add minecraft howto

content/games/flappy_witch.md

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----
-title: "Flappy Witch"
-menu:
-  main:
-    parent: Games
----
-
-[Play latest version](/games/flappy_witch/flappy_witch.html)
-
-### screenshots
-![screenshot01](/games/flappy_witch/flappy_witch_play.png#left)
-![screenshot02](/games/flappy_witch/flappy_witch_lost.png#right)
-

content/games/klick-the-witch.md

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----
-title: "Klick the Witch"
-menu:
-  main:
-    parent: Games
----
-
-[Play latest version](/games/klick-the-witch/witch.html)
-
-### screenshots
-![screenshot01](/games/klick-the-witch/screenshot01.png#center)
-![screenshot02](/games/klick-the-witch/screenshot02.png#center)

content/games/minecraft.md

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+---
+title: 'Setup Minecraft Server'
+menu:
+  main:
+    parent: Games    
+---
+
+Setup Minecraft Java Server PaperMC on Arch Linux based lxc container
+
+## Install PaperMC
+
+### setup environment
+```
+pacman -S jre-openjdk-headless
+mkdir -p /opt/minecraft/{papermc,latest,plugins}
+mkdir -p /opt/minecraft/latest/plugins
+useradd -d /opt/minecraft -M -r -U minecraft -s /bin/sh
+chown -Rvf minecraft:minecraft /opt/minecraft
+```
+
+### download PaperMC
+download latest version from https://papermc.io/downloads/paper
+
+```
+cd /opt/minecraft/papermc
+wget https://api.papermc.io/v2/projects/paper/versions/1.20.4/builds/386/downloads/paper-1.20.4-386.jar
+ln -sf /opt/minecraft/papermc/paper-1.20.4-386.jar /opt/minecraft/latest/server.jar
+```
+
+### server.properties
+
+```
+cat > /opt/minecraft/latest/server.properties << EOF
+enable-jmx-monitoring=false
+rcon.port=25575
+level-seed=
+gamemode=survival
+enable-command-block=true
+enable-query=false
+generator-settings={}
+enforce-secure-profile=false
+level-name=world
+motd=myPrivate Minecraft Server
+query.port=25565
+pvp=true
+generate-structures=true
+max-chained-neighbor-updates=1000000
+difficulty=easy
+network-compression-threshold=512
+max-tick-time=60000
+require-resource-pack=false
+use-native-transport=true
+max-players=6
+online-mode=true
+enable-status=true
+allow-flight=false
+initial-disabled-packs=
+broadcast-rcon-to-ops=true
+view-distance=6
+server-ip=
+resource-pack-prompt=
+allow-nether=true
+server-port=25565
+enable-rcon=true
+sync-chunk-writes=true
+resource-pack-id=
+op-permission-level=4
+prevent-proxy-connections=false
+hide-online-players=false
+resource-pack=
+entity-broadcast-range-percentage=100
+simulation-distance=10
+rcon.password=30092008Alexander
+player-idle-timeout=0
+debug=false
+force-gamemode=false
+rate-limit=0
+hardcore=false
+white-list=true
+broadcast-console-to-ops=true
+spawn-npcs=true
+spawn-animals=true
+log-ips=true
+function-permission-level=2
+initial-enabled-packs=vanilla
+level-type=default
+text-filtering-config=
+spawn-monsters=true
+enforce-whitelist=true
+spawn-protection=16
+resource-pack-sha1=
+max-world-size=29999984
+EOF
+```
+
+### install whitelist.json
+Remember to prepend minecraft bedrock (see Geyser plugin below) usernames with `.`
+
+```
+cat > /opt/minecraft/latest/whitelist.json << EOF
+[
+  {
+    "uuid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
+    "name": "myJavaUser"
+  },
+  {
+    "uuid": "00000000-0000-0000-xxxx-xxxxxxxxxxxx",
+    "name": ".myBedrockUser"
+  }
+]
+EOF
+```
+
+### install ops.json
+
+```
+cat > /opt/minecraft/latest/ops.json << EOF
+[
+  {
+    "uuid": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
+    "name": "myJavaUser",
+    "level": 4,
+    "bypassesPlayerLimit": true
+  }
+]
+EOF
+```
+
+### accept End User License Agreement (EULA)
+
+```
+cat > /opt/minecraft/latest/eula.txt << EOF
+eula=true
+EOF
+```
+
+
+## Install additional Plugins
+
+### ServerTap - Management API
+Docs here: https://servertap.io/
