railiance-master/schemas/rail.schema.json
codex 4864b7852d chore: use RMASTER-WP prefix for master workplans
Rename RAILIANCE-WP-0017..0021 to RMASTER-WP-* so railiance-master
IDs no longer collide with railiance-platform's RAILIANCE-WP series.
Hub UUIDs are unchanged.
2026-08-14 14:29:18 +02:00

178 lines
6.8 KiB
JSON

{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://railiance.dev/schemas/rail.schema.json",
"title": "Railiance rail declaration",
"description": "Normative shape for declarations/rail.yaml in every rail-* repo. Authored by railiance-master under RMASTER-WP-0021-T04 from the two live rails and docs/rail-composition-contract.md. Codifies current practice; it does not tighten the rail family beyond what both live declarations already carry.",
"type": "object",
"additionalProperties": false,
"required": [
"kind",
"rail_id",
"repo",
"ownership_repo",
"contract_version",
"composition_kind",
"execution_architecture",
"readiness_state",
"required_substrate_capabilities",
"supported_rollout_modes"
],
"properties": {
"kind": {
"const": "execution-rail",
"description": "Fixed discriminator. Both live rails already agree on this value."
},
"rail_id": {
"$ref": "#/$defs/railSlug",
"description": "Canonical identifier for the rail. Must equal the repo slug."
},
"repo": {
"$ref": "#/$defs/repoSlug",
"description": "The rail-* repo holding this declaration."
},
"ownership_repo": {
"$ref": "#/$defs/repoSlug",
"description": "The ownership-axis repo accountable for this execution contract. Both live rails name railiance-cluster."
},
"contract_version": {
"$ref": "#/$defs/semver",
"description": "Version of this rail contract. A derived rail pins the base contract with base_rail_contract, which is a separate field."
},
"composition_kind": {
"enum": ["base", "derived"],
"description": "base owns a complete workload execution contract for a substrate class. derived inherits a versioned base-rail contract and owns only its specialization. See docs/rail-composition-contract.md and ADR-0005."
},
"execution_architecture": {
"type": "string",
"minLength": 3,
"description": "The operations architecture this rail names, e.g. kubernetes, knative-serving-on-kubernetes. Free-form on purpose: a new rail is justified by new semantics, not by an enum update."
},
"readiness_state": {
"enum": ["declared", "installed", "verified", "production-approved", "deprecated"],
"description": "Readiness of the rail contract itself, matching docs/rail-composition-contract.md. Distinct from rapp readiness_state (draft/declared/deployed/verified/retired) and from reef lifecycle_state. Do not unify the three vocabularies without a separate decision."
},
"required_substrate_capabilities": {
"type": "array",
"minItems": 1,
"uniqueItems": true,
"items": { "type": "string", "minLength": 1 },
"description": "Capabilities the substrate must publish before this rail is usable. This is the live name; the bootstrap contract's older substrate_prerequisites label is retired in favour of this field."
},
"supported_rollout_modes": {
"type": "array",
"minItems": 1,
"uniqueItems": true,
"items": { "type": "string", "minLength": 1 },
"description": "Rollout modes this rail supports, e.g. stage1-run, revision-canary."
},
"default_for": {
"type": "array",
"minItems": 1,
"uniqueItems": true,
"items": { "type": "string", "minLength": 1 },
"description": "Workload classes this rail is the default for. Present on the base rail today; optional so a derived rail is not forced to claim default status."
},
"compatibility_notes": {
"$ref": "#/$defs/notes",
"description": "Human-readable caveats. Never load-bearing."
},
"base_rail": {
"$ref": "#/$defs/railSlug",
"description": "Required on derived rails. The rail whose contract is inherited."
},
"base_rail_contract": {
"$ref": "#/$defs/semver",
"description": "Required on derived rails. Exact contract_version of the base rail this derivation is written against. Ranges are not pins."
},
"inherited_semantics": {
"type": "array",
"minItems": 1,
"uniqueItems": true,
"items": { "type": "string", "minLength": 1 },
"description": "Required on derived rails. Semantics taken from the base contract rather than restated."
},
"overridden_semantics": {
"type": "array",
"minItems": 1,
"uniqueItems": true,
"items": { "type": "string", "minLength": 1 },
"description": "Required on derived rails. The only semantics this rail owns. If this list is empty the derived rail has no reason to exist."
},
"compatibility_constraints": {
"type": "array",
"minItems": 1,
"items": { "type": "string", "minLength": 1 },
"description": "Required on derived rails. Constraints a substrate or binding must satisfy to use this derivation."
},
"source_documents": {
"type": "array",
"minItems": 1,
"items": { "$ref": "#/$defs/sourceDocument" }
}
},
"allOf": [
{
"description": "A derived rail must name its base contract and the semantics it inherits or overrides.",
"if": {
"properties": { "composition_kind": { "const": "derived" } },
"required": ["composition_kind"]
},
"then": {
"required": [
"base_rail",
"base_rail_contract",
"inherited_semantics",
"overridden_semantics",
"compatibility_constraints"
]
}
},
{
"description": "A base rail must not carry derived-only fields. Those fields would imply an inheritance it does not have.",
"if": {
"properties": { "composition_kind": { "const": "base" } },
"required": ["composition_kind"]
},
"then": {
"not": {
"anyOf": [
{ "required": ["base_rail"] },
{ "required": ["base_rail_contract"] },
{ "required": ["inherited_semantics"] },
{ "required": ["overridden_semantics"] },
{ "required": ["compatibility_constraints"] }
]
}
}
}
],
"$defs": {
"repoSlug": {
"type": "string",
"pattern": "^[a-z0-9]+(-[a-z0-9]+)*$",
"minLength": 2
},
"railSlug": {
"type": "string",
"pattern": "^rail-[a-z0-9]+(-[a-z0-9]+)*$"
},
"semver": {
"type": "string",
"pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)$"
},
"notes": {
"type": "array",
"items": { "type": "string", "minLength": 1 },
"description": "Human-readable caveats. Never load-bearing: nothing may depend on parsing a note."
},
"sourceDocument": {
"type": "object",
"additionalProperties": false,
"required": ["repo", "path"],
"properties": {
"repo": { "$ref": "#/$defs/repoSlug" },
"path": { "type": "string", "minLength": 1 }
}
}
}
}