[Unit]
Description=DECNET Swarm Controller (master)
Documentation=https://git.resacachile.cl/anti/DECNET/wiki/SWARM-Mode
After=network-online.target decnet-api.service
Wants=network-online.target

[Service]
Type=simple
User={{ user }}
Group={{ group }}
WorkingDirectory={{ install_dir }}
EnvironmentFile=-{{ install_dir }}/.env.local
# Bind/port resolved from /etc/decnet/decnet.ini ([swarm] swarmctl-host /
# swarmctl-port) — falls back to 127.0.0.1:8770 when the keys are absent.
# Pass --host/--port on the ExecStart line only if you want to pin them
# regardless of what the INI says.
Environment=DECNET_SYSTEM_LOGS=/var/log/decnet/decnet.swarmctl.log
ExecStart={{ venv_dir }}/bin/decnet swarmctl
StandardOutput=append:/var/log/decnet/decnet.swarmctl.log
StandardError=append:/var/log/decnet/decnet.swarmctl.log

# No special capabilities — the controller issues mTLS certs and talks to
# workers over TCP on unprivileged ports.
CapabilityBoundingSet=
AmbientCapabilities=

# Security Hardening
NoNewPrivileges=yes
ProtectSystem=full
ProtectHome=read-only
PrivateTmp=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
ProtectControlGroups=yes
RestrictSUIDSGID=yes
LockPersonality=yes
# Reads/writes the CA bundle and the master DB.
ReadWritePaths={{ install_dir }} /var/log/decnet
ReadOnlyPaths=/etc/decnet

Restart=on-failure
RestartSec=5

[Install]
WantedBy=multi-user.target