added optional password/database attributes

CHANGELOG.md

@@ -5,6 +5,7 @@
     * Added abstract `FlexObject`, `FlexCollection` and `FlexIndex` classes to `\Grav\Common\Flex` namespace (extend those instead of Framework or Generic classes)
     * Updated bundled `composer.phar` binary to latest version `2.0.9`
     * Improved session fixation handling in PHP 7.4+ (cannot fix it in PHP 7.3 due to PHP bug)
+    * Added optional password/database attributes for redis in `system.yaml`
 1. [](#bugfix)
     * Fixed CLI progressbar in `backup` and `security` commands to use styled output [#3198](https://github.com/getgrav/grav/issues/3198)
     * Fixed page save failing because of uploaded images [#3191](https://github.com/getgrav/grav/issues/3191)

system/config/system.yaml

@@ -103,6 +103,8 @@ cache:
   allow_webserver_gzip: false                    # If true, `content-encoding: identity` but connection isn't closed before `onShutDown()` event
   redis:
     socket: false                                # Path to redis unix socket (e.g. /var/run/redis/redis.sock), false = use server and port to connect
+    password:                                    # Optional password
+    database:                                    # Optional database ID
 
 twig:
   cache: true                                    # Set to true to enable Twig caching