Adds a new "private" service mode for the reverse proxy: services reachable exclusively over the embedded WireGuard tunnel, gated by per-peer group membership instead of operator auth schemes.
Wire contract
- ProxyMapping.private (field 13): the proxy MUST call ValidateTunnelPeer and fail closed; operator schemes are bypassed.
- ProxyCapabilities.private (4) + supports_private_service (5): capability gate. Management never streams private mappings to proxies that don't claim the capability; the broadcast path applies the same filter via filterMappingsForProxy.
- ValidateTunnelPeer RPC: resolves an inbound tunnel IP to a peer, checks the peer's groups against service.AccessGroups, and mints a session JWT on success. checkPeerGroupAccess fails closed when a private service has empty AccessGroups.
- ValidateSession/ValidateTunnelPeer responses now carry peer_group_ids + peer_group_names so the proxy can authorise policy-aware middlewares without an extra management round-trip.
- ProxyInboundListener + SendStatusUpdate.inbound_listener: per-account inbound listener state surfaced to dashboards.
- PathTargetOptions.direct_upstream (11): bypass the embedded NetBird client and dial the target via the proxy host's network stack for upstreams reachable without WireGuard.
Data model
- Service.Private (bool) + Service.AccessGroups ([]string, JSON- serialised). Validate() rejects bearer auth on private services. Copy() deep-copies AccessGroups. pgx getServices loads the columns.
- DomainConfig.Private threaded into the proxy auth middleware. Request handler routes private services through forwardWithTunnelPeer and returns 403 on validation failure.
- Account-level SynthesizePrivateServiceZones (synthetic DNS) and injectPrivateServicePolicies (synthetic ACL) gate on len(svc.AccessGroups) > 0.
Proxy
- /netbird proxy --private (embedded mode) flag; Config.Private in proxy/lifecycle.go.
- Per-account inbound listener (proxy/inbound.go) binding HTTP/HTTPS on the embedded NetBird client's WireGuard tunnel netstack.
- proxy/internal/auth/tunnel_cache: ValidateTunnelPeer response cache with single-flight de-duplication and per-account eviction.
- Local peerstore short-circuit: when the inbound IP isn't in the account roster, deny fast without an RPC.
- proxy/server.go reports SupportsPrivateService=true and redacts the full ProxyMapping JSON from info logs (auth_token + header-auth hashed values now only at debug level).
Identity forwarding
- ValidateSessionJWT returns user_id, email, method, groups, group_names. sessionkey.Claims carries Email + Groups + GroupNames so the proxy can stamp identity onto upstream requests without an extra management round-trip on every cookie-bearing request.
- CapturedData carries userEmail / userGroups / userGroupNames; the proxy stamps X-NetBird-User and X-NetBird-Groups on r.Out from the authenticated identity (strips client-supplied values first to prevent spoofing).
- AccessLog.UserGroups: access-log enrichment captures the user's group memberships at write time so the dashboard can render group context without reverse-resolving stale memberships.
OpenAPI/dashboard surface
- ReverseProxyService gains private + access_groups; ReverseProxyCluster gains private + supports_private. ReverseProxyTarget target_type enum gains "cluster". ServiceTargetOptions gains direct_upstream. ProxyAccessLog gains user_groups.
* [management] Add metrics for peer status updates and ephemeral cleanup
The session-fenced MarkPeerConnected / MarkPeerDisconnected path and
the ephemeral peer cleanup loop both run silently today: when fencing
rejects a stale stream, when a cleanup tick deletes peers, or when a
batch delete fails, we have no operational signal beyond log lines.
Add OpenTelemetry counters and a histogram so the same SLO-style
dashboards that already exist for the network-map controller can cover
peer connect/disconnect and ephemeral cleanup too.
All new attributes are bounded enums: operation in {connect,disconnect}
and outcome in {applied,stale,error,peer_not_found}. No account, peer,
or user ID is ever written as a metric label — total cardinality is
fixed at compile time (8 counter series, 2 histogram series, 4 unlabeled
ephemeral series).
Metric methods are nil-receiver safe so test composition that doesn't
wire telemetry (the bulk of the existing tests) works unchanged. The
ephemeral manager exposes a SetMetrics setter rather than taking the
collector through its constructor, keeping the constructor signature
stable across all test call sites.
* [management] Add OpenTelemetry metrics for ephemeral peer cleanup
Introduce counters for tracking ephemeral peer cleanup, including peers pending deletion, cleanup runs, successful deletions, and failed batches. Metrics are nil-receiver safe to ensure compatibility with test setups without telemetry.
* [management] Fence peer status updates with a session token
The connect/disconnect path used a best-effort LastSeen-after-streamStart
comparison to decide whether a status update should land. Under contention
— a re-sync arriving while the previous stream's disconnect was still in
flight, or two management replicas seeing the same peer at once — the
check was a read-then-decide-then-write window: any UPDATE in between
caused the wrong row to be written. The Go-side time.Now() that fed the
comparison also drifted under lock contention, since it was captured
seconds before the write actually committed.
Replace it with an integer-nanosecond fencing token stored alongside the
status. Every gRPC sync stream uses its open time (UnixNano) as its token.
Connects only land when the incoming token is strictly greater than the
stored one; disconnects only land when the incoming token equals the
stored one (i.e. we're the stream that owns the current session). Both
are single optimistic-locked UPDATEs — no read-then-write, no transaction
wrapper.
LastSeen is now written by the database itself (CURRENT_TIMESTAMP). The
caller never supplies it, so the value always reflects the real moment
of the UPDATE rather than the moment the caller queued the work — which
was already off by minutes under heavy lock contention.
Side effects (geo lookup, peer-login-expiration scheduling, network-map
fan-out) are explicitly documented as running after the fence UPDATE
commits, never inside it. Geo also skips the update when realIP equals
the stored ConnectionIP, dropping a redundant SavePeerLocation call on
same-IP reconnects.
Tests cover the three semantic cases (matched disconnect lands, stale
disconnect dropped, stale connect dropped) plus a 16-goroutine race test
that asserts the highest token always wins.
* [management] Add SessionStartedAt to peer status updates
Stored `SessionStartedAt` for fencing token propagation across goroutines and updated database queries/functions to handle the new field. Removed outdated geolocation handling logic and adjusted tests for concurrency safety.
* Rename `peer_status_required_approval` to `peer_status_requires_approval` in SQL store fields
makes the DNS forwarder port configurable in the management and client components, while changing the well-known port from 5454 to 22054. The change includes version-aware port assignment to ensure backward compatibility.
- Adds a configurable `ForwarderPort` field to the DNS configuration protocol
- Implements version-based port computation that returns the new port (22054) only when all peers support version 0.59.0 or newer
- Updates the client to dynamically restart the DNS forwarder when the port changes
This PR adds user approval functionality to the management system, allowing administrators to manually approve new users joining via domain matching. When enabled, users are blocked with pending approval status until explicitly approved by an admin.
Adds UserApprovalRequired setting to control manual user approval requirement
Introduces user approval and rejection endpoints with corresponding business logic
Prevents pending approval users from adding peers or logging in
