Get gets config variable.

LoadConfig loads config file in yaml format.

ConfigCmd represents the config command.

ConfigDir is the directory to store config file.

DefaultConfigFile is the default config file name.

ErrConfigNotMatch indicates error for no config matchs.

ErrEmptyEndpoint indicates error for empty endpoint.

Insecure represents the insecure connect option of grpc dial, default is false.

ReadConfig represents the current config read from local.

Config defines the config schema.