Structural repair: - 13 pages were the same document twice (each exactly 2x its HEAD size), a second frontmatter block whose closing fence had been glued onto a body line by a frontmatter rewrite that re-read its own output. Un-doubled by cutting at the second frontmatter and keeping the copy whose body is a superset; the orphan census reports 0 lost tokens against HEAD. - log.md: one entry per date, bare `## YYYY-MM-DD` headings, newest first — 66 dated headings merged into 34, titles demoted to bold leads, every content line verified present. The file had been descending at the head and ascending at the tail. Ownership moves: - New `LLM/frank-medium.md` is the locator for the retired Dankserver endpoint: era windows quoted from each era page's own banner, no numbers restated, and the two unresolved date conflicts recorded instead of silently resolved. `frank-archon.md` links to it instead of restating the pre-rename window. - The four Pipeline-Parallelism stubs (frontmatter only, no body) are gone; `Multi-Node Runtimes.md` owns runtime construction, launch, mixed-vendor verdicts and cross-split spec decode, and the four links that pointed at the stubs were repointed at it or at the drafter page. - Authentik's three stub pages fold into `Authentik.md`, with the process detail and the outpost reference split out so the parent stays under the length hint. Verified corrections (host census + live probe, 2026-10-19): - The MXFP4 checkpoint two pages called the "on-disk rollback" is gone: /home/dank/models/ holds StillDeadcode, rad and tpl.jinja. Stated once, on the era page that owns that payload; the swap page now links to it. - frank-medium-radiance-mxfp4: the 4.24/7 accept rate belongs to the DFlash2 arm measured on the FP8 target, not to the MXFP4 era; the 3-family soak run census is kept once (155 requests) instead of twice (~120 and 155). - Fleet shapes re-confirmed against the live endpoints before touching any page: 3x200000 fp8 KV, 2x200704, 2x262144. Index rows are regenerated, not hand-carved. Net -1,849 vault lines.
14 KiB
type, description, tags, timestamp
| type | description | tags | timestamp | ||
|---|---|---|---|---|---|
| reference | Outpost, proxy-provider, OAuth2, LDAP and flow configuration for the homelab's Authentik SSO. |
|
2026-10-19 |
Authentik Outpost Reference
Configuration lookup for the Authentik deployment: the live proxy-provider inventory behind the guarded vhosts, the provisioning rules the embedded outpost enforces, this fork's OAuth2 relying-party quirks, the LDAP provider objects, the self-serve user-settings flow, and the live database shape. What the service is, how it is deployed, wired and operated is Authentik; the three core containers are Authentik Processes.
Live proxy-provider inventory
Live provider inventory (read from the authentik-postgres container with
read-only SELECTs, 2026-10-18). Nine proxy providers, all attached to outpost
7e39655b-58d3-4fe6-a80a-513f31051217 ("authentik Embedded Outpost", 9
members in authentik_outposts_outpost_providers), all with
internal_host = http://caddy:8017, all carrying the same three flow
UUIDs (default-authentication-flow,
default-provider-authorization-implicit-consent,
default-provider-invalidation-flow), and each backed by an Application
(the slug column below):
| Provider pk | name | external_host | app slug |
|---|---|---|---|
| 1 | embedded-outpost | https://www.franksdank.cloud |
caddy |
| 2 | search-proxy | https://search.franksdank.cloud |
search |
| 4 | prometheus-proxy | https://prometheus.franksdank.cloud |
prometheus |
| 5 | romm-proxy | https://romm.franksdank.cloud |
romm |
| 6 | files-proxy | https://files.franksdank.cloud |
files |
| 7 | loki-proxy | https://loki.franksdank.cloud/ |
loki |
| 8 | grafana-proxy | https://grafana.franksdank.cloud/ |
grafana-guard |
| 10 | seerr-proxy | https://seerr.franksdank.cloud/ |
seerr-guard |
| 13 | marreta-proxy | https://marreta.franksdank.cloud |
marreta |
That is exactly the Caddyfile's guarded set (dankclaw/Caddyfile:283-423), so
the lockstep rule in Authentik holds today. Two corrections against the 2026-09-02 table:
pk 13 (marreta-proxy) was added when Marreta went onto the chain, and
pk 3 (hermes-proxy) no longer exists at all — select … where id=3
returns zero rows, so it is deleted, not "dormant"; its vhost survived but is
exempt-by-construction (dankclaw/Caddyfile:179-191). OAuth2 relying parties,
not proxy providers, so the proxy outpost does not deserialize them: pk 9
grafana (grant_types = {authorization_code}), pk 12 Seerr OIDC
(grant_types = {} — empty, i.e. still in the state the token-endpoint rule
below rejects), and pk 14 Open WebUI
(grant_types = {authorization_code,refresh_token}). Trailing slashes on
external_host (the runbook-recipe style) and bare origins both intercept
correctly — the outpost matches on hostname.
