From be39d0a0f11c0274d2be1d7e1579264a95b18f7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E0=A4=95=E0=A4=BE=E0=A4=B0=E0=A4=A4=E0=A5=8B=E0=A4=AB?=
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 <netroy@users.noreply.github.com>
Date: Fri, 7 Feb 2025 12:06:12 +0100
Subject: [PATCH] fix(core): Add an option to enable dual-stack lookup to
 support IPv6 for redis (#13118)

---
 packages/@n8n/config/src/configs/scaling-mode.config.ts | 4 ++++
 packages/@n8n/config/test/config.test.ts                | 1 +
 packages/cli/src/services/redis-client.service.ts       | 4 +++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/@n8n/config/src/configs/scaling-mode.config.ts b/packages/@n8n/config/src/configs/scaling-mode.config.ts
index f202440a5b..e4331ce9d0 100644
--- a/packages/@n8n/config/src/configs/scaling-mode.config.ts
+++ b/packages/@n8n/config/src/configs/scaling-mode.config.ts
@@ -52,6 +52,10 @@ class RedisConfig {
 	/** Whether to enable TLS on Redis connections. */
 	@Env('QUEUE_BULL_REDIS_TLS')
 	tls: boolean = false;
+
+	/** Whether to enable dual-stack hostname resolution for Redis connections. */
+	@Env('QUEUE_BULL_REDIS_DUALSTACK')
+	dualStack: boolean = false;
 }
 
 @Config
diff --git a/packages/@n8n/config/test/config.test.ts b/packages/@n8n/config/test/config.test.ts
index 1f471b8c72..32952ec60b 100644
--- a/packages/@n8n/config/test/config.test.ts
+++ b/packages/@n8n/config/test/config.test.ts
@@ -214,6 +214,7 @@ describe('GlobalConfig', () => {
 					username: '',
 					clusterNodes: '',
 					tls: false,
+					dualStack: false,
 				},
 				gracefulShutdownTimeout: 30,
 				prefix: 'bull',
diff --git a/packages/cli/src/services/redis-client.service.ts b/packages/cli/src/services/redis-client.service.ts
index 6dea89a801..e31d55fb6c 100644
--- a/packages/cli/src/services/redis-client.service.ts
+++ b/packages/cli/src/services/redis-client.service.ts
@@ -131,7 +131,7 @@ export class RedisClientService extends TypedEmitter<RedisEventMap> {
 	}
 
 	private getOptions({ extraOptions }: { extraOptions?: RedisOptions }) {
-		const { username, password, db, tls } = this.globalConfig.queue.bull.redis;
+		const { username, password, db, tls, dualStack } = this.globalConfig.queue.bull.redis;
 
 		/**
 		 * Disabling ready check allows quick reconnection to Redis if Redis becomes
@@ -153,6 +153,8 @@ export class RedisClientService extends TypedEmitter<RedisEventMap> {
 			...extraOptions,
 		};
 
+		if (dualStack) options.family = 0;
+
 		if (tls) options.tls = {}; // enable TLS with default Node.js settings
 
 		return options;