update docs & organization for release v0.1.0

scripts/start-server.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# initialize required files for an empty volume
+# server.jar
+if ! test -f /minecraft_data/server.jar; then
+    if [ -z "$SERVER_JAR_DOWNLOAD_URL" ]; then
+        echo "ERROR: SERVER_JAR_DOWNLOAD_URL not set for initial volume creation"
+        exit 1
+    fi
+    wget -O /minecraft_data/server.jar "${SERVER_JAR_DOWNLOAD_URL}"
+fi
+
+# server.properties
+if ! test -f /minecraft_data/server.properties; then
+    if [ -z "$MCRCON_PASS" ]; then
+        echo "ERROR: MCRCON_PASS not set for initial volume creation"
+        exit 1
+    fi
+    cat /defaults/server.properties | sed "s/<password_will_auto_populate>/${MCRCON_PASS}/" | tee /minecraft_data/server.properties
+fi
+
+# eula.txt
+if ! test -f /minecraft_data/eula.txt; then
+    cp /defaults/eula.txt /minecraft_data/eula.txt
+fi
+
+export MCRCON_PASS=$(grep "^rcon.password=" /minecraft_data/server.properties | cut -d '=' -f 2- | head -n 1)
+
+# shutdown process
+function shutdown {
+    echo "stopping Minecraft server..."
+    /usr/bin/mc-rcon/mcrcon -p ${MCRCON_PASS} -w 5 "say Server is restarting!" save-all stop
+    wait $SERVER_PID
+}
+
+trap shutdown SIGTERM SIGINT
+
+java -jar /minecraft_data/server.jar --nogui & 
+SERVER_PID=$!
+
+wait $SERVER_PID
+