Init

.gitignore

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+/app
+GT_New_Horizons_2.4.0_Server_Java_17-20.zip

Dockerfile

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+FROM openjdk:20
+COPY app /app
+ADD https://github.com/GTNewHorizons/Hodgepodge/releases/download/2.2.8/hodgepodge-2.2.8.jar /app/mods/hodgepodge-2.2.31.jar
+COPY prepare_evironment.sh startserver.sh /app/
+RUN mkdir -p /data
+WORKDIR /app
+EXPOSE 25565
+CMD ["/app/startserver.sh"]

compose.yaml

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+services:
+  minecraft:
+    build: .
+    volumes:
+      - data:/data
+    ports:
+      - "25565:25565"
+volumes:
+  data:

download.sh

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+#!/bin/sh
+
+if [ ! -f GT_New_Horizons_2.4.0_Server_Java_17-20.zip ]; then
+    wget https://downloads.gtnewhorizons.com/ServerPacks/GT_New_Horizons_2.4.0_Server_Java_17-20.zip
+fi
+if [ ! -d app ]; then
+mkdir app
+cd app || exit
+unzip ../GT_New_Horizons_2.4.0_Server_Java_17-20.zip
+cd ..
+fi

prepare_environment.sh

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+#!/bin/sh
+
+echo "eula=true" > eula.txt
+
+if [ ! -f /data/.initialized ]; then
+    mkdir -p /data/logs /data/World /data/crash-reports
+    for i in "server.properties" "usercache.json" "whitelist.json" "ops.json" "config"
+    do
+        cp -r $i /data/
+    done
+    sed -i 's/online-mode=true/online-mode=false/' /data/server.properties
+    touch /data/.initialized
+fi
+
+if [ ! -f /app/.initialized ]; then
+    for i in "server.properties" "usercache.json" "whitelist.json" "ops.json" "config"
+    do
+        rm -r $i
+        ln -s /data/$i $i
+    done
+    ln -s /data/logs .
+    ln -s /data/World .
+    ln -s /data/crash-reports .
+
+    touch /app/.initialized
+fi

startserver.sh

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+#!/bin/sh
+/app/prepare_environment.sh && java -Xms6G -Xmx6G -Dfml.readTimeout=180 @java9args.txt nogui