File signer-config.postgres.json of Package notary

{
    "server": {
        "grpc_addr": ":7899",
	"tls_cert_file": "./notary-signer.crt",
	"tls_key_file": "./notary-signer.key"
    },
    "logging": {
        "level": "debug"
    },
    "storage": {
        "backend": "postgres",
        "db_url": "postgres://username:password@host:port/db_name?sslmode=db_sslmode",
        "default_alias": "defaultalias"
    }
}