When using the LMDB backend with the auth image, please make sure that any containers that might access the database volume do not have overlapping PIDs - otherwise you will get locking problems and possibly resulting corruption.
In a plain Docker or Compose setup, this can be done by using the host PID namespace.
+
+# Compose example
+
+We have a Docker Compose example at https://github.com/PowerDNS/pdns/blob/master/docker-compose.yml .
+It brings up all three services, and exposes them to eachother by name (using Docker's internal DNS).
+In the dockerdata dir, you can find an example dnsdist Lua config (with Python helper to make DNS lookups non-blocking for dnsdist) for managing your auth/rec backends by name.