minecraft@.service v2

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

[Service]
WorkingDirectory=/opt/minecraft/mc_servers/%i

# Solves the issue where the minecraft server will endlessly restart itself
# See https://askubuntu.com/questions/953920/systemctl-service-timed-out-during-start for more info
Type=simple

PrivateUsers=true
# Users Database is not available from within the unit, only root and minecraft is available, everybody else is nobody

User=minecraft
Group=minecraft

ProtectSystem=full
# Read only mapping of /usr /boot and /etc

ProtectHome=true
# /home, /root and /run/user seem to be empty from within the unit. It is recommended to enable this setting for all long-running services (in particular network-facing ones).

ProtectKernelTunables=true
# /proc/sys, /sys, /proc/sysrq-trigger, /proc/latency_stats, /proc/acpi, /proc/timer_stats, /proc/fs and /proc/irq will be read-only within the unit. It is recommended to turn this on for most services.
# Implies MountFlags=slave

ProtectKernelModules=true
# Block module system calls, also /usr/lib/modules. It is recommended to turn this on for most services that do not need special file systems or extra kernel modules to work
# Implies NoNewPrivileges=yes

ProtectControlGroups=true
# It is hence recommended to turn this on for most services.
# Implies MountAPIVFS=yes

# Set default memory values
#Environment="MCMINMEM=512M" "MCMAXMEM=1024M"
#Enviroment="SHUTDOWN_DELAY=5" "POST_SHUTDOWN_DELAY=10"
# Change memory values in environment file
#EnvironmentFile=-/opt/minecraft/%i/server.conf

# Uncomment this to fix screen on RHEL 8
#ExecStartPre=+/bin/sh -c 'chmod 777 /run/screen'

#ExecStart=/bin/sh -c '/opt/minecraft/mc_servers/server_controll/start_server %i'

#ExecStop=/opt/minecraft/mc_servers/server_controll/stop_server %i

Restart=on-failure
RestartSec=60s

[Install]
WantedBy=multi-user.target