feat(websocket): add redis-cluster from bitnami chart

- add values and corresponding readme
- add subchart **redis-20.6.2**

charts/open-webui/Chart.lock

@@ -8,5 +8,8 @@ dependencies:
 - name: tika
   repository: https://apache.jfrog.io/artifactory/tika
   version: 2.9.0
+- name: redis
+  repository: https://charts.bitnami.com/bitnami
+  version: 20.6.2
 digest: sha256:b86b1f385a7f5ecd31f1d938aaa84384bdfc96cb1a173ca510c53aaeea845e3e
 generated: "2024-12-27T09:05:35.551706-07:00"

charts/open-webui/Chart.yaml

@@ -36,3 +36,7 @@ dependencies:
     repository: https://apache.jfrog.io/artifactory/tika
     version: '>=2.9.0'
     condition: tika.enabled
+  - name: redis
+    repository: https://charts.bitnami.com/bitnami
+    version: '>=20.6.2'
+    condition: websocket.redisCluster.enabled

charts/open-webui/README.md

@@ -78,6 +78,10 @@ helm upgrade --install open-webui open-webui/open-webui
 | podLabels | object | `{}` |  |
 | podSecurityContext | object | `{}` | Configure pod security context ref: <https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-containe> |
 | readinessProbe | object | `{}` | Probe for readiness of the Open WebUI container ref: <https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes> |
+| redis-cluster.enabled | bool | `false` | Enable Redis installation |
+| redis-cluster.fullnameOverride | string | `"open-webui-redis"` | Redis cluster name (recommended to be 'open-webui-redis') |
+| redis-cluster.auth.enabled | bool | `false` | Enable Redis authentication |
+| redis-cluster.replica.replicaCount | int | `3` | Number of Redis replica instances |
 | replicaCount | int | `1` |  |
 | resources | object | `{}` |  |
 | service | object | `{"annotations":{},"containerPort":8080,"labels":{},"loadBalancerClass":"","nodePort":"","port":80,"type":"ClusterIP"}` | Service values to expose Open WebUI pods to cluster |

charts/open-webui/values.yaml

@@ -37,7 +37,7 @@ websocket:
   enabled: false
   # -- Specifies the websocket manager to use with env `WEBSOCKET_MANAGER`: redis (default)
   manager: redis
-  # -- Specifies the URL of the Redis instance for websocket communication. Template with `redis://<host>:<port>/<db>`
+  # -- Specifies the URL of the Redis instance for websocket communication. Template with `redis://[:<password>@]<hostname>:<port>/<db>`
   url: redis://open-webui-redis:6379/0
   # -- Deploys a redis
   redis:
@@ -75,6 +75,22 @@ websocket:
       # -- Redis service node port. Valid only when type is `NodePort`
       nodePort: ""
 
+# -- Deploys a Redis cluster with subchart 'redis' from bitnami
+redis-cluster:
+  # -- Enable Redis installation
+  enabled: false
+  # -- Redis cluster name (recommended to be 'open-webui-redis')
+  # - In this case, redis url will be 'redis://open-webui-redis-headless:6379/0' or 'redis://[:<password>@]open-webui-redis-headless:6379/0'
+  fullnameOverride: open-webui-redis
+  # -- Redis Authentication
+  auth:
+    # -- Enable Redis authentication (disabled by default)
+    enabled: false
+  # -- Replica configuration for the Redis cluster
+  replica:
+    # -- Number of Redis replica instances
+    replicaCount: 3
+
 # -- Value of cluster domain
 clusterDomain: cluster.local