[159039271] System daemons should not expect to write to `/etc`. This causes issues in environments like docker where `/etc` is frequently on a read-only FS. https://groups.google.com/d/topic/rabbitmq-users/DuxRP0zrMdA/discussion It's unusual for an application to write to /etc, and as the above mailing list discussion shows, /etc is sometimes mounted read-only. We should investigate supporting the plugins file first in /var/lib/rabbitmq, falling back to /etc/rabbitmq.