Provisioning rules for proxy providers
Two provisioning rules, each verified live by an outage:
- All three flows are required. A ProxyProvider created via raw API/ORM
with any of
authentication_flow/authorization_flow/invalidation_flownull wedges the embedded outpost's config fetch: the Rust side rejects the whole config JSON (serde:invalid type: null, expected a formatted UUID string), logsFailed to fetch outpost from API, retrying in 3 secondsforever, and everything behind the outpost dies at the next outpost reload — including hosts whose providers were fine (verified 2026-09-02 when three providers provisioned without any flows took down every guarded vhost after a server restart). Backfill all three flows (copy from pk 1:default-authentication-flow,default-provider-authorization-implicit-consent(the implicit-consent authorization flow,default-invalidation-flow) and the retry loop recovers on its next 3-second cycle. The silent killer: while the outpost process keeps its last good in-memory config, everything works — the outage only surfaces on restart/reload. - Every proxy provider needs an attached Application. The outpost
resolves the post-login redirect through the provider's application; a
provider with no app completes the login (authentik session established)
but bounces to authentik's own user UI (
/if/user/#/library) instead of the app. No error is logged anywhere — the SSO "works" and the app never appears. Create the Application withprovider_idset (the UI does this automatically; raw API/ORM drives must do it explicitly).
OAuth2 relying-party quirks (this fork, verified live 2026-08-31)
The Grafana RP provider (grafana, pk 9, confidential client) was created and
verified end-to-end via ak shell ORM drives. This fork's OAuth2 provider
implementation diverges from upstream in ways that bit us; all verified live:
- Application row required.
OAuth2Provider.objects.create()does not create the single-table-inheritanceApplicationrow; without it the flow executor can never complete an authorize request. Create both rows. grant_typesdefaults to empty. Until the provider'sgrant_typescontains"authorization_code"(enum value with underscore), the token endpoint rejects every exchange withinvalid_request.- Token endpoint is form-encoded + Basic-auth only. A JSON body makes
parse_token_requestsee nogrant_type→unsupported_grant_type; POST-body client secrets are not accepted — authenticate the confidential client withAuthorization: Basic base64(client_id:client_secret). - Provider resolution is by
client_idquery param on the global/application/o/authorize/route; per-slug authorize paths do not exist in this build. Token/userinfo live at/application/o/token/and/application/o/userinfo/?api=1. - Property-mapping evaluator is broken → userinfo returns
subonly.PropertyMappingEvaluator.evaluate(*args, **kwargs)forwards kwargs toBaseEvaluator.evaluate(expression_source), so the first context kwarg becomes the expression source instead of the context; every call raises a swallowedPropertyMappingExpressionExceptionand the claim is skipped. Scope-grant filtering has the same class of bug:ScopeMappinghas no provider FK (linkage lives in theProviderPropertyMappingthrough model), sofilter(provider=...)always yields an empty queryset and tokens asked to carry scopes get zero. Net effect: userinfo/introspection answers with{sub}only — email/groups/entitlements claims cannot be delivered by this build until the evaluator is patched or upgraded. Clients consuming this provider must key identity offsub. - Scope mappings for this provider exist —
grafana-email-scopeandgrafana-profile-scopeare both rows inauthentik_core_propertymapping(read-onlySELECT, 2026-10-18) — and will start emitting claims the moment the evaluator bug is fixed; no config change is needed then.
