platform/oauth2-proxy/podmonitor.yaml landed 2026-10-02 and discovered six targets that have never once scraped. Measured on prod 2026-10-04: all six read health=down with lastError "context deadline exceeded" and lastScrapeDuration exactly 10.0s — the configured scrapeTimeout, i.e. packets DROPPED rather than refused. Cause: every app namespace ships a default-deny NetworkPolicy with policyTypes: [Ingress, Egress] and NO ingress key at all (deny-all-ingress), and the only ingress allowance is <app>-allow-gateway-ingress: fromEntities: [ingress] -> 4180. Prometheus matched no clause. Verified identical in all six of jackett, radarr, sonarr, qbittorrent, pihole, crafty; zero namespaces had any -allow-monitoring-scrape object. render.py already had the right idiom — r_monitoring_ingress_policy — but it returned None unless the service declared observability.metricsEndpoint, and NO ServiceDefinition in this catalog declares one. It was wired in at the call site and had never emitted a single object on any branch: correct, and entirely latent. It now also fires for the forward-auth gate sidecar's own metrics port, keyed on _needs_oauth2_sidecar — deliberately the same condition the scrape keys on, since podmonitor.yaml selects pods purely by the auth-mode label, so a target exists iff the sidecar exists. Keying on observability.metrics instead would let metrics: false produce a discovered-but-blocked target: the same "two halves authored apart" failure this function exists to prevent. Rendered here rather than in platform/oauth2-proxy because that tier would have to name app namespaces created by the sibling apps-wave-0/1 tiers — it would apply on a running cluster and fail on a cold bootstrap. podmonitor.yaml's header records that objection; rendering per-app dissolves it. Five CNPs result, one per forward-auth app, each opening only 44180 to only ns monitoring. apps/ re-rendered with the invocation it was generated by (--no-image-automation, verified byte-identical beforehand); --emit-waves deliberately not run, so no wave kustomization moved. Three L1 goldens are regenerated with it (+63 lines, -0): a renderer change that adds an object necessarily drifts the goldens that pin the renderer's output. The first gate run caught container-workload-render and egress-class-render as FAIL with exactly this CNP as the drift. default-deny-baseline-render's golden regenerated byte-identical, which is the evidence that the regen is faithful and not a rubber stamp. That puts conformance/** in the diff, which is a sensitive path: this PR needs a non-author approving review. The local gate cannot see that — offline it reports approval-policy green (N/A). Local toolbox gate: rc 3 UNDETERMINED, not 0. Every stage that ran is green and l1 went FAIL -> pass with the goldens; the only not-run stage is gitea-settings (no GITEA_SETTINGS_TOKEN). L2/L3 conformance is UNVERIFIED for all 8 touched requirements. Not verified: that the scrape now succeeds. Nothing is applied until Flux reconciles main. Co-Authored-By: Claude Opus 5 (1M context) <[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).