The mosquitto 2.0 release changed some default behaviors, so the default configuration in the getting started guide did not work anymore.
In summary, anonymous authentication has to be specified explicitly and a listener to the port (for all interfaces) has to be specified, otherwise it is just accessible from within the container.
https://mosquitto.org/documentation/migrating-to-2-0/
The mosquitto 2.0 release changed some default behaviors, so the default configuration in the getting started guide did not work anymore.
In summary, anonymous authentication has to be specified explicitly and a listener to the port (for all interfaces) has to be specified, otherwise it is just accessible from within the container. https://mosquitto.org/documentation/migrating-to-2-0/
Resolves #107