# This is an example for a systemd service which starts a Minecraft server after system startup, uses a socket to execute commands, and shuts down gracefully.
# This example uses a user named 'minecraft', with the home directory at '/home/minecraft/', and assumes you use a run.sh file to start the server.

cat > /etc/systemd/system/minecraft.service << EOF
[Unit]
Description=A dedicated Minecraft server
After=network.target

[Service]
User=minecraft
Type=simple
KillSignal=SIGCONT
Sockets=minecraft.socket
WorkingDirectory=/home/minecraft/
ExecStart=/bin/sh -c "/home/minecraft/run.sh < /run/minecraft.control"
ExecStop=/bin/sh -c "echo /stop > /run/minecraft.control"
Type=exec
Restart=always

[Install]
WantedBy=multi-user.target
EOF

cat > /etc/systemd/system/minecraft.socket << EOF
[Unit]
BindsTo=minecraft.service

[Socket]
ListenFIFO=/run/minecraft.control
FileDescriptorName=control
RemoveOnStop=true
SocketMode=0660
SocketUser=minecraft
EOF

systemctl enable minecraft.service
systemctl start minecraft.service

# Use: 'journalctl -u minecraft.service' to view the service logs,
# or view the status and other information with: 'systemctl status minecraft.service'.
#
# Send commands to the server with: 'echo "/help" > /run/minecraft.control', replace 'help' with the desired command.