remote_esx_controller.rb

# This controller was built against: 
# VMware ESX Host Agent 4.1.0 build-348481

module Lab
module Controllers
module RemoteEsxiController
    
  # Note that 3.5 was different (vmware-vim-cmd)
  VIM_CMD = 'vim-cmd'.freeze

  def self.dir_list(basepath=nil)
    # Does this method really even make sense for esx?
    return "Unsupported :("
  end

  def self.running_list(user, host)
    user.gsub!(/(\W)*/, '')
    host.gsub!(/(\W)*/, '')

    # first get all registered vms
    registered_vms = self.get_vms(user, host) || []
    running_vms = []

    # now let's see which ones are running
    # TODO:  this is ghetto, would be better not to connect repeatedly
    registered_vms.each do |vm|
      remote_cmd = "ssh #{user}@#{host} \"#{VIM_CMD} vmsvc/power.getstate #{vm[:id]}\""
      raw = `#{remote_cmd}`
      running_vms << vm if raw =~ /Powered on/
    end

    return running_vms
  end

private 

  def self.get_vms(user, host)
    user.gsub!(/(\W)*/, '')
    host.gsub!(/(\W)*/, '')
    
    vms = [] # array of VM hashes
    remote_cmd = "ssh #{user}@#{host} \"#{VIM_CMD} vmsvc/getallvms | grep ^[0-9] | sed 's/[[:blank:]]\\{3,\\}/ /g'\""
    raw = `#{remote_cmd}`.split("\n")

    raw.each do |line|
      # So effing ghetto
      id_and_name = line.split('[datastore').first
      id = id_and_name.split(' ').first
  
      ## TODO - there's surely a better way to do this.
      name_array = id_and_name.split(' ')
      name_array.shift
      name = name_array.join(' ')
      vms << {:id => id, :name => name}
    end
    
    return vms
  end
  
end
end
end