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[Unit]
Description=Minecraft Server: %i
After=network.target

[Service]
Type=simple
WorkingDirectory=/srv/minecraft/instances/%i

Environment="ServerArgs="
Environment="ServerName=minecraft_server.jar"
Environment="USER=minecraft"
Environment="GROUP=minecraft"

EnvironmentFile=/etc/systemd/minecraft/%i.conf
Restart=always

ExecStart=/usr/bin/screen -Dm -S mc-%i /usr/bin/java ${ServerArgs} -jar ${ServerName}.jar nogui

ExecStop=/usr/bin/screen -p 0 -S mc-%i -X eval 'stuff "say SERVER SHUTTING DOWN IN 15 SECONDS..."\015'
ExecStop=/bin/sleep 5
ExecStop=/usr/bin/screen -p 0 -S mc-%i -X eval 'stuff "say SERVER SHUTTING DOWN IN 10 SECONDS..."\015'
ExecStop=/bin/sleep 5
ExecStop=/usr/bin/screen -p 0 -S mc-%i -X eval 'stuff "say SERVER SHUTTING DOWN IN 5 SECONDS..."\015'
ExecStop=/bin/sleep 5
ExecStop=/usr/bin/screen -p 0 -S mc-%i -X eval 'stuff "save-all"\015'
ExecStop=/usr/bin/screen -p 0 -S mc-%i -X eval 'stuff "stop"\015'

[Install]
WantedBy=multi-user.target