24 Commits

Author	SHA1	Message	Date
Niklas Ye	74359c72ab	Give each team its own dead man's switches, and the UI a team to show ... The rest of #4. Two halves that belong together because they are the same sentence from opposite ends: a team decides which of its alerts are heartbeats, and the UI has to be able to say which team it is talking about. Switches were three environment variables, which made them one setting for the whole install. That was the last piece of the alerting path a team could not control: it could take its own alerts on its own key and still not say which of them were heartbeats, or how long a silence had to last. They are a row per team now, edited by an owner through PUT /api/teams/{teamID}/deadman, and the sweeper runs each team against its own matchers, timeout and severity. The environment variables become the starting point rather than the setting. Every team without a configuration is seeded from them at startup, so an upgrade keeps watching exactly what it was watching, and SeedDeadmanConfigs never overwrites -- a redeploy must not put the environment's value back over an owner's edit. A team created later watches nothing until somebody says otherwise: inheriting an install-wide heartbeat would page a new team about a source it has never heard of, and a switch nobody chose is the kind that gets muted rather than fixed. A matcher string with no alertname in it is refused at the door instead of stored. Storing it would produce a switch that watches nothing silently, which is the exact failure the feature exists to prevent. NewRouter and Sweep lose their DeadmanConfig parameter -- there is no longer one answer to hand them. The type stays, because parsing a matcher string is still parsing a matcher string. The UI side: rows in the queue carry a team badge, the filter row gains a team chip per team, and "on call now" shows one card per team. All three appear only when the viewer is in more than one team -- otherwise they are the same word repeated down a list, which is noise rather than information, and the single-team install reads exactly as it did before teams existed. Verified against a live two-team server as well as in tests: the combined queue labelled by team, the team_id filter, a heartbeat that is a heartbeat in one team and an ordinary alert in another, and a new team's switches starting empty while the upgraded team keeps the environment's. Claude-Session: https://claude.ai/code/session_01RHPj4ggeFdEjKKfm4SHbD7	2026-09-20 15:18:22 +02:00
Niklas Ye	a4fbd60441	Scope everything to a team, and route alerts by integration key ... The core of #4, and what #1 is for: terdut stops being one shared space. A team owns its incidents, alerts, schedule and integrations; a user sees exactly the teams they are in. Everything that existed moves into one Default team and every existing user becomes an owner of it, so the upgrade is a no-op for the people using it. Ingestion is the load-bearing half. An alert arrives on a team's integration key, and the key is both the credential and the routing: it says that the sender may post, and which team the alerts belong to. That also closes the unauthenticated webhook -- the old path stays for one release, deprecated and routed to the oldest team, so an upgrade does not stop delivering while somebody edits the Alertmanager config. Scoping is enforced in as few places as possible, because the failure mode is silent. serveAs loads the caller's memberships once; list queries carry `team_id = ANY(...)`; and every incident route goes through incidentIDParam, which now parses the id AND checks the team in the same call, so a new handler cannot remember the first half and forget the second. Anything in another team is 404, never 403: whether an incident exists is that team's business. Two bugs this found, both of which would have been silent: * upsertAlerts decided "is this a new occurrence" by looking up the fingerprint alone. Across teams that made team B's first alert look like a re-send of team A's, so it opened no incident at all. The lookups are keyed on (team_id, fingerprint) now, as the index is. * Every uniqueness rule was written for one tenant. Two teams watching two clusters legitimately see the same fingerprint, the same groupKey, and want somebody on call on the same day; all three constraints move to include team_id. Roles inside a team are separate from the system administrator flag: an owner configures the team, a member works its incidents, and an admin is NOT implicitly in every team -- administration is about accounts, not about reading other people's incidents. An admin can