Configuring ssl in rabbitmq.config using rabbitmq docker image - bash

Question

My goal is to set rabbitmq with ssl support, which was achieved previously using below rabbitmq.config file, which resides in host's /etc/rabbitmq path.
Now I want to be able to configure other rabbitmq user and password than defaults guest guest.
I'm using rabbitmq docker image with following docker-compose configuration:
version: '2'
services:
rabbitmq:
build: ./rabbitmq
ports:
- "8181:8181"
expose:
- "15672"
- "8181"
volumes:
- /etc/rabbitmq:/etc/rabbitmq
environment:
RABBITMQ_DEFAULT_USER: user123
RABBITMQ_DEFAULT_PASS: 1234
Rabbitmq config:
[{rabbit,
[
{loopback_users, []},
{heartbeat,0},
{ssl_listeners, [8181]},
{ssl_options, [{cacertfile, "/etc/rabbitmq/ca/cacert.pem"},
{certfile, "/etc/rabbitmq/server/cert.pem"},
{keyfile, "/etc/rabbitmq/server/key.pem"},
{verify,verify_none},
{fail_if_no_peer_cert,false}]}
]}
].
Rabbitmq dockerfile:
from rabbitmq:management
#and some certificate generating logic
I noticed that once upon adding environment section, current rabbitmq.config file is overriden with auto generated configuration possibly by docker-entrypoint.sh file.
For building configuration using the certs I found environment variables that can do this (look here).
However didn't found any reference for defining ssl_listeners section with its port, as seen in below rabbitmq.config
My question is: how can I create the exact configuration as mentioned below using env variables OR how can I remain with mine rabbitmq.config defining rabbitmq with new user and password in some dynamic way (maybe templating the config file)?

Answer 1

Try this
version: '2'
services:
rabbitmq:
build: ./rabbitmq
ports:
- "8181:8181"
expose:
- "15672"
- "8181"
volumes:
- /etc/rabbitmq:/etc/rabbitmq
command: rabbitmq-server
entrypoint: ""
environment:
RABBITMQ_DEFAULT_USER: user123
RABBITMQ_DEFAULT_PASS: 1234
This will override the docker-entrpoint and just run the rabbitmq server. Now the ./docker-entrypoint.sh sets certain environment variables also. Which may be needed in your case. So to make sure you have everything needed