Each alert carries a generatorURL pointing at the Prometheus rule that fired
it. The server now parses that link, queries the same Prometheus for the
rule's expression and draws it under the alert, with the current value
beside it. The browser never talks to Prometheus, so the CSP stays at
connect-src 'self'.
The URL comes out of a webhook payload, so whoever holds an integration key
chooses it. Querying it is therefore opt-in and bounded by an allowlist,
TERDUT_PROMETHEUS_ALLOWED_HOSTS (names, "*" as one label, a leading "**" as
several, IPs, CIDRs). The check runs on the address the dialer is about to
use, a name that resolves to loopback or link-local is refused even when it
matches, and redirects and proxy variables are ignored.
A worker takes a snapshot when an incident opens and another when it
closes, so the graph outlives Prometheus' retention. It finds its work in
the database rather than being triggered from the webhook, so ingestion is
untouched and a restart loses nothing. While an incident is open the
metrics endpoint also queries live, cached for 15 seconds.
The rule expression keeps its threshold, so Prometheus returns data only
while the alert condition holds; "no data" for the current value means the
condition cleared. Stripping the threshold needs a PromQL parser and is left
out.
Claude-Session: https://claude.ai/code/session_016mBLURvJoMuUEr9cB2RpUN
- TERDUT_OPERATOR_KEY creates or re-keys the instance-scoped service account
"terdut-operator" at every start, so terdut-operator needs no bootstrap
handshake. An instance-scoped account now acts as owner of every team's
configuration, but is not a member of any team.
- POST /api/teams takes an external_id (instance service accounts only) and
is idempotent on it, so automation finds its own team again after a crash
instead of adopting by display name. GET /api/teams?name= is removed.
- Integration and dead man's switch names are unique per team (409). The
escalation PUT accepts usernames and resolves them itself.
- The 18 migrations are squashed into 001_schema.sql, with no Default team.
TERDUT_DEADMAN_* and the env seeding of switches are removed: teams carry
their own. Existing development databases must be recreated.
Security and robustness:
- GET /api/users no longer returns other people's email or ntfy topic to
non-admins.
- The access log records the route pattern, so integration keys and ack
tokens in the path are not written to the log. Server errors are logged.
- Rate limits take the client address TERDUT_TRUSTED_PROXIES hops from the
right of X-Forwarded-For instead of trusting the first, forgeable entry.
- /api/bootstrap runs in a transaction under an advisory lock, so two
concurrent calls cannot both create an administrator.
- API key last_used_at is written at most every five minutes.
Cleanup: remove GET /api/incidents/{id}/alerts, unused exports, SQLite
remnants in comments and config.
Claude-Session: https://claude.ai/code/session_016mBLURvJoMuUEr9cB2RpUN
Niklas Ye