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      1. 使用pika,如何连接运行在docker中的rabbitmq,从docker开始-与外部网络连接?

        Using pika, how to connect to rabbitmq running in docker, started with docker-compose with external network?(使用pika,如何连接运行在docker中的rabbitmq,从docker开始-与外部网络连接?)
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                • 本文介绍了使用pika,如何连接运行在docker中的rabbitmq,从docker开始-与外部网络连接?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我有以下docker合成文件:

                  version: '2.3'
                  networks:
                      default: { external: true, name: $NETWORK_NAME } # NETWORK_NAME in .env file is `uv_atp_network`.
                  
                  services:
                      car_parts_segmentor:
                  #        container_name: uv-car-parts-segmentation
                          image: "uv-car-parts-segmentation:latest"
                          ports:
                              - "8080:8080"
                          volumes:
                              - ../../../../uv-car-parts-segmentation/configs:/uveye/configs
                              - /isilon/:/isilon/
                  #            - local_data_folder:local_data_folder
                          command: "--run_service rabbit"
                          runtime: nvidia
                          depends_on:
                            rabbitmq_local:
                              condition: service_started
                          links:
                            - rabbitmq_local
                          restart: always
                  
                  
                      rabbitmq_local:
                          image: 'rabbitmq:3.6-management-alpine'
                          container_name: "rabbitmq"
                          ports:
                            - ${RABBIT_PORT:?unspecified_rabbit_port}:5672
                            - ${RABBIT_MANAGEMENT_PORT:?unspecified_rabbit_management_port}:15672
                  
                  

                  此程序运行时,docker ps显示

                  21400efd6493   uv-car-parts-segmentation:latest                             "python /uveye/app/m…"   5 seconds ago   Up 1 second    0.0.0.0:8080->8080/tcp, :::8080->8080/tcp                                                                                            joint_car_parts_segmentor_1
                  bf4ab8581f1f   rabbitmq:3.6-management-alpine                               "docker-entrypoint.s…"   5 seconds ago   Up 4 seconds   4369/tcp, 5671/tcp, 0.0.0.0:5672->5672/tcp, :::5672->5672/tcp, 15671/tcp, 25672/tcp, 0.0.0.0:15672->15672/tcp, :::15672->15672/tcp   rabbitmq
                  
                  我要创建到该Rabbitmq的连接。用户:通过是guest:guest

                  我无法执行此操作,在所有情况下,AMQPConnectionError信息都非常贫乏:

                  下面的代码在另一个不相关的容器中运行。

                  connection = pika.BlockingConnection(pika.URLParameters("amqp://guest:guest@rabbitmq/"))
                  connection = pika.BlockingConnection(pika.URLParameters("amqp://guest:guest@localhost/"))
                  

                  还尝试了

                  $ docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' rabbitmq
                  172.27.0.2
                  

                  connection = pika.BlockingConnection(pika.URLParameters("amqp://guest:guest@172.27.0.2/")) #
                  

                  还尝试了

                  
                      credentials = pika.credentials.PlainCredentials(
                          username="guest",
                          password="guest"
                      )
                      parameters = pika.ConnectionParameters(
                          host=ip_address, # tried all above options
                          port=5672,
                          credentials=credentials,
                          heartbeat=10,
                      )
                  
                  

                  请注意,容器car_parts_segmentor能够看到容器rabbitmq。两者都由docker-compose启动。


                  我的假设是这与uv_atp_network两个容器都在其中有关,而我正在尝试从网络外部访问该网络内的坞站。

                  这真的是问题所在吗?

                  如果是,如何实现此目标?

                  面向未来-如何从pika获取更多信息性错误?

                  推荐答案

                  正如我怀疑的那样,问题是名称rabbitmq仅存在于网络uv_atp_network中。

                  尝试连接到该网络的代码在其自身的容器中运行,而该容器不在网络中。

                  解决方案connectcurrent container到网络:

                  import socket
                  
                  
                  client = docker.from_env()
                  network_name = "uv_atp_network"
                  atp_container = client.containers.get(socket.gethostname())
                  client.networks.get(network_name).connect(container=atp_container.id)
                  

                  此后,问题中的上述代码将正常工作,因为rabbitmq可以解析。

                  connection = pika.BlockingConnection(pika.URLParameters("amqp://guest:guest@rabbitmq/"))
                  

                  这篇关于使用pika,如何连接运行在docker中的rabbitmq,从docker开始-与外部网络连接?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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