still repair a team whose owner has left, which is why requireTeamOwner lets them through. A shift can only be given to somebody in the team. Paging a person who cannot open the incident is worse than paging nobody. The UI is updated only as far as keeping it working: it loads the viewer's teams with the session and uses the first one, since nobody has a second yet. "On call now" shows every team the viewer is in, named only when there is more than one, so the common case reads exactly as before. The team switcher, badges and per-team settings pages are the next step. Breaking for API clients: the schedule endpoints moved under the team, and /api/schedule/current returns an array rather than an object or a 404. terdut-tui will need a version for that. Per-team dead-man configuration is deliberately not here. A heartbeat's incident already opens in the team whose key received it, which is the part that matters for isolation; moving the matchers out of env into per-team rows is a change to how deadman.go is configured rather than to who sees what. Claude-Session: https://claude.ai/code/session_01RHPj4ggeFdEjKKfm4SHbD7	2026-09-20 13:36:24 +02:00
Niklas Ye	1377d9005b	Add a system administrator role, and gate account management behind it ... Until now every authenticated caller could create and delete users, set anybody's password and mint anybody's API keys -- auth.go said so in a comment. Defensible with one operator and a hand-made account; not once people sign themselves up (#7), and not in a multi-tenant install (#4), where the user list is no longer everybody who works here. users.is_admin is the flag. AdminOnly gates creating and deleting users and granting the flag itself. The endpoints that are self-service for your own account and administration for somebody else's -- password, ntfy topic, API keys -- go through requireSelfOrAdmin instead, because which rule applies depends on the {id} in the path rather than on the route. Minting your own API key stays self-service. A key carries exactly the rights of the user it belongs to, so issuing one is no more than signing in again; requiring an admin for it would mean a responder cannot set up the TUI without somebody else in the room. /api/users stays readable by everybody. The queue's assignment control and the on-call schedule both have to name people, and hiding the roster from the people on it buys nothing. THE MIGRATION MAKES EVERY EXISTING USER AN ADMINISTRATOR. They already hold these powers, so nobody's access changes on upgrade: it names what is already true and leaves demotion as a deliberate act. Promoting only user 1 would silently strip the others, and could leave an install whose only administrator is an account nobody has a password for. Two guards keep an install administrable: the last administrator can be neither deleted nor demoted, and nobody can delete or demote themselves -- the likelier accident, where the only admin clears their own flag while tidying up and locks the door behind them. No UI changes: there are no account-management screens yet. models.User carries is_admin (not omitempty, so a client can tell false from an old server), which is what #5's admin page will render from.	2026-09-20 13:20:04 +02:00
Niklas Ye	dc39e3a5d3	Move the database to Postgres, before teams need the schema ... First step of #1, and it goes first for one reason: #4 adds a team_id to nearly every table, and doing that twice -- once for SQLite, once for Postgres -- is work nobody gets paid for. The teams migrations now only have to be written against one database. The ten SQLite migrations are replaced by a single Postgres baseline rather than ported one by one. They were incremental in a way that has no value on a fresh install: 004 adds columns 008 drops again, and 008's backfill rewrites data a Postgres database never had. The history stays in git; the schema they add up to is now 001_baseline.sql. Timestamps stay BIGINT unix seconds and are NOT converted to timestamptz. Everything in Go already speaks epochs, so converting would have been a second, larger change riding along inside this one. It is worth doing on its own. The JSON columns did move to jsonb, because #4 will want to filter and index on labels. Most of the port is mechanical -- 170 placeholders from ? to $1 -- but four things needed more than a search and replace: * Dynamically built WHERE clauses cannot keep their numbering straight by hand, so they hand out placeholders through sqlArgs instead. A filter can now be added or reordered without renumbering anything. * SUM(resolved_at IS NULL) was SQLite counting a boolean as 0 or 