A module's contributes was map[string]map[string]any — one JSON object key
per requirement, structurally exactly one contribution to "route" ever.
minio needs two public hostnames (the S3 API and the console), which is
two different contributions to route from one module, and nothing let it
say so.
This is the same shape of problem ADR 0094 solved for secrets (a module
needing several values from one provider that gives one per pair):
contributes now accepts either the ordinary {label, port} object, or an
object of local names to several such objects. Detected per requirement
key by what's inside, since (unlike secrets' string-vs-object split) both
shapes are JSON objects: an ordinary contribution's fields are scalars, the
several-instance shape is local-name -> object. Confirmed against every
module.json in mesh-catalog before relying on that split.
Both route-proxy and the migration-era route-adapter already key generated
routers off the composed hostname (Values["name"]), not the module name,
so two contributions with the same From reach them as two independent
routes with no changes needed on the receiving side.
jschoubben
f4bcb320fe