Update Dockerfile

Dockerfile

@@ -2,18 +2,21 @@ FROM openjdk:21
 
 WORKDIR /minecraft
 
+# Copy the Minecraft server JAR
 COPY server.jar /minecraft
 
+# Exposing the Minecraft server port
 EXPOSE 7860
 
+# Setting the JVM options
 ENV JAVA_OPTS="-Xmx1024M -Xms1024M"
-ENV EULA=true
 
-RUN useradd -m -d /minecraft -s /bin/false minecraft && chown -R minecraft:minecraft /minecraft
+# Automatically agree to the EULA. Note: Make sure you have
+# actually read and agree to the EULA at https://account.mojang.com/documents/minecraft_eula
+RUN echo "eula=true" > /minecraft/eula.txt
 
+# Create a user as running as root is not advisable
+RUN useradd -m -d /minecraft -s /bin/false minecraft && chown -R minecraft:minecraft /minecraft
 USER minecraft
 
-CMD if [ "${EULA}" != "true" ]; then \
-    echo "You must accept the Minecraft EULA by setting the EULA env variable to TRUE."; exit 1; \
-    fi && \
-    java ${JAVA_OPTS} -jar server.jar --nogui --port 7860
+CMD java ${JAVA_OPTS} -jar server.jar --nogui --port 7860