custom_package 'foo' ensure=present --debug 

also seems to work just fine, I'm just seeing a disconnect between irb.

Irb seeing my modules would definitely accelerate my puppet learning.

I took what little i learned so far and tried to make a provider for a simple type. The provider has "exists?", "create" and" destroy" defined (but create and destroy are blank).

In the provider called  powershell.rb i used commands as: commands :posh => 'powershell' 

then in exists? i called:

posh('Test-Path', resource[:local])

When i run puppet agent -t --debug on the agent

I see that puppet is executing my command and "resource[:local]" is corrected interpreted to what I put in the class definition, but I don't see the output of the command during the run.

How can make sure that output gets logged somehow? The command definitely should return true or false

I hope I made myself clear and aren't digressing.

[Rob Reynolds]

On Thu, Jul 10, 2014 at 7:43 PM, Michael Legleux <leg...@gmail.com> wrote:

Using puppet 3.62

Trying to follow along with the book

At one point (beginning of ch. 3), it says using irb:

>> require 'puppet'

>> Puppet::Type.type(:package)

=> Puppet::Type::Package

My output is identical

However the next bit diverges...

>> require 'puppet'

>> Puppet.parse_config

>> Puppet::Type.type(:custom_package).provide(:apt)

=> Puppet::Type::Custom_package::ProviderApt

Are you in the root of your custom module folder when you type irb? 

 

Puppet.parse_config returns "notice"

and

Puppet::Type.type(:custom_package).provide(:apt)  does not return Puppet::Type::Custom_package::ProviderApt as Puppet::Type.type(:custom_package) is returning nil.

my tree is identical to the books (save for the rpm and yum providers)

.

└── lib

    └── puppet

        ├── provider

        │   └── custom_package

        │       └── apt.rb

Ensure your namespace is correct for the apt.rb file. 

 

        └── type

            └── custom_package.rb

Is this book still 100% relevant or are parts achieving obsolescence?

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Rob Reynolds

Developer, Puppet Labs

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[Michael Legleux]

I tried starting irb from various places along that tree and as my user and root.

The /etc/puppet/modules/example/lib/puppet/provider/custom_package/apt.rb file contains:

Puppet::Type.type(:custom_package).provide(:apt) do

  def exists?

  end

  def create

  end

  def destroy

  end

  end

end