How to fix 'Cookie file /var/lib/rabbitmq/.erlang.cookie must be accessible by owner only' error in windows server 2019 with DockerProvider service

user_4835498 0
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I'm installed docker in windows server 2019 with DockerProvider I'm using this code 

Install-Module DockerProvider
Install-Package Docker -ProviderName DockerProvider -RequiredVersion preview
[Environment]::SetEnvironmentVariable("LCOW_SUPPORTED", "1", "Machine")

after that I install Docker-Compose with this code 

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest "https://github.com/docker/compose/releases/download/1.24.0/docker-compose-Windows-x86_64.exe" -UseBasicParsing -OutFile $Env:ProgramFiles\Docker\docker-compose.exe

after that I use a docker compose file 

version: "3.5"

services:


  rabbitmq:
    # restart: always
    image: rabbitmq:3-management
    container_name: rabbitmq
    ports:
      - 5672:5672
      - 15672:15672
    networks:
      - myname
    # network_mode: host
    volumes: 
      - rabbitmq:/var/lib/rabbitmq



networks:
  myname:
    name: myname-network

volumes:
  rabbitmq:
    driver: local

everything is Ok up to here but after i call http://localhost:15672/ url in my browser rabbitmq crashes and I see this error in docker logs <container-id>

Cookie file /var/lib/rabbitmq/.erlang.cookie must be accessible by owner only

this .yml file is working correctly in docker for windows but after running the file in windows server, I see this error

rabbitmq-management windows-server-2019 docker-compose docker rabbitmq
2 Answers
user_3153520

You also have the option to overwrite the command of the docker image to fix the issue it is complaining about. Assuming that your cookie file is /var/lib/rabbitmq/.erlang.cookie, replace the original docker image command, which is probably:

["rabbitmq-server"]

with:

["bash", "-c", "chmod 400 /var/lib/rabbitmq/.erlang.cookie; rabbitmq-server"]

In your docker-compose file it will look like this:

...
image: rabbitmq:3-management
...
ports:
- "5672:5672"
- "15672:15672"
volumes:
- ...
command: ["bash", "-c", "chmod 400 /var/lib/rabbitmq/.erlang.cookie; rabbitmq-server"]

Of course, you introduce here some workaround/technical debt that you assume rabbitmq-server will stay like that in the future.

user_4541030
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