通过dockerswarm连接到Qpid时，质子未知的主机

问题描述

我正在使用docker swarm构建集成环境。我对qpid / amqp / proton / pika不太了解。这些组件既可以在本地也可以在各自的docker容器中通过组合和旋转来实现预期的工作。

我有一个使用python和qpid服务器的质子客户端，当使用docker-compose时成功启动了

services:
  qpid:
    image: XX/qpidj:latest
    restart: on-failure
    volumes:
      - ./build_tools/Qpid:/qpid
  client:
    build:
      context: .
      dockerfile: Dockerfile
    restart: on-failure
    environment:
      WAIT_HOSTS: qpid:5672
      WAIT_HOSTS_TIMEOUT: 180

我有一个dockerswarm yaml

services:
  qpid:
    image: XX/qpidj:latest
    volumes:
      - ./Qpid:/qpid
    networks:
      - test
    ports:
      - "5672:5672"
  client:
    image: XX/client:develop
    environment:
      WAIT_HOSTS: qpid:5672
      WAIT_HOSTS_TIMEOUT: 180
    networks:
      - test
networks:
  # create network first using this as attachable does not appear to blend
  # docker network create -d overlay --attachable <name>
  test:
      external: true
      driver: overlay

但是质子抱怨未知的宿主。请参阅下面的调试日志转储

2020-09-07 11:47:09,317 DEBUG:document_converter: Starting Qpid Handler
2020-09-07 11:47:09,318 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_init(<proton._reactor.TimerSelectable object at 0x7f3ea91e9c18>)
2020-09-07 11:47:09,318 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._reactor.TimerSelectable object at 0x7f3ea91e9c18>)
2020-09-07 11:47:09,318 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_INIT(<proton._endpoints.Connection 0x7f3ea91e9c50 ~ 0x23f7ab0>)
2020-09-07 11:47:09,318 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_LOCAL_OPEN(<proton._endpoints.Connection 0x7f3ea91e9f60 ~ 0x23f7ab0>)
2020-09-07 11:47:09,318 DEBUG:proton: connecting to Url('amqp://qpid:5672')...
2020-09-07 11:47:09,319 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_SESSION_INIT(<proton._endpoints.Session 0x7f3ea91e9f28 ~ 0x23f8810>)
2020-09-07 11:47:09,319 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_SESSION_LOCAL_OPEN(<proton._endpoints.Session 0x7f3ea91e9f60 ~ 0x23f8810>)
2020-09-07 11:47:09,319 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_LINK_INIT(<proton._endpoints.Sender 0x7f3ea91e9f28 ~ 0x23f9290>)
2020-09-07 11:47:09,319 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_LINK_LOCAL_OPEN(<proton._endpoints.Sender 0x7f3ea91e9be0 ~ 0x23f9290>)
2020-09-07 11:47:09,320 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_LINK_INIT(<proton._endpoints.Receiver 0x7f3ea91e9fd0 ~ 0x23f9710>)
2020-09-07 11:47:09,320 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_LINK_LOCAL_OPEN(<proton._endpoints.Receiver 0x7f3ea91e9be0 ~ 0x23f9710>)
2020-09-07 11:47:09,320 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_BOUND(<proton._endpoints.Connection 0x7f3ea91e9fd0 ~ 0x23f7ab0>)
2020-09-07 11:47:09,323 DEBUG:proton: Connect trying first transport address: (<AddressFamily.AF_INET: 2>,<SocketKind.SOCK_STREAM: 1>,6,'',('10.0.2.196',5672))
2020-09-07 11:47:09,324 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT(<proton._transport.Transport 0x7f3eafe383c8 ~ 0x23f9b90>)
2020-09-07 11:47:09,325 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_init(<proton._handlers.ConnectSelectable object at 0x7f3ea91e9be0>)
2020-09-07 11:47:09,325 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,326 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,326 DEBUG:proton: Connection succeeded
2020-09-07 11:47:09,327 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,327 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_final(<proton._handlers.ConnectSelectable object at 0x7f3ea91e9be0>)
2020-09-07 11:47:09,327 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_init(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,327 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,328 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,328 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,329 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_writable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,329 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,330 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,330 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,339 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,339 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_readable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,342 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT(<proton._transport.Transport 0x7f3eb1460128 ~ 0x23f9b90>)