LDAP provider objects (provisioned via ak shell ORM)
The LDAP outpost's own deployment — unit, image digest, published ports, token env var — is in Authentik. The objects it serves:
Read from the live database (read-only SELECTs against the
authentik-postgres container, 2026-10-18):
| Object | Value |
|---|---|
| LDAP provider | Jellyfin LDAP (pk 11), base DN dc=franksdank,dc=cloud, search_mode=direct, bind_mode=direct |
| Bind DN | cn=svc-jellyfin-ldap,ou=users,dc=franksdank,dc=cloud (unverified 2026-10-18: base DN confirmed in the DB, the ou=users path was not probed — an LDAP bind needs the bind secret) |
| Service account | svc-jellyfin-ldap (user pk 8). It is not passwordless: its password field is a real hash, not Django's !-prefixed unusable marker (starts_with(password,'!') → f) — an earlier revision's "passwordless/unusable" claim is wrong, which matters because an account with a usable password can sign in through the ordinary password flow (unverified 2026-10-18: whether anyone holds that password) |
| Bind token | exactly one row for pk 8, intent=app_password, non-expiring — an earlier revision recorded intent=verification; the live value is app_password |
| RBAC role | svc-jellyfin-ldap-search, carrying exactly one object-level permission authentik_providers_ldap.search_full_directory (verified via guardian_roleobjectpermission) |
| Groups | jellyfin_users, jellyfin_admins (both exist in authentik_core_group) |
| Application | name Jellyfin, slug jellyfin-ldap (an earlier revision said slug jellyfin, which does not exist) |
Hard-won rules (the first is now contested by the live database):
- Token intent: contested, do not trust either value blindly. An earlier
revision asserted that a bind token with
intent=app_passwordis rejected by the flow's password stage withInvalid passwordand onlyintent=verificationpasses. The live token forsvc-jellyfin-ldapisapp_password(authentik_core_token, 2026-10-18), so either the rule is wrong or the current Jellyfin bind path is not that token. Nothing observable settles it today: the LDAP outpost's retained log holds only its 5-minuteinitialized direct binder/Update providersconfig cycles and no bind activity (unverified 2026-10-18: no bind was performed — reproducing it requires the bind secret). Re-verify with a real bind before changing the token's intent either way. - Search needs
search_full_directory. Without the RBAC grant the outpost returns only the bind user itself — a(memberOf=…)filter then matches zero entries and the plugin logsFound no users matching X. The permission is object-level on the provider; grant it via an RBAC role and retest. ak shellimport path for the provider model in 2026.8:from authentik.providers.ldap.models import LDAPProvider. (unverified 2026-10-18: importing it outside a configured Django shell fails withImproperlyConfigured, and noak shellwas driven against the live auth service for this check)
Self-serve user-settings flow (password change)
Users change their own account details through the default-user-settings-flow
(https://auth.franksdank.cloud/if/flow/default-user-settings-flow/) — the
target of the homepage footer's "account" link. It is a stage_configuration
designated flow, so it renders every bound ConfigurableStage for the logged-in
user.
Stages, in execution order (the FlowStageBinding.order field, not the M2M
insertion order):
| order | stage | type | what it does |
|---|---|---|---|
| 20 | default-user-settings |
PromptStage |
name / email / locale + password |
| 100 | default-user-settings-write |
UserWriteStage |
writes the prompt data to the user |
Password change is a prompt field, not a stage. The UserWriteStage
writes whatever the preceding PromptStage collected: for the key password
it calls user.set_password(value) (stages/user_write/stage.py). So the fix
is a password field on the default-user-settings prompt
(field_key=password, type=password, required=False, order 204) — NOT a
PasswordStage. A PasswordStage is an authentication stage: its
validate_password runs authenticate() against the backends to check the
current password; it never sets a new one. (A PasswordStage was added on
2026-09-25 and removed the same day for exactly this reason.)
Two ORM gotchas: Flow.stages.add() fails on this through model
(Can't bulk create a multi-table inherited model — FlowStageBinding is
MTI), so create the FlowStageBinding row directly with an explicit order;
and a prompt field is a Prompt row linked through PromptStageField
(prompt_stage + prompt; the order comes from Prompt.order).
A blank password must not set an empty password. set_password("") would
make the account log in with no password, so a validation policy
(default-user-settings-no-empty-password, bound to the prompt via
PromptStageValidationPolicy) denies the form when prompt_data["password"]
is "" and allows it when set. Verified with the PolicyEvaluator
(empty → deny, set → allow, absent → allow) and end-to-end by driving
UserWriteStageView.update_user on a throwaway user (new password valid, old
invalid).
Live database shape
For live DB truth prefer the postgres container, and it works without any
credential — the local socket is trusted, so a read-only audit is just
podman exec -i authentik-postgres psql -U authentik -d authentik -At -f -
with SQL on stdin (quoting SQL through ssh+zsh otherwise fights you). Verify
before guessing: 2026.x renamed both tables and columns, and the models are
MTI all the way down — authentik_core_provider holds id, name and the
three *_flow_id columns; the proxy table is
authentik_providers_proxy_proxyprovider (doubled proxy) and its PK column
really is oauth2provider_ptr_id (proxy providers inherit the OAuth2
table in 2026.8), the LDAP table is
authentik_providers_ldap_ldapprovider with PK provider_ptr_id;
authentik_core_application attaches to a provider through provider_id
(its PK is policybindingmodel_ptr_id, not id), and authentik_outposts_outpost
is keyed by uuid. So Provider.objects.filter(type=…) raising FieldError
is the same story from the ORM side: type lives in the subclass tables.
Never select secret columns (client_secret, key, password) into a log.
Cross-references
- Authentik — what the service is, its deployment, wiring, operations and failure modes
- Authentik Processes — the postgres, server and worker containers
- Caddy — the reverse proxy carrying the
:8016/:8017auth-chain listeners - Jellyfin — consumes the LDAP outpost via its LDAP-Auth plugin
- Grafana — guarded vhost and OAuth2 relying party of this provider