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

[Service]
WorkingDirectory=/var/minecraft/instances/%i

User=minecraft
Group=minecraft

Restart=no

ExecStart=/usr/bin/screen -DmS minecraft-%i ./start_server.sh

ExecStop=/usr/bin/screen -p 0 -S minecraft-%i -X eval 'stuff "save-all"\015'
ExecStop=/usr/bin/screen -p 0 -S minecraft-%i -X eval 'stuff "stop"\015'

[Install]
WantedBy=multi-user.target