External CephObjectStores already have endpoints defined by
spec.gateway.externalRgwEndpoints, and if the external store is
configured with TLS (HTTPS), the store's certificates will likely not
accept connections intended for the Service endpoint Rook creates. Some
users might not be able to easily add the service endpoint to their
certificates. Therefore, don't even bother creating a Service for
external clusters.
This does introduce a few issues. The Service seems to have been
initially created to allow multiple external RGW endpoints to be
addressable via a single address in Rook. For all connections to an
external CephObjectStore with multiple endpoints, simply choose an
endpoint at random. Random selection will prevent Rook from failing to
create buckets or users on an external store if one of the external
store's endpoints fails.
The latest OBC library (lib-bucket-provisioner) allows updating the
endpoints on ObjectBuckets after they are created. This allows Rook
users to change endpoints on external CephObjectStores without breaking
all existing OBCs. It requires implementation of the new GetUserID()
library call, requires updating Provision() and Grant() calls to be
idempotent, and it requires removing the Update() call.
Signed-off-by: Blaine Gardner <blaine.gardner@redhat.com>
Blaine Gardner
a777b1d7d1