1. Postgres has no sum(boolean), and this was breaking every dead man's switch -- silently, since the sweeper only logs. Now COUNT(*) FILTER. * unixepoch() became FLOOR(EXTRACT(EPOCH FROM now()))::bigint. The FLOOR is load-bearing: a bare cast rounds half up, so a row written at .6 of a second claimed a timestamp a second in the future and disagreed with the time.Now().Unix() the Go side stamps. * The unique-violation check matched SQLite's error text. It matches SQLSTATE 23505 now, so a renamed constraint cannot turn a 409 back into a 500. Tests need a real Postgres, because there is no in-memory Postgres the way there was an in-memory SQLite. Each test gets its own schema on a shared server -- cheaper than a database each, and still isolated. TERDUT_TEST_DSN says where it is; `make test-db` starts one locally and ci.yaml runs one as a service container. An unset DSN fails the suite rather than skipping it: a run that quietly tests nothing is worse than one that does not run. TestMigration_BackfillCarriesAckAndComments is deleted along with the migrations it replayed. What it protected -- an upgrade not losing acknowledgements and comments -- now belongs to scripts/sqlite-to-postgres.go, which is build-tagged so the SQLite driver stays out of the server binary. Both are meant to be deleted once this install has migrated. The chart loses the PVC, the data volume and the python backup sidecar, and requires database.dsnSecret.name: it provisions no database and cannot guess where the credentials live, so a render without it is meant to fail. Backups move to where Postgres actually runs. The other half of that -- the postgresql CR, the k8up pg_dump annotation and the network policy -- is a change to the wrapper chart in Ryuvia/charts and is not in here. Verified rather than assumed: the gate is green with -race against Postgres 17, govulncheck and gitleaks are clean, and the migration script was run end to end against a SQLite database built at the old schema and seeded in every table. Ids survive, so incidents keep their numbers and every foreign key still points where it did; the identity sequences are moved past the copied ids, and a webhook after the migration opened incident 12 rather than colliding at 1.	2026-09-20 10:44:12 +02:00
Niklas Ye	dc3879eca6	Serve a web UI for the incident queue, built for phones ... Whoever is on call gets paged on a phone, and until now the only ways to act on a page were the notification's Acknowledge button or a terminal. Tapping the notification itself opened /api/incidents/{id}, which a browser can only answer with a 401 in JSON. The server now serves a web UI at / covering the incident queue, each incident's alerts and timeline with every action on it, who is on call, the alert feed, and changing your own password. The notification link now points at /incidents/{id} in that UI. It is embedded in the binary and has no build step: plain HTML, CSS and ES modules under internal/web/static, served with an ETag per file and a CSP that allows nothing from any other origin. That is how rd-web is built. It avoids adding a node toolchain to the Dockerfile and the pipeline for a page this size, and it keeps the page on the same origin as the API, so no CORS is needed and nothing else has to be deployed. Paths without a file extension fall back to index.html, so a deep link survives a reload. An unknown path under /api/ still gets a JSON 404 rather than the page. Signing in uses a username and password, because pasting a 64-character API key into a phone at 3am is not a sign-in flow. Users have no password until one is set through PUT /api/users/{id}/password, or optionally at bootstrap. A user without a password is exactly where they were before this commit and can only use API keys. A login sets an HttpOnly, SameSite=Lax session cookie. It lasts 30 days and slides forward while in use, so an on-call phone does not sign itself out. Only the token's hash is stored, as for API keys. The cookie needs a CSRF guard where a bearer header does not, because browsers attach cookies to requests other sites make. So cookie- authenticated requests go through Go 1.25's http.CrossOriginProtection, and bearer requests do not. A request carrying an Authorization header is judged on that header alone and never falls back to the cookie. Changing a password ends every other session of that user. Changing your own requires the current password, so a phone left signed in cannot be used to take the account over. Failed logins are counted per username and per client address. Ten failures for one username in 15 minutes refuse that username for the