import net from 'net'; import path from 'path'; import fs from 'fs/promises'; import { EventEmitter } from 'events'; import * as YAML from 'yaml'; import { ComposeService } from './ComposeService'; import { DatabaseService } from './DatabaseService'; import DockerController from './DockerController'; import { FileSystemService } from './FileSystemService'; import { LicenseService } from './LicenseService'; import { PROXY_TIER_HEADER, PROXY_VARIANT_HEADER } from './license-headers'; import { MeshForwarder, type MeshForwarderHost } from './MeshForwarder'; import { NodeRegistry } from './NodeRegistry'; import { PilotTunnelManager } from './PilotTunnelManager'; import { MeshProxyTunnelDialer, type DialFailureCode } from './MeshProxyTunnelDialer'; import { generateOverrideYaml, MeshAlias, SENCHO_MESH_NETWORK } from './MeshComposeOverride'; import { lookupContainerIp } from '../mesh/containerLookup'; import { sanitizeForLog } from '../utils/safeLog'; import { isPathWithinBase, isValidStackName } from '../utils/validation'; import { PORT as SENCHO_LISTEN_PORT } from '../helpers/constants'; import { assertPolicyGateAllows, buildSystemPolicyGateOptions } from '../helpers/policyGate'; const ACTIVITY_BUFFER_SIZE = 1000; const ALIAS_REFRESH_INTERVAL_MS = 60_000; const PROBE_TIMEOUT_MS = 5_000; const SLOW_PROBE_THRESHOLD_MS = 500; const DEFAULT_MESH_SUBNET = '172.30.0.0/24'; const REACHABLE_REASON: Record = { auth_failed: 'api token rejected by remote', endpoint_not_found: 'remote does not support proxy mesh', tls_failed: 'TLS handshake failed', no_target: 'proxy target missing', network_error: 'remote unreachable', }; /** * Returns the static IPv4 address Sencho will pin itself to on the mesh * Docker network: ` + 2`. The Docker daemon assigns * ` + 1` to the bridge gateway, so `+2` is the first usable host * address. For the default `172.30.0.0/24` this is `172.30.0.2`. Throws * on invalid CIDR or a prefix too narrow to host two addresses. */ export function getSenchoIpFromSubnet(subnet: string): string { const cidr = subnet.trim().match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)\/(\d+)$/); if (!cidr) throw new Error(`Invalid mesh subnet CIDR: ${subnet}`); const octets = [Number(cidr[1]), Number(cidr[2]), Number(cidr[3]), Number(cidr[4])]; const prefix = Number(cidr[5]); if (octets.some((o) => o < 0 || o > 255) || prefix < 8 || prefix > 30) { throw new Error(`Invalid mesh subnet CIDR: ${subnet}`); } const ipInt = (octets[0] << 24) | (octets[1] << 16) | (octets[2] << 8) | octets[3]; const mask = prefix === 0 ? 0 : (0xffffffff << (32 - prefix)) >>> 0; const network = (ipInt & mask) >>> 0; const sencho = (network + 2) >>> 0; return [ (sencho >>> 24) & 0xff, (sencho >>> 16) & 0xff, (sencho >>> 8) & 0xff, sencho & 0xff, ].join('.'); } export type MeshActivitySource = 'pilot' | 'mesh'; export type MeshActivityLevel = 'info' | 'warn' | 'error'; export type MeshActivityType = | 'route.dispatch' | 'route.resolve.ok' | 'route.resolve.denied' | 'route.resolve.fail' | 'tunnel.open' | 'tunnel.fail' | 'tunnel.backpressure' | 'opt_in' | 'opt_out' | 'mesh.enable' | 'mesh.disable' | 'mesh.override.preserved' | 'probe.ok' | 'probe.fail' | 'forwarder.listen' | 'forwarder.unlisten' | 'forwarder.error' | 'proxy-tunnel.open.ok' | 'proxy-tunnel.open.fail' | 'proxy-tunnel.close' | 'mesh.proxy_tunnel.identify' | 'mesh_handshake.received'; export interface MeshActivityEvent { ts: number; source: MeshActivitySource; level: MeshActivityLevel; type: MeshActivityType; nodeId?: number; alias?: string; streamId?: number; message: string; details?: Record; } export interface MeshGlobalAlias { /** `...sencho` */ host: string; nodeId: number; nodeName: string; stackName: string; serviceName: string; port: number; } export interface MeshTarget { nodeId: number; stack: string; service: string; port: number; alias: string; } export interface MeshRegenFailure { nodeId: number; stackName: string; message: string; } export interface MeshRegenSummary { regenerated: number; failures: MeshRegenFailure[]; skipped: boolean; reason?: string; } /** * How a node participates in mesh routing right now: * - `local`: the Sencho serving this request. * - `pilot`: a remote with a pilot agent. Live-tunnel state is captured * separately in `pilotConnected`. * - `proxy`: a remote that central reaches via the long-lived api_token. * Mesh tunnels are opened on demand by `MeshProxyTunnelDialer`; the * operator sees no badge while the configuration is sound. * - `unreachable`: configuration or runtime problem keeps mesh traffic * from flowing. `reachableReason` carries an actionable hint. */ export type MeshReachableMode = 'local' | 'pilot' | 'proxy' | 'unreachable'; export interface MeshNodeStatus { nodeId: number; nodeName: string; enabled: boolean; /** Forwarder state for the LOCAL node (the Sencho instance answering this request). Always `null` for any non-local node — fetching the remote forwarder state requires a cross-node call which lands in Phase B. */ localForwarderListening: boolean | null; /** * True iff a pilot tunnel is currently registered for this node. Only * meaningful when `reachableMode === 'pilot'`. Kept for diagnostic * surfaces; the Routing tab badge logic consumes `reachableMode` and * ignores this field for proxy / local nodes. * TODO: collapse into `reachableMode` (introduce `pilot_offline` value) * once no remaining caller reads `pilotConnected` directly. */ pilotConnected: boolean; /** Canonical reachability classification consumed by the Routing tab. */ reachableMode: MeshReachableMode; /** Short, operator-facing reason when `reachableMode === 'unreachable'`. Null otherwise. */ reachableReason: string | null; optedInStacks: string[]; activeStreamCount: number; } export interface MeshNodeDiagnostic { nodeId: number; forwarder: { listening: boolean; listenerCount: number }; pilot: { connected: boolean; bufferedAmount: number; lastSeen: number | null }; activeStreams: Array<{ streamId: number; alias?: string; bytesIn: number; bytesOut: number; ageMs: number }>; aliasCache: Array<{ host: string; targetNodeId: number; port: number }>; } export interface MeshRouteDiagnostic { alias: string; target: MeshTarget | null; pilot: { connected: boolean; lastSeen: number | null }; lastError: { ts: number; message: string } | null; lastProbeMs: number | null; state: 'healthy' | 'degraded' | 'unreachable' | 'tunnel down' | 'not authorized'; } export interface MeshProbeResult { ok: boolean; latencyMs?: number; where?: 'no_route' | 'pilot_tunnel' | 'agent_resolve' | 'agent_dial' | 'target_port'; code?: string; message?: string; } interface ActiveStreamRecord { streamId: number; alias?: string; bytesIn: number; bytesOut: number; openedAt: number; } /** * Sencho Mesh orchestrator. Owns: * - in-process TCP forwarder (`MeshForwarder`) that binds host-network * listeners on alias ports. Replaces the prior separate sidecar * container; one container per node now. * - opt-in / opt-out persistence and cascading override regeneration * - global alias aggregation (across the fleet via the existing HTTP * proxy chain, see `inspectStackServices`) * - cross-node TCP forwarding via `PilotTunnelManager` (central-side) * - probe + diagnostics + activity ring buffer * * V1 limitations: * - one cross-node alias per TCP port across the fleet (port-collision * check at opt-in) * - aliases resolve to Sencho's static IP on the internal `sencho_mesh` * Docker bridge network. Meshed user services join `sencho_mesh` so * that IP is reachable from inside their containers without any * host-firewall coordination. * - cross-node mesh routing is central → pilot in this phase. Pilot → * central and pilot ↔ pilot via central relay land in Phase B. */ export class MeshService extends EventEmitter implements MeshForwarderHost { private static instance: MeshService; private started = false; private aliasCache = new Map(); private aliasByPort = new Map(); // Populated on pilot nodes via the D-1 override push. Central's // db.listMeshStacks() is authoritative on central; pilots have no // mesh_stacks rows (C-3 design), so the push payload carries the alias // data they need to bind forwarder listeners for the reverse direction. private pilotAliasOverlay = new Map(); private activity: MeshActivityEvent[] = []; private activeStreams = new Map(); private aliasRefreshTimer?: NodeJS.Timeout; private routeErrorMap = new Map(); private routeLatencyMap = new Map(); private activityListeners = new Set<(e: MeshActivityEvent) => void>(); private readonly forwarder: MeshForwarder; private senchoIp: string | null = null; private meshSubnet: string = DEFAULT_MESH_SUBNET; private networkSetupError: string | null = null; // On a pilot node, central's DB id for this node (e.g. 14). Used by // handleAccept to decide same-node vs cross-node; the pilotAliasOverlay // carries nodeIds from central's perspective, so comparing against the // pilot's own local DB id (always 1) inverts dispatch. Null on central // (fallback to getDefaultNodeId()). Populated from SENCHO_ENROLL_TOKEN. private selfCentralNodeId: number | null = null; // On a proxy-mode peer, central's DB id for this node, communicated // through the `?nodeId=` query param on the `/api/mesh/proxy-tunnel` WS // upgrade. Same purpose as `selfCentralNodeId` but for proxy peers, // where there is no SENCHO_ENROLL_TOKEN to read at boot. Takes // precedence in `handleAccept`'s self-id resolution because the active // upstream tunnel is the most authoritative source. Cleared on tunnel // close. private proxyTunnelSelfCentralNodeId: number | null = null; private constructor() { super(); this.setMaxListeners(50); this.forwarder = new MeshForwarder(this); } public static getInstance(): MeshService { if (!MeshService.instance) MeshService.instance = new MeshService(); return MeshService.instance; } private resolveSelfCentralNodeId(): number { const tok = process.env.SENCHO_ENROLL_TOKEN; if (tok) { try { // Extract payload only — signature verification not needed here; // we only need the nodeId claim, not auth. const [, b64] = tok.split('.'); const payload = JSON.parse( Buffer.from(b64, 'base64url').toString('utf8'), ) as Record; if (typeof payload.nodeId === 'number') return payload.nodeId; } catch { // Malformed token; fall through to local default. } } return NodeRegistry.getInstance().getDefaultNodeId(); } public async start(): Promise { if (this.started) return; this.started = true; const ptm = PilotTunnelManager.getInstance(); ptm.on('tunnel-down', (nodeId: number) => this.onTunnelDown(nodeId)); ptm.on('tunnel-up', (nodeId: number) => { this.logActivity({ source: 'pilot', level: 'info', type: 'tunnel.open', nodeId, message: `pilot tunnel up for node ${nodeId}`, }); // Boot regen runs before any pilot tunnel comes up, so any // pilot-mode node misses its initial override push. Now that // the tunnel is live, retry the regen for this node so its // overrides on disk match what central holds. Idempotent: // pushOverrideToNode writes the same file every time, and a // tunnel reconnect during runtime regenerates harmlessly. void this.regenerateOverridesForNode(nodeId).catch((err) => { this.logActivity({ source: 'mesh', level: 'warn', type: 'forwarder.error', nodeId, message: `tunnel-up regen failed for node ${nodeId}: ${sanitizeForLog((err as Error).message)}`, }); }); }); this.selfCentralNodeId = this.resolveSelfCentralNodeId(); this.maybeWarnUnsetPrimaryUrl(); await this.setupMeshNetwork(); try { await this.refreshAliasCache(); } catch (err) { this.logActivity({ source: 'mesh', level: 'error', type: 'forwarder.error', message: `boot refreshAliasCache failed: ${sanitizeForLog((err as Error).message)}`, }); } try { await this.syncForwarderListeners(); } catch (err) { this.logActivity({ source: 'mesh', level: 'error', type: 'forwarder.error', message: `boot syncForwarderListeners failed: ${sanitizeForLog((err as Error).message)}`, }); } await this.regenerateAllOverrides(); // Trigger 3: proactively re-establish central->peer bridges so any // peer that is online and capable receives bootstrap material on // startup. Fire-and-forget so start() does not block on remote I/O. void this.proactiveBootstrapFanout(); this.aliasRefreshTimer = setInterval(() => { void (async () => { try { await this.refreshAliasCache(); await this.syncForwarderListeners(); } catch (err) { console.warn('[MeshService] alias refresh failed:', sanitizeForLog((err as Error).message)); } })(); }, ALIAS_REFRESH_INTERVAL_MS); const dataPlane = this.senchoIp ? 'ok' : `unavailable (${this.networkSetupError ?? 'unknown'})`; this.logActivity({ source: 'mesh', level: this.senchoIp ? 'info' : 'warn', type: 'mesh.enable', message: `MeshService started (data plane ${dataPlane}, self nodeId ${this.selfCentralNodeId})`, }); } public async stop(): Promise { if (!this.started) return; this.started = false; if (this.aliasRefreshTimer) { clearInterval(this.aliasRefreshTimer); this.aliasRefreshTimer = undefined; } await this.forwarder.shutdown(); } /** * Operator-facing preflight: if `SENCHO_PRIMARY_URL` is unset at * startup and the central has at least one mesh-enabled proxy-mode * node, warn that the Task 8 capability-gated handshake will fall * back to an inferred origin for the callback bootstrap. The matching * fail-safe in `MeshProxyTunnelDialer` silently skips the bootstrap * when the env is unset; this warn makes the consequence visible. */ private maybeWarnUnsetPrimaryUrl(): void { if (process.env.SENCHO_PRIMARY_URL) return; const row = DatabaseService.getInstance().getDb().prepare(` SELECT COUNT(*) as n FROM nodes WHERE type='remote' AND mode='proxy' AND mesh_enabled=1 `).get() as { n: number }; if (row.n > 0) { console.warn( '[Mesh] SENCHO_PRIMARY_URL is unset; mesh callback bootstrap will use ' + 'inferred origin. Set SENCHO_PRIMARY_URL to make peer-initiated mesh ' + 'callbacks robust against reverse-proxy edge cases.' ); } } /** * Trigger 3: at central startup, walk every mesh-enabled proxy-mode * peer that already has at least one `mesh_stacks` row and call * `MeshProxyTunnelDialer.ensureBridge(nodeId)`. The dialer's * capability-gated handshake then mints and ships bootstrap material * to peers that just came online or just got upgraded to a build that * advertises `mesh_proxy_callback_bootstrap`. Bounded concurrency 4 * with a 250ms stagger; failures are logged and never abort the * fan-out. */ private async proactiveBootstrapFanout(): Promise { const rows = DatabaseService.getInstance().getDb().prepare(` SELECT DISTINCT n.id AS id FROM nodes n INNER JOIN mesh_stacks ms ON ms.node_id = n.id WHERE n.type = 'remote' AND n.mode = 'proxy' AND n.mesh_enabled = 1 ORDER BY n.id `).all() as Array<{ id: number }>; const queue = rows.map((r) => r.id); const dialer = MeshProxyTunnelDialer.getInstance(); const worker = async (): Promise => { for (;;) { const nodeId = queue.shift(); if (nodeId === undefined) return; try { await dialer.ensureBridge(nodeId); } catch (err) { this.logActivity({ source: 'mesh', level: 'warn', type: 'proxy-tunnel.open.fail', nodeId, message: `boot proactive bootstrap failed: ${sanitizeForLog((err as Error).message)}`, details: { trigger: 'startup_fanout' }, }); } await new Promise((r) => setTimeout(r, 250)); } }; const workerCount = Math.min(4, Math.max(1, queue.length)); await Promise.all(Array.from({ length: workerCount }, () => worker())); } public getSenchoIp(): string | null { return this.senchoIp; } public getMeshSubnet(): string { return this.meshSubnet; } public getNetworkSetupError(): string | null { return this.networkSetupError; } /** * Idempotent setup of the shared `sencho_mesh` Docker bridge network and * Sencho's static attachment to it. Called once at boot before alias * cache refresh. Failures here disable mesh routing for the lifetime of * the process (forwarder still binds, but `ensureStackOverride` short- * circuits because there is no IP to point user containers at). * * Skipped entirely when Sencho is not running inside Docker (dev mode, * detected by an unset HOSTNAME env var or by the inspect lookup * failing). The forwarder still runs locally for unit-test coverage. */ private async setupMeshNetwork(): Promise { const subnet = (process.env.SENCHO_MESH_SUBNET || DEFAULT_MESH_SUBNET).trim(); try { this.senchoIp = getSenchoIpFromSubnet(subnet); this.meshSubnet = subnet; } catch (err) { this.networkSetupError = (err as Error).message; console.warn('[Mesh]', this.networkSetupError); this.senchoIp = null; return; } try { await this.ensureMeshNetwork(subnet); } catch (err) { this.networkSetupError = (err as Error).message; console.warn('[Mesh] mesh network setup failed:', sanitizeForLog(this.networkSetupError)); this.senchoIp = null; return; } try { await this.ensureSelfAttached(); } catch (err) { this.networkSetupError = (err as Error).message; console.warn('[Mesh] self-attach failed:', sanitizeForLog(this.networkSetupError)); this.senchoIp = null; return; } this.networkSetupError = null; } /** * Create `sencho_mesh` if it does not exist. If it does, validate the * subnet matches `expectedSubnet`; on mismatch, refuse to continue. * Silently using the wrong subnet would route traffic to the wrong IP. */ private async ensureMeshNetwork(expectedSubnet: string): Promise { const dc = DockerController.getInstance(NodeRegistry.getInstance().getDefaultNodeId()); try { await dc.createNetwork({ Name: SENCHO_MESH_NETWORK, Driver: 'bridge', Attachable: true, IPAM: { Config: [{ Subnet: expectedSubnet }] }, Labels: { 'io.sencho.mesh': 'true' }, }); return; } catch (err) { const e = err as { statusCode?: number; message?: string }; if (e?.statusCode !== 409) throw err; } const info = await dc.inspectNetwork(SENCHO_MESH_NETWORK) as { IPAM?: { Config?: Array<{ Subnet?: string }> }; }; const existingSubnet = info?.IPAM?.Config?.[0]?.Subnet; if (existingSubnet && existingSubnet !== expectedSubnet) { throw new Error( `${SENCHO_MESH_NETWORK} exists with subnet ${existingSubnet}, ` + `expected ${expectedSubnet}. Remove the network or set SENCHO_MESH_SUBNET to match.