diff --git a/.config/redis.config.php b/.config/redis.config.php
index a5b13da6..2069812f 100644
--- a/.config/redis.config.php
+++ b/.config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/28/apache/config/redis.config.php b/28/apache/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/28/apache/config/redis.config.php
+++ b/28/apache/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/28/fpm-alpine/config/redis.config.php b/28/fpm-alpine/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/28/fpm-alpine/config/redis.config.php
+++ b/28/fpm-alpine/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/28/fpm/config/redis.config.php b/28/fpm/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/28/fpm/config/redis.config.php
+++ b/28/fpm/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/29/apache/config/redis.config.php b/29/apache/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/29/apache/config/redis.config.php
+++ b/29/apache/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/29/fpm-alpine/config/redis.config.php b/29/fpm-alpine/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/29/fpm-alpine/config/redis.config.php
+++ b/29/fpm-alpine/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/29/fpm/config/redis.config.php b/29/fpm/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/29/fpm/config/redis.config.php
+++ b/29/fpm/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/30/apache/config/redis.config.php b/30/apache/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/30/apache/config/redis.config.php
+++ b/30/apache/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/30/fpm-alpine/config/redis.config.php b/30/fpm-alpine/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/30/fpm-alpine/config/redis.config.php
+++ b/30/fpm-alpine/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/30/fpm/config/redis.config.php b/30/fpm/config/redis.config.php
index a5b13da6..2069812f 100644
--- a/30/fpm/config/redis.config.php
+++ b/30/fpm/config/redis.config.php
@@ -14,4 +14,8 @@ if (getenv('REDIS_HOST')) {
   } elseif (getenv('REDIS_HOST')[0] != '/') {
     $CONFIG['redis']['port'] = 6379;
   }
+
+  if (getenv('REDIS_HOST_USER') !== false) {
+    $CONFIG['redis']['user'] = (string) getenv('REDIS_HOST_USER');
+  }
 }
diff --git a/README.md b/README.md
index 6745faa3..6fdd5ec9 100644
--- a/README.md
+++ b/README.md
@@ -236,6 +236,7 @@ To use Redis for memory caching as well as PHP session storage, specify the foll
 
 - `REDIS_HOST` (not set by default) Name of Redis container
 - `REDIS_HOST_PORT` (default: `6379`) Optional port for Redis, only use for external Redis servers that run on non-standard ports.
+- `REDIS_HOST_USER` (not set by default) Optional username for Redis, only use for external Redis servers that require a user.
 - `REDIS_HOST_PASSWORD` (not set by default) Redis password
 
 Check the [Nextcloud documentation](https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/caching_configuration.html) for more information.
diff --git a/update.sh b/update.sh
index 89f3d6f2..ff042751 100755
--- a/update.sh
+++ b/update.sh
@@ -27,8 +27,8 @@ declare -A base=(
 
 declare -A extras=(
 	[apache]='\nRUN a2enmod headers rewrite remoteip ; \\\n    { \\\n     echo '\''RemoteIPHeader X-Real-IP'\''; \\\n     echo '\''RemoteIPInternalProxy 10.0.0.0/8'\''; \\\n     echo '\''RemoteIPInternalProxy 172.16.0.0/12'\''; \\\n     echo '\''RemoteIPInternalProxy 192.168.0.0/16'\''; \\\n    } > /etc/apache2/conf-available/remoteip.conf; \\\n    a2enconf remoteip\n\n# set apache config LimitRequestBody\nENV APACHE_BODY_LIMIT 1073741824\nRUN { \\\n     echo '\''LimitRequestBody ${APACHE_BODY_LIMIT}'\''; \\\n    } > /etc/apache2/conf-available/apache-limits.conf; \\\n    a2enconf apache-limits'
-	[fpm]=''
-	[fpm-alpine]=''
+	[fpm]='\nENV PHP_PM_MAX_CHILDREN 16\nRUN {\\\n     echo'\''pm = pm=dynamic'\''; \\\n     echo'\''pm.start_servers = 4'\''; \\\n     echo'\''pm.min_spare_servers = 2'\''; \\\n     echo'\''pm.max_spare_servers = 24'\''; \\\n     echo'\''pm.max_children = ${PHP_PM_MAX_CHILDREN}'\''; \\\n    } > "${PHP_FPM_DIR}/nextcloud.conf";\n'
+	[fpm-alpine]='\nENV PHP_PM_MAX_CHILDREN 16\nRUN {\\\n     echo'\''pm = pm=dynamic'\''; \\\n     echo'\''pm.start_servers = 4'\''; \\\n     echo'\''pm.min_spare_servers = 2'\''; \\\n     echo'\''pm.max_spare_servers = 24'\''; \\\n     echo'\''pm.max_children = ${PHP_PM_MAX_CHILDREN}'\''; \\\n    } > "${PHP_FPM_DIR}/nextcloud.conf";\n'
 )
 
 declare -A crontab_int=(