r15ch13
1/11/2015 - 12:17 AM
init.d script for bukkit
init.d script for bukkit
#!/bin/bash
# /etc/init.d/minecraft
# version 0.3.6 2011-10-17 (YYYY-MM-DD)
### BEGIN INIT INFO
# Provides: minecraft
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Minecraft server
# Description: Starts the minecraft server
### END INIT INFO
#Settings
UPDATE_SLUG='beta' #rb beta dev
SERVICE="craftbukkit-$UPDATE_SLUG.jar"
OPTIONS='nogui'
USERNAME='minecraft'
WORLD='world'
MCPATH='/home/minecraft/minecraft'
BACKUPPATH='/home/minecraft/backup'
COMPLETE_BACKUP_EXCLUDE={plugins/dynmap/web/tiles,logs,crash-reports,'*.log'}
#CPU_COUNT=8
#INVOCATION=" /usr/bin/java -Xmx4096M -Xms512M -server -jar $SERVICE $OPTIONS"
INVOCATION=" /usr/bin/java -XX:ParallelGCThreads=8 -Xmx2048M -Xms512M -server -jar $SERVICE $OPTIONS"
#INVOCATION="java -Xmx4096M -Xms512M -server -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=$CPU_COUNT -XX:+AggressiveOpts -jar $SERVICE $OPTIONS"
#INVOCATION="java -Xmx4096M -XX:ParallelGCThreads=8 -server -Xincgc -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+AggressiveOpts -XX:+CMSParallelRemarkEnabled -XX:+DisableExplicitGC -XX:MaxGCPauseMillis=500 -XX:SurvivorRatio=16 -XX:TargetSurvivorRatio=90 -XX:+UseAdaptiveGCBoundary -XX:-UseGCOverheadLimit -Xnoclassgc -XX:UseSSE=3 -XX:PermSize=128m -XX:LargePageSizeInBytes=4m -jar $SERVICE $OPTIONS"
SCREEN='minecraft-bukkit'
ME=`whoami`
as_user() {
if [ $ME == $USERNAME ] ; then
bash -c "$1"
else
su - $USERNAME -c "$1"
fi
}
mc_start() {
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is already running!"
else
echo "Starting $SERVICE..."
cd $MCPATH
as_user "cd $MCPATH && echo > $MCPATH/server.log"
as_user "cd $MCPATH && screen -dmS '$SCREEN' $INVOCATION"
sleep 7
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is now running."
else
echo "Error! Could not start $SERVICE!"
fi
fi
}
mc_saveoff() {
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is running... suspending saves"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"say SERVER BACKUP STARTING. Server going readonly...\"\015'"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"save-off\"\015'"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"save-all\"\015'"
sync
sleep 10
else
echo "$SERVICE is not running. Not suspending saves."
fi
}
mc_saveon() {
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is running... re-enabling saves"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"save-on\"\015'"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"say SERVER BACKUP ENDED. Server going read-write...\"\015'"
else
echo "$SERVICE is not running. Not resuming saves."
fi
}
mc_stop() {
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "Stopping $SERVICE"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"say SERVER SHUTTING DOWN IN 15 SECONDS. Saving map...\"\015'"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"save-all\"\015'"
sleep 15
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"stop\"\015'"
sleep 10
else
echo "$SERVICE was not running."
fi
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "Error! $SERVICE could not be stopped."
else
echo "$SERVICE is stopped."
fi
}
mc_update() {
case "$UPDATE_SLUG" in
rb)
MC_SERVER_URL='http://dl.bukkit.org/latest-rb/craftbukkit.jar'
MC_OUTPUT='craftbukkit-rb.jar'
;;
beta)
MC_SERVER_URL='http://dl.bukkit.org/latest-beta/craftbukkit.jar'
MC_OUTPUT='craftbukkit-beta.jar'
;;
dev)
MC_SERVER_URL='http://dl.bukkit.org/latest-dev/craftbukkit.jar'
MC_OUTPUT='craftbukkit-dev.jar'
;;
*)
MC_SERVER_URL='http://dl.bukkit.org/latest-rb/craftbukkit.jar'
MC_OUTPUT='craftbukkit.jar'
;;
esac
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is running! Will not start update."
else
as_user "cd $MCPATH && wget -q -O $MCPATH/$MC_OUTPUT.update $MC_SERVER_URL"
if [ -f "$MCPATH/$MC_OUTPUT.update" ]
then
if `diff $MCPATH/$MC_OUTPUT $MCPATH/$MC_OUTPUT.update >/dev/null`
then
echo "You are already running the latest version of $MC_OUTPUT."