`, ); } } /** * Connect Sencho's own container to `sencho_mesh` at the static IP. Uses * the `HOSTNAME` env var (which Docker sets to the container's short ID * by default) to identify the container, mirroring the * SelfUpdateService pattern. Skipped in dev mode where HOSTNAME is * the laptop hostname and the inspect lookup would fail. */ private async ensureSelfAttached(): Promise { if (!this.senchoIp) return; const hostname = process.env.HOSTNAME; if (!hostname) { console.log('[Mesh] HOSTNAME not set, mesh routing disabled (not running in Docker?)'); this.senchoIp = null; return; } const dc = DockerController.getInstance(NodeRegistry.getInstance().getDefaultNodeId()); try { await dc.connectContainerToNetwork(SENCHO_MESH_NETWORK, hostname, { ipv4Address: this.senchoIp }); } catch (err) { const e = err as { statusCode?: number; message?: string }; if (e?.statusCode === 404) { this.logActivity({ source: 'mesh', level: 'warn', type: 'mesh.disable', message: 'self-container lookup failed; mesh routing disabled (not running in Docker?)', }); console.warn('[Mesh] self-container lookup failed; mesh routing disabled (not running in Docker?)'); this.senchoIp = null; return; } throw err; } } /** * Bind the forwarder's listeners to every alias port across the fleet * and release any listeners no longer in the alias set. Called from * `start`, after each `refreshAliasCache` tick, and after every * opt-in / opt-out / disable so the bound port set follows the DB * state. * * Every meshed node binds every alias port (not just ports it owns) * because alias DNS entries resolve to the SOURCE node's Sencho IP, so * the source node is where the inbound TCP connection lands. * `handleAccept` then dispatches to the same-node fast path or the * cross-node bridge based * on the resolved alias's owner. Fleet-wide port collisions are * blocked at opt-in time (`optInStack` checks `aliasByPort`), so * binding every alias port is unambiguous. */ private async syncForwarderListeners(): Promise { const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); const wantPorts = new Set(this.aliasByPort.keys()); const havePorts = new Set(this.forwarder.getListenerPorts()); for (const port of havePorts) { if (!wantPorts.has(port)) { await this.forwarder.unlisten(port); this.logActivity({ source: 'mesh', level: 'info', type: 'forwarder.unlisten', nodeId: localNodeId, message: `forwarder released port ${port}`, }); } } for (const port of wantPorts) { if (havePorts.has(port)) continue; try { await this.forwarder.listen(port); this.logActivity({ source: 'mesh', level: 'info', type: 'forwarder.listen', nodeId: localNodeId, message: `forwarder listening on port ${port}`, }); } catch (err) { this.logActivity({ source: 'mesh', level: 'error', type: 'forwarder.error', nodeId: localNodeId, message: `forwarder bind failed on port ${port}: ${sanitizeForLog((err as Error).message)}`, details: { port }, }); } } } // --- Activity log --- public logActivity(event: Omit): void { const full: MeshActivityEvent = { ts: Date.now(), ...event }; this.activity.push(full); if (this.activity.length > ACTIVITY_BUFFER_SIZE) this.activity.shift(); for (const listener of this.activityListeners) { try { listener(full); } catch { /* ignore */ } } if (event.alias && event.level === 'error') { this.routeErrorMap.set(event.alias, { ts: full.ts, message: event.message }); } } public getActivity(filter?: { alias?: string; source?: MeshActivitySource; level?: MeshActivityLevel; limit?: number }): MeshActivityEvent[] { let out = this.activity; if (filter?.alias) out = out.filter((e) => e.alias === filter.alias); if (filter?.source) out = out.filter((e) => e.source === filter.source); if (filter?.level) out = out.filter((e) => e.level === filter.level); const limit = filter?.limit ?? 200; return out.slice(-limit); } public subscribeActivity(listener: (e: MeshActivityEvent) => void): () => void { this.activityListeners.add(listener); return () => { this.activityListeners.delete(listener); }; } // --- Opt-in / opt-out --- public async optInStack(nodeId: number, stackName: string, actor: string): Promise { if (!isValidStackName(stackName)) { throw new MeshError('denied', `invalid stack name: ${stackName}`); } if (!this.senchoIp) { throw new MeshError( 'denied', this.networkSetupError || 'mesh data plane unavailable (mesh network setup did not complete)', ); } const db = DatabaseService.getInstance(); if (db.isMeshStackEnabled(nodeId, stackName)) return; const services = await this.inspectStackServices(nodeId, stackName); if (services.length === 0) { throw new MeshError('no_target', `stack ${stackName} has no running services on this node`); } const newPorts = new Set(); for (const svc of services) for (const p of svc.ports) newPorts.add(p); if (newPorts.size === 0) { throw new MeshError( 'no_target', `stack ${stackName} has no service ports to mesh (every service declared ports: [])`, ); } if (newPorts.has(SENCHO_LISTEN_PORT)) { throw new MeshError( 'port_collision', `port ${SENCHO_LISTEN_PORT} is reserved for the Sencho API and cannot be used by a meshed service`, ); } for (const port of newPorts) { const existing = this.aliasByPort.get(port); if (existing) { throw new MeshError( 'port_collision', `port ${port} is already claimed by ${existing.host}`, ); } } db.insertMeshStack(nodeId, stackName, actor); await this.refreshAliasCache(); await this.syncForwarderListeners(); // Push the just-opted-in stack's override loudly. If this fails the // DB state is invalid (alias claimed but remote pilot has no // override file) so roll back rather than leave a half-state that // future opt-in calls would short-circuit on `isMeshStackEnabled`. try { await this.pushOverrideToNode(nodeId, stackName); } catch (err) { db.deleteMeshStack(nodeId, stackName); await this.refreshAliasCache(); await this.syncForwarderListeners(); throw err; } // Regenerate every other meshed stack's override across the fleet // so they pick up the new alias entry. The just-opted-in stack was // already pushed above; skip the (nodeId, stackName) tuple to // avoid a duplicate round-trip. Best-effort; per-stack failures // surface as forwarder.error activity events. await this.regenerateOverridesAcrossFleet(nodeId, stackName); this.triggerRedeploy(nodeId, stackName, actor); this.logActivity({ source: 'mesh', level: 'info', type: 'opt_in', nodeId, message: `opt-in ${stackName}`, details: { actor }, }); db.insertAuditLog({ timestamp: Date.now(), username: actor, method: 'POST', path: `/api/mesh/nodes/${nodeId}/stacks/${stackName}/opt-in`, status_code: 200, node_id: nodeId, ip_address: '127.0.0.1', summary: `Sencho Mesh: opted ${stackName} into the mesh`, }); } public async optOutStack(nodeId: number, stackName: string, actor: string): Promise { if (!isValidStackName(stackName)) { throw new MeshError('denied', `invalid stack name: ${stackName}`); } const db = DatabaseService.getInstance(); if (!db.isMeshStackEnabled(nodeId, stackName)) return; db.deleteMeshStack(nodeId, stackName); await this.removeOverrideFromNode(nodeId, stackName); await this.refreshAliasCache(); await this.syncForwarderListeners(); // The opted-out row is already deleted, so listMeshStacks() will not // include it. Walk the remaining fleet-wide rows so every other // meshed stack regenerates its override without the dropped alias. await this.regenerateOverridesAcrossFleet(); this.triggerRedeploy(nodeId, stackName, actor); this.logActivity({ source: 'mesh', level: 'info', type: 'opt_out', nodeId, message: `opt-out ${stackName}`, details: { actor }, }); db.insertAuditLog({ timestamp: Date.now(), username: actor, method: 'POST', path: `/api/mesh/nodes/${nodeId}/stacks/${stackName}/opt-out`, status_code: 200, node_id: nodeId, ip_address: '127.0.0.1', summary: `Sencho Mesh: opted ${stackName} out of the mesh`, }); } public async enableForNode(nodeId: number): Promise { DatabaseService.getInstance().setNodeMeshEnabled(nodeId, true); this.logActivity({ source: 'mesh', level: 'info', type: 'mesh.enable', nodeId, message: `mesh enabled on node ${nodeId}`, }); // Trigger 1: proactive bootstrap. If the peer is a proxy-mode remote, // dial the mesh callback bridge immediately so the capability-gated // handshake can ship `mesh_handshake` material without waiting for // the next forwarder dial. Fire-and-forget; failures are logged by // the dialer. const node = DatabaseService.getInstance().getNode(nodeId); if (node && node.type === 'remote' && node.mode === 'proxy') { void MeshProxyTunnelDialer.getInstance().ensureBridge(nodeId).catch((err) => { console.warn(`[Mesh] proactive bootstrap on mesh-enable failed for node ${nodeId}: ${(err as Error).message}`); }); } } public async disableForNode(nodeId: number): Promise { DatabaseService.getInstance().setNodeMeshEnabled(nodeId, false); const stacks = DatabaseService.getInstance().listMeshStacks(nodeId); for (const s of stacks) { DatabaseService.getInstance().deleteMeshStack(nodeId, s.stack_name); await this.removeStackOverride(nodeId, s.stack_name); } await this.refreshAliasCache(); await this.syncForwarderListeners(); this.logActivity({ source: 'mesh', level: 'info', type: 'mesh.disable', nodeId, message: `mesh disabled on node ${nodeId}`, }); } // --- Override file management --- public async ensureStackOverride(nodeId: number, stackName: string): Promise { if (!isValidStackName(stackName)) return null; const db = DatabaseService.getInstance(); const dir = this.overrideDirFor(nodeId); if (!db.isMeshStackEnabled(nodeId, stackName)) { // Pilot nodes intentionally have no mesh_stacks rows (opt-in state // lives on central per the C-3 design). Use file-presence as the // fallback: if central pushed an override via applyLocalOverride, return // that path so ComposeService picks it up on the next deploy. const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return null; try { await fs.access(file); return file; } catch { return null; } } if (!this.senchoIp) return null; const aliases: MeshAlias[] = Array.from(this.aliasCache.values()).map((a) => ({ host: a.host })); const serviceNames = await