Initial framework

script/alivecheck.sh

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+#!/bin/sh
+
+# The following script is a failsafe for killing the Minecraft server if it happens
+# to be stuck
+
+set -x
+
+while true; do
+	sleep 420
+
+	# If server doesn't respond to ping, or if the log file is older than
+	# 3 minutes, kill the server
+
+	if [ "$(env printf '\xFE' | nc -w 15 new.kaboom.pw 25565 | wc -m)" -eq 0 ]; then
+		pkill -9 java
+		kill -9 $(ps -C ssh -o pid=)
+		echo $(date) >> ~/kill.log
+	fi
+done

script/init.sh

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+#!/bin/sh
+
+# This is the core script used when booting up the server
+# It asumes that the "framework" folder is located in the home directory
+
+# Run scripts for starting the Minecraft server and schematic
+# checker in the background
+
+while true; do
+	dtach -n kaboom ~/framework/script/server.sh > /dev/null 2>&1
+	dtach -n schematics ~/framework/script/schematics.sh > /dev/null 2>&1
+	sleep 5
+done &

script/reset.sh

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+#!/bin/sh
+
+# The following script is used when resetting the server
+# Currently every 24 h
+
+~/framework/script/stop.sh
+
+rm -rf ~/server/*
+cp -Tr ~/server-default/ ~/server/

script/schematics.sh

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+#!/bin/sh
+
+# Schematics are saved in a separate git repository.
+# Only non-existing files are added to the repository.
+
+set -x
+
+git clone git@github.com:kaboomserver/schematics.git ~/server/plugins/FastAsyncWorldEdit/schematics/
+
+while true; do
+	cd ~/server/plugins/FastAsyncWorldEdit/schematics/
+	if [ "$(git add $(git ls-files -o) -v)" ]; then
+		git -c user.name='kaboom' -c user.email='kaboom.pw' commit -m "Add new schematics"
+		git push
+	fi
+	sleep 1
+done

script/server.sh

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+#!/bin/sh
+
+# The alive checker and Minecraft server is started at the same time. For performance reasons, the
+# OpenJ9 JVM is used instead of Java's default Hotspot JVM.
+
+PATH="$HOME/framework/vendor/java/bin/:$PATH"
+
+dtach -n alivecheck $HOME/framework/script/alivecheck.sh
+
+# Make sure we're in the server folder, located in the home directory
+cd ~/server/
+
+# Make certain files and folders read-only
+
+chmod -R 500 plugins/bStats/
+chmod -R 500 plugins/PluginMetrics/
+chmod -R 500 plugins/ProtocolLib/
+chmod 400 bukkit.yml
+chmod 400 commands.yml
+chmod 400 eula.txt
+chmod 400 permissions.yml
+chmod 400 server-icon.png
+chmod 400 wepif.yml
+
+while true; do
+	java -Xmx1920M -Xtune:virtualized -Xaggressive -Xcompressedrefs -Xdump:heap+java+snap:none -Xdump:tool:events=throw+systhrow,filter=java/lang/OutOfMemoryError,exec="kill -9 %pid" -Xgc:concurrentScavenge -Xgc:dnssExpectedTimeRatioMaximum=3 -Xgc:scvNoAdaptiveTenure -Xdisableexplicitgc -Xshareclasses -Xshareclasses:noPersistentDiskSpaceCheck -XX:MaxDirectMemorySize=128M -XX:+ClassRelationshipVerifier -XX:+UseContainerSupport -DPaper.IgnoreJavaVersion=true -Dpaper.playerconnection.keepalive=360 -DIReallyKnowWhatIAmDoingISwear -jar server.jar
+	sleep 1
+done

script/stop.sh

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+#!/bin/sh
+
+# Shutdown script for Paper/Spigot
+
+pkill -9 java