else
as_user "mv $MCPATH/$MC_OUTPUT.update $MCPATH/$MC_OUTPUT"
echo "Minecraft successfully updated."
fi
else
echo "Minecraft update could not be downloaded."
fi
fi
}
mc_backup() {
echo "Backing up minecraft world..."
if [ -f "$BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`.tar.gz" ]
then
for i in 1 2 3 4 5 6
do
if [ -f "$BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz" ]
then
continue
else
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz ${WORLD}"
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_nether_`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz ${WORLD}_nether"
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_the_end_`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz ${WORLD}_the_end"
break
fi
done
else
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_`date "+%Y.%m.%d_%H.%M"`.tar.gz ${WORLD}"
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_nether_`date "+%Y.%m.%d_%H.%M"`.tar.gz ${WORLD}_nether"
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/${WORLD}_the_end_`date "+%Y.%m.%d_%H.%M"`.tar.gz ${WORLD}_the_end"
echo "Backed up world"
fi
echo "Backing up settings"
as_user "cd $MCPATH && git add ."
as_user "cd $MCPATH && git commit -m 'Backup `date "+%Y.%m.%d_%H.%M"`'"
as_user "cd $MCPATH && git push origin master"
echo "Backing up $SERVICE"
if [ -f "$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d_%H.%M"`.jar" ]
then
for i in 1 2 3 4 5 6
do
if [ -f "$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d_%H.%M"`-$i.jar" ]
then
continue
else
as_user "cd $MCPATH && cp $SERVICE \"$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d_%H.%M"`-$i.jar\""
break
fi
done
else
as_user "cd $MCPATH && cp $SERVICE \"$BACKUPPATH/minecraft_server_`date "+%Y.%m.%d_%H.%M"`.jar\""
fi
echo "Backup complete"
echo "Deleting backups older than 30 days"
find $BACKUPPATH/*.jar -mtime +30 -exec rm {} \;
find $BACKUPPATH/world*.tar.gz -mtime +30 -exec rm {} \;
}
mc_complete_backup() {
echo "Backing up minecraft server..."
if [ -f "$BACKUPPATH/complete-backup/LoVo-Minecraft-`date "+%Y.%m.%d_%H.%M"`.tar.gz" ]
then
for i in 1 2 3 4 5 6
do
if [ -f "$BACKUPPATH/complete-backup/LoVo-Minecraft-`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz" ]
then
continue
else
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/complete-backup/LoVo-Minecraft-`date "+%Y.%m.%d_%H.%M"`-$i.tar.gz --exclude-vcs --exclude=$COMPLETE_BACKUP_EXCLUDE ."
break
fi
done
else
as_user "cd $MCPATH && tar -zcf $BACKUPPATH/complete-backup/LoVo-Minecraft-`date "+%Y.%m.%d_%H.%M"`.tar.gz --exclude-vcs --exclude=$COMPLETE_BACKUP_EXCLUDE ."
echo "Backed up complete minecraft server"
fi
echo "Backup complete"
echo "Deleting backups older than 2 days"
find $BACKUPPATH/complete-backup/*.tar.gz -mtime +2 -exec rm {} \;
}
mc_command() {
command="$1";
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
pre_log_len=`wc -l "$MCPATH/server.log" | awk '{print $1}'`
echo "$SERVICE is running... executing command"
as_user "screen -p 0 -S '$SCREEN' -X eval 'stuff \"$command\"\015'"
sleep .1 # assumes that the command will run and print to the log file in less than .1 seconds
# print output
tail -n $[`wc -l "$MCPATH/server.log" | awk '{print $1}'`-$pre_log_len] "$MCPATH/server.log"
fi
}
#Start-Stop here
case "$1" in
start)
mc_start
;;
stop)
mc_stop
;;
restart)
mc_stop
mc_start
;;
update)
mc_stop
mc_backup
mc_update
mc_start
;;
backup)
mc_saveoff
mc_backup
mc_saveon
;;
complete-backup)
mc_stop
mc_complete_backup
mc_start
;;
status)
if pgrep -u $USERNAME -f $SERVICE > /dev/null
then
echo "$SERVICE is running."
else
echo "$SERVICE is not running."
fi
;;
command)
if [ $# -gt 1 ]; then
shift
mc_command "$*"
else
echo "Must specify server command (try 'help'?)"
fi
;;
*)
echo "Usage: /etc/init.d/minecraft {start|stop|update|backup|complete-backup|status|restart|command \"server command\"}"
exit 1
;;
esac
exit 0