Semaphore's whole SEMAPHORE_OIDC_PROVIDERS JSON blob lived inside the SOPS-encrypted
semaphore-bootstrap Secret (key `oidc-providers-json`) because it CONTAINS the confidential
client secret. That buried two environment-specific, NON-SECRET URLs in ciphertext —
provider_url (the realm issuer) and redirect_url — where Flux's ${BASE_DOMAIN} postBuild
substitution cannot reach. Both were frozen at `home.keithjackson.dev`, so prod's Semaphore
was pointed at dev's Keycloak and dev's own redirect URI: identical root cause to the
Headlamp login timeout, not yet reported only because nobody had tried prod SSO.
FIX: split the blob. The URLs are public and now live as a plaintext literal in
catalog/semaphore.yaml (rendered to the apps/wave-1 golden), ${BASE_DOMAIN}-substituted like
every other hostname. Only the client secret stays encrypted, in its own key
`oidc-client-secret`, and the KUBELET splices it back via dependent-env-var expansion:
$(SEMAPHORE_OIDC_CLIENT_SECRET) resolves against the secretKeyRef env var declared
immediately above it (order is load-bearing — the kubelet resolves env in list order and
leaves a forward reference as literal text).
Verified: the new key holds the same value as keycloak-realm-clients/semaphore-client-secret
(the mirror invariant), Semaphore v2.19.10's util.OidcProvider consumes client_secret as
before, and `flux envsubst --strict` leaves $(...) untouched while resolving ${BASE_DOMAIN} —
dev renders keycloak.home.keithjackson.dev, prod keycloak.prod.home.keithjackson.dev.
apps/wave-1/semaphore.yaml is a render golden; regenerated with the canonical
`catalog/render.py --all catalog -o apps --wave-layout --no-image-automation`.
Co-Authored-By: Claude Opus 5 <[email protected]>
catalog — ServiceDefinition entries (the onboarding surface)
One YAML file per service. Each file is a ServiceDefinition conforming to
../schemas/servicedefinition.schema.json. Adding or
editing a service here is the only onboarding step — the platform renders compute, storage, network
policy, egress, TLS, DNS, monitoring, and update policy from it (see
../schemas/renderer-contract.md). Serves R-GITOPS-02.
Source of truth for the initial catalog: spec
docs/13-service-catalog.md (14-service table +
SSO/egress/dependency intent).
Current examples
| File | docs/13 row | exposure | egress | auth | Notes |
|---|---|---|---|---|---|
pihole.yaml |
6 | internal | internet | forward-auth | admin UI behind oauth2-proxy; config on Longhorn (DR-critical); also platform DNS |
keycloak.yaml |
0 | public | internet | native | the IdP itself (own admin login + MFA); PostgreSQL on Longhorn; DR-critical |
The remaining catalog services (plex, sonarr, radarr, jackett, seerr, nextcloud, minecraft, unifi, semaphore, kasm, gitea, qbittorrent) are onboarded in later phases; they follow the same schema and inherit every guarantee automatically.
Authoring rules
- Only
nameandsourceare mandatory; every other field defaults to docs/13's default posture (kind: container,exposure: internal,egress: internet,auth.mode: forward-auth, stable auto-update, DNS-only default-deny). Set a field only to override the default. - Any exposed UI must have an
authblock:forward-auth(default) oroidc, each with a non-emptyauth.groups;native/noneare documented exceptions only. - Irreplaceable state (
class: longhornconfigs/DBs) must setbackup.policyto an off-cluster schedule — neverreacquirable(R-STATE-03). Only bulk media may bereacquirable. - Shell braces must be escaped
$${...}. Anything rendered verbatim onto the workload — alifecyclepostStart script, anenvvalue — lands underapps/wave-<N>/, and everyapps-wave-<N>Flux Kustomization declarespostBuild.substituteFrom: cluster-vars. Flux runs envsubst over the WHOLE manifest at reconcile time, so an unescaped${VAR:-}meant for the shell is replaced with the empty string before the container ever starts (this silently killed gitea's and nextcloud's OIDC registration for days). Bare$VARand$(cmd)are left alone and need no escaping; a genuine environment knob is declared inclusters/base/cluster-vars.yamland written bare${KNOB}. Full contract:../clusters/base/apps-vms.yaml.render.pyREFUSES to emit a manifest that breaks this rule (Flux's strict substitution mode cannot: it deliberately exempts the${V:-}/${V:=x}/${V:?}default-operator forms).
Validate before commit — single command, no cluster (R-TEST-02)
check-jsonschema --schemafile schemas/servicedefinition.schema.json catalog/*.yaml
See ../schemas/README.md for install/pinning and a pure-Python fallback.
This is the L0/L1 schema gate (spec docs/14); CI (.gitea/) runs it on every change.
Rendering — render.py (the ServiceDefinition renderer, T-0.3)
render.py compiles a ServiceDefinition into the concrete manifest set defined
by ../schemas/renderer-contract.md: a Namespace (with the
app-namespace/gateway-access labels), the default-deny baseline (R-NET-01), a
Deployment+Service or a KubeVirt VirtualMachine + CDI DataVolume (R-PLAT-02/03), PVCs
(R-STATE), one CiliumNetworkPolicy egress-allow per dependency (R-NET-02), the
egress-class steering label (R-NET-05), HTTPRoute(s) on the shared Gateway (R-TLS/R-DNS),
ServiceMonitor + SLI alerts (R-OBS-01), the Flux ImageRepository/ImagePolicy update plumbing
(R-UPD), and the auth-mode / backup wiring hints (R-IDP/R-STATE-03).
python3 catalog/render.py catalog/pihole.yaml # render one SD to stdout
python3 catalog/render.py --all catalog -o out/ # render every SD to out/<name>.yaml
python3 catalog/render.py --selftest # deterministic self-test (no cluster)
- Deterministic: identical input → byte-identical output (golden-diffable). The L1 render
conformance tests (
conformance/tests/l1-rendering/*) diff the output against committed goldens — run offline byconformance/run.sh --layer l1andci/l1.sh(no cluster). - How CI/Flux consume it: CI invokes
render.pyin the L1 stage; a GitOps flow renders--all catalog -o <rendered-dir>and Flux reconciles the rendered directory. Design choice (renderer-contract is silent on mechanism): a render-then-consume script is the simplest reproducible option — see the header ofrender.py. - Dependency: PyYAML (the renderer's single dependency; the conformance harness stays stdlib-only and only shells out to this script + diffs text).