pip package provider on Redhat

[Sergei Gerasenko]

Hello,

I'm running puppet 3.5.1 and the pip package provider has this bit:

  def self.cmd

    case Facter.value(:osfamily)

      when "RedHat"

        "pip-python"

      else

        "pip"

    end

  end

As you can see, when the OS is RedHat, it wants to use the pip-python command, but it's not available for latest versions of Redhat/CentOS. Is there an easy way to override the command for that provider without altering the puppet source code?

[Ben Ford]

Hi Sergei!

Puppet 3.x is quite old, and in fact has been end-of-lifed for 655 days as of today! (December 31, 2016). It is no longer receiving security or bug fixes. If you upgrade to a modern version, you'll see that there's are new pip and pip3 providers that use the appropriate commands. https://github.com/puppetlabs/puppet/blob/1707f2ca46867651095e01379bd01dab08076b8b/lib/puppet/provider/package/pip.rb#L55-L65

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[Sergei Gerasenko]

Yeah, I know we're old. I'm asking in general though (imagining it would be happening with the current version for example?), what would be an elegant way to fix this?

[David Schmitt]

To answer your original question: no, there is no way to override the ruby code without modifying the ruby code.

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Cheers, David

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[jcbollinger]

On Friday, October 19, 2018 at 7:00:51 AM UTC-5, David Schmitt wrote:

To answer your original question: no, there is no way to override the ruby code without modifying the ruby code.

I guess it depends on what one means by "override".  The existing provider cannot be made to work differently without modifying its code, but one could create a new, distinct provider by either copying or extending the existing one, and make that one operate as desired.  In the "extending" alternative, it is plausible that effecting the desired behavior change would indeed take the form of "overriding", in the Ruby sense of that term.  That still requires Ruby coding, but it does not involve changing shipped with Puppet.

John

[Sergei Gerasenko]

Cool, thank you for the info. I know my options a bit better now.

On Friday, October 19, 2018 at 7:00:51 AM UTC-5, David Schmitt wrote:

[Sergei Gerasenko]

Thank you for your response, John. I know my options now.