2.3, 2.4 and 2.5 ruby versions are tested and required. Fog requires 2.0+ for new projects.
With rubygems:
gem install fog-proxmox
With bundler:
Create a Gemfile with:
source 'https://rubygems.org'
gem 'fog-proxmox'
then:
bundler install
irb
require 'fog/proxmox'
Fog::Proxmox.services
This command show you a summary of the available services.