Docker和Rabbitmq:容器之间的ECONNREFUSED

Question

我正在尝试为rabbitmq和容器的使用者设置单独的docker容器,即侦听队列并执行必要任务的进程.我创建了yml文件和docker文件.

我能够运行yml文件,但是当我检查docker-compose日志时,我看到有ECONNREFUSED错误的位置.

NewUserNotification.js:

require('seneca')()
    .use('seneca-amqp-transport')
    .add('action:new_user_notification’, function(message, done) {
        … 

        return done(null, {
        pid: process.pid,
        status: `Process ${process.pid} status: OK`
    })
    .listen({
        type: 'amqp',
        pin: ['action:new_user_notification’],
        name: 'seneca.new_user_notification.queue',
        url: process.env.AMQP_RECEIVE_URL,
        timeout: 99999
    });

docker-compose日志中的错误消息:

    {"notice":"seneca: Action hook:listen,role:transport,type:amqp failed: connect ECONNREFUSED 127.0.0.1:5672.","code":
    "act_execute","err":{"cause":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1",
    "port":5672},"isOperational":true,"errno":"ECONNREFUSED","code":"act_execute","syscall":"connect","address":"127.0.0.1",
    "port":5672,"eraro":true,"orig":{"cause":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1",
    "port":5672},"isOperational":true,"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":5672},
    "seneca":true,"package":"seneca","msg":"seneca: Action hook:listen,role:transport,type:amqp failed: connect ECONNREFUSED 127.0.0.1:5672.",
    "details":{"message":"connect ECONNREFUSED 127.0.0.1:5672","pattern":"hook:listen,role:transport,type:amqp","instance":"Seneca/…………/…………/1/3.4.3/-“,
    ”orig$":{"cause":{"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":5672},"isOperational":true,
"errno":"ECONNREFUSED","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":5672}

示例docker-compose.yml文件:

version: '2.1'
services:
 rabbitmq:
    container_name: "4340_rabbitmq"
    tty: true
    image: rabbitmq:management
    ports:
      - 15672:15672
      - 15671:15671
      - 5672:5672
    volumes:
      - /rabbitmq/lib:/var/lib/rabbitmq
      - /rabbitmq/log:/var/log/rabbitmq
      - /rabbitmq/conf:/etc/rabbitmq/
account:
    container_name: "account"
    build:
      context: .
      dockerfile: ./Account/Dockerfile
    ports:
      - 3000:3000
    links:
      - "mongo"
      - "rabbitmq"
    depends_on:
      - "mongo"
      - "rabbitmq"
new_user_notification:
    container_name: "app_new_user_notification"
    build:
      context: .
      dockerfile: ./Account/dev.newusernotification.Dockerfile
    links:
      - "mongo"
      - "rabbitmq"
    depends_on:
      - "mongo"
      - "rabbitmq"
    command: ["./wait-for-it.sh", "rabbitmq:5672", "-t", "90", "--", "node", “newusernotification.js"]

amqp连接字符串:( 我试过两种方式,有和没有用户/通行证)amqp://用户名:密码@ rabbitmq:5672

我将link属性添加到docker-compose文件中,并在.env文件(rabbitmq)中引用了该名称.我试图从容器外部运行NewUserNotification.js文件,它开始运行正常.什么可能导致这个问题？连接字符串问题？Docker-Compose.yml配置问题？其他？

Answer 1

似乎环境变量AMQP_RECEIVE_URL没有正确构造。根据错误日志，侦听器正在尝试连接到 localhost(127.0.0.1)，这不是 rabbitmq 服务容器 IP。查找工作示例的修改配置。

1 docker-compose.yml

version: '2.1'
services:
 rabbitmq:
    container_name: "4340_rabbitmq"
    tty: true
    image: rabbitmq:management
    ports:
      - 15672:15672
      - 15671:15671
      - 5672:5672
    volumes:
      - ./rabbitmq/lib:/var/lib/rabbitmq
 new_user_notification:
    container_name: "app_new_user_notification"
    build:
      context: .
      dockerfile: Dockerfile
    env_file:
      - ./un.env
    links:
      - rabbitmq
    depends_on:
      - rabbitmq
    command: ["./wait-for-it.sh", "rabbitmq:5672", "-t", "120", "--", "node", "newusernotification.js"]

2 un.env

AMQP_RECEIVE_URL=amqp://guest:guest@rabbitmq:5672

请注意，我已将AMQP_RECEIVE_URL作为环境变量传递给new_user_notification服务 usingenv_file并摆脱了该account服务

3 Dockerfile

FROM node:7
WORKDIR /app
COPY newusernotification.js /app
COPY wait-for-it.sh /app
RUN npm install --save seneca
RUN npm install --save seneca-amqp-transport

4newusernotification.js在问题中使用相同的文件。

5等待它.sh