Modules had no way to be told anything. Announcements — the first real
product Ekklesia will absorb — has zero environment variables and compiles
a LAN IP address into its source, so this is the contract standing between
it and the module system.
- A module declares what it needs in its manifest, using six bounded types
(string, integer, boolean, enum, url, secret) with no nesting and no
regular expressions. Static declaration is what lets the platform validate
configuration *before* deciding whether a module may start: an enabled
module missing a required value is reported `blocked ·
configuration_missing · <key>` rather than taking startup down from inside
its own `start` hook, and Doctor reports the same while still importing no
module code. That forces `manifestVersion: 5`, a hard cutover.
- Ordinary values persist in one Core table (migration 0005), one row per
(module_id, key), stored as text until validated against the declaring
module's current manifest. Nothing is coerced; an invalid stored value
blocks the module rather than falling back to the default. A key the
manifest no longer declares is retained and ignored.
- Secrets are never persisted. There is no encryption at rest in this
repository, so a `secret` key is deployment-supplied and mapped in by the
host under a name the module never sees. A secret declaration has no
`default` field, the write API refuses secret material, and the HTTP view
has no `value` field for one — absent by construction, not filtered.
- Modules receive a frozen `context.config` on the registration, runtime,
and HTTP handler contexts: the same object identity, per module, beside
`services` rather than inside it (services is deliberately one shared
instance). No environment access, no database reference, no way to reach
another module's values.
- Configuration decides eligibility through ADR 0028's existing resolver:
three new blocked reasons, each with a distinct operator fix, propagating
to required dependents through the same mechanism as a disabled module.
- Changes take effect at the next restart; both resources report
restartRequired. New restricted permission
`core.modules.configuration.manage`, separate from lifecycle, at the
sibling prefix `/api/v1/module-configuration`.
- Migration participation stays independent of configuration validity.
Endpoints and credentials for shared infrastructure stay platform
concerns; a module declares which bucket it needs, not an S3 endpoint.
See ADR 0029.
Co-Authored-By: Claude Opus 5 <[email protected]>
