Question

当我从我的图像运行一个docker容器时，我尝试添加一个rabbitmq用户，但它抱怨该节点已关闭：

Error: unable to connect to node rabbit@3af546685019: nodedown

DIAGNOSTICS
===========

attempted to contact: [rabbit@3af546685019]

rabbit@3af546685019:
  * connected to epmd (port 4369) on 3af546685019
  * epmd reports: node 'rabbit' not running at all
                  no other nodes on 3af546685019
  * suggestion: start the node

current node details:
- node name: 'rabbitmq-cli-55@3af546685019'
- home dir: /var/lib/rabbitmq
- cookie hash: pgr3C5mfbuw86BKnW7cJpw==

Error: unable to connect to node rabbit@3af546685019: nodedown

这是我的Dockerfile：

FROM rabbitmq:3.6.14

ADD rabbitmq_users.sh /usr/lib/rabbitmq/bin
WORKDIR /usr/lib/rabbitmq/bin
RUN rabbitmq-plugins enable --offline rabbitmq_management
ENTRYPOINT ["rabbitmq_users.sh"]

EXPOSE 4369 25672 5672 15672

和rabbitmq_users.sh：

#!/bin/sh

echo "Creating a user..."
sleep 10
rabbitmqctl add_user rmquser rmquser 2>/dev/null
rabbitmqctl set_user_tags rmquser administrator
rabbitmqctl set_permissions -p / rmquser ".*" ".*" ".*"

看起来它先从rabbitmq运行rabbitmq-server之前执行rabbitmq_users.sh：3.6.14我继承的图像因为我看不到任何证明rabbitmq服务器启动的日志。例如，如果我不创建禁用此ENTRYPOINT脚本的用户，则服务器启动并且工作正常。

有人可以帮我解决这个问题吗？

Answer 1

rabbitmq image已将入口点定义为ENTRYPOINT ["docker-entrypoint.sh"]。定义入口点时，将覆盖基本映像中定义的入口点。因此，rabbitmq不会开始。你需要做的是＆＃34;追加＆＃34;您的用户脚本：

FROM rabbitmq:3.6.14

ADD rabbitmq_users.sh /usr/lib/rabbitmq/bin
WORKDIR /usr/lib/rabbitmq/bin
RUN rabbitmq-plugins enable --offline rabbitmq_management
ENTRYPOINT ["./usr/local/bin/docker-entrypoint.sh rabbitmq-server && ./rabbitmq_users.sh"]

EXPOSE 4369 25672 5672 15672

Answer 2

我可以通过像这样调整我的rabbitmq_users.sh来实现它：

#!/bin/sh

# Create Rabbitmq user
(rabbitmqctl add_user rmquser rmquser 2>/dev/null ; \
rabbitmqctl set_user_tags rmquser administrator ; \
rabbitmqctl set_permissions -p / rmquser  ".*" ".*" ".*" ; \
echo "User 'rmquser' has been created") & rabbitmq-server

并使用CMD而不是ENTRYPOINT，我提供了我的脚本：

...
CMD ["rabbitmq_users.sh"]

无法在Docker文件中添加rabbitmq用户

2 个答案: