Add an option to skip logrotate installation

[bobrik]

Some people run on weird systems without apt (like Gentoo), but still want to use configuration management tools. I can come up with PR that allows to skip logrotate installation. What do you think?

[nickhammond]

I'm not very familiar with Gentoo but it sounds like whatever other management tool you're using relies on or can use the /etc/logrotate configuration, is that correct? What would be the typical setup steps then? Sorry for the delayed reply, this didn't make it to my inbox for some reason.

[bobrik]

This one fails:

- name: nickhammond.logrotate | Install logrotate
  action: "{{ansible_pkg_mgr}} pkg=logrotate state=present"

In Gentoo ansible_pkg_mgr resolves to portage: http://docs.ansible.com/portage_module.html

Error: msg: unsupported parameter for module: pkg

I think we could change task to this:

    - name: nickhammond.logrotate | Install logrotate
      action: "{{ansible_pkg_mgr}} pkg=logrotate state=present"
      when: logrotate_install_package

With default value of logrotate_install_package set to true. This way it would be backwards-compatible and usable by people whose package management module does not work like apt.

What do you think?

[nickhammond]

That makes sense to me, let me know if you still want to submit a PR or I can work on it too.

[rcuza]

I had a need for this flag so I made PR #43.