Files
plainpages/ory/kratos/kratos.yml
T
lilleman 1d198acc97 Canonical host via APP_URL: stop login dumping users on /error from a host mismatch
The from-scratch dev login was broken: open the banner's http://localhost:3000, sign
in as the seeded admin, and you landed on http://127.0.0.1:3000/error "Page not found".
Root cause: the banner/APP_URL said localhost but kratos.yml hard-coded 127.0.0.1, and a
host-scoped Kratos CSRF cookie can't cross localhost<->127.0.0.1, so the cross-host login
POST lost it; Kratos redirected to its error sink, which the app had no route for (404).

Make APP_URL the single source of truth for the public host:
- Canonical-host redirect (app.ts): when APP_URL is set, an off-host GET/HEAD visitor is
  308'd to it (path+query kept) before a flow starts, so the browser, the themed forms and
  the cross-origin Kratos POST share one cookie host. After /public/ so static/health
  checks stay host-agnostic; GET/HEAD only so a 308 never replays a cross-host POST.
- Opt-in (no NODE_ENV / no magic default): unset => no redirect, so a prod deploy that
  forgets APP_URL can't bounce real users to a stale default. The dev stack sets it.
- kratos.yml browser URLs default to localhost (match APP_URL's dev value) and derive from
  ${APP_URL} via compose.override.yml; SERVE_PUBLIC_BASE_URL keeps the dev Ory port.
- Real /error page (views/error.ejs) replaces the catch-all 404 for genuine flow errors.

Tests-first: config (opt-in/validated), app (308 on mismatch, no-redirect on match, static
host-agnostic, POST untouched, /error page), updated kratos.test host pins. New devstack
regression (e2e/devstack-login.spec + compose.e2e-devstack.yml) drives the plain
docker-compose-up topology on the host network: login from localhost works and 127.0.0.1 is
canonicalised; wired into scripts/ci.sh. typecheck + 360 units + full ci.sh (visual 10 ·
auth 1 · oauth 2 · full 7 · devstack 2) green.
2026-06-21 21:52:20 +02:00

118 lines
4.4 KiB
YAML

# Ory Kratos — identity & self-service auth. Identity schema (email, name) +
# password login; recovery & verification run on email codes. Every self-service
# flow returns to our own themed routes (§4 renders the fields). DSN + prod
# courier/secrets come from the env. Session→JWT tokenizer wired below (signing
# key in tokenizer/jwks.json).
serve:
public:
base_url: http://localhost:4433/
cors:
enabled: false
admin:
base_url: http://kratos:4434/
selfservice:
# Browser-facing URLs default to localhost (clean clone = APP_URL's default, so the host the web app
# canonicalises to matches the host the login form POSTs to — cookies share one host). Driven by
# APP_URL: compose overrides these from ${APP_URL} (compose.override.yml), so there's one knob.
default_browser_return_url: http://localhost:3000/
allowed_return_urls:
- http://localhost:3000
methods:
password:
enabled: true
code: # email one-time code — powers recovery + verification (not login)
enabled: true
# Social sign-in, OFF by default → clean clone is password-only. Activate via env only
# (no code; the whole-array form is the only env-settable one Kratos offers); §4 derives
# the buttons from this list. SAML isn't in OSS Kratos — bridge it as OIDC (README).
# SELFSERVICE_METHODS_OIDC_ENABLED=true
# SELFSERVICE_METHODS_OIDC_CONFIG_PROVIDERS=[{"id":"google","provider":"google",
# "client_id":"…","client_secret":"…","scope":["openid","email","profile"],
# "mapper_url":"file:///etc/config/kratos/oidc/claims.jsonnet"}]
oidc:
enabled: false
config:
providers: []
flows:
error:
ui_url: http://localhost:3000/error
login:
ui_url: http://localhost:3000/login
after:
# After authenticating, land on our completion route — it mints the session JWT
# (roles from Keto → metadata_public projection → tokenize) and sets our cookie (§4).
default_browser_return_url: http://localhost:3000/auth/complete
registration:
ui_url: http://localhost:3000/registration
after:
password:
hooks:
- hook: session # log in immediately after sign-up
- hook: show_verification_ui
settings:
ui_url: http://localhost:3000/settings
privileged_session_max_age: 15m
required_aal: highest_available
recovery:
enabled: true
use: code
ui_url: http://localhost:3000/recovery
verification:
enabled: true
use: code
ui_url: http://localhost:3000/verification
after:
default_browser_return_url: http://localhost:3000/
logout:
after:
default_browser_return_url: http://localhost:3000/login
# Dev mail catcher (compose.override.yml). Prod overrides via COURIER_SMTP_CONNECTION_URI.
courier:
smtp:
connection_uri: smtp://mailpit:1025/?disable_starttls=true
from_address: no-reply@plainpages.local
from_name: Plainpages
identity:
default_schema_id: default
schemas:
- id: default
url: file:///etc/config/kratos/identity.schema.json
# "Stay signed in" backbone: a long-lived Kratos session that the app re-mints the
# short-lived (~10m) JWT off (§4). Sliding refresh — an active session is extended
# back to full lifespan only once it's within earliest_possible_extend of expiry,
# so frequent users never lapse without a DB write per request.
session:
lifespan: 720h # 30 days
earliest_possible_extend: 24h
cookie:
name: plainpages_session
persistent: true # survive browser restarts
same_site: Lax
# Session→JWT tokenizer (§4): whoami(tokenize_as: plainpages) mints a short-lived,
# locally-verifiable JWT so the hot path never calls Ory. Claims come from the
# committed Jsonnet mapper (sub = identity id, email from traits, roles from the
# metadata_public projection); signed with tokenizer/jwks.json.
whoami:
tokenizer:
templates:
plainpages:
ttl: 10m
subject_source: id
claims_mapper_url: file:///etc/config/kratos/tokenizer/plainpages.jsonnet
jwks_url: file:///etc/config/kratos/tokenizer/jwks.json
# Dev throwaways — production supplies real secrets via env (§3). cipher = 32 chars.
secrets:
cookie:
- PLEASE-CHANGE-ME-dev-kratos-cookie-secret
cipher:
- 0123456789abcdef0123456789abcdef
log:
level: info
format: text