From 29b115a03cbad3d9e18083af223f62b44e268ed0 Mon Sep 17 00:00:00 2001
From: "Simon L." <szaimen@e.mail.de>
Date: Fri, 9 Jan 2026 15:18:43 +0100
Subject: [PATCH] redis.config.php: allow to configure redis.cluster

Signed-off-by: Simon L. <szaimen@e.mail.de>
---
 Containers/nextcloud/Dockerfile              |  4 +--
 Containers/nextcloud/config/redis.config.php | 30 ++++++++++++++++++--
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/Containers/nextcloud/Dockerfile b/Containers/nextcloud/Dockerfile
index 6b6be7f8..f3c989f1 100644
--- a/Containers/nextcloud/Dockerfile
+++ b/Containers/nextcloud/Dockerfile
@@ -138,8 +138,8 @@ RUN set -ex; \
     } > /usr/local/etc/php/conf.d/nextcloud.ini; \
     \
     { \
-        echo 'session.save_handler = redis'; \
-        echo 'session.save_path = "tcp://${REDIS_HOST}:${REDIS_PORT}?database=${REDIS_DB_INDEX}${REDIS_USER_AUTH}&auth[]=${REDIS_HOST_PASSWORD}"'; \
+        echo 'session.save_handler = rediscluster'; \
+        echo 'session.save_path = "seed[]=${REDIS_HOST}:${REDIS_PORT}&seed[]=${REDIS_HOST_2}:${REDIS_PORT_2}&seed[]=${REDIS_HOST_3}:${REDIS_PORT_3}&seed[]=${REDIS_HOST_4}:${REDIS_PORT_4}&seed[]=${REDIS_HOST_5}:${REDIS_PORT_5}&seed[]=${REDIS_HOST_6}:${REDIS_PORT_6}&seed[]=${REDIS_HOST_7}:${REDIS_PORT_7}&seed[]=${REDIS_HOST_8}:${REDIS_PORT_8}&seed[]=${REDIS_HOST_9}:${REDIS_PORT_9}&timeout=0&read_timeout=0&failover=error&persistent=1&auth=${REDIS_HOST_PASSWORD}&stream[verify_peer]=0"'; \
         echo 'redis.session.locking_enabled = 1'; \
         echo 'redis.session.lock_retries = -1'; \
         echo 'redis.session.lock_wait_time = 10000'; \
diff --git a/Containers/nextcloud/config/redis.config.php b/Containers/nextcloud/config/redis.config.php
index b59fe4ea..1d0ee369 100644
--- a/Containers/nextcloud/config/redis.config.php
+++ b/Containers/nextcloud/config/redis.config.php
@@ -1,5 +1,5 @@
 <?php
-if (getenv('REDIS_HOST')) {
+if (!getenv('REDIS_HOST_2')) {
   $CONFIG = array(
     'memcache.distributed' => '\OC\Memcache\Redis',
     'memcache.locking' => '\OC\Memcache\Redis',
@@ -17,7 +17,33 @@ if (getenv('REDIS_HOST')) {
     $CONFIG['redis']['dbindex'] = (int) getenv('REDIS_DB_INDEX');
   }
 
-  if (getenv('REDIS_USER_AUTH') !== false) {
+  if (getenv('REDIS_USER_AUTH')) {
     $CONFIG['redis']['user'] = str_replace("&auth[]=", "", getenv('REDIS_USER_AUTH'));
   }
+} else {
+  $CONFIG = array(
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'redis.cluster' => array(
+      'password' => (string) getenv('REDIS_HOST_PASSWORD'),
+      'timeout' => 0.0,
+      'read_timeout' => 0.0,
+      'failover_mode' => \RedisCluster::FAILOVER_ERROR,
+      'seeds' => array(
+        getenv('REDIS_HOST') . ':' . (string)getenv('REDIS_PORT'),
+        getenv('REDIS_HOST_2') . ':' . (string)getenv('REDIS_PORT_2'),
+        getenv('REDIS_HOST_3') . ':' . (string)getenv('REDIS_PORT_3'),
+        getenv('REDIS_HOST_4') . ':' . (string)getenv('REDIS_PORT_4'),
+        getenv('REDIS_HOST_5') . ':' . (string)getenv('REDIS_PORT_5'),
+        getenv('REDIS_HOST_6') . ':' . (string)getenv('REDIS_PORT_6'),
+        getenv('REDIS_HOST_7') . ':' . (string)getenv('REDIS_PORT_7'),
+        getenv('REDIS_HOST_8') . ':' . (string)getenv('REDIS_PORT_8'),
+        getenv('REDIS_HOST_9') . ':' . (string)getenv('REDIS_PORT_9'),
+      ),
+    ),
+  );
+
+  if (getenv('REDIS_USER_AUTH')) {
+    $CONFIG['redis.cluster']['user'] = str_replace("&auth[]=", "", getenv('REDIS_USER_AUTH'));
+  }
 }