merge: testing → main (reconcile 2-week divergence)

deploy/decnet-reconciler.service.j2

@@ -0,0 +1,47 @@
+[Unit]
+Description=DECNET Fleet Reconciler (converges decnet-state.json ↔ fleet_deckies DB ↔ docker)
+Documentation=https://git.resacachile.cl/anti/DECNET/wiki/Workers#reconciler
+After=network-online.target decnet-bus.service
+Wants=network-online.target decnet-bus.service
+
+[Service]
+Type=simple
+User={{ user }}
+Group={{ group }}
+WorkingDirectory={{ install_dir }}
+EnvironmentFile=-{{ install_dir }}/.env.local
+Environment=DECNET_SYSTEM_LOGS=/var/log/decnet/decnet.reconciler.log
+ExecStart={{ venv_dir }}/bin/decnet reconcile
+StandardOutput=append:/var/log/decnet/decnet.reconciler.log
+StandardError=append:/var/log/decnet/decnet.reconciler.log
+
+# The reconciler queries the docker daemon (via `docker.from_env()`) to
+# observe per-container state.  Membership in the docker group lets it
+# read /var/run/docker.sock without root.  It does NOT exec into
+# containers, bind to the network, or spawn new containers.
+SupplementaryGroups=docker
+
+CapabilityBoundingSet=
+AmbientCapabilities=
+
+# Security Hardening
+NoNewPrivileges=yes
+ProtectSystem=full
+ProtectHome=read-only
+PrivateTmp=yes
+ProtectKernelTunables=yes
+ProtectKernelModules=yes
+ProtectControlGroups=yes
+RestrictSUIDSGID=yes
+LockPersonality=yes
+# Read-only access to /var/lib/decnet so we can read decnet-state.json.
+# Read-write access only to install_dir + log dir.
+ReadOnlyPaths=/var/lib/decnet
+ReadWritePaths={{ install_dir }} /var/log/decnet
+
+Restart=on-failure
+RestartSec=5
+TimeoutStopSec=15
+
+[Install]
+WantedBy=multi-user.target