nodepool@server:/etc/nodepool$ nodepool dib-image-list
Traceback (most recent call last):
  File "/usr/local/bin/nodepool", line 10, in <module>
    sys.exit(main())
  File "/home/nodepool/src/nodepool/nodepool/cmd/nodepoolcmd.py", line 373, in main
    return npc.main()
  File "/home/nodepool/src/nodepool/nodepool/cmd/nodepoolcmd.py", line 359, in main
    self.zk.connect(config.zookeeper_servers.values())
  File "/home/nodepool/src/nodepool/nodepool/zk.py", line 449, in connect
    self.client = KazooClient(hosts=hosts, read_only=read_only)
  File "/usr/local/lib/python2.7/dist-packages/kazoo/client.py", line 191, in __init__
    self.set_hosts(hosts)
  File "/usr/local/lib/python2.7/dist-packages/kazoo/client.py", line 393, in set_hosts
    self.hosts, chroot = collect_hosts(hosts)
  File "/usr/local/lib/python2.7/dist-packages/kazoo/hosts.py", line 26, in collect_hosts
    raise ValueError("bad hostname")
ValueError: bad hostname