rest of the window, even with the right password. That makes locking somebody out possible for anyone who knows their username. It was accepted because the alternative is unlimited guessing, and during a lockout the notification's Acknowledge button and API keys keep working. The address limit reads the first X-Forwarded-For hop, since behind the gateway RemoteAddr is Envoy. It is looser, because a whole office behind one NAT shares it. The Secure flag follows TERDUT_PUBLIC_URL, since TLS terminates at the gateway and the server itself only ever sees plain HTTP. The chart already defaults that variable to https://<hostname>. Schedule editing, statistics and user management stay in terdut-tui for now. The API they use is unchanged, and bearer authentication behaves exactly as before.	2026-09-19 17:48:21 +02:00
Niklas Ye	94dec19976	Räkna en tom incidentlista som noll i stället för som ett fel ... SUM över noll rader är NULL i SQLite, inte 0. handleStatsIncidents läste de tre statusräknarna rakt in i int64, så i samma stund som filtret inte matchade någon rad föll skanningen på "converting NULL to int64 is unsupported" och hela /api/stats/incidents svarade 500. COUNT(*) ger däremot 0 utan knot, vilket är precis varför felet inte syns förrän tabellen töms — det är det enda uttrycket i satsen som klarar noll rader. Filtret är alltid på: statsFilter lägger på archived_at IS NULL (923fc8b, flyttat hit i 279ef6c). En installation som varit tyst ett tag arkiverar därmed sig själv in i felet. Det är sluttillståndet för en lugn vecka, inte ett kantfall, och klustret står i det nu. Symptomet pekade åt fel håll. terdut-tui hämtar listan och statistiken i samma uppdatering, så incidentvyn såg trasig ut medan /api/incidents svarade 200 med []. Loggen i klustret visar de två anropen bredvid varandra, det ena grönt och det andra rött. Ingen ändring i terdut-tui behövs: dess ListIncidents är oförändrad sedan 0.7.2 och skickar samma parametrar som förut. handleStatsAlerts bar samma fel och rättas likadant, innan någon hittar det på samma sätt. COALESCE i SQL i stället för sql.NullInt64 i Go, eftersom jämförelserna redan bor i satserna här (severityRankSQL, 279ef6c). mtta_seconds och mttr_seconds lämnas medvetet utan COALESCE. null betyder "inget att mäta ännu" och 0 skulle läsas som "omedelbart" — två olika påståenden, och testet från 279ef6c låser fast skillnaden. Claude-Session: https://claude.ai/code/session_01S7R4gWTz5wh5xCY4nCSJjN	2026-09-01 21:47:39 +02:00
Niklas Ye	03504b61be	gofmt: restore import grouping after the module rename ... The rename to git.ryuvia.com/niklas/... was a plain string substitution, so it left the import blocks in their old order. The new path sorts before github.com/go-chi/..., where the old one sorted after, which gofmt considers unformatted. go vet does not look at import order, so CI had nothing to say about it.	2026-08-19 21:21:33 +02:00
Niklas Ye	289eca8076	Move to Gitea: git.ryuvia.com/niklas/terdut-server ... The module path, the container image, the Helm chart and the CI pipeline all named GitHub. They now name the Gitea instance everything else already runs on. The workflows are rewritten rather than translated. Gitea's runner image is ubuntu:22.04, whose nodejs is Node 12, so no JS action runs there at all -- actions/checkout@v4 dies with a SyntaxError before it does anything. Every step is shell, checkout is a plain clone (this repo is public, so it needs no credential), and the jobs that need docker or helm run in host mode because the dind bridge a `container:` job gets cannot reach github.com or get.helm.sh. Two consequences worth naming: - upload-artifact/download-artifact are also JS actions, and there is no artifact store here, so the job that builds the binaries is the job that publishes them. Nothing is passed between jobs. - setup-qemu-action is gone with the rest, and the runner has no binfmt registration. The Dockerfile's builder stage now runs on $BUILDPLATFORM and cross-compiles from TARGETARCH instead, which is what keeps the arm64 image buildable -- and makes it native rather than emulated. The chart moves from a GitHub Pages index to an OCI artifact in Gitea's registry. Publishing stays tag-only for the reason recorded in release.yaml: a workflow triggered by the branch push cannot know the version it is about to be tagged with. The GitHub repository is left in place and untouched. Nothing pushes to it any more, but its existing release downloads and chart index keep resolving.	2026-08-19 20:39:10 +02:00
