Method: KnifeCloudstack::CsServerCreate#is_ssh_open?

Defined in:
lib/chef/knife/cs_server_create.rb

#is_ssh_open?(ip) ⇒ Boolean

noinspection RubyArgCount,RubyResolve

Returns:

  • (Boolean) 


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# File 'lib/chef/knife/cs_server_create.rb', line 281

def is_ssh_open?(ip)
  s = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
  sa = Socket.sockaddr_in(22, ip)

  begin
    s.connect_nonblock(sa)
  rescue Errno::EINPROGRESS
    resp = IO.select(nil, [s], nil, 1)
    if resp.nil?
      sleep SSH_POLL_INTERVAL
      return false
    end

    begin
      s.connect_nonblock(sa)
    rescue Errno::EISCONN
      Chef::Log.debug("sshd accepting connections on #{ip}")
      yield
      return true
    rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
      sleep SSH_POLL_INTERVAL
      return false
    end
  ensure
    s && s.close
  end
end