Update Dockerfile

Dockerfile

@@ -9,13 +9,16 @@ EXPOSE 7860
 ENV JAVA_OPTS="-Xmx1024M -Xms1024M"
 ENV EULA=true
 
-# Adjust file permissions to ensure the directory can be written to
-RUN mkdir -p /minecraft/cache && chown -R 1000:1000 /minecraft
-
-# Add a non-root user in a more compatible way and take over ownership
-RUN useradd -r -m -d /minecraft -s /bin/bash minecraft && \
-    chown -R minecraft:minecraft /minecraft
+# Create a new user and adjust permissions accordingly
+# -m creates the user's home directory
+# -d specifies the user's home directory
+# -s specifies the user's shell
+# Using /bin/false to disable shell access for the user
+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 ${JAVA_OPTS} -jar server.jar nogui --port 7860
+CMD if [ "${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