Niklas Ye	14c24f8fda	Notice when the Watchdog alert stops arriving ... Everything this server does assumes alerts arrive. If Prometheus stops evaluating, or Alertmanager cannot reach us, nothing arrives — and silence is indistinguishable from everything being fine. The cluster has shipped the alert for exactly this case all along: Watchdog is expr: vector(1), so it fires permanently and is re-sent forever, and it is worth nothing unless something downstream notices it stop. Nothing did. It arrived, opened no incident because a repeat_interval re-send is not a new occurrence, and when the monitoring stack died the sweeper quietly expired it and paged nobody. So the handling is inverted for a configurable set of alerts: receiving one opens no incident, and the absence of one does. TERDUT_DEADMAN_MATCHERS selects them as label matchers, defaulting to alertname=Watchdog. The unit of monitoring is the fingerprint rather than the alert name. Two clusters sending the same Watchdog are two independent switches, so a healthy one can never mask a dead one. Every matcher must name an alertname, which keeps the sweeper's candidate query on alerts_name_idx instead of JSON-extracting labels from every row, and leaves matching with a single implementation. A switch is dormant until its first heartbeat: a matcher nothing has ever sent opens nothing, so a fresh deploy or a restored database does not page. Resolving the incident by hand sticks, exactly as it does for an alert-backed one, so a decommissioned source is a one-time page rather than a nag; the switch re-arms only when the heartbeat comes back, and dying again is a new incident. The incident has no member alerts on purpose. Linking the heartbeat would have the settled-incident cascade close it on the very sweep that opened it, and there is no alert describing the problem anyway — the problem is that no alert arrived. What happened is on the timeline instead, and recovery is the only automatic way out. One narrow exemption in the ingest guard makes recovery possible at all. A heartbeat we declared dead is marked resolved, and the one that proves us wrong carries the unchanged startsAt of an alert that never stopped firing — so "resolution is terminal within an instance" would discard it forever and a switch could die exactly once. The exemption is scoped to resolution_source = 'deadman', which is the only resolution this server infers from silence on a timeout of its own, so nothing another writer set can be undone by a stale retry. Matched alerts are also held back from the generic staleness expiry, which would otherwise resolve a heartbeat as 'expiry' long before its own tighter deadline. The timeout points the opposite way to TERDUT_STALE_AFTER: staleness is a generous grace period around a repeat_interval you do not control, while this is a deadline you set deliberately and configure the heartbeat's route to beat. Inheriting a 4h or 12h repeat_interval gives a dead man's switch with a twelve hour fuse, so the README spells out the route the heartbeat needs.	2026-08-08 21:28:55 +02:00
Niklas Ye	e5916d522a	Let an on-call day be handed to somebody else ... A date is held by exactly one person and POST /api/schedule plain-inserts, so any date that was already taken came back 409. That made reassignment impossible through the API: the only route was to delete the entry first, and for a week that meant seven separate deletions. Worse, the reject is all-or-nothing across the request, so assigning a week where a single day happened to be taken failed entirely and placed none of the other six. The refusal itself is worth keeping. Moving a shift off the person expecting to be paged for it should not be something a plain call does by accident, so the fix is to make it possible to ask for rather than to remove the guard: "replace": true takes the dates anyway, and the flag defaults to off so every existing caller behaves exactly as before. The delete and the insert share the transaction that was already there. That matters more than the flag does — a week of free and taken days now lands as a unit, and a failure part way through leaves the rota as it was instead of with a shift deleted and nothing put back. A rota with a hole in it is worse than a rota that refused to change. One consequence worth naming: under replace a date repeated inside one request is idempotent rather than a conflict, because the second pass clears what the first wrote.	2026-08-07 14:04:11 +02:00
