Allow user to specify config source via environment variable GCR_CONFIG_SOURCE (acceptable values are dataregistry or files) so that they don't have to modify code to make the choice.
Also use value of GCR_DR_SCHEMA if set to specify dataregistry schema to use; otherwise default to "production".
Allow user to specify config source via environment variable
GCR_CONFIG_SOURCE
(acceptable values aredataregistry
orfiles
) so that they don't have to modify code to make the choice.Also use value of
GCR_DR_SCHEMA
if set to specify dataregistry schema to use; otherwise default to "production".