Specification of certificate provider. Defines the mechanism to obtain the certificate and private key for peer to peer authentication.
This message has
oneof_ fields (mutually exclusive fields).
For each oneof, at most one member field can be set at the same time.
Setting any member of the oneof automatically clears all other
gRPC specific configuration to access the gRPC server to obtain the cert and private key. This field is a member of `oneof`_ ``type``.
The certificate provider instance specification that will be passed to the data plane, which will be used to load necessary credential information. This field is a member of `oneof`_ ``type``.