node: create am with backends for node

node/node.go

@@ -127,9 +127,14 @@ func New(conf *Config) (*Node, error) {
 	}
 	node.keyDir = keyDir
 	node.keyDirTemp = isEphem
-	// Creates an empty AccountManager with no backends. Callers (e.g. cmd/geth)
-	// are required to add the backends later on.
-	node.accman = accounts.NewManager(&accounts.Config{InsecureUnlockAllowed: conf.InsecureUnlockAllowed})
+	// Ensure that the AccountManager method works before the node has started. We rely on
+	// this in cmd/geth.
+	am, ephemeralKeystore, err := makeAccountManager(conf)
+	if err != nil {
+		return nil, err
+	}
+	node.accman = am
+	node.keyDir = ephemeralKeystore
 
 	// Initialize the p2p server. This creates the node key and discovery databases.
 	node.server.Config.PrivateKey = node.config.NodeKey()