Configurations as composable claims

Problem. A single deployable needs several distinct configuration inputs — Helm values for the chart, claim values for a database, declared keys for a secret store. Each has a different schema. You want all of them validated together at CI time, supplied through one file per environment, with no parallel claims/ or values/ directories to keep in sync.

Primitives.

• configurations is an array. Each entry is independently resolved against its own schema (schema: local file, or ref: another contract)
• Override files (Contract overrides) replace the array wholesale per environment

One file, multiple typed outputs.

# pactos/my-service-api/overrides/values.stg.yaml
# Value-carrying entries use a local (vendored) schema — `ref:` and `values:`
# are mutually exclusive, so a schema you supply values for must live in the bundle.
configurations:
  - name: deployment
    schema: configuration/deployment/schema.json
    values:
      replicas: 3
      resources:
        requests:
          cpu: 1000m
          memory: 1Gi

  - name: postgres
    schema: configuration/postgres/schema.json
    values:
      instances: 2
      size: medium
      backups:
        enabled: true
        schedule: "0 */6 * * *"

  - name: secrets
    schema: configuration/secrets/schema.json
    values:
      secrets:
        - key: api-key
        - key: openai-token

pacto validate -f overrides/values.stg.yaml validates each entry's values against its local schema. (Values for ref-based configs are resolved and validated at deploy/runtime, not at validate time.) Your deployment tooling reads the same file and produces:

• Helm values (deployment entry → values nested under the component's chart alias)
• A Postgres claim (postgres entry → fields land in the claim's spec)
• A secret-store claim (secrets entry → declared keys provisioned)

Each value is written once — no drift between a chart's values.yaml and a separate claims/postgres.yaml.

Info

Override files use Helm-style array replacement for configurations — the override's array replaces the contract's array entirely, not merged by name (see Contract overrides). Each override file must therefore include every configuration it cares about, each with its schema (and values) or a ref (schema-only). Inline values require a local schema; a ref-based entry carries neither.

Cross-links: configurations · Contract overrides · Environment-specific values files

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