The commit of unifying the Reva Client config introduced some backwards
incompatible changes to the config structures and yaml config tags. For
the "thumbnails", "webdav" and "notifications" service. This reverts the
changes on the service and introduces TLS options in a backwards
compatible manner.
Consolidate all services to use the Reva config struct for the shared package.
This works because all services (except 'notifications', 'thumbnails' and
'webdav') where using the same config keys and environment variables for
setting the reva gateway.
* use tls for nats connections
* add config options for nats client tls config
* add nats tls config to CI
* add function to create a certpool
* add option to provide a rootCA to validate the server's TLS certificate
* add option to provide a rootCA to validate the server's TLS certificate
* add option to provide a rootCA to validate the server's TLS certificate
* add option to provide a rootCA to validate the server's TLS certificate
* configure nats clients in reva to use tls
Use OCIS_URL as the link base. This change also makes sure that the
top-level OcisURL config value gets a default assigned, even when
OCIS_URL is unset.
Fixes: #4688
The help flag is configured automatically by default already. We don't
need to redo that for every single service.
This also addresses one of the finding of "go race" (#4088)
