On a fresh deploy with no Jellyfin service configured yet,
get_jellyfin_client (and get_user_id / get_ssh_client) raised a plain
RuntimeError, which bubbled up as a 500 traceback on every
Jellyfin-dependent route (dashboard counts/libraries/activity, media,
users). Convert those RuntimeErrors to HTTPException(503) with a clear
detail message so FastAPI returns a clean 503 JSON response instead of
a 500, and the frontend can render a not-configured state.
- dependencies.py: get_jellyfin_client (no service / missing creds),
get_user_id (no users discovered), and get_ssh_client (no SSH machine
+ no legacy key path) now raise HTTPException(503, detail=...).
- tests/test_api.py: added
TestDashboard.test_jellyfin_endpoints_return_503_when_not_configured
covering /api/dashboard/counts and /activity.
ruff clean; 240 backend tests pass.
Slice 4 of observability-service-registry. Removes the shared-file
Prometheus bridge; external Prometheus now consumes node-exporter targets
via http_sd_configs against GET /api/monitoring/prometheus-targets.
- services/targets.py: removed write_prometheus_targets() (the file
writer) and its json/Path/get_settings imports; updated module docstring.
build_node_exporter_targets() is unchanged and still powers the HTTP
endpoint.
- main.py: removed the startup write_prometheus_targets call.
- routers/settings.py: removed the _write_prometheus_targets helper and
its three post machine create/update/delete call sites + the now-unused
targets import.
- config.py: removed the prometheus_file_sd_dir field.
- docker-compose.yml / docker-compose.dev.yml: removed the
PROMETHEUS_FILE_SD_DIR backend env var.
- tests: removed TestWritePrometheusTargets + the write_prometheus_targets
import in test_targets.py; rewrote the two TestSettingsMachines tests to
assert machines appear/disappear from /api/monitoring/prometheus-targets
(the surviving HTTP path) instead of the removed file-writer side effect.
ruff clean; 239 backend tests pass.
Slice 2 of observability-service-registry. The monitoring router resolves
observability components from the service registry instead of env vars.
- routers/monitoring.py: removed _alertmanager_client/_webhook_client env
readers + the get_settings import. Added _resolve_service_record(store,
service_type, service_id?) -> ServiceRecord|None (requested instance with
type+enabled checks, else first enabled instance), plus _base_url/_timeout/
_auth_headers (Bearer from api_key)/_status_response helpers.
- /alerts + /alertmanager-status now take service_id? + Depends(store),
resolve an alertmanager service, return graceful not-configured/
unreachable payloads including service_id/name; status down-branches now
include peers:[] + error (fixes prior type drift).
- NEW /grafana-status (probes /api/health) and /prometheus-status (probes
/-/healthy then /api/v1/status/buildinfo) returning
{up,version,service_id,name,error}.
- Webhook receiver is now log-only (dropped the outbound
ALERTMANAGER_WEBHOOK_URL forward).
- tests: rewrote TestAlertmanager + TestAlertmanagerWebhook to mock
_resolve_service_record/requests.get (not-configured via empty registry);
added TestGrafanaStatus/TestPrometheusStatus and a TestResolveServiceRecord
unit class covering service_id match/type-mismatch/disabled and first-
enabled/none-enabled paths.
Orphaned config fields alertmanager_url/alertmanager_webhook_url and the
env-var removal land in Slice 5. ruff clean; 240 backend tests pass.
Reviewed fresh-context (read-only): no blockers.
Manage now connects to existing Grafana/Prometheus/Alertmanager instances
and never deploys its own stack.
- docker-compose.yml / docker-compose.dev.yml: removed prometheus, loki,
alloy, grafana, alertmanager, node-exporter services, the monitoring
network, and observability named volumes; they now ship only backend +
frontend. Dev frontend now joins the web network so the Vite dev proxy
can reach the backend.
- backend: alertmanager_url default is now empty; /api/monitoring/alerts
and /alertmanager-status return graceful "not configured" responses
when ALERTMANAGER_URL is unset. Added not-configured tests.
- docker-compose.observability.yml: kept as the optional standalone
example; header clarifies Manage does not deploy it.
- Removed orphaned combined monitoring/prometheus/prometheus.yml
(standalone stack uses prometheus.standalone.yml).
- Docs (README, REQUIREMENTS decision log, monitoring-logging-design,
observability-runbooks, context.md, MIGRATION_PLAN, frontend/README,
CHANGELOG) updated to the connect-to-existing model.
VITE_GRAFANA_URL / VITE_PROMETHEUS_URL remain as optional frontend
deep-link overrides. .env.example still needs a manual update (safety
policy blocks assistant edits): set ALERTMANAGER_URL empty/optional and
move standalone-only vars out of the root file.
The 2026-06-16/17 observability update externalised metrics to
Prometheus + node_exporter + Grafana, but the legacy Manage-side
SSH-scraping monitor was never removed. It duplicated the new stack,
ran SSH df on every machine every 300s, and fed nothing (its UI was
deleted in e2ad731). This slice decommissions the duplication.
Removed (backend):
- services/monitoring_poller.py (MonitoringPoller) — entire file
- services/monitoring_actions.py (disk_space, run_machine_operation,
poll_machine_snapshot, build_machine_client) — entire file;
run_machine_operation had only 2 callers (the poller + /disk), both gone
- tests/test_monitoring_actions.py
- endpoints: POST /api/monitoring/poller, GET /machines/{id}/actions,
GET /disk (and the now-dead _resolve_machine helper)
- lifespan wiring (main.py), dependency wrapper (dependencies.py),
poller.start()/kick() from machine save (routers/settings.py)
- SettingsStore: monitoring_machine_actions table CREATE + 2 indexes +
record/list/prune_machine_actions methods; DROP TABLE IF EXISTS on
startup cleans existing DBs (user-approved)
- config knobs: monitoring_poll_interval_seconds,
monitoring_poll_initial_delay_seconds, monitoring_action_retention_days
- test_api.py: TestMonitoring._ensure_machine + test_disk
Kept (fits the new model): /machines, /prometheus-targets, /alerts,
/alertmanager-status, /alertmanager-webhook; the disk_usage JOB template
(manual on-demand, not monitoring); node_exporter_* machine fields
(they point Prometheus at the right host).
Gate: backend pytest 173 passed; ruff clean.
Developer
alex