2020-09-07 11:47:09,342 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,343 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,343 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,343 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_writable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,343 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,344 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,344 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,346 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,346 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_readable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,346 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT(<proton._transport.Transport 0x7f3eafe383c8 ~ 0x23f9b90>)
2020-09-07 11:47:09,346 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,347 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,347 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,347 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_writable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,347 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,348 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,348 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,352 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,352 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_readable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,352 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_REMOTE_OPEN(<proton._endpoints.Connection 0x7f3eb1460128 ~ 0x23f7ab0>)
2020-09-07 11:47:09,352 DEBUG:proton: connected to qpid
2020-09-07 11:47:09,353 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_REMOTE_CLOSE(<proton._endpoints.Connection 0x7f3eafe383c8 ~ 0x23f7ab0>)
2020-09-07 11:47:09,353 ERROR:proton: Unknown hostname in connection open: 'qpid'
2020-09-07 11:47:09,353 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT_TAIL_CLOSED(<proton._transport.Transport 0x7f3ea91e9f28 ~ 0x23f9b90>)
2020-09-07 11:47:09,353 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,353 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_LOCAL_CLOSE(<proton._endpoints.Connection 0x7f3ea91e9dd8 ~ 0x23f7ab0>)
2020-09-07 11:47:09,353 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT(<proton._transport.Transport 0x7f3eafe383c8 ~ 0x23f9b90>)
2020-09-07 11:47:09,354 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,354 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Yielding
2020-09-07 11:47:09,354 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_quiesced(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,354 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_writable(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,354 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT_HEAD_CLOSED(<proton._transport.Transport 0x7f3eafe383c8 ~ 0x23f9b90>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT_CLOSED(<proton._transport.Transport 0x7f3eb1460128 ~ 0x23f9b90>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_updated(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_final(<proton._selectable.Selectable object at 0x7f3ea91e9fd0>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_CONNECTION_UNBOUND(<proton._endpoints.Connection 0x7f3eafe383c8 ~ 0x23f7ab0>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: PN_TRANSPORT(<proton._transport.Transport 0x7f3eb1460128 ~ 0x23f9b90>)
2020-09-07 11:47:09,355 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: selectable_final(<proton._reactor.TimerSelectable object at 0x7f3ea91e9c18>)
2020-09-07 11:47:09,356 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Stopping
2020-09-07 11:47:09,356 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> recvd Event: reactor_final(<proton._reactor.Container object at 0x7f3ea91e99e8>)
2020-09-07 11:47:09,356 DEBUG:proton: <proton._reactor.Container object at 0x7f3ea91e99e8> Stopping

我已经从与同一基本映像连接到相同docker网络的容器中连接到qpid，并且我已经成功运行

amqpcli send qpid 5672 exchange simple_message -m "Hello there" -v default -u guest

我得到了答复

Connecting to queue @ qpid:5672... SUCCESS!
Message successfully published to exchange [exchange]!

我也可以成功运行nslookup并卷曲qpid：8080-nslookup报告了上面的'10 .0.2.196'地址-尽管Docker检查网络测试显示

"4af056b5f2a7021df9130a9d370f05176776382b5972306709b77166f4ef4c24": {
                "Name": "test_qpid.1.btrzcdn0ixxq4o73qkoziq7dh","EndpointID": "d5a2f63145d21f87ea8a86136b816b9dd1b78fa6189864ff1a7c773577242a89","MacAddress": "02:42:0a:00:02:c5","IPv4Address": "10.0.2.197/24","IPv6Address": ""

我还有另一个使用pika编写的组件，这似乎不是问题

所以我的问题是质子/ dockerswarm在后台执行什么操作以连接到我的qpid容器，为什么它仅在通过compose而不是swarm运行时才起作用（当前是1个节点swarm，试图使它正常工作） 请让我知道是否需要更多信息

解决方法

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