def try_connect(server)
      c = ::Etcd.client(host: server, port: port, allow_redirect: @redirect)
      begin
        c.get '/_etcd/machines'
        return c
      rescue
        puts "ETCD: failed to connect to #{c.host}:#{c.port}"
        return nil
      end
    end
def try_connect(server)
      c = ::Etcd.client(host: server, port: port, allow_redirect: @redirect)
      begin
        c.get '/_etcd/machines'
        return c
      rescue
        puts "ETCD: failed to connect to #{c.host}:#{c.port}"
        return nil
      end
    end
Try to grab an etcd connection

 @param [String] server  ()  The server to try to connect too