+Latest version here: https://github.com/servertap-io/servertap/releases/latest
+
+```
+wget https://github.com/servertap-io/servertap/releases/download/v0.6.1/ServerTap-0.6.1.jar -O /opt/minecraft/plugins/ServerTap-0.6.1.jar
+ln -sf /opt/minecraft/plugins/ServerTap-0.6.1.jar /opt/minecraft/latest/plugins/ServerTap.jar
+```
+
+```
+mkdir -p /opt/minecraft/latest/plugins/ServerTap/
+chown minecraft:minecraft /opt/minecraft/latest/plugins/ServerTap/
+
+cat > /opt/minecraft/latest/plugins/ServerTap/config.yml << EOF
+port: 4567
+debug: false
+useKeyAuth: true
+key: 'OuguiJ5ahd7Eejae'
+normalizeMessages: true
+
+tls:
+  enabled: false
+
+corsOrigins:
+  - "*"
+
+websocketConsoleBuffer: 1000
+disable-swagger: true
+EOF
+```
+
+### Geyser + Floodgate - Minecraft Bedrock
+Play Minecraft with Bedrock and Java clients
+
+Docs here: https://geysermc.org
+Latest version here: https://geysermc.org/download
+
+```
+wget https://download.geysermc.org/v2/projects/geyser/versions/latest/builds/latest/downloads/spigot -O /opt/minecraft/plugins/Geyser_build412.jar
+ln -sf /opt/minecraft/plugins/Geyser_build412.jar /opt/minecraft/latest/plugins/Geyser.jar
+
+wget https://download.geysermc.org/v2/projects/floodgate/versions/latest/builds/latest/downloads/spigot -O /opt/minecraft/plugins/Floodgate_build87.jar
+ln -sf /opt/minecraft/plugins/Floodgate_build87.jar /opt/minecraft/latest/plugins/Floodgate.jar
+```
+
+### Multiverse Core - create multiple worlds
+
+```
+wget https://dev.bukkit.org/projects/multiverse-core/files/4744018/download -O /opt/minecraft/plugins/Multiverse-Core_4.3.12.jar
+ln -sf /opt/minecraft/plugins/Multiverse-Core_4.3.12.jar /opt/minecraft/latest/plugins/Multiverse-Core.jar
+```
+
+### Terra World Generator
+Docs and latest version can be found here: https://modrinth.com/plugin/terra
+Download Bukkit version for usage with PaperMC.
+
+```
+wget https://cdn.modrinth.com/data/FIlZB9L0/versions/lBGwt5NT/Terra-bukkit-6.4.3-BETA%2Bab60f14ff-shaded.jar -O /opt/minecraft/plugins/Terra-bukkit-6.4.3-shaded.jar 
+ln -sf /opt/minecraft/plugins/Terra-bukkit-6.4.3-shaded.jar /opt/minecraft/latest/plugins/Terra.jar
+```
+
+## Systemd Service
+
+### install service file
+```
+cat > /etc/systemd/system/minecraft.service << EOF
+[Unit]
+Description=Minecraft Server
+After=syslog.target network.target
+
+[Service]
+SuccessExitStatus=143
+User=minecraft
+Group=minecraft
+Type=simple
+WorkingDirectory=/opt/minecraft/latest
+ExecStart=/usr/bin/java -Xmx4G -Xms4G -jar server.jar --nogui
+ExecStop=/bin/kill -15 $MAINPID
+
+[Install]
+WantedBy=multi-user.target
+EOF
+```
+
+### start service
+```
+systemctl start minecraft.service
+```
+
+### enable service
+```
+systemctl enable minecraft.service
+```
+
+## setup LXD portforwardings
+Configure portforwarding for your minecraft clients to connect to the server. Update external ports (listen=...) as appropriate.
+
+### java clients
+```
+lxc config device add minecraft-server tcp25565_4 proxy connect=tcp:10.0.0.57:25565 listen=tcp:[0.0.0.0]:25565 nat=true proxy_protocol=false
+lxc config device add minecraft-server tcp25565_6 proxy connect=tcp:[fd00::57:1]:25565 listen=tcp:[::]:25565 nat=true proxy_protocol=false
+```
+
+### bedrock clients (geyser plugin neccessary)
+```
+lxc config device add minecraft-server udp19132_4 proxy connect=udp:10.0.0.57:19132 listen=udp:[0.0.0.0]:19132 nat=true proxy_protocol=false
+lxc config device add minecraft-server udp19132_6 proxy connect=udp:[fd00::57:1]:19132 listen=udp:[::]:19132 nat=true proxy_protocol=false
+```
+

content/games/polizei.md

@@ -1,12 +0,0 @@
----
-title: "Polizei"
-menu:
-  main:
-    parent: Games
----
-
-[Play latest version](/games/polizei/polizei.html)
-
-## screenshots
-![screenshot01](/games/polizei/screenshot01.png#center)
-![screenshot02](/games/polizei/screenshot02.png#center)