refactor: 🔧 allow redis user to be configured

Follow up #10366, 3df3c97deb284ecbf3363b90a45c6501957d1e98

.config/example.yml

@@ -60,6 +60,7 @@ redis:
   #pass: example-pass
   #prefix: example-prefix
   #db: 1
+  #user: default
 
 # Please configure either MeiliSearch *or* Sonic.
 # If both MeiliSearch and Sonic configurations are present, MeiliSearch will take precedence.

chart/templates/_helpers.tpl

@@ -153,6 +153,7 @@ redis:
   pass: {{ .Values.redis.auth.password | quote }}
   #prefix: example-prefix
   #db: 1
+	#user: default
 
 #   ┌─────────────────────┐
 #───┘ Sonic configuration └─────────────────────────────────────

packages/backend/src/config/types.ts

@@ -23,6 +23,7 @@ export type Source = {
 		pass: string;
 		db?: number;
 		prefix?: string;
+		user?: string;
 	};
 	elasticsearch: {
 		host: string;

packages/backend/src/db/redis.ts

@@ -5,9 +5,9 @@ export function createConnection() {
 	return new Redis({
 		port: config.redis.port,
 		host: config.redis.host,
-		family: config.redis.family == null ? 0 : config.redis.family,
+		family: config.redis.family ?? 0,
 		password: config.redis.pass,
-		username: "default",
+		username: config.redis.user ?? "default",
 		keyPrefix: `${config.redis.prefix}:`,
 		db: config.redis.db || 0,
 		tls: {