Network Port Occupied

Just pulled the docker image however when I launch the container I am having an issue with the "network port occupied".

minecraft | time="2019-09-05T09:27:15-04:00" level=debug msg="Using /data to match uid and gid"
minecraft | time="2019-09-05T09:27:15-04:00" level=debug msg="Resolved UID=1000 from match path"
minecraft | time="2019-09-05T09:27:15-04:00" level=debug msg="Resolved GID=1001 from match path"
minecraft | time="2019-09-05T09:27:15-04:00" level=debug msg="failed to read stdin" error=EOF
minecraft | Starting Bedrock server...
minecraft | NO LOG FILE! - setting up server logging...
minecraft | [2019-09-05 09:27:16 INFO] Starting Server
minecraft | [2019-09-05 09:27:16 INFO] Version 1.12.1.1
minecraft | [2019-09-05 09:27:16 INFO] Session ID 38380653-3312-4b55-b975-08139ed45610
minecraft | [2019-09-05 09:27:16 INFO] Level Name: Bedrock level
minecraft | [2019-09-05 09:27:16 INFO] Game mode: 1 Creative
minecraft | [2019-09-05 09:27:16 INFO] Difficulty: 1 EASY
minecraft | [2019-09-05 09:27:18 INFO] IPv4 supported, port: 0
minecraft | [2019-09-05 09:27:18 INFO] IPv6 supported, port: 0
minecraft | [2019-09-05 09:27:18 ERROR] Network port occupied, can't start server.
minecraft | Quit correctly

No source file or test is identified in the issue. Start by reproducing the container launch and checking its Docker port configuration against the Bedrock server's reported port; done means identifying and documenting a configuration or runtime fix that lets the server start without the network-port error.

Written by the indexing model from the issue text.