# Basis-Image with Java
FROM openjdk:24-jdk-slim

# Workdirectory
WORKDIR /minecraft

# Install Screen
RUN apt-get update && apt-get install -y screen

# Download Minecraft-Server-JAR (Fabric)
ADD https://meta.fabricmc.net/v2/versions/loader/1.21.1/0.16.9/1.0.1/server/jar minecraft-server.jar

# Accept EULA
RUN echo "eula=true" > eula.txt

# Expose Minecraft port
EXPOSE 25565

# Define memory
ENV MEMORY=2G

# Use shell form for CMD to allow variable expansion
CMD ["sh", "-c", "java -Xmx${MEMORY} -Xms${MEMORY} -jar minecraft-server.jar nogui"]