glad to see you found the solution already. Note that on Linux (and MacOS) you can also use named volumes. The notation you are using here (with “:”) is translated to direct volume mounts, so they won’t show up if you use “docker volume ls”.
BTW I would strongly advise against setting the container’s hostname to “localhost”, as that is a reserved name. You can instead add another volume for “/config” and put a file “axonserver.properties” in there with “axoniq.axonserver.hostname=localhost”. This will do what you want, without confusing the rest of Docker. Another way to achieve this result would be to define a secret for the properties file and mount that into the “/config” directory: