kvdb: add postgres

kvdb/config.go

@@ -13,6 +13,11 @@ const (
 	// live instance of etcd.
 	EtcdBackendName = "etcd"
 
+	// PostgresBackendName is the name of the backend that should be passed
+	// into kvdb.Create to initialize a new instance of kvdb.Backend backed
+	// by a live instance of postgres.
+	PostgresBackendName = "postgres"
+
 	// DefaultBoltAutoCompactMinAge is the default minimum time that must
 	// have passed since a bolt database file was last compacted for the
 	// compaction to be considered again.