this.getDeclaredStackServiceNames(stackName, nodeId); await fs.mkdir(dir, { recursive: true }); // path.basename mirrors the applyLocalOverride pattern (and is // the form CodeQL's path-injection model recognizes). const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return null; // Defensive fallback: a deploy that runs `compose down` immediately // before `compose up` removes the containers, but the compose file // is still on disk so getDeclaredStackServiceNames returns the // declared services. The fallback below covers the much narrower // case where the compose file itself is unreadable (permission // glitch, transient FS error, mid-write rename); in that case // keep any existing override rather than overwrite with `services: {}`. if (serviceNames.length === 0) { const existing = await this.readExistingOverrideServiceNames(dir, stackName); if (existing.length > 0) { this.logActivity({ source: 'mesh', level: 'warn', type: 'mesh.override.preserved', nodeId, message: `mesh override preserved for ${stackName}: declared services unreadable, keeping ${existing.length} existing entries`, details: { stackName, preservedServices: existing }, }); return file; } } const yaml = generateOverrideYaml({ services: serviceNames, aliases, senchoIp: this.senchoIp, }); await fs.writeFile(file, yaml, 'utf8'); return file; } /** * Render and write a mesh override on the LOCAL node's filesystem from * a fleet-wide alias list supplied by central. The pilot looks up its * own service names and uses its own static IP, so each node's * override resolves alias hostnames to that node's local Sencho. * This is critical because each node has its own `sencho_mesh` * network with its own subnet. Returns the absolute path on success * or null if path validation rejects the input. */ public async applyLocalOverride( stackName: string, aliases: MeshAlias[], portAliases?: MeshGlobalAlias[], ): Promise { if (!isValidStackName(stackName)) return null; if (!this.senchoIp) { throw new MeshError( 'push_failed', this.networkSetupError || 'mesh data plane unavailable on this node', ); } const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); const serviceNames = await this.getDeclaredStackServiceNames(stackName, localNodeId); const dir = this.overrideDirFor(localNodeId); await fs.mkdir(dir, { recursive: true }); // path.basename strips any directory component as defense-in-depth // on top of isValidStackName + isPathWithinBase. Recognized by // CodeQL's path-injection model. const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return null; // Defensive fallback (mirror of ensureStackOverride): keep any // existing override when the compose file is transiently // unreadable. The remote that pushed this update will retry on // its next regen tick, so a one-shot read failure should not // wipe out a working override. if (serviceNames.length === 0) { const existing = await this.readExistingOverrideServiceNames(dir, stackName); if (existing.length > 0) { this.logActivity({ source: 'mesh', level: 'warn', type: 'mesh.override.preserved', nodeId: localNodeId, message: `mesh override preserved for ${stackName}: declared services unreadable, keeping ${existing.length} existing entries`, details: { stackName, preservedServices: existing }, }); return file; } } const yaml = generateOverrideYaml({ services: serviceNames, aliases, senchoIp: this.senchoIp, }); await fs.writeFile(file, yaml, 'utf8'); if (portAliases && portAliases.length > 0) { this.pilotAliasOverlay.set(stackName, portAliases); await this.refreshAliasCache(); await this.syncForwarderListeners(); } return file; } /** * Delete a previously applied local override (mirror of * `applyLocalOverride`). Used by central when a stack is opted out. */ public async removeLocalOverride(stackName: string): Promise { if (!isValidStackName(stackName)) return; const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); const dir = this.overrideDirFor(localNodeId); const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return; try { await fs.unlink(file); } catch { /* ignore not-exist */ } if (this.pilotAliasOverlay.delete(stackName)) { await this.refreshAliasCache(); await this.syncForwarderListeners(); } } private async removeStackOverride(nodeId: number, stackName: string): Promise { if (!isValidStackName(stackName)) return; const dir = this.overrideDirFor(nodeId); const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return; try { await fs.unlink(file); } catch { /* ignore not-exist */ } } private overrideDirFor(nodeId: number): string { const dataDir = process.env.DATA_DIR || '/app/data'; return path.join(dataDir, 'mesh', 'overrides', String(nodeId)); } private async regenerateOverridesForNode(nodeId: number, skipStack?: string): Promise { const db = DatabaseService.getInstance(); const stacks = db.listMeshStacks(nodeId); // Push all overrides in parallel: each remote-node call is its own // HTTP round-trip, so awaiting sequentially turns N stacks into N // serialised PUTs. `allSettled` so a single failure does not abort // the others. await Promise.allSettled( stacks .filter((s) => s.stack_name !== skipStack) .map(async (s) => { try { await this.pushOverrideToNode(nodeId, s.stack_name); } catch (err) { console.warn('[MeshService] override push failed:', sanitizeForLog((err as Error).message)); } }), ); } /** * Walk every `mesh_stacks` row across the fleet and re-push each override. * Called from optInStack / optOutStack so a new or removed alias * propagates to every meshed node's override file in one pass, not just * the node whose row changed. Best-effort: per-stack failures emit a * forwarder.error activity event and the other nodes still get * regenerated. An offline remote node leaves stale overrides until the * next opt-in / opt-out, the next tunnel reconnect, or a manual * `POST /api/mesh/regen-overrides`. */ private async regenerateOverridesAcrossFleet( skipNodeId?: number, skipStack?: string, ): Promise { const db = DatabaseService.getInstance(); const stacks = db.listMeshStacks(); await Promise.allSettled( stacks .filter((s) => !(s.node_id === skipNodeId && s.stack_name === skipStack)) .map(async (s) => { try { await this.pushOverrideToNode(s.node_id, s.stack_name); } catch (err) { const message = sanitizeForLog((err as Error).message); this.logActivity({ source: 'mesh', level: 'warn', type: 'forwarder.error', nodeId: s.node_id, message: `cascade override push failed for ${s.stack_name}: ${message}`, details: { stackName: s.stack_name }, }); } }), ); } /** * Walk every `mesh_stacks` row across the fleet and re-push each override * to its owning node. Called once at boot so on-disk override files * survive a Sencho restart even if they were lost (image rebuild, volume * reset, manual cleanup). Also exposed as `POST /api/mesh/regen-overrides` * so an operator can rerun it after fixing a remote node that was offline * at boot. Best-effort: failures are logged per-stack and other nodes * still get regenerated. An offline remote node leaves stale overrides * until the next opt-in / opt-out on that node, or the next manual rerun. */ public async regenerateAllOverrides(): Promise { if (!this.senchoIp) { const reason = this.networkSetupError ?? 'mesh data plane unavailable'; this.logActivity({ source: 'mesh', level: 'warn', type: 'mesh.disable', message: `mesh override regen skipped: data plane unavailable (${sanitizeForLog(reason)})`, }); return { regenerated: 0, failures: [], skipped: true, reason }; } const db = DatabaseService.getInstance(); const stacks = db.listMeshStacks(); const failures: MeshRegenFailure[] = []; await Promise.allSettled( stacks.map(async (s) => { try { await this.pushOverrideToNode(s.node_id, s.stack_name); } catch (err) { const message = sanitizeForLog((err as Error).message); failures.push({ nodeId: s.node_id, stackName: s.stack_name, message }); this.logActivity({ source: 'mesh', level: 'warn', type: 'forwarder.error', nodeId: s.node_id, message: `mesh override regen failed for ${s.stack_name}: ${message}`, details: { stackName: s.stack_name }, }); } }), ); const succeeded = stacks.length - failures.length; const failedNodeIds = Array.from(new Set(failures.map((f) => f.nodeId))).sort((a, b) => a - b); this.logActivity({ source: 'mesh', level: failures.length === 0 ? 'info' : 'warn', type: 'mesh.enable', message: `mesh override regen complete: ${succeeded} succeeded, ${failures.length} failed across ${failedNodeIds.length} node(s)`, details: { succeeded, failed: failures.length, failedNodeIds }, }); return { regenerated: succeeded, failures, skipped: false }; } // --- Alias aggregation --- public async refreshAliasCache(): Promise { const db = DatabaseService.getInstance(); const next = new Map(); const portMap = new Map(); const stacks = db.listMeshStacks(); // Inspect all stacks in parallel; each remote-node lookup involves an // HTTP fetch with its own 5 s AbortSignal. Sequential awaiting would // let one slow node stall the whole refresh, which is on a 60 s loop. const inspections = await Promise.allSettled( stacks.map(async (row) => { const node = db.getNode(row.node_id); if (!node) return null; const services = await this.inspectStackServices(row.node_id, row.stack_name); return { row, node, services }; }), ); for (const result of inspections) { if (result.status !