Systemd service wrapper for PaperMC

papermc.service

[Unit]
Description=PaperMC Server
After=network.target

[Service]
WorkingDirectory=/opt/paper

User=paper
Group=paper

Restart=always

ExecStart=/usr/bin/screen -DmS paper /usr/bin/java -Xms4G -Xmx4G -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar /opt/paper/paperclip.jar nogui

ExecStop=/usr/bin/screen -p 0 -S paper -X stuff "say SERVER SHUTTING DOWN IN 15 SECONDS. SAVING ALL MAPS...\n"
ExecStop=/bin/sleep 5s
ExecStop=/usr/bin/screen -p 0 -S paper -X stuff "save-all\n"
ExecStop=/bin/sleep 10s
ExecStop=/usr/bin/screen -p 0 -s paper -X stuff "say Maps saved, rebooting in 5 seconds...\n"
ExecStop=/bin/sleep 5s
ExecStop=/usr/bin/screen -p 0 -S paper -X stuff "stop\n"


[Install]
WantedBy=multi-user.target