Niklas Ye	4224dbe96c	Record notification delivery on the incident timeline ... An incident's history went quiet after "Incident opened": nothing said that anybody had been paged, reminded, or told it resolved. Delivery lived only in the notifications outbox, which no API exposes, so when a page failed to arrive there was nothing in the product that said whether it had been sent. The notifier now writes two event types. A notified event once ntfy accepts the publish, carrying the kind in detail and the paged user in user_id — absent when the page went to the shared fallback topic, which belongs to nobody. And a notify_failed event when a notification exhausts its retries, which is the one worth having: without it a page that never landed leaves the timeline identical to one that did. Both are written from the delivery result rather than at enqueue. A queued notification is an intention, and the timeline is append-only, so claiming somebody was told before ntfy accepted it would be a lie that stays there. A failed timeline write is logged rather than returned, so it cannot make a delivered row look unsent and send the page twice. The topic is deliberately in neither: it is a shared secret with the ntfy server, and every API key can read the timeline. No migration — incident_events.type is free text, unlike notifications.kind.	2026-08-07 13:31:03 +02:00
Niklas Ye	17ee290d90	docs: the ack token is scoped, not single-use ... The handler never deletes the token: it stays valid until expires_at and is purged by the sweeper, so a second tap is an idempotent no-op rather than a rejection. Caught by pressing Acknowledge twice against the live server. What bounds the token is scope -- one incident, one action, one day -- not a use count.	2026-08-07 11:41:15 +02:00
Niklas Ye	bc285799d1	Page the on-call person when an incident opens ... An incident opened, got assigned to whoever held today's schedule entry, and then sat there silently until somebody thought to look. The schedule and the incident model were both built; nothing reached the person holding the pager. Notifications go out through ntfy, over plain HTTP with no new dependencies. Delivery is an outbox rather than an inline call: the pool is limited to a single connection, so a POST made while holding the webhook's transaction would stall every other request behind it. The webhook inserts a row and a notifier goroutine sends it within a tick, retrying with exponential backoff. Only opening an incident has to resolve a topic from scratch. Reminders and all-clears reuse whatever that first notification chose, which keeps configuration out of resolveIfSettled and gives the right rule for free: you only hear that something resolved if you were told it started. Each push carries an Acknowledge button, because the useful thing to do at 3am is stop the pager without unlocking anything. It POSTs to an unauthenticated /api/notify/ack/{token} — a notification body lives on the ntfy server and in the device cache, so a real API key must never appear in one. The token is minted per delivery, scoped to one incident and one action, and expires in a day. Reminders repeat until the incident stops being untouched. The stop conditions are the states that already mean somebody has it: acknowledged, snoozed, resolved, archived. Snooze is the mute button, so there is no separate reminder cap. Notifications sent to the fallback topic carry no Acknowledge button. The topic is shared, and a button on it would let any subscriber acknowledge as somebody else.	2026-08-07 08:51:38 +02:00
Niklas Ye	279ef6cf8b	Turn incoming alerts into incidents ... The alerts row was both Alertmanager's record and the human work queue, and the two have different owners. The webhook upsert rewrites that row on every notification; acknowledgement, comments and archiving were columns on it that the upsert happened not to touch. So an alert that resolved and re-fired days later still read as acknowledged by whoever acked the first occurrence — the ack outlived the thing it referred to. Nothing recorded transitions either: rows are mutated in place, so there was no timeline and no way to compute how long anything took. Alerts are now read-only signal records with two states, and incidents are the work item: triggered, acknowledged or resolved, with an assignee, a snooze, notes and an append-only timeline. Many alerts map to one incident, and a new occurrence opens a new incident, which is what makes a stale ack impossible rather than merely unlikely. Correlation uses Alertmanager's own groupKey. It already grouped the alerts according to the group_by routing tree the operator configured and sends the result on every webhook, where it was being discarded; adopting it means changing group_by in alertmanager.yml changes correlation here, with no second grouping scheme to configure and keep in sync. An incident