GPPROXY_ADDRESS:    "gpserver.org:50051"

NAME_SERVERCA_CERT: "ca_crt.pem"
NAME_CLIENT_KEY:    "client_key.pem"
NAME_CLIENT_CERT:   "client_crt.pem"

# 0, no tls 
# 1, only server certificate
# 2, server and client certificates
GRPC_TLS: 1