Relative paths in puppet ruby task to execute a file

[Vinay Korrapati]

Hi Team,

I have a ruby task which calls a .ps1 file on puppet master. As a part of calling the puppet file i need to define the file path in ruby task. 

file_path = "/etc/puppetlabs/code/environments/<env name>/modules/<module name>/files/<file name>.ps1"

      script_params = "<parameters>"

# execution of the script      

cmd_output = `/opt/microsoft/powershell/7/pwsh -NonInteractive -File #{file_path} #{script_params}`

Can someone please suggest how to replace the file_path with relative paths in ruby task?

Regards

Vinay

[lu...@puppet.com]

Hi!

You'll want to specify the .ps1 file as a 'file' in your task metadata, and then can refer to it relative to the task itself as ../../file.ps1 from your ruby task. This doc (https://puppet.com/docs/pe/2019.8/writing_tasks.html#sharing_task_code) explains it a bit better.

[Vinay Korrapati]

Hi Lucy,

Thanks for your response. 

I already tried and faced the below issue while loading the file.

`require_relative': cannot load such file -- /opt/puppetlabs/pxp-agent/spool/98/temp_task_5881-56e6-b035-6d66/files/testfile.ps1

Its pointing the different path than the expected one : etc/puppetlabs/code/environment/<env name>/modules/<modulename>/files  

Thanks & Regards 

Cordially, 

VINAYABABU KORRAPATI
+91-9703333781
vina...@gmail.com

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[Lucy Wyman]

Right, I don't think you can "import" a powershell script into a ruby script (at all, in any situation), but you can call the script directly from the ruby script with something like:

$result = `powershell.exe ../../testfile.ps1`

Having the file in your environment is mostly useful for being able to load it through Puppetserver and being able to reference it by `module/name`, but when PE goes to run the task it will upload it to the remote machine to a temporary directory to execute it. By specifying the file in your task metadata, PE will *also* upload the required file alongside the task file so it's in a predictable location and can be used on the remote system.

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[Vinay Korrapati]

Hi Lucy,

Thanks for the explanation. Yeah, we are trying to run the powershell script on the puppet server through a ruby task.  

script_path = "/etc/puppetlabs/code/environments/#{env_name}/modules/<module name>/files/testfile.ps1"

      script_params = "<parameters>"

      # Execute the script

      cmd_output = `/opt/microsoft/powershell/7/pwsh -NonInteractive -File #{script_path} #{script_params}`

Here the env_name is varied either it should be a DEVELOPMENT or PRODUCTION , so I would like to replace the path with relative path. Please suggest if any alternative approach is there to achieve this ?

Thanks & Regards 

Cordially, 

VINAYABABU KORRAPATI
+91-9703333781
vina...@gmail.com

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