Luanti in docker-compose
I migrated my Luanti Mineclonia world from my desktop to a dedicated server. Thankfully, it is very easy to do that! I love Free Software (free as in libre).
I set it up in docker-compose, and I merely copied my entire .minetest directory to the service account. So it had all my worlds, modes, games, and (the three different categories in the ContentDB for Luanti) already.
Then I set up my service in a docker-compose.yml, and also the venerable mapserver in a separate compose file. Here's what I've got so far.
# File: /home/luanti/game/docker-compose.yml
# Reference:
# https://github.com/linuxserver/docker-luanti
# https://github.com/minetest-mapserver/mapserver/blob/master/docker-compose.yml
# https://github.com/minetest-mapserver/mapserver/blob/master/doc/install.md more useful
---
version: "3.5"
services:
luanti:
image: lscr.io/linuxserver/luanti:latest
container_name: luanti
environment:
- PUID=1009
- PGID=1009
- TZ=Etc/UTC
- "CLI_ARGS=--gameid mineclonia --worldname world1"
volumes:
- /home/luanti/.minetest:/config/.minetest
ports:
- 30000:30000/udp
restart: unless-stopped
...
Yes, I used the linuxserver.io build of a docker image because it came up first in my search. It also took me a while to learn that it configured to use config file .minetest/main-config/minetest.conf. No biggie, once you know about it.
And then my mapserver is separate, so I can bring it up and down while I'm testing.
# Reference:
# https://github.com/minetest-mapserver/mapserver/blob/master/docker-compose.yml
# https://github.com/minetest-mapserver/mapserver/blob/master/doc/install.md more useful
---
version: "3.5"
services:
mapserver:
image: ghcr.io/minetest-mapserver/mapserver
restart: always
networks:
- default
volumes:
- /home/luanti/.minetest/worlds/world1:/minetest
working_dir: "/minetest"
ports:
- 8086:8080/tcp
...
I had to open up the firewall on the docker host (server4).
sudo firewall-cmd --add-port=8086/tcp --permanent sudo firewall-cmd --reload
On my https reverse proxy, for which I still don't have websockets quite right but it is somehow functional enough:
# 2025-03-07-6 08:02 for luanti game mineclonia world world1 RewriteEngine on RewriteRule ^/map-world1$ /map-world1/ [R,L] # not working, but whatever <Location "/map-world1/"> ProxyPreserveHost On ProxyPass http://server4:8086/ retry=20 connectiontimeout=300 timeout=300 upgrade=websocket ProxyPassReverse http://server4:8086/ RequestHeader set X-Script-Name /map-world1 RequestHeader set Upgrade websocket RequestHeader set Connection upgrade </Location>
Once I ran the docker-compose up -d for mapserver, it generated the worlds/world1/mapserver.json which I customized for my needs.
{ "configversion": 1, "port": 8080, "enableprometheus": true, "enablerendering": true, "enablesearch": true, "enableinitialrendering": true, "enabletransparency": false, "enablemediarepository": false, "webdev": false, "webapi": { "enablemapblock": false, "secretkey": "IUEXAMPLELTdht3n" }, "layers": [ { "id": 0, "name": "below1", "from": -8, "to": -7 }, { "id": 1, "name": "below2", "from": -7, "to": -6 }, { "id": 2, "name": "below3", "from": -6, "to": -5 }, { "id": 3, "name": "below4", "from": -5, "to": -4 }, { "id": 4, "name": "below5", "from": -4, "to": -3 }, { "id": 5, "name": "below6", "from": -3, "to": -2 }, { "id": 8, "name": "below7", "from": -2, "to": -1 }, { "id": 6, "name": "Ground", "from": -1, "to": 10 }, { "id": 7, "name": "Sky", "from": 11, "to": 24 } ], "renderingfetchlimit": 500, "renderingjobs": 8, "renderingqueue": 10, "incrementalrenderingtimer": "5s", "mapobjects": { "areas": true, "bones": false, "protector": true, "xpprotector": true, "privprotector": true, "technic_quarry": false, "technic_switch": false, "technic_anchor": false, "technic_reactor": false, "luacontroller": false, "digiterms": false, "digilines": false, "travelnet": false, "mapserver_player": true, "mapserver_poi": true, "mapserver_label": true, "mapserver_trainline": false, "mapserver_border": true, "tileserverlegacy": true, "mission": false, "jumpdrive": false, "smartshop": false, "fancyvend": false, "atm": false, "train": false, "trainsignal": false, "minecart": false, "locator": false, "signs": true, "mapserver_airutils": false, "phonograph": false, "um_area_forsale": false }, "mapblockaccessor": { "expiretime": "10s", "purgetime": "15s", "maxitems": 50 }, "defaultoverlays": [ "mapserver_poi", "mapserver_label", "mapserver_player" ], "skins": { "enableskinsdb": false, "skinspath": "" }, "worldpath": "./", "datapath": "./", "colorstxtpath": "./" }
The initial map tile generation took a while (a few hours?) on my hardware, for a 160MB map.sqlite. It's worth noting that the from and to values in the layers are not node coordinates; they are the mapblock coordinates. You just divide the node coordinates by 16 to get the mapblock coordinates. So in a Mineclonia mapgen v7 world with node Y coord -128 as bedrock, the bottom is just -8. And my colors.txt which shows grass as an ugly brown (for some lame reason) came from my Luanti mapping notes.
I was hoping to investigate adding mod respawn support to mod mapserver but since poi was already supported and is good enough, I didn't bother. I can live with adding crafted blocks in the world for the map to show them.
I haven't yet solved the problem of world backups. I suppose I would want to exclude all the mapserver tile files.
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