为了避免大家机毁人亡，徒耗精力搜索到一堆没用的重复旧文，我决定写下这篇关于docker容器化的celery 无法连接rabbitmq的文章，以增强互联网的技术氛围和工程师的原创精神

worker_1  | [2023-01-07 05:52:27,995: ERROR/MainProcess] consumer: Cannot connect to amqp://admin:**@127.0.0.1:5672//: [Errno 111] Connection refused.
worker_1  | Trying again in 4.00 seconds... (2/100)

rabbitmq  |   Starting broker... completed with 3 plugins.

Hmm...rabbitmq运行是良好的，浏览器正常访问 localhost:15672

尝试解决solution 1

有人说要创建conf.d文件并且添加NODE_IP_ADDRESS=127.0.0.7,然并卵

docker cp  containerId:/etc/rabbitmq/conf.d/10-defaults.conf ./
# add this line into 10-defaults.conf
NODE_IP_ADDRESS=127.0.0.1

尝试解决 solution 2

有人说要暴露 5672端口，然并卵

environment:RABBITMQ_DEFAULT_USER: adminRABBITMQ_DEFAULT_PASS: admin
expose:- 5672

尝试解决 solution 3

有人说要加上links,然并卵

 worker:...links:- db- rabbitmqdepends_on:- rabbitmq

尝试解决 solution 4

有人说 要检查端口映射关系，可能是ports属性没有成功映射，Hmmm...看起来没问题呀，然并卵...

docker port rabbitmq15672/tcp -> 0.0.0.0:1567215672/tcp -> :::1567222/tcp -> 0.0.0.0:2222/tcp -> :::225672/tcp -> 0.0.0.0:56725672/tcp -> :::5672

docker-desktop rabbitmq show

:::15672 有人说是因为 无法识别:::15672 这样的IPV6地址,若有所思看了看，突然想到，或许是因为IPv4的原因?

ONE NIGHT SLEEP LATER...

隔天早上接着思考

为每个容器设置固定IP吧，Let's go

修复

创建了networks,然后为每个容器添加了networks属性并设定了固定IP

networks:nn:ipam: driver: defaultconfig:- subnet: "192.168.5.0/24"services:rabbitmq:image: rabbitmq:3.11-managementcontainer_name: rabbitmqhostname: rabbitenvironment:RABBITMQ_DEFAULT_USER: adminRABBITMQ_DEFAULT_PASS: adminvolumes:- ./rabbitmq:/var/lib/rabbitmq- ./conf:/etc/rabbitmqprivileged: trueports:- 15672:15672- 5672:5672- 22:22expose:- 5672networks:nn:ipv4_address: "192.168.5.4"worker:build:context: .dockerfile: Dockerfilecommand: celery -A  celery_tasks.sms.tasks worker -l infovolumes:- ./celery:/appdepends_on:- rabbitmqnetworks:nn:ipv4_address: "192.168.5.6"

It works!

终于，开心的看到了celery连接上了他的broker大哥，GG!

rabbitmq  |   Starting broker... completed with 3 plugins.
worker_1  | [2023-01-07 05:52:32,011: INFO/MainProcess] Connected to amqp://admin:**@192.168.5.4:5672//
worker_1  | [2023-01-07 05:52:32,026: INFO/MainProcess] mingle: searching for neighbors
worker_1  | [2023-01-07 05:52:33,060: INFO/MainProcess] mingle: all alone
worker_1  | [2023-01-07 05:52:33,100: INFO/MainProcess] celery@4a0189310984 ready.

network-configuration-reference 官方关于network的文档