== 'fulfilled' || !result.value) continue; const { row, node, services } = result.value; for (const svc of services) { const host = `${svc.service}.${row.stack_name}.${node.name}.sencho`; for (const port of svc.ports) { const alias: MeshGlobalAlias = { host, nodeId: row.node_id, nodeName: node.name, stackName: row.stack_name, serviceName: svc.service, port, }; next.set(host, alias); if (!portMap.has(port)) portMap.set(port, alias); } } } // Merge pilot overlay. Invariant: on central, pilotAliasOverlay is // always empty (DB is authoritative); on pilots, db.listMeshStacks() // returns empty (C-3), so the two populations are mutually exclusive // and the first-write-wins portMap policy is safe. for (const overlayAliases of this.pilotAliasOverlay.values()) { for (const alias of overlayAliases) { next.set(alias.host, alias); if (!portMap.has(alias.port)) portMap.set(alias.port, alias); } } this.aliasCache = next; this.aliasByPort = portMap; } public async listAliases(): Promise { return Array.from(this.aliasCache.values()); } /** * Read the local stack's compose file and return its declared service * names. Used by the override-write paths so a deploy that has just * torn containers down still emits a complete services map even * though Dockerode briefly returns no containers. Independent of * runtime container state, so the override stays correct across the * deploy lifecycle. * * Returns [] when the compose file is missing, unreadable, or fails * to parse. Combined with the defensive fallback in * {@link ensureStackOverride} / {@link applyLocalOverride} a transient * empty result does not clobber a known-good override. * * LIMITATION: stacks that pull services in via compose `extends:` or * `include:` will not have those external services covered. The * top-level YAML.parse is sufficient for the supported compose * shapes; if extends/include usage emerges, swap to * `docker compose config --services` (subprocess). */ public async getDeclaredStackServiceNames(stackName: string, nodeId?: number): Promise { if (!isValidStackName(stackName)) return []; const targetNodeId = nodeId ?? NodeRegistry.getInstance().getDefaultNodeId(); try { const fsSvc = FileSystemService.getInstance(targetNodeId); const filename = await fsSvc.getComposeFilename(stackName); const baseDir = fsSvc.getBaseDir(); // path.basename strips any directory component as defense-in-depth // on top of isValidStackName + isPathWithinBase. Recognized by // CodeQL's path-injection model. const composePath = path.join(baseDir, path.basename(stackName), filename); if (!isPathWithinBase(composePath, baseDir)) return []; const content = await fs.readFile(composePath, 'utf8'); const parsed = YAML.parse(content) as { services?: Record } | null; const services = parsed?.services && typeof parsed.services === 'object' ? parsed.services : null; if (!services) return []; return Object.keys(services).filter((name) => /^[A-Za-z0-9_][A-Za-z0-9_.-]*$/.test(name)); } catch (err) { console.warn( '[MeshService] getDeclaredStackServiceNames failed:', sanitizeForLog((err as Error).message), ); return []; } } /** * Parse an existing mesh override file and extract the service names * it already lists. Used by the defensive fallback so a transient * empty compose-file read does not clobber a known-good override. * Takes (dir, stackName) rather than a pre-built filePath so the * path-injection sanitizer pattern (path.basename + isPathWithinBase) * lives next to the read sink and stays recognizable to CodeQL. */ private async readExistingOverrideServiceNames(dir: string, stackName: string): Promise { const file = path.resolve(dir, `${path.basename(stackName)}.override.yml`); if (!isPathWithinBase(file, dir)) return []; try { const content = await fs.readFile(file, 'utf8'); const parsed = YAML.parse(content) as { services?: Record } | null; const services = parsed?.services && typeof parsed.services === 'object' ? parsed.services : null; if (!services) return []; return Object.keys(services); } catch { return []; } } /** * Inspect a stack and return its running services with the ports they * listen on. For the LOCAL Docker daemon only; callers targeting a * remote node must use {@link inspectStackServices}, which dispatches * via the HTTP proxy to the remote's `/api/mesh/local-services/:stack`. */ public async inspectLocalStackServices(stackName: string): Promise> { try { const docker = DockerController.getInstance().getDocker(); const containers = await docker.listContainers({ all: true, filters: { label: [`com.docker.compose.project=${stackName}`] }, }); const byService = new Map>(); for (const c of containers) { const svc = c.Labels?.['com.docker.compose.service']; if (!svc) continue; const ports = byService.get(svc) || new Set(); for (const p of c.Ports || []) { if (p.PrivatePort) ports.add(p.PrivatePort); } byService.set(svc, ports); } return Array.from(byService.entries()).map(([service, ports]) => ({ service, ports: Array.from(ports) })); } catch (err) { console.warn('[MeshService] inspectLocalStackServices failed:', sanitizeForLog((err as Error).message)); return []; } } /** * Inspect a stack on a (possibly remote) node and return its running * services with the ports they listen on. Local nodes hit Dockerode * directly; remote nodes (proxy mode and pilot-agent) reach their own * Sencho's `/api/mesh/local-services/:stackName` via the existing * `NodeRegistry.getProxyTarget` resolution chain because Dockerode is not * directly reachable for remote nodes by design. */ private async inspectStackServices(nodeId: number, stackName: string): Promise> { const node = DatabaseService.getInstance().getNode(nodeId); if (!node) return []; if (node.type !== 'remote') return this.inspectLocalStackServices(stackName); try { const res = await this.proxyFetch( nodeId, 'GET', `/api/mesh/local-services/${encodeURIComponent(stackName)}`, undefined, 5_000, ); if (!res.ok) { console.error(`[MeshService] inspectStackServices: HTTP ${res.status} from node ${nodeId} (${sanitizeForLog(node.name)})`); return []; } const body = await res.json() as { services?: Array<{ service: string; ports: number[] }> }; return body.services ?? []; } catch (err) { // proxyFetch throws MeshError('push_failed') when getProxyTarget // returns null (e.g. pilot tunnel offline). Treat the same as a // non-OK response: empty list. if (err instanceof MeshError && err.code === 'push_failed') { console.warn(`[MeshService] inspectStackServices: no proxy target for node ${nodeId} (${sanitizeForLog(node.name)})`); return []; } console.error('[MeshService] inspectStackServices remote unreachable:', sanitizeForLog((err as Error).message)); return []; } } public async listLocalStacks(): Promise { const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); return FileSystemService.getInstance(localNodeId).getStacks(); } /** * Local nodes read the filesystem; remote nodes fetch their own * Sencho's `/api/mesh/local-stacks` because the remote's compose * directory is not visible from central (pilot's filesystem lives * on a different host). */ public async listStacksOnNode(nodeId: number): Promise { const node = DatabaseService.getInstance().getNode(nodeId); if (!node) return []; if (node.type !== 'remote') return this.listLocalStacks(); try { const res = await this.proxyFetch(nodeId, 'GET', '/api/mesh/local-stacks', undefined, 5_000); if (!res.ok) { console.error(`[MeshService] listStacksOnNode: HTTP ${res.status} from node ${nodeId} (${sanitizeForLog(node.name)})`); return []; } const body = await res.json() as { stacks?: unknown }; if (!Array.isArray(body.stacks)) return []; return body.stacks.filter((s): s is string => typeof s === 'string'); } catch (err) { // proxyFetch throws MeshError('push_failed') when getProxyTarget // returns null (e.g. pilot tunnel offline). Treat the same as a // non-OK response: empty list. if (err instanceof MeshError && err.code === 'push_failed') { console.warn(`[MeshService] listStacksOnNode: no proxy target for node ${nodeId} (${sanitizeForLog(node.name)})`); return []; } console.error('[MeshService] listStacksOnNode remote unreachable:', sanitizeForLog((err as Error).message)); return []; } } /** * Build a `fetch` against a remote Sencho's API with the bearer token * and the proxy tier/variant headers in place. Centralizes the header * shape so a future addition (license header, audit context) only * needs to land in one place. * * `x-node-id` is deliberately NOT set: callers target the remote * Sencho's own routes, which operate against the remote's local node * id. The bearer token alone authenticates. */ private async proxyFetch( nodeId: number, method: 'GET' | 'PUT' | 'POST' | 'DELETE', apiPath: string, body: unknown, timeoutMs: number, ): Promise { const target = NodeRegistry.getInstance().getProxyTarget(nodeId); if (!target) throw new MeshError('push_failed', `no proxy target for node ${nodeId}`); const url = `${target.apiUrl.replace(/\/$/, '')}${apiPath}`; const headers: Record = {}; if (body !