opens only when an alert transitions into firing — an unseen fingerprint, a newer startsAt, or a resolved alert starting again. The unchanged notifications Alertmanager re-sends every repeat_interval are none of those. That rule is what lets manual resolution be terminal: without it, closing an incident by hand would be undone by the next re-send of an alert that never stopped firing, and the button would be a lie. Snooze covers the "not now" case instead. Incidents otherwise resolve by cascade, once every alert under them has stopped firing, whether by webhook or by expiry. New incidents are assigned to whoever holds today's schedule entry. The schedule table has existed since the first release with nothing reading it. Also here, following from the split: - Incident severity is a high-water mark over its alerts, never lowered. An incident that hit critical was a critical incident, and downgrading a live one would demote it in the queue while the work is still open. - /api/stats/incidents reports MTTA and MTTR, null rather than zero until there is something to average. Neither was computable before. - Alert archiving becomes sweeper-only housekeeping; the archive people interact with is the incident's. Breaking: the alert acknowledge, archive and comment endpoints are gone, and the alert object drops the acknowledgement fields and gains incident_id. The README maps each removed endpoint to its replacement. Migration 008 backfills an incident per existing alert, archived ones included so no comment is orphaned, carrying acknowledgements across and turning comments into timeline notes. Both documented alert contracts are untouched: received_at still advances on every accepted payload, re-sends included, and resolution_source still says how much to trust ends_at. The upsert is byte-for-byte what it was, now running inside the ingest transaction.	2026-07-30 17:02:13 +02:00
Niklas Ye	a602ff3efc	Document received_at and resolution_source as public contract ... The API reference listed endpoints but never the alert object's fields, so two of them were load-bearing for clients while being described nowhere. received_at appeared only in passing, as a stats filter; resolution_source only inside the stale-expiry prose. Both carry meaning a client cannot derive on its own. starts_at comes from Prometheus and never changes for an alert instance, so received_at is the only signal that a firing alert is still being refreshed — it advances on every accepted webhook, including the unchanged notifications Alertmanager re-sends every repeat_interval. resolution_source then says how much to trust ends_at: under 'alertmanager' it is an end time somebody reported, but under 'expiry' nothing ever reported one, so it is either a stale watermark or the sweep timestamp, and only an upper bound. README gains an alert object field table plus a contract section for each, including the nullability rules and the advice to tolerate unrecognised resolution_source values. The field comments in models.Alert now say these are public API rather than ingest details, and the upsert carries a note at the received_at line, which is where a regression would be introduced. Three tests lock the newly documented behaviour, none of which was covered before — the whole suite passed with the received_at bump deleted from the upsert, because the expiry tests only ever set that column via SQL: - a re-send advances received_at and leaves starts_at alone - a discarded out-of-order retry does not count as a heartbeat - an expiry resolve preserves a reported ends_at watermark and stamps sweep time only when none was known	2026-07-30 09:02:44 +02:00
Niklas Ye	42e846f876	Expire stale firing alerts ... A resolved webhook was the only path out of the firing state, so a notification that was dropped, silenced, or lost to a restart pinned an alert as firing forever — Prometheus showed it resolved while terdut-server kept listing it. The archiver only ever touched resolved alerts, and both the list and stats queries compared status with plain equality, so a stale row was indistinguishable from a live one. A sweeper pass now resolves firing alerts on either of two signals: the ends_at watermark Alertmanager sets on outgoing firing notifications has passed (plus a grace period for clock skew), or no webhook has refreshed the alert within TERDUT_STALE_AFTER (default 6h, above Alertmanager's 4h repeat_interval). Such alerts get resolution_source = 'expiry', distinguishing them from a real 'alertmanager' resolve. Two related webhook bugs fixed alongside: - The upsert had no ordering guard, so a retried firing notification arriving after the resolved one resurrected the alert. Payloads for an older alert instance are now discarded: a stale retry carries the same startsAt, a genuine re-fire a newer one. - archived_at was never cleared on re-fire, leaving a re-fired alert archived and invisible in the default list. Stats now exclude archived alerts to match the default list view; this lowers historical firing/resolved totals. The chart exposes both sweeper durations via sweeper.staleAfter and sweeper.archiveAfter.	2026-07-28 11:49:39 +02:00
