interactive remote powershell (winrm) with client certificate auth

winrm-interactive.rb

#!/usr/bin/ruby
#
# https://github.com/WinRb/WinRM
#

require 'winrm'
opts = { 
  endpoint: 'https://xxx.xxx.xxx.xxx:5986/wsman',
  transport: :ssl,
  client_cert: 'certs/MyClient.cer',
  client_key: 'certs/MyClient.key',
  no_ssl_peer_verification: true
}

conn = WinRM::Connection.new(opts)
conn.shell(:powershell) do |shell|
  output = shell.run('$PSVersionTable') do |stdout, stderr|
    STDOUT.print stdout
    STDERR.print stderr
  end
  command = ""
  until command == "exit\n" do
    print "PS > "
    command = gets
    output = shell.run(command) do |stdout, stderr|
      STDOUT.print stdout
      STDERR.print stderr
    end
  end
  puts "The script exited with exit code #{output.exitcode}"
end