Yesterday I wanted to play Terraria again. To have the option for multiplayer later, I wanted to start directly on a dedicated server.
The following script starts the Terraria inside of a Docker Container without the need to create a Docker Image.
The Server binaries and world data are stored just in a folder of the host system. Both will be mounted into a vanilla Debian Buster Image.
docker stop terraria || true
docker rm terraria || true
chmod a+x /opt/docker-terraria/bin/TerrariaServer*
mkdir -p \
/opt/docker-terraria/bin \
/opt/docker-terraria/world
# - Download Dedicated Server from
# http://terraria.org/
# (Link at the bottom of the page)
# - Extract the linux binaries to
# /opt/docker-terraria/bin
docker run -it -d \
--name terraria \
-p 7777:7777 \
-v /opt/docker-terraria/bin:/root/bin/terraria \
-v /opt/docker-terraria/world:/root/.local/share/Terraria \
--workdir /root/bin/terraria \
--entrypoint ./TerrariaServer.bin.x86_64 \
debian:buster-slim \
-players 50 \
-motd "LadL 2022" \
-port 7777 \
-autocreate 3 \
-worldname myworld \
-world /root/.local/share/Terraria/Worlds/myworld.wld
The admin console of the server can be opened with
docker attach terraria. To close the console again,
use the keyboard shortcut CTRL-p, CTRL-q.
When the docker host runs more (maybe critical) stuff,
you may want to limit the ressources of the container
with --memory and --cpus.
