wip: Update pdk and fix unit tests

[arcenik]

Updagrade PDK template and fixes spec error:

• replace $::filebeat_version by $facts['filebeat_version']
• add $queue_size and $registry_file in filebeat class

There is still some error with windows specs:

$ pdk test unit
pdk (INFO): Using Ruby 2.5.3
pdk (INFO): Using Puppet 6.4.0
[✔] Preparing to run the unit tests.
[✖] Running unit tests.
Run options: exclude {:bolt=>true}
  Evaluated 290 tests in 52.3588275 seconds: 1 failures, 0 pending.
failed: rspec: ./spec/classes/install/windows_spec.rb:16: expected that the catalogue would contain Archive[C:/Windows/Temp/filebeat-5.6.2-windows-x86_64.zip]
  filebeat::install::windows on windows-2012 R2-x64 should contain Archive[C:/Windows/Temp/filebeat-5.6.2-windows-x86_64.zip] with creates => "C:/Program Files/Filebeat/filebeat-5.6.2-windows-x86_64"
  Failure/Error:
          # it { is_expected.to compile }
          it { is_expected.to contain_file('C:/Program Files').with_ensure('directory') }
          it {
            is_expected.to contain_archive('C:/Windows/Temp/filebeat-5.6.2-windows-x86_64.zip').with(
              creates: 'C:/Program Files/Filebeat/filebeat-5.6.2-windows-x86_64',

Beside its running on Linux:

$ facter kernel
Linux

[pcfens]

Thanks for the work on this so far. My plan is to drop support for older versions of Filebeat in newer releases of the module, so I'd like to fix tests by removing the tests for Filebeat 5 rather than adding stuff back in.

If you don't have the time to work on this then feel free to close it, but feel free to delete a bunch of code out of the v5 tests too 😄.

[arcenik]

Tests are green again !

[pcfens]

Thanks for all your help on this!

[cdenneen]

FYI the queue_size was removed in a1b47e2 so adding it back to fix tests is probably not correct.

Also the format for queue is no longer like this... there is queue.mem and queue.disk that should be configurable in the YAML:

https://github.com/elastic/beats/blob/main/filebeat/filebeat.reference.yml#L1281-L1335