# Changelog

All notable changes to Manage. Breaking changes are marked with **BREAKING**.

## [Unreleased]

### Added — Direct Prometheus charting

- **Prometheus is now the direct source for in-app charts.** New widget kinds
  on the `prometheus` service: `chart` (multi-series line chart via recharts,
  backed by `/api/v1/query_range`), `gauge` (instant scalar with configurable
  threshold bands), and `mean` (client-side average over a time window).

### **BREAKING** — Grafana service type removed

- The `grafana` service type, Grafana link widget, Grafana chart widget, and
  `GET /api/monitoring/grafana-status` endpoint were **removed**. Manage now
  queries Prometheus directly for all chart data.
- **Migration:** Delete any existing Grafana service instances and create
  Prometheus service instances instead (pointing at your Prometheus URL). Any
  configured `grafana/chart` widgets must be recreated as `prometheus/chart`
  widgets. Grafana link widgets are gone — use Prometheus chart/metric widgets
  instead.

### Added — Observability service registry

- **Alertmanager is now a service type.** Configure Alertmanager, Grafana, and
  Prometheus instances in the UI on the Services page; all three are first-class
  service-registry entries with dashboard widgets (`active_alerts`, Grafana link,
  Prometheus metric).
- New monitoring endpoints resolve the configured service instance and probe its
  health: `GET /api/monitoring/grafana-status`, `/prometheus-status`. The
  `/alerts` and `/alertmanager-status` endpoints now take an optional
  `service_id` and pick the first enabled alertmanager instance by default.
- The Observability page discovers Grafana/Prometheus/Alertmanager from the
  registry and renders health cards; the dashboard `active_alerts` widget sums
  firing alerts by severity.

### Changed — Observability is now external only

- **Removed** all observability services from `docker-compose.yml` and
  `docker-compose.dev.yml`. They now deploy **only** the backend and frontend.
  The `monitoring` network and the `prometheus`/`loki`/`alloy`/`grafana`/
  `alertmanager`/`node-exporter` services and their named volumes were deleted,
  and the `GRAFANA_APP_HOST` Traefik rule was removed.
- Manage now connects to **existing** Grafana/Prometheus/Alertmanager instances
  and never ships its own stack. The previous in-compose stack is preserved as
  an optional, deploy-it-yourself example in `docker-compose.observability.yml`
  (config under `monitoring/`, documented in `docs/observability-runbooks.md`).
- Removed the now-orphaned combined `monitoring/prometheus/prometheus.yml`; the
  standalone stack uses `monitoring/prometheus/prometheus.standalone.yml`.
- Removed the Prometheus file-SD bridge (`PROMETHEUS_FILE_SD_DIR` + the
  `write_prometheus_targets` file writer). External Prometheus instances now
  consume node-exporter targets via `http_sd_configs` against
  `GET /api/monitoring/prometheus-targets`. The webhook receiver is log-only.

### **BREAKING**

- Observability is configured entirely via the service registry; the backend
  `alertmanager_url`/`alertmanager_webhook_url` and frontend
  `VITE_GRAFANA_URL`/`VITE_PROMETHEUS_URL` environment variables, plus
  `PROMETHEUS_FILE_SD_DIR`, were **removed**. Re-create your Alertmanager /
  Grafana / Prometheus instances on the Services page after upgrading. The only
  observability env var remaining is `PROMETHEUS_ENABLED` (toggles Manage's own
  `/metrics` endpoint).

### Added — Service registry

- Runtime **service registry** persisted in the backend SQLite database. External
  services (Grafana, Prometheus, Jellyfin, Nextcloud, SSH task runner) are now
  configured in the app instead of via environment variables.
- Services page (`/services`) to create, list, and delete service instances.
- Service detail pages (`/services/:serviceType/:serviceId`) to edit name/enabled
  state, rotate secrets, and view the widgets a service provides.
- Service definitions live as Pydantic modules in `backend/.../integrations/`,
  each declaring its config schema, secret fields, and widget kinds.
- Multi-instance support: multiple Grafana/Jellyfin/etc. instances per type.
- SSH task runner service records run history in a new `service_task_runs`
  table, shown on the runner's service page.

### Changed

- Dashboard widgets are now **service-bound** (reference a service instance +
  widget kind) or **built-in** (backups, static text). The "Add widget" flow is
  pick-service → pick-widget-kind → configure.
- Deleting a service cascade-deletes widgets that reference it.

### Security

- Service secrets (API keys, tokens, passphrases) are **encrypted at rest** with
  Fernet.

### **BREAKING**

- Saved Actions (server tasks) now target `ssh_tasks` service instances instead
  of monitoring machines. The `default_machine_id` field on saved tasks was
  replaced with `default_service_id`; the legacy `saved_task_runs` table was
  dropped and run history now lives in `service_task_runs`. Re-create SSH task
  runner services on the Services page and re-link saved actions after
  upgrading.
- **`MANAGE_ENCRYPTION_KEY` is now required** to start the backend. Generate one
  with:

  ```bash
  python -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"
  ```

- The `GRAFANA_URL` and `PROMETHEUS_URL` backend environment variables were
  removed; Grafana/Prometheus URLs now live on service records configured in the
  UI. Re-create them on the Services page after upgrading.
- The legacy widget/addon-pages model (`/addons/:addonId`,
  `/api/widgets/types`, `/api/widgets/sources`) was removed in favor of the
  service registry.
- Default dashboard widget seeding was removed; a fresh install starts with an
  empty dashboard. Add widgets from the dashboard's edit dialog after
  configuring services.

### Notes / follow-ups

- ~~Machine-level Jellyfin/Jellyseerr app config still powers the Media/Users/Files
  pages. Migrating those onto the service registry is a separate follow-up change.~~
  **Done (2026-06-23):** Jellyfin is no longer a machine service, and the dead
  machine-level `media_root`/`path_prefix` fields were removed. See the
  Jellyfin migration entry in `docs/REQUIREMENTS.md`.

## Follow-up #2 — remove dead machine `media_root`/`path_prefix` + Jellyfin service

Completes the Jellyfin migration onto the service registry. Jellyfin is no
longer a machine `services` tag (`DEFAULT_SERVICES` is now `["monitoring",
"files"]`), and the dead machine-level `media_root`/`path_prefix` fields were
removed from the settings store, `MonitoringMachineInput`, frontend types, and
the Settings UI. Jellyfin is configured exclusively as a service-registry
instance. The global `REMOTE_MEDIA_ROOT`/`REMOTE_PATH_PREFIX` config properties
and `path_utils.py` remain (files/media-index still use them for Jellyfin→SSH
path resolution). Existing DB rows may still carry these keys in `config_json`;
they are inert and get dropped on the next machine save.

## Follow-up #1 — remove dead machine Jellyfin/Jellyseerr fields

With Jellyfin/Jellyseerr now resolved from the service registry, the machine-level
Jellyfin/Jellyseerr fields are dead config. Removed from `dependencies.py` (dead
`_jellyseerr_client_for`; `_resolve_machine` simplified to SSH-only),
`services/settings_store.py`, `routers/settings.py` (`MachineInput`), frontend
types, the `Settings.tsx` form, and frontend test fixtures. Existing DB rows may
still carry these keys in `config_json`; they are inert and get dropped on the
next machine save. No data migration required.
