# spinifex-unit-version: 3
[Unit]
Description=Spinifex Daemon (VM Orchestration)
PartOf=spinifex.target
After=spinifex-nats.service spinifex-viperblock.service openvswitch-switch.service ovn-controller.service openvswitch-ipsec.service
# Wants (not Requires): stay bootable when openvswitch-ipsec is absent
Wants=openvswitch-ipsec.service

[Service]
EnvironmentFile=-/etc/spinifex/telemetry.env
# ZFS root: installer raises SPINIFEX_RESERVED_MEM_GB by the ARC ceiling the admission gate cannot see
EnvironmentFile=-/etc/spinifex/host.env
Type=simple
Slice=spinifex-system.slice
User=spinifex-daemon
Group=spinifex
ExecStart=/usr/local/bin/spx service spinifex start
Restart=on-failure
RestartSec=5
# KillMode=process: guest QEMU survives daemon restart; the new daemon reattaches (DDIL)
KillMode=process
TimeoutStopSec=15
# RG-4: infra tier — reaped only after every guest
OOMScoreAdjust=-500
# Guest QEMU shares this cgroup: the ceiling tracks the slice budget, not daemon overhead
MemoryHigh=75%
MemoryMax=85%
Environment=SPINIFEX_CONFIG_PATH=/etc/spinifex/spinifex.toml
Environment=SPINIFEX_BASE_DIR=/var/lib/spinifex/spinifex/
Environment=SPINIFEX_WAL_DIR=/var/lib/spinifex/spinifex/
# Pin to host tmpfs: QEMU pidfiles/QMP sockets must survive PrivateTmp namespace churn (DDIL)
Environment=XDG_RUNTIME_DIR=/run/spinifex

# RG-9: daemon tier — privileged by necessity (GPU vfio). No CAP_NET_ADMIN here,
# so unlike vpcd it still escalates ip/sysctl and NoNewPrivileges stays omitted.
AmbientCapabilities=CAP_SYS_ADMIN CAP_DAC_OVERRIDE
ProtectSystem=full
PrivateDevices=no
DevicePolicy=closed
DeviceAllow=/dev/kvm rw
DeviceAllow=/dev/net/tun rw
DeviceAllow=/dev/vhost-net rw
DeviceAllow=char-vfio rw
DeviceAllow=/dev/vfio/vfio rw
ReadOnlyPaths=/etc/spinifex/spinifex.toml /etc/spinifex/server.pem /etc/spinifex/server.key /etc/spinifex/ca.pem
# /proc/sys/net/ipv4/conf: ProtectKernelTunables would keep the per-tap IMDS
# rp_filter/accept_local read-only; /etc/spinifex/firewall: the root helper writes peers.nft.
ReadWritePaths=/var/lib/spinifex/spinifex /var/log/spinifex /run/spinifex /run/spinifex/nbd /proc/sys/net/ipv4/conf -/etc/spinifex/firewall

# RG-9: hardening baseline
ProtectHome=yes
PrivateTmp=yes
RestrictSUIDSGID=yes
LockPersonality=yes
RestrictRealtime=yes
RestrictNamespaces=yes
ProtectClock=yes
ProtectKernelTunables=yes
ProtectKernelModules=yes
ProtectKernelLogs=yes
ProtectControlGroups=yes
ProtectProc=invisible
SystemCallArchitectures=native
MemoryDenyWriteExecute=yes
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
ProtectHostname=yes
KeyringMode=private
RemoveIPC=yes
LimitCORE=0
LimitNOFILE=65536
LimitNPROC=4096
# LimitMEMLOCK=infinity: VFIO pins all guest RAM
LimitMEMLOCK=infinity

[Install]
WantedBy=spinifex.target