Niklas Ye	debc4bf78c	Add alert archiving ... Alerts can be manually archived (POST /api/alerts/{id}/archive) or unarchived (DELETE /api/alerts/{id}/archive). A background goroutine auto-archives resolved alerts older than TERDUT_ARCHIVE_AFTER (default 7d). GET /api/alerts hides archived alerts by default; ?archived=true shows them.	2026-05-22 13:22:45 +02:00
Niklas Ye	17f09558cb	Stage 7: Dockerfile, integration tests, updated README ... Dockerfile: - Multi-stage build (golang:1.25-alpine → scratch) - CGO_ENABLED=0, static binary, stripped with -ldflags="-w -s" (~11 MB) Tests (13 cases, internal/api/api_test.go): - Auth middleware: missing token, invalid token, valid token - Bootstrap idempotency (second call → 403) - Alert upsert: same fingerprint updates row; different fingerprints add rows - Acknowledge: set and clear, verified via GET - Comment ownership: only author can delete own comment (404 for others) - Schedule conflict: duplicate date → 409; multi-date rollback on partial conflict - Stats: totals, by-hour returns 24 slots, by-day returns 7 slots README: quick start, Docker, env vars, Alertmanager config, full API reference	2026-05-20 22:35:26 +02:00
Niklas Ye	923fc8bf9c	Stage 6: alert statistics endpoints ... - GET /api/stats/alerts — total/firing/resolved counts - GET /api/stats/alerts/top — most frequent alert names (?limit, default 10) - GET /api/stats/alerts/by-hour — counts for all 24 hours (zeros filled in) - GET /api/stats/alerts/by-day — counts for all 7 days with names (zeros filled in) - All endpoints accept optional ?from/?to (YYYY-MM-DD) to filter by received_at	2026-05-20 22:31:18 +02:00
Niklas Ye	f8f209dcba	Stage 5: on-call schedule ... - Migration 005: schedule_entries table (date TEXT UNIQUE, one person per day) - POST /api/schedule — assign user to one or more dates in a single transaction; any date conflict rejects the whole request (409) - GET /api/schedule — list all entries ordered by date, optional ?from/?to - GET /api/schedule/current — today's on-call user (UTC date), 404 if none - DELETE /api/schedule/{id} — remove an entry (204)	2026-05-20 22:28:23 +02:00
Niklas Ye	c3348a410a	Stage 4: alert acknowledgement and comments ... - Migration 004: acknowledged_by/acknowledged_at columns on alerts, alert_comments table (FK cascade on delete) - POST /api/alerts/{id}/acknowledge — stamps authed user + timestamp, returns updated alert with acknowledged_by username - DELETE /api/alerts/{id}/acknowledge — clears ack (204) - GET /api/alerts/{id}/comments — list in chronological order - POST /api/alerts/{id}/comments — add comment (returns 201) - DELETE /api/alerts/{id}/comments/{commentID} — own comments only (204) - All alert queries now LEFT JOIN users for ack username	2026-05-20 21:57:11 +02:00
Niklas Ye	9b4ca1482f	Stage 3: Alertmanager webhook ingestion and alert query API ... - Migration 003: alerts table with fingerprint UNIQUE, JSON label/annotation columns, nullable ends_at, and indexed status/name/received_at - POST /api/alertmanager/webhook — upserts each alert by fingerprint; zero endsAt ("0001-01-01") stored as NULL (still firing) - GET /api/alerts — filtered list (?status, ?name, ?from, ?to, ?limit) - GET /api/alerts/{id} — single alert lookup	2026-05-20 21:54:17 +02:00
Niklas Ye	7c3c28b23c	Stage 2: users, API key auth, bootstrap endpoint ... - Migration 002: users and api_keys tables (Unix timestamps, FK cascade) - POST /api/bootstrap — creates first user + key when DB is empty - POST/GET/DELETE /api/users — user CRUD - POST/DELETE /api/users/{id}/api-keys — key issuance and revocation - AuthMiddleware: SHA-256 bearer token lookup, last_used_at tracking - Raw key returned once on creation; only SHA-256 hash stored	2026-05-20 21:51:09 +02:00
Niklas Ye	0387e1e017	Stage 1: project skeleton, SQLite, migrations, HTTP server ... - go mod init with chi, modernc.org/sqlite, golang.org/x/crypto - Custom embedded migration runner (no CGO dependency) - Config from TERDUT_ADDR / TERDUT_DB_PATH env vars - chi router with /healthz endpoint - Graceful shutdown on SIGINT/SIGTERM	2026-05-20 21:41:40 +02:00