persistent shared data directory not working after deleting container

[rajalokan]

I've deployed a rabbitmq container using docker-compose which works absolutely fine. But when I stop the service, remove the container and then restart again I don't see rabbitmq data persistent.

Here is how to reproduce it:

docker-compose.yml:

rabbitmq:
  image: dockerfile/rabbitmq
  container_name: rabbitmq
  volumes:
    - /srv/docker/osod/rabbitmq:/data/mnesia
  ports:
    - "5672:5672"
    - "15672:15672"

Dockerfile

Same as https://github.com/dockerfile/rabbitmq/blob/master/Dockerfile

Steps:

docker-compose up -d rabbitmq
docker exec -it rabbitmq rabbitmqctl list_users
    Listing users ...
    guest   [administrator]
docker exec -it rabbitmq rabbitmqctl add_user user1 123
    Creating user "user1" ...
docker exec -it rabbitmq rabbitmqctl set_permissions user1 ".*" ".*" ".*"
    Setting permissions for user "user1" in vhost "/" ...
docker exec -it rabbitmq rabbitmqctl list_users
    Listing users ...
        user1   []
        guest   [administrator]

Now when I stop, remove and start container again

docker-compose stop
docker rm $(docker ps -aq --filter "status=exited")
docker-compose up -d rabbitmq
docker exec -it rabbitmq rabbitmqctl list_users
    Listing users ...
    guest   [administrator]

As we can see user1 is missing. Can you please suggest where I'm doing wrong. Doing same with mysql persisted data works though.

[PeterHajdu]

Hi @rajalokan,

I've just had a similar problem and the solution was to set a fix hostname for the rabbitmq container. rabbitmq creates the database directory using the hostname. If it is not fix, it recreates a folder each time the container is started and does not reuse the previous one which contains all persisted messages.

[sdejean28]

one solution is to tell rabbitmq which node name to use with an environmental variable in the rabbitmq definition :
environment:
RABBITMQ_NODENAME: node@rabbitmq