> ## Documentation Index > Fetch the complete documentation index at: https://docs.kombify.io/llms.txt > Use this file to discover all available pages before exploring further. # Project filesystem growth from observed storage gauges > Read-only, tenant-scoped projection of node_disk_used_bytes with contemporaneous node_disk_total_bytes or used plus free bytes. The latter is effective usable capacity, not physical disk capacity. Uses a 14-day window with hourly query evaluation, retaining actual source observation times and deduplicating repeated lookback values. Counts describe hourly sampled observations, not all ingested samples; sparse observations outside the backend lookback may be absent. No interpolation or per-service storage attribution is performed. Separate origin/source streams remain separate resources and are never summed. Guard OTLP times describe Guard collection, not original OTLP point time. Unknown capacity, stale/inadequate history and inconsistent measurements return an explicit state without an exhaustion estimate. Exhaustion is a growth scenario range measured from the latest observation, not a statistical confidence interval. Both bounded queries share a timeout. ## OpenAPI ````yaml /techstack/reference/api/openapi.yaml get /api/v1/monitor/storage-forecast openapi: 3.1.0 info: title: kombify-TechStack API description: > REST API for kombify-TechStack -- the hybrid cloud control plane for homelabs. kombify-TechStack manages infrastructure through a spec-driven architecture: validate YAML specs via CUE, generate OpenTofu configurations, and manage nodes through a gRPC agent protocol. ## Authentication Authenticated endpoints accept an OIDC/JWKS bearer token or an API key where documented. Self-hosted TechStack defaults to Pocket ID as identity provider. SaaS routes enter through the edge with Auth0 as the platform identity provider. PocketBase session exchange remains legacy migration compatibility only. ## Response Format **Success:** `{ "data": , "meta": { "total": int, "page": int, "per_page": int } }` **Error:** `{ "error": { "code": "", "message": "...", "details": } }` ## Pagination List endpoints accept `page` (default: 1) and `per_page` (default: 20, max: 100) query parameters. version: 1.0.0 contact: name: kombify url: https://kombify.io license: name: Apache-2.0 AND GPL-3.0 url: https://github.com/KombiverseLabs/kombify-TechStack/blob/main/LICENSE servers: - url: https://api.kombify.io/v1/techstack description: >- Production canonical (via Cloudflare edge gateway, strip-prefix). Clients MUST use this projection. The Gateway strips /v1/techstack and re-adds /api/v1 at the origin, so it resolves the /api/v1/* paths below cleanly. - url: http://localhost:5260 description: Local development - url: https://techstack.kombify.io description: Production (direct, no Gateway prefix) - url: https://api.kombify.io/v1/orchestrator description: >- Legacy StackKit-Orchestrator projection of the same origin. RETAINED for backward compatibility with existing consumers only. Do NOT use for mobile or new clients: combined with the /api/v1/* paths it double-resolves (yielding /v1/orchestrator/api/v1/...). Prefer /v1/techstack. security: - bearerAuth: [] tags: - name: Health description: Health checks and service info (no auth required) - name: Instance description: Local instance identity and enrollment metadata - name: Stacks description: Stack lifecycle management (create, provision, deploy, destroy) - name: Stacks - Specs description: Access persisted specification chain (intent, requirements, unified) - name: Stacks - Import/Export description: Import and export StackKits stack-spec.yaml configurations - name: Stacks - Drift description: Infrastructure drift detection and resolution - name: Unifier description: Spec validation, analysis, unification, and IaC generation pipeline - name: StackKits description: Infrastructure template catalog - name: Add-ons description: Add-on detection and registry - name: Workers description: Worker node registration and management - name: Servers description: Canonical server lifecycle, connection, and health state - name: Inventory description: >- Owner-scoped sanitized server and service read models for UI, API, and MCP clients - name: Pre-Checks description: Pre-deployment hardware and software validation - name: Agents description: Connected gRPC agent management and commands - name: Jobs description: Background job monitoring and SSE streaming - name: Discovery description: Network device discovery and SSH testing - name: Features description: Feature flags (read-only; managed centrally via the kombify Admin API) - name: Monthly Runtime description: Provider-free user API for subscription-backed stack runtime control - name: Runtime description: Recent runtime/deploy logs (job/deploy progress + container tail) - name: Wallet description: >- Redacted recovery-item wallet with biometric/platform-reauth-gated reveal. List responses strip secret/totp; reveal requires a fresh trusted-reauth HMAC proof (5-minute window) and is audited server-side. - name: Trust description: Pairing tokens for worker enrollment - name: Client Binding description: >- Short-lived HTTPS pairing for a second client and normal OIDC account handoff - name: Tunnel description: Cloudflare tunnel management for NAT traversal - name: Backups description: Database backup management (admin only) - name: Auth description: Authentication mode and SSO configuration - name: Metrics description: Prometheus-compatible instance metrics for admin/infra scrapers - name: Internal description: >- Internal SaaS-only APIs, including servicecall-protected