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jakman85andClaude Opus 4.8 eccc13bb3c T-0.3 ServiceDefinition schema + renderer contract + examples (R-GITOPS-02)

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

2026-08-16 00:08:30 -05:00

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schemas — the ServiceDefinition contract

This directory holds the ServiceDefinition interface — the highest-traffic contract in the platform (spec agents/coordination-protocol.md §2). Onboarding a service is adding/editing one ServiceDefinition under ../catalog/; the platform compiles it into concrete resources. Operators declare what; the platform provides the how.

Source of truth: the read-only spec docs/13-service-catalog.md. This schema matches docs/13 exactly. Do not diverge from it here — escalate spec problems, don't fork the contract.

Files

File	Purpose
`servicedefinition.schema.json`	Formal JSON Schema (draft 2020-12) for a ServiceDefinition. Enforces enums, required fields, patterns, and cross-field invariants.
`renderer-contract.md`	Authoritative field → rendered-resource mapping, with requirement IDs. The contract other workstreams consume.

Schema version: 1.0.0 (in the schema description). Treat any change as an interface change: propose on the task board, update dependent renderers/tests in the same change, never silently break a consumer (coordination-protocol §2).

Required vs. defaulted fields

Required: name, source (with source.image for kind: container, source.vmTemplate for kind: vm).
Everything else is optional and carries a default matching docs/13's "default posture" (kind: container, exposure: internal, egress: internet, auth.mode: forward-auth, update.channel: stable, update.autoRollbackOnFailedHealth: true, observability.metrics: true, dependencies: [] ⇒ DNS-only). A renderer MUST materialize defaults before rendering — see renderer-contract.md §"Default posture".

Cross-field rules the schema enforces

kind: vm ⇒ source.vmTemplate required; otherwise source.image required.
auth.mode: oidc | forward-auth ⇒ auth.groups present and non-empty (R-IDP-06 — access is "in an authorized group," not merely authenticated).
ingressRoutes[].host must match <label>.home.keithjackson.dev.
storage[].class ∈ {longhorn, bulk}; exposure ∈ {internal, public}; egress ∈ {internet, vpn}; auth.mode ∈ {oidc, forward-auth, native, none}.
additionalProperties: false everywhere — unknown keys are rejected (catches typos in review/CI).

Validate examples against the schema — L1, no cluster (R-TEST-02)

Reproducible, single command, no cluster required. Canonical tool: check-jsonschema (YAML-native, pins the schema file, pin the tool version for determinism):

# one-time (pin the version for reproducibility)
pip install check-jsonschema==0.38.0

# validate every catalog entry against the contract
check-jsonschema --schemafile schemas/servicedefinition.schema.json catalog/*.yaml
# -> "ok -- validation done"

Fallback with no extra tool (Python jsonschema + pyyaml only):

python3 - <<'PY'
import json, yaml, glob, sys
from jsonschema import Draft202012Validator
schema = json.load(open('schemas/servicedefinition.schema.json'))
Draft202012Validator.check_schema(schema)
v = Draft202012Validator(schema); bad = False
for f in sorted(glob.glob('catalog/*.yaml')):
    errs = sorted(v.iter_errors(yaml.safe_load(open(f))), key=lambda e: list(e.path))
    print(('PASS ' if not errs else 'FAIL ') + f)
    for e in errs: print('   ', list(e.path), e.message); bad = True
sys.exit(1 if bad else 0)
PY

Both are pure manifest/schema checks (L0/L1 in spec docs/14, table row "L1 Rendering") — they run in CI with no cluster and are wired into the .gitea/ schema-validation gate by WS-TEST.

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