swarm-services-cert issues the swarm-services leaf a self-signed gateway
serves, and on a host fronting no swarm name fetches the store's pki root.
It is gated on the gateway, not on a hive, yet its leaf pair was named
under deploy.hive-controller.tls and defaulted from the hive reader's cert
directory, and the root fetch presented the hive's own identity. A gateway
host with no hive had no such identity, so that branch was red by
construction.
- The pair moves to deploy.bao.servicesIssuerClient{Cert,Key}File, beside
the store's other host-unit readers, and glue-bao-tls.nix defaults it on
the store's host from the leaf it already mints. The old
deploy.hive-controller.tls.baoClient{Cert,Key}File paths are
mkRenamedOptionModule aliases. glue-services-issuer-bao-identity.nix,
which derived the default from deploy.bao.clientCertFile, is gone.
- The no-swarm-name root fetch presents the services-issuer pair. The hive
identity is now only hive-tls-resign's.
- A self-signed gateway with no pair fails evaluation, naming both options.
A pair named but unreadable still fails the unit, naming the paths.
Refs #4921