reduce redis pods and update doc

README.md

@@ -10,7 +10,7 @@
     - [Database defaults](#database-defaults)
     - [Server defaults](#server-defaults)
     - [Metrics defaults](#metrics-defaults)
-    - [Rootless defaults](#rootless-defaults)
+    - [Rootless Defaults](#rootless-defaults)
   - [Single-Pod Configurations](#single-pod-configurations)
   - [Additional _app.ini_ settings](#additional-appini-settings)
     - [User defined environment variables in app.ini](#user-defined-environment-variables-in-appini)
@@ -99,10 +99,8 @@ When upgrading, please refer to the [Upgrading](#upgrading) section at the botto
 
 ## High Availability
 
-⚠️ **EXPERIMENTAL** ⚠️
+Since version 9.0.0 this chart supports running Gitea and it's dependencies in HA mode.
-
+Care must be taken for production use as not all implementation details of Gitea core are officially HA-ready yet.
-Since version 9.0.0 this chart has experimental support for running Gitea and it's dependencies in a HA setup.
-The setup is still experimental and care must be taken for production use as Gitea core is not yet officially HA-ready.
 
 Deploying a HA-ready Gitea instance requires some effort including using HA-ready dependencies.
 See the [HA Setup](docs/ha-setup.md) document for more details.
@@ -990,10 +988,12 @@ To comply with the Gitea helm chart definition of the digest parameter, a "custo
 
 ### redis-cluster
 
-| Name                        | Description                            | Value   |
+| Name                             | Description                                  | Value   |
-| --------------------------- | -------------------------------------- | ------- |
+| -------------------------------- | -------------------------------------------- | ------- |
-| `redis-cluster.enabled`     | Enable redis                           | `true`  |
+| `redis-cluster.enabled`          | Enable redis                                 | `true`  |
-| `redis-cluster.usePassword` | Whether to use password authentication | `false` |
+| `redis-cluster.usePassword`      | Whether to use password authentication       | `false` |
+| `redis-cluster.cluster.nodes`    | Number of redis cluster master nodes         | `3`     |
+| `redis-cluster.cluster.replicas` | Number of redis cluster master node replicas | `0`     |
 
 ### PostgreSQL-ha
 

docs/ha-setup.md

@@ -1,7 +1,5 @@
 # High Availability
 
-⚠️ **EXPERIMENTAL** ⚠️
-
 All components (in-memory DB, volume/asset storage, code indexer) used by Gitea must be deployed in a HA-ready fashion to achieve a full HA-ready Gitea deployment.
 The following document explains how to achieve this for all individual components.
 
@@ -97,6 +95,10 @@ To do so, you need to set the following configuration values yourself:
 - `gitea.config.cache.ADAPTER`: `redis`
 - `gitea.config.cache.HOST`: `<your redis connection string>`
 
+By default, the `redis-cluster` chart provisions three standalone master nodes of which each has a single replica.
+To reduce the number of pods for a default Gitea deployment, we decided to omit the replicas (`replicas: 0`) and only use the minimum required number of master pods for a functional `redis-cluster` setup.
+For a "proper" `redis-cluster` setup however, we recommend to set `replicas: 1` and `nodes: 6`.
+
 ## Object and asset storage
 
 Object/asset storage refers to the storage of attachments, avatars, LFS files, etc.

values.yaml

@@ -479,9 +479,14 @@ gitea:
 ## @section redis-cluster
 ## @param redis-cluster.enabled Enable redis
 ## @param redis-cluster.usePassword Whether to use password authentication
+## @param redis-cluster.cluster.nodes Number of redis cluster master nodes
+## @param redis-cluster.cluster.replicas Number of redis cluster master node replicas
 redis-cluster:
   enabled: true
   usePassword: false
+  cluster:
+    nodes: 3 # default: 6
+    replicas: 0 # default: 1
 
 ## @section postgresql-ha
 #