== undefined) headers['Content-Type'] = 'application/json'; if (target.apiToken) headers['Authorization'] = `Bearer ${target.apiToken}`; const proxyHeaders = LicenseService.getInstance().getProxyHeaders(); headers[PROXY_TIER_HEADER] = proxyHeaders.tier; headers[PROXY_VARIANT_HEADER] = proxyHeaders.variant || ''; return await fetch(url, { method, headers, body: body === undefined ? undefined : JSON.stringify(body), signal: AbortSignal.timeout(timeoutMs), }); } /** * Place a mesh override for a stack on whichever node owns it: * - local node: regenerates via `ensureStackOverride`, which uses * central's own senchoIp (correct because central is the node * deploying that stack). * - remote node: sends the fleet-wide alias list to the remote's * `PUT /api/mesh/local-override/:stackName`; the remote renders * the YAML using its OWN local senchoIp and writes it under its * own DATA_DIR. This is essential because each node has its own * `sencho_mesh` network and may be configured with a different * SENCHO_MESH_SUBNET, so alias hostnames must always resolve to * the local Sencho IP on the deploying node. * * Throws on remote push failure so callers (opt-in / opt-out) can abort * cleanly rather than silently leaving stale overrides. */ public async pushOverrideToNode(nodeId: number, stackName: string): Promise { const node = DatabaseService.getInstance().getNode(nodeId); if (!node) throw new MeshError('denied', `unknown node ${nodeId}`); if (node.type !== 'remote') { await this.ensureStackOverride(nodeId, stackName); return; } const portAliases: MeshGlobalAlias[] = Array.from(this.aliasCache.values()); const aliases: MeshAlias[] = portAliases.map((a) => ({ host: a.host })); const res = await this.proxyFetch( nodeId, 'PUT', `/api/mesh/local-override/${encodeURIComponent(stackName)}`, { aliases, portAliases }, 5_000, ); if (res.status === 404) { throw new MeshError( 'push_failed', `node ${node.name} does not support mesh override push (upgrade required)`, ); } if (!res.ok) { throw new MeshError('push_failed', `HTTP ${res.status} from node ${node.name}`); } } /** * Fire-and-forget redeploy of a stack on whichever node owns it. Used * by opt-in and opt-out so the new alias entries reach the user * containers' /etc/hosts without an operator manually clicking deploy. * * For local stacks: invokes `ComposeService.deployStack` directly. * For remote stacks: HTTP POSTs to `/api/stacks/:name/deploy` * via the same bearer-token pattern the rest of the proxy chain uses. * * Errors are logged to the mesh activity buffer rather than thrown so * the opt-in or opt-out call site can return success quickly. The * operator sees the redeploy progress through the existing deploy * stream surfaces; if it fails, the activity log records why. */ public triggerRedeploy(nodeId: number, stackName: string, actor: string): void { void this.runRedeploy(nodeId, stackName, actor).catch((err) => { const reason = sanitizeForLog((err as Error).message); this.logActivity({ source: 'mesh', level: 'error', type: 'forwarder.error', nodeId, message: `mesh redeploy failed for ${stackName}: ${reason}`, details: { actor, stackName }, }); // Also drop a durable audit row so an operator who walks away // from the toast still has a trail. The activity ring buffer // alone gets pruned at 1000 events. DatabaseService.getInstance().insertAuditLog({ timestamp: Date.now(), username: actor, method: 'POST', path: `/api/mesh/nodes/${nodeId}/stacks/${stackName}/redeploy`, status_code: 500, node_id: nodeId, ip_address: '127.0.0.1', summary: `Sencho Mesh: redeploy failed for ${stackName}: ${reason}`, }); }); } private async runRedeploy(nodeId: number, stackName: string, actor: string): Promise { const node = DatabaseService.getInstance().getNode(nodeId); if (!node) throw new Error(`unknown node ${nodeId}`); if (node.type !== 'remote') { await assertPolicyGateAllows( stackName, nodeId, buildSystemPolicyGateOptions(actor, { auditPath: `/api/mesh/nodes/${nodeId}/stacks/${stackName}/redeploy`, }), ); await ComposeService.getInstance(nodeId).deployStack(stackName); this.logActivity({ source: 'mesh', level: 'info', type: 'mesh.enable', nodeId, message: `mesh redeploy ok for ${stackName}`, details: { actor, stackName }, }); return; } // Mesh redeploys are bounded by docker compose's own runtime; pick a // generous ceiling rather than the 5 s default used for control-plane // calls so a slow image pull does not abort the redeploy. const res = await this.proxyFetch( nodeId, 'POST', `/api/stacks/${encodeURIComponent(stackName)}/deploy`, {}, 10 * 60 * 1000, ); if (!res.ok) { const body = await res.text().catch(() => ''); throw new Error(`HTTP ${res.status} from node ${node.name}: ${body.slice(0, 256)}`); } this.logActivity({ source: 'mesh', level: 'info', type: 'mesh.enable', nodeId, message: `mesh redeploy ok for ${stackName}`, details: { actor, stackName }, }); } public async removeOverrideFromNode(nodeId: number, stackName: string): Promise { const node = DatabaseService.getInstance().getNode(nodeId); if (!node) return; if (node.type !== 'remote') { await this.removeStackOverride(nodeId, stackName); return; } try { await this.proxyFetch( nodeId, 'DELETE', `/api/mesh/local-override/${encodeURIComponent(stackName)}`, undefined, 5_000, ); } catch (err) { console.warn('[MeshService] removeOverrideFromNode failed:', sanitizeForLog((err as Error).message)); } } // --- Resolution + forwarding --- public resolveByLocalPort(port: number): MeshTarget | null { const alias = this.aliasByPort.get(port); if (!alias) return null; return { nodeId: alias.nodeId, stack: alias.stackName, service: alias.serviceName, port: alias.port, alias: alias.host, }; } /** * MeshForwarder calls this on every accepted inbound socket. Resolves * the alias by destination port, then dispatches to the same-node fast * path or the cross-node bridge path. */ public async handleAccept(port: number, src: net.Socket): Promise { const target = this.resolveByLocalPort(port); if (!target) { this.logActivity({ source: 'mesh', level: 'warn', type: 'route.resolve.denied', message: `inbound on port ${port} has no registered alias`, details: { port, remoteAddr: src.remoteAddress ?? '' }, }); try { src.destroy(); } catch { /* ignore */ } return; } // Resolution order: active proxy-tunnel install > boot-time enroll // token > local DB default. The proxy-tunnel value is the most // authoritative when present because the upstream central just told // this peer how it sees it; the enroll token covers pilot mode; the // default-node fallback covers central itself. const selfNodeId = this.proxyTunnelSelfCentralNodeId ?? this.selfCentralNodeId ?? NodeRegistry.getInstance().getDefaultNodeId(); if (target.nodeId === selfNodeId) { await this.openSameNode(target, src); } else { await this.openCrossNode(target, src); } } /** * Same-node forward: dial the target container's bridge IP directly. * Sencho runs in `network_mode: host` so it sees the docker bridge * networks and can reach container IPs without going through any * host-port publish. Looks up the container by Compose's * `--` naming convention; falls back to a * label-filtered listContainers if the conventional name is absent * (e.g. when the operator overrode the project name). */ private async openSameNode(target: MeshTarget, src: net.Socket): Promise { const ip = await this.resolveContainerIp(target); if (!ip) { this.logActivity({ source: 'mesh', level: 'error', type: 'route.resolve.denied', alias: target.alias, message: `cannot resolve container IP for ${target.alias}`, }); try { src.destroy(); } catch { /* ignore */ } return; } const upstream = net.createConnection({ host: ip, port: target.port }); upstream.setTimeout(PROBE_TIMEOUT_MS); const stream = this.registerActiveStream(target.alias); upstream.once('connect', () => { upstream.setTimeout(0); this.logActivity({ source: 'mesh', level: 'info', type: 'route.resolve.ok', alias: target.alias, streamId: stream.streamId, message: `same-node connect to ${target.alias} (${ip}:${target.port})`, }); src.pipe(upstream); upstream.pipe(src); }); const teardown = () => { this.activeStreams.delete(stream.streamId); try { upstream.destroy(); } catch { /* ignore */ } try { src.destroy(); } catch { /* ignore */ } }; upstream.on('error', () => teardown()); upstream.on('close', () => teardown()); src.on('error', () => teardown()); src.on('close', () => teardown()); } /** * Find the bridge-network IP of the first container of * `/`. Public so the central-side * `PilotTunnelBridge` reverse-open handler (Phase B) can dial the same * target shape when a pilot's mesh forwarder routes traffic back to * central. */ public async resolveContainerIp(target: { stack: string; service: string }): Promise { const docker = DockerController.getInstance().getDocker() as unknown as Parameters[0]; try { return await lookupContainerIp(docker, target.stack, target.service); } catch (err) { console.warn('[MeshService] container IP lookup failed:', sanitizeForLog((err as Error).message)); return null; } } /** * Pluggable reverse dialer. Set by `PilotAgent` on a pilot host or by * the proxy-mode WS handler when a `/api/mesh/proxy-tunnel` upgrade * comes in; left null on a central host with no inbound mesh tunnel. * When set, `openCrossNode` routes outbound mesh dials through the * dialer's `tcp_open_reverse` path; when unset, `openCrossNode` uses * the central-side `PilotTunnelManager.getBridge` directly. Lets the * same MeshService code work on both sides. */ private reverseDialer: ReverseMeshDialer | null = null; /** * Install or clear the reverse dialer. Supports compare-and-swap via * the optional `expected` argument so a caller (e.g., the proxy-mode * WS handler) can install on a null slot and uninstall only if its * own dialer is still the active one. Without the `expected` arg the * operation is unconditional (used by the pilot agent at boot). * * Returns true when the swap happened, false when the CAS rejected * because `expected` did not match the current dialer. */ public setReverseDialer(dialer: ReverseMeshDialer | null, expected?: ReverseMeshDialer | null): boolean { if (expected !