systemctl --machine=hive-gateway requires root (machine-bus transport
enters the container namespace). hive-c0re is unprivileged, so every
call to nginx_active_state() and gateway_systemctl() silently failed
with exit 1, causing a continuous 30s retry loop without ever
syncing nginx.
Fix:
- Move state-aware nginx logic into hive-priv ReloadGatewayNginx:
check ActiveState, then reload/reset-start/start accordingly.
hive-priv already runs as root and has machine-bus rights.
- Remove nginx_active_state() and gateway_systemctl() from
gateway_nginx.rs (they were always running unprivileged, always
failing silently).
- Make write(), reload_if_pending(), reload_gateway_nginx() async so
they can call the async priv_client without a blocking bridge.
- Update callers in agent_sockets::spawn_poll and meta::sync_agents
to await the now-async functions.
The priv_client::reload_gateway_nginx() call and PrivRequest::ReloadGatewayNginx
wire type already existed — the gateway_nginx module was just not using them.
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