executor contracts paths: /api/v1/monitor/storage-forecast: get: tags: - Metrics summary: Project filesystem growth from observed storage gauges description: > Read-only, tenant-scoped projection of node_disk_used_bytes with contemporaneous node_disk_total_bytes or used plus free bytes. The latter is effective usable capacity, not physical disk capacity. Uses a 14-day window with hourly query evaluation, retaining actual source observation times and deduplicating repeated lookback values. Counts describe hourly sampled observations, not all ingested samples; sparse observations outside the backend lookback may be absent. No interpolation or per-service storage attribution is performed. Separate origin/source streams remain separate resources and are never summed. Guard OTLP times describe Guard collection, not original OTLP point time. Unknown capacity, stale/inadequate history and inconsistent measurements return an explicit state without an exhaustion estimate. Exhaustion is a growth scenario range measured from the latest observation, not a statistical confidence interval. Both bounded queries share a timeout. operationId: getMonitorStorageForecast parameters: - name: node_id in: query schema: type: string maxLength: 128 - name: server_id in: query schema: type: string maxLength: 128 - name: agent_id in: query schema: type: string maxLength: 128 responses: '200': description: Observed filesystem forecasts, bounded to 384 metric streams content: application/json: schema: type: object required: - data properties: data: $ref: '#/components/schemas/StorageForecastResponse' meta: $ref: '#/components/schemas/ResponseMeta' '400': description: Invalid identity filter '401': description: Authentication required '403': description: Tenant scope required '503': description: Query unavailable, unsupported, or over bounded result limits components: schemas: StorageForecastResponse: type: object required: - generated_at - window_start - window_end - resources properties: generated_at: type: string format: date-time window_start: type: string format: date-time window_end: type: string format: date-time resources: type: array maxItems: 384 items: type: object required: - id - labels - forecast properties: id: type: string labels: type: object additionalProperties: type: string forecast: $ref: '#/components/schemas/StorageForecast' ResponseMeta: type: object properties: total: type: integer page: type: integer per_page: type: integer managed_runtime_inventory_complete: type: boolean description: >- True only when the managed RuntimeLease authority was configured and read successfully for this inventory response. worker_inventory_sha256: type: string pattern: ^[0-9a-f]{64}$ description: >- Stable digest of the complete worker identity, attachment, freshness, and managed RuntimeLease authority snapshot used for pagination. managed_runtime_active_lease_ids: type: array items: type: string description: >- Canonically sorted IDs of visible managed RuntimeLeases classified as active for inventory and cleanup. This visibility projection is not capacity reservation or release authority. managed_runtime_inactive_lease_ids: type: array items: type: string description: >- Canonically sorted IDs of visible managed RuntimeLeases classified as cancelled or archived for inventory and cleanup. Inactive state does not prove provider absence or release managed-server capacity. managed_runtime_lease_generation_digests: type: array items: type: object required: - lease_id - resource_generation_digest properties: lease_id: type: string resource_generation_digest: type: string pattern: ^[0-9a-f]{64}$ description: >- Canonically sorted opaque bindings from each visible managed RuntimeLease ID to its exact provider-resource generation. Missing coverage makes destructive inventory proof invalid while leaving ordinary dashboard inventory readable. managed_runtime_duplicate_lease_ids: type: array items: type: string description: >- Managed RuntimeLease IDs represented by multiple persisted worker rows before UI projection deduplication; must be empty for destructive inventory proof. managed_runtime_attachment_conflict_lease_ids: type: array items: type: string description: >- Canonically sorted caller-visible managed RuntimeLease IDs with a conflicting tenant-wide worker attachment; must be empty for destructive inventory proof and never exposes foreign private lease or worker details. StorageForecast: type: object required: - state - notes - sample_count - bucket_count - horizon_days properties: state: type: string enum: - insufficient_data - capacity_reached - growing - flat - shrinking - beyond_horizon reason: type: string notes: type: array items: type: string used_bytes: type: number minimum: 0 capacity_bytes: type: number exclusiveMinimum: 0 free_bytes: type: number minimum: 0 latest_at: type: string format: date-time observed_from: type: string format: date-time observed_to: type: string format: date-time sample_count: type: integer minimum: 0 bucket_count: type: integer minimum: 0 growth_bytes_per_day: type: number growth_low_bytes_per_day: type: number growth_high_bytes_per_day: type: number exhaustion: type: object required: - earliest_days properties: earliest_days: type: number minimum: 0 latest_days: type: number minimum: 0 horizon_days: type: number minimum: 0 capacity_changed_at: type: string format: date-time securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: >- OIDC/JWKS bearer token. Self-hosted defaults to Pocket ID; SaaS uses Auth0 through the edge. PocketBase JWT is legacy migration compatibility only. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.