== undefined && this.reverseDialer !== expected) return false; // Loud warn instead of silent overwrite: pilot and proxy modes are // mutually exclusive by topology, so this branch indicates a // misconfigured deployment rather than an expected race. if (expected === undefined && dialer !== null && this.reverseDialer !== null && this.reverseDialer !== dialer) { console.warn('[MeshService] reverse dialer overwritten without CAS; pilot/proxy mode race or duplicate install'); } this.reverseDialer = dialer; return true; } /** * Install (or clear) the central-namespace nodeId communicated by the * upstream central at proxy-tunnel upgrade. Called by the proxy-tunnel * WS handler; cleared on disconnect. Consumed by `handleAccept` to * dispatch cross-node aliases correctly on proxy peers. * * The caller is implicitly single-tenant: it runs only after * `setReverseDialer`'s CAS install succeeds (slot already guarded). A * second non-null install while a different non-null value is present * indicates a misconfigured deployment, so we warn loudly instead of * silently overwriting. */ public setProxyTunnelSelfCentralNodeId(nodeId: number | null): void { if ( nodeId !== null && this.proxyTunnelSelfCentralNodeId !== null && this.proxyTunnelSelfCentralNodeId !== nodeId ) { console.warn( `[MeshService] proxyTunnelSelfCentralNodeId overwritten ${this.proxyTunnelSelfCentralNodeId} -> ${nodeId}; concurrent proxy-tunnel install or misconfigured deployment`, ); } if (nodeId !== null && this.proxyTunnelSelfCentralNodeId !== nodeId) { this.logActivity({ source: 'mesh', level: 'info', type: 'mesh.proxy_tunnel.identify', message: `proxy-tunnel: this node is nodeId=${nodeId} in central's namespace`, }); } // Null-clear (tunnel teardown) is intentionally not logged: it // would double the entries on every reconnect cycle without adding // signal beyond the existing `proxy-tunnel.close` event. this.proxyTunnelSelfCentralNodeId = nodeId; } private async dialMeshTcpStream(target: MeshTarget): Promise { if (this.reverseDialer) { return this.reverseDialer.openMeshTcpStream({ nodeId: target.nodeId, stack: target.stack, service: target.service, port: target.port, }); } const ptm = PilotTunnelManager.getInstance(); // ensureBridge resolves an existing pilot tunnel, an existing // proxy-mode tunnel, or dials a fresh proxy-mode tunnel on demand. // Returns null for unreachable nodes (no api_url/api_token, scope // insufficient, remote pre-Phase-C, network error). const bridge = await ptm.ensureBridge(target.nodeId); if (!bridge) return null; return bridge.openTcpStream({ stack: target.stack, service: target.service, port: target.port }); } private async openCrossNode(target: MeshTarget, src: net.Socket): Promise { // Log every dispatch entry. Same-node logs route.resolve.ok on // its TCP `connect` event; cross-node only logs route.resolve.ok // once tcp_open_ack arrives from the agent. Without this entry // log, a stuck cross-node dial leaves zero events in the activity // buffer even though the prober's TCP handshake completed. this.logActivity({ source: 'mesh', level: 'info', type: 'route.dispatch', nodeId: target.nodeId, alias: target.alias, message: `cross-node dispatch to ${target.alias} on node ${target.nodeId}`, }); // Peer-side recovery: when this Sencho is acting as a proxy-mode peer // (mesh_centrals has a row from a prior bootstrap) and the // reverseDialer is not currently installed, the inbound bridge from // central is either cold-start (peer just rebooted) or has been torn // down (idle close, central restart). Kick the symmetric-dial path // so the peer re-opens its callback WS to central before attempting // the cross-node dispatch. // // Central instances never have a mesh_centrals row (central is not a // peer of itself), so this branch is correctly skipped on central. // Central falls straight through to dialMeshTcpStream which uses its // own PilotTunnelManager + MeshProxyTunnelDialer to reach the target // peer. Without this gate, central enters the branch on every // forward dispatch, finds no session, and destroys the inbound // socket with route.resolve.fail forward-from-peer no_session. if (!this.reverseDialer) { const { MeshCentralRegistry } = await import('./MeshCentralRegistry'); const isProxyPeer = MeshCentralRegistry.getInstance().getActive() !== null; if (isProxyPeer) { try { const { PeerToCentralMeshSessionDialer } = await import('./PeerToCentralMeshSessionDialer'); const session = await PeerToCentralMeshSessionDialer.getInstance().ensureSession(); if (!session) { this.logActivity({ source: 'mesh', level: 'warn', type: 'route.resolve.fail', nodeId: target.nodeId, alias: target.alias, message: `peer cross-node dispatch failed: no central callback session available`, details: { direction: 'forward-from-peer', reason: 'no_session' }, }); try { src.destroy(); } catch { /* ignore */ } return; } } catch (err) { this.logActivity({ source: 'mesh', level: 'warn', type: 'route.resolve.fail', nodeId: target.nodeId, alias: target.alias, message: `peer cross-node dispatch failed: bootstrap threw`, details: { direction: 'forward-from-peer', reason: 'bootstrap_threw' }, }); try { src.destroy(); } catch { /* ignore */ } return; } } } const tcpStream = await this.dialMeshTcpStream(target); if (!tcpStream) { this.logActivity({ source: 'pilot', level: 'error', type: 'tunnel.fail', nodeId: target.nodeId, alias: target.alias, message: this.reverseDialer ? `cannot open reverse mesh stream to node ${target.nodeId}` : `no mesh tunnel reachable for node ${target.nodeId}`, }); try { src.destroy(); } catch { /* ignore */ } return; } const record = this.registerActiveStream(target.alias, tcpStream.streamId); const t0 = Date.now(); // Timer guards against the agent never returning a tcp_open_ack // (broken pilot, frame dropped, dial stuck after handshake). // Without this the stream sits forever and the operator sees // nothing in the activity log between dispatch and close. let openTimer: NodeJS.Timeout | null = setTimeout(() => { openTimer = null; this.logActivity({ source: 'pilot', level: 'warn', type: 'tunnel.fail', nodeId: target.nodeId, alias: target.alias, streamId: record.streamId, message: `cross-node dial to ${target.alias} timed out waiting for tcp_open_ack`, }); try { tcpStream.destroy(); } catch { /* ignore */ } try { src.destroy(); } catch { /* ignore */ } }, PROBE_TIMEOUT_MS); const clearOpenTimer = () => { if (openTimer) { clearTimeout(openTimer); openTimer = null; } }; tcpStream.on('open', () => { clearOpenTimer(); this.logActivity({ source: 'mesh', level: 'info', type: 'route.resolve.ok', nodeId: target.nodeId, alias: target.alias, streamId: record.streamId, message: `cross-node connect to ${target.alias}`, }); this.routeLatencyMap.set(target.alias, Date.now() - t0); }); tcpStream.on('data', (chunk: Buffer) => { record.bytesIn += chunk.length; try { src.write(chunk); } catch { /* ignore */ } }); tcpStream.on('error', (err: Error) => { clearOpenTimer(); this.logActivity({ source: 'pilot', level: 'error', type: 'tunnel.fail', nodeId: target.nodeId, alias: target.alias, streamId: record.streamId, message: sanitizeForLog(err.message), }); this.activeStreams.delete(record.streamId); try { src.destroy(); } catch { /* ignore */ } }); tcpStream.on('close', () => { clearOpenTimer(); this.activeStreams.delete(record.streamId); try { src.end(); } catch { /* ignore */ } }); src.on('data', (chunk: Buffer) => { record.bytesOut += chunk.length; tcpStream.write(chunk); }); src.on('end', () => tcpStream.end()); src.on('close', () => { clearOpenTimer(); tcpStream.destroy(); }); src.on('error', () => { clearOpenTimer(); tcpStream.destroy(); }); } private registerActiveStream(alias: string, streamId?: number): ActiveStreamRecord { const id = streamId ?? -Math.floor(Math.random() * 0x7fffffff); const record: ActiveStreamRecord = { streamId: id, alias, bytesIn: 0, bytesOut: 0, openedAt: Date.now(), }; this.activeStreams.set(id, record); return record; } private onTunnelDown(nodeId: number): void { this.logActivity({ source: 'pilot', level: 'warn', type: 'tunnel.fail', nodeId, message: `pilot tunnel down for node ${nodeId}`, }); } // --- Probe / Test upstream --- public async testUpstream(alias: string, sourceNodeId: number): Promise { const target = this.lookupAliasGlobal(alias); if (!target) { return { ok: false, where: 'no_route', code: 'no_route', message: 'alias not found' }; } if (!DatabaseService.getInstance().isMeshStackEnabled(target.nodeId, target.stackName)) { return { ok: false, where: 'agent_resolve', code: 'denied', message: 'target stack not opted in' }; } if (target.nodeId !