Reference-only secrets (SDD §6.4) meant adding a connector required editing a
file on the server and restarting the service. In practice that leads to the
token being pasted into the env-var *name* field, which fails with "environment
variable '<token>' is not set" and gives no hint what went wrong.
Add a second storage form, chosen per connector: type the secret in and it is
encrypted via ASP.NET Core data protection before it is stored. The env-var
reference stays as an equal alternative — this widens the choice rather than
replacing it. Exactly one form survives a save, so a stale secret cannot linger
and silently win; EndpointSecret.Resolve is the single resolution path.
The guarantee that matters is preserved: no plaintext in the database, so
pg_dump and JSON exports carry nothing usable. The trust boundary is stated
plainly in §6.4 — the key ring is on disk, so this protects against leaked
database content, not an attacker who already has the host, which is the same
boundary an env var has.
Details worth noting:
- Key ring defaults to /var/lib/metervault/keys, outside the app directory,
because the LXC updater republishes /opt/metervault on every update. Docker
gets a named volume. Overridable via MeterVault__DataProtectionKeyPath.
- Undecryptable ciphertext (key ring lost) falls back rather than throwing: an
ingestion worker on a timer should degrade, not crash.
- The stored secret is never sent to the browser; a blank field means
"unchanged", not "cleared".
- MQTT usernames are stored as-is — §6.4 covers tokens and passwords, and
encrypting a username would only blank the field on every edit.
- ExportService drops *_enc values: bound to the originating key ring, so
useless where an export would be restored. Expect to re-enter after a restore.
- HaConnectionTester now takes a resolved token, so the admin UI can test a
token that has been typed but not yet saved.
SDD §6.4 and §9 updated to describe both forms rather than contradict the code.
Claude-Session: https://claude.ai/code/session_01V6joyergfvVLFEizH1hJLd
8080 is a very common, collision-prone port. 8760 (hours in a year) is an uncommon default that also avoids Home Assistant's 8123. Applied across Dockerfile (ASPNETCORE_URLS/EXPOSE), compose (mapping + healthcheck), the Unraid template, README and a code comment. The METERVAULT_PORT host override still works.
Claude-Session: https://claude.ai/code/session_01Kib2MniVFbD95fkgLgBBnB
Complete the SDD §8 dashboard views that were deferred at the M5 boundary,
and fix a shipping bug that left the Docker demo empty.
Bug: "Load reference data" created meters/tank/tariffs but imported zero
readings in Docker. Root cause: sampledata/ was excluded by .dockerignore and
never copied into the build stage, so the App csproj's linked Content glob
resolved to nothing at publish time; ReferenceDataImporter then silently
skipped the missing CSVs after already writing its marker meter, leaving the
DB permanently "loaded" but empty.
- .dockerignore: stop excluding sampledata/
- Dockerfile: COPY sampledata/ into the build stage
- ReferenceDataImporter: fail-fast (validate CSVs exist before the marker
meter) and throw instead of silently skipping a missing file
- Program.cs + MeterVaultOptions: opt-in MeterVault__SeedReferenceData
(compose METERVAULT_SEED=true) for a one-command populated demo
New SDD §8 panels (read models in Infrastructure/Dashboard, Blazor pages):
- §8.4 Solar/PV (/solar): generation from GenerationCounter meters;
self-consumption / autarky % / self-consumption % / savings derived from
meters tagged total_load & grid_import via Meter.Meta role config
(MeterRoles/MeterMeta) — nothing hardcoded by name.
- §8.5 Oil/consumable (/consumables): tank level (cm→L calibrated), fill
gauge, deliveries log, burner runtime, effective L/h (fixed/empirical),
forecast-to-empty, tariff cost, monthly series.
- §8.6 Meter detail (/meters/{id}): raw readings, normalized consumption,
source status, tariff timeline, events, measured-vs-estimated markers.
- Reusable SeriesChart component; nav links; Meters list rows link to detail.
Tests: MeterMetaTests (Core, +10); DashboardRenderTests extended to assert the
three panel services compute real figures and the new routes render (108 total,
all green). Live-verified in Docker: seed imports 302 readings / 347 consumption
rows; panels render (generation 16,481 kWh, oil 3,967 L) cross-checking the DB.
Claude-Session: https://claude.ai/code/session_01Lz2RqAsnQhetqWNoCDfexK
Correctness/data:
- Fix demo cost double-count: reference importer no longer imports the Kosten Strom/Wasser
columns for categories that are metered (only Heizung), so Wasser rollup is 70€ not 140€.
- Spurious-decrease guard: only a reset/swap in the window (prevReading, thisReading] explains
a decrease — an old historical reset no longer permanently disables the guard.
- Gate swap auto-detection on MappingProfile.DetectCumulativeSwaps (flag was ignored).
- Prorate basePrice by bucket length (day/month/year); guard virtual expressions against NaN/Inf.
Concurrency/infra:
- Blazor: register a DbContextFactory; CostService/DashboardService and the read pages now use
short-lived per-operation contexts (no shared circuit DbContext); guard Trends re-entrancy.
- /events: wrap event insert + consumption recompute in one transaction (atomic); 404 (not 500)
on unknown meter.
- MQTT worker: subscribe to newly-added topics on each tick; move client cleanup into finally.
- Migrations: CREATE MATERIALIZED VIEW IF NOT EXISTS + if_not_exists on CAgg/compression/
hypertable calls (re-run-safe after a mid-migration crash).
- HA worker: prune stale poll-schedule entries; export: null dangling ImportBatchIds on restore.
API/security:
- API fail-closed by default: with no keys and AllowAnonymousApi off, /api/v1 returns 401
(protects /export and /import). New MeterVault:AllowAnonymousApi opt-in.
- Cap /readings batch at 5000; report ignored (unknown-meter) count; enums as strings in JSON.
+4 regression tests (guard window, API closed, /events 404, no demo double-count). 98 tests
green; Docker deploy re-verified healthy with the API fail-closed.
Claude-Session: https://claude.ai/code/session_01WujdMtMJPbxDpDnMeK22rr
schmidt.florian