Niklas Ye 7f439605c4
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DESIGN.md §4.1/§6: fix the bootstrap self-registration deadlock
Traced the actual flow against terdut-server's real source before writing
any Stage 1 controller code, rather than trusting this section's own prior
description of it:

- internal/api/middleware.go's AuthMiddleware hard-rejects with 401 any
  request carrying neither a Bearer token nor a session cookie, before
  handleListServiceAccounts' own (more permissive) internal check ever
  runs. So "on 403, self-lookup via GET /api/service-accounts?name=" --
  this section's described fallback -- cannot work unauthenticated; an
  earlier draft of this section assumed otherwise.
- That only actually matters in the rare case where this TerdutServer's
  own controller loses the /api/bootstrap race... except Stage 1's own
  setup (ROADMAP.md) guarantees it loses every time: terdut-server is
  deployed via its existing chart, which runs its own bootstrap Job,
  before the TerdutServer CR or its controller exist at all. The
  self-registration flow was never going to complete for the one scenario
  Stage 1 actually exercises.

Fix: spec.credentialsSecretRef (§4.1), bring-your-own -- a human mints an
instance-scoped service account once, manually, with their own admin
session, and hands the controller that Secret directly. This is now the
primary, expected path; self-registration on a genuinely fresh install
(where this controller might actually win the race) stays as the
fallback it was always meant to be, not the only path.

Also corrected: this section's opening paragraph still said "v1-blocking,
not v1-shippable" pending SERVICE-ACCOUNTS.md landing -- confirmed shipped
(internal/api/service_accounts.go, migration 014) since Stage 0's work on
this repo; stale framing removed.
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Terdut operator

Aims to expose most config as CRD's, so end users can self-service over gitops.

See DESIGN.md for the full design: CRD catalog and specs, reconciliation semantics, bootstrap/auth, Postgres integration, RBAC, and the relationship to charts/terdut-server. This README stays a short pitch; the open questions it used to carry are now resolved decisions there (§2).

CRD's

terdutServers

Creates a server — Deployment, Service, database wiring, bootstrap, operator credentials, and allowedTeams consent for cross-namespace teams. See DESIGN.md §4.1, §4.6.

terdutTeams

  • team name
  • oidc groups
  • serverRef — explicit reference to its TerdutServer, may be in a different namespace (one team owns the server, others self-service a team against it), gated by that TerdutServer's own allowedTeams field (DESIGN.md §2, §4.1, §4.2, §4.6)

terdutEscalationrules

  • rule
  • teamRef — explicit reference to its TerdutTeam (DESIGN.md §2, §4.3)

terdutDeadmansswitches

  • rule
  • teamRef (DESIGN.md §4.4)

terdutAlertSources

  • teamRef (DESIGN.md §4.5)
  • URL/key are generated by the server at creation and surfaced only via a generated Secret, never set explicitly
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