== sourceNodeId) { // Use ensureBridge so proxy-mode remotes get a bridge dialed // on demand. Pre-fix this called hasActiveTunnel + getBridge, // which only checked the pilot-tunnel slot and returned // tunnel_down for proxy-mode targets even when the regular // dialMeshTcpStream path worked. const ptm = PilotTunnelManager.getInstance(); const bridge = await ptm.ensureBridge(target.nodeId); if (!bridge) { return { ok: false, where: 'pilot_tunnel', code: 'tunnel_down', message: 'no bridge' }; } const t0 = Date.now(); const stream = bridge.openTcpStream({ stack: target.stackName, service: target.serviceName, port: target.port }); if (!stream) return { ok: false, where: 'pilot_tunnel', code: 'tunnel_down', message: 'open failed' }; return new Promise((resolve) => { const timer = setTimeout(() => { stream.destroy(); resolve({ ok: false, where: 'agent_dial', code: 'timeout', message: 'probe timeout' }); }, PROBE_TIMEOUT_MS); stream.once('open', () => { clearTimeout(timer); const latency = Date.now() - t0; this.routeLatencyMap.set(target.host, latency); stream.destroy(); this.logActivity({ source: 'mesh', level: 'info', type: 'probe.ok', alias: target.host, message: `probe ok ${latency}ms`, }); resolve({ ok: true, latencyMs: latency }); }); stream.once('error', (err: Error) => { clearTimeout(timer); const sanitized = sanitizeForLog(err.message); this.logActivity({ source: 'mesh', level: 'error', type: 'probe.fail', alias: target.host, message: sanitized, }); resolve({ ok: false, where: 'agent_dial', code: 'unreachable', message: sanitized }); }); }); } const t0 = Date.now(); return new Promise((resolve) => { const sock = net.createConnection({ host: '127.0.0.1', port: target.port }); sock.setTimeout(PROBE_TIMEOUT_MS); sock.once('connect', () => { const latency = Date.now() - t0; this.routeLatencyMap.set(target.host, latency); sock.destroy(); resolve({ ok: true, latencyMs: latency }); }); sock.once('timeout', () => { sock.destroy(); resolve({ ok: false, where: 'target_port', code: 'timeout', message: 'connect timeout' }); }); sock.once('error', (err) => { resolve({ ok: false, where: 'target_port', code: 'unreachable', message: sanitizeForLog(err.message) }); }); }); } private lookupAliasGlobal(host: string): MeshGlobalAlias | null { return this.aliasCache.get(host) || null; } // --- Diagnostics --- /** * Whether mesh CAN route to a node based on current configuration. * Distinct from "live tunnel up right now": for proxy-mode remotes * the tunnel is opened on demand, so a caller that demanded a * current tunnel would misreport every idle proxy-mode route as * `tunnel down`. Live pilot-tunnel state is surfaced separately. */ private isNodeMeshConfigured(node: ReturnType): boolean { if (!node) return false; if (node.type !== 'remote') return true; if (node.mode === 'pilot_agent') return true; if (node.mode === 'proxy') return !!node.api_url && !!node.api_token; return false; } /** * Compute the reachability classification surfaced in `MeshNodeStatus` * and consumed by the Routing tab. See `MeshReachableMode` for the * meaning of each value. Callers pass in the already-fetched node row * (and the local nodeId) so this helper is free of DB I/O when * `getStatus` iterates the fleet. */ private computeReachable(node: ReturnType, localNodeId: number): { mode: MeshReachableMode; reason: string | null } { if (!node) return { mode: 'unreachable', reason: 'unknown node' }; if (node.id === localNodeId || node.type !== 'remote') return { mode: 'local', reason: null }; if (node.mode === 'pilot_agent') return { mode: 'pilot', reason: null }; if (node.mode === 'proxy') { if (!node.api_url) return { mode: 'unreachable', reason: 'api_url not set' }; if (!node.api_token) return { mode: 'unreachable', reason: 'api token missing' }; // Recent-failure cache surfaces the last failed dial so the // operator sees a clear reason without triggering a redial // storm. const failure = MeshProxyTunnelDialer.getInstance().getRecentFailure(node.id); if (failure) { const reason = REACHABLE_REASON[failure.code] ?? failure.message ?? 'remote unreachable'; return { mode: 'unreachable', reason }; } return { mode: 'proxy', reason: null }; } return { mode: 'unreachable', reason: 'unknown node mode' }; } public async getRouteDiagnostic(alias: string): Promise { const target = this.lookupAliasGlobal(alias); const lastError = this.routeErrorMap.get(alias) || null; const lastProbeMs = this.routeLatencyMap.get(alias) ?? null; if (!target) { return { alias, target: null, pilot: { connected: false, lastSeen: null }, lastError, lastProbeMs, state: 'not authorized' }; } const node = DatabaseService.getInstance().getNode(target.nodeId); const routable = this.isNodeMeshConfigured(node); // Pilot-mode routes surface live tunnel state; proxy-mode routes // fall back to `routable` because the tunnel is opened on demand // and a quiescent state is normal. const pilotLive = node?.type === 'remote' && node.mode === 'pilot_agent' ? PilotTunnelManager.getInstance().hasActiveTunnel(target.nodeId) : routable; const lastSeen = node?.pilot_last_seen ?? null; const optedIn = DatabaseService.getInstance().isMeshStackEnabled(target.nodeId, target.stackName); let state: MeshRouteDiagnostic['state']; if (!optedIn) state = 'not authorized'; else if (!routable || !pilotLive) state = 'tunnel down'; else if (lastError && Date.now() - lastError.ts < 60_000) state = 'unreachable'; else if (lastProbeMs !== null && lastProbeMs > SLOW_PROBE_THRESHOLD_MS) state = 'degraded'; else state = 'healthy'; return { alias, target: { nodeId: target.nodeId, stack: target.stackName, service: target.serviceName, port: target.port, alias, }, pilot: { connected: pilotLive, lastSeen }, lastError, lastProbeMs, state, }; } public async getNodeDiagnostic(nodeId: number): Promise { const ptm = PilotTunnelManager.getInstance(); const bridge = ptm.getBridge(nodeId); const node = DatabaseService.getInstance().getNode(nodeId); const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); const isLocal = nodeId === localNodeId; const aliasCacheRows = Array.from(this.aliasCache.values()) .filter((a) => a.nodeId === nodeId) .map((a) => ({ host: a.host, targetNodeId: a.nodeId, port: a.port })); const now = Date.now(); const activeStreams = Array.from(this.activeStreams.values()).map((s) => ({ streamId: s.streamId, alias: s.alias, bytesIn: s.bytesIn, bytesOut: s.bytesOut, ageMs: now - s.openedAt, })); const listenerCount = isLocal ? this.forwarder.getListenerPorts().length : 0; return { nodeId, forwarder: { listening: isLocal && this.isLocalForwarderActive(), listenerCount, }, pilot: { connected: !!bridge, bufferedAmount: bridge?.getBufferedAmount() ?? 0, lastSeen: node?.pilot_last_seen ?? null, }, activeStreams, aliasCache: aliasCacheRows, }; } public async getStatus(): Promise { const db = DatabaseService.getInstance(); const nodes = db.getNodes(); const localNodeId = NodeRegistry.getInstance().getDefaultNodeId(); const localListening = this.isLocalForwarderActive(); const ptm = PilotTunnelManager.getInstance(); return nodes.map((node) => { const reach = this.computeReachable(node, localNodeId); return { nodeId: node.id, nodeName: node.name, enabled: db.getNodeMeshEnabled(node.id), localForwarderListening: node.id === localNodeId ? localListening : null, // `pilotConnected` stays at its original meaning: a pilot // tunnel is currently registered for this node. The // Routing tab now derives badge state from `reachableMode` // and reads `pilotConnected` only for the pilot-offline // sub-state. pilotConnected: node.type !== 'remote' || ptm.hasActiveTunnel(node.id), reachableMode: reach.mode, reachableReason: reach.reason, optedInStacks: db.listMeshStacks(node.id).map((s) => s.stack_name), activeStreamCount: this.activeStreams.size, }; }); } /** True when the local Sencho's forwarder is started and bound to at least one alias port. */ private isLocalForwarderActive(): boolean { return this.started && this.forwarder.getListenerPorts().length > 0; } // mintSidecarToken / verifySidecarToken / spawnSidecar / stopSidecar / // isSidecarRunning / handleSidecarResolve / sendSidecar / // attachSidecarSocket are gone: the in-process MeshForwarder replaces // the entire sidecar layer. Routing decisions happen via direct // MeshService calls — no JWT minting, no separate container, no control // WebSocket. See `docs/internal/architecture/mesh.md` for the new flow. } export type MeshErrorCode = | 'no_target' | 'port_collision' | 'denied' | 'agent_error' | 'push_failed'; export class MeshError extends Error { public readonly code: MeshErrorCode; constructor(code: MeshErrorCode, message: string) { super(message); this.code = code; } } /** * Common surface of an outbound mesh TCP stream as MeshService consumes * it. Both the central-side `PilotTunnelBridge.TcpStream` and the * pilot-side `ReverseTcpStreamHandle` (from `mesh/tcpStreamSwitchboard.ts`) implement * this shape structurally so MeshService.openCrossNode can splice bytes * against either without caring which side initiated the stream. */ export interface MeshTcpStreamLike { readonly streamId: number; write(chunk: Buffer): boolean; end(): void; destroy(): void; on(event: 'open', listener: () => void): this; on(event: 'data', listener: (chunk: Buffer) => void): this; on(event: 'error', listener: (err: Error) => void): this; on(event: 'close', listener: () => void): this; } /** * Pilot-side reverse dialer. Set by `PilotAgent` when the agent boots * (Phase B); leaves MeshService.openCrossNode able to route outbound * cross-node mesh traffic over the agent's outbound `tcp_open_reverse` * frame instead of central's `PilotTunnelManager.getBridge`. */ export interface ReverseMeshDialer { openMeshTcpStream(target: { nodeId: number; stack: string; service: string; port: number }): MeshTcpStreamLike | null; }