systemd unit builder — free browser tool | fatcousin

guided .service file builder · no googling the syntax · runs locally

[unit] — metadata

Description *Documentationman page URI or https:// URLAfterstart after these unitsWantssoft dependenciesRequireshard dependencies (fail if missing)PartOfstop/restart when parent does

[service] — process

TypeRestartRestartSec (seconds)TimeoutStartSecTimeoutStopSecKillMode

[service] — commands

ExecStartPrecommand to run before start (optional)ExecStart *ExecStartPostrun after start (optional)ExecStopcustom stop command (optional — default: SIGTERM)ExecReloadreload command (optional)WorkingDirectory

[service] — identity

UserGroup

[service] — environment

Environment variablesKEY=VALUE one per lineEnvironmentFilepath to file with KEY=VALUE pairs

[service] — logging & security

StandardOutputStandardError

PrivateTmp (private /tmp namespace)NoNewPrivileges (prevent privilege escalation)ProtectSystem=full (read-only /usr, /boot, /etc)

ReadWritePathsspace-separated paths the service can write to (when ProtectSystem is on)

[install]

WantedByRequiredBy

generated .service file

[Unit]
Description=My Application Service
After=network.target

[Service]
Type=exec
User=myapp
Group=myapp
WorkingDirectory=/opt/myapp
ExecStart=/usr/bin/myapp --config /etc/myapp/config.yaml
StandardOutput=journal
Restart=on-failure
RestartSec=5s
TimeoutStartSec=30s
TimeoutStopSec=30s
KillMode=control-group
PrivateTmp=yes
NoNewPrivileges=yes

[Install]
WantedBy=multi-user.target

sudo cp myapp.service /etc/systemd/system/ && sudo systemctl daemon-reload && sudo systemctl enable --now myapp