Add docs for Redis env var configs

Author: marcleblanc2

charts/sourcegraph/README.md

@@ -315,6 +315,8 @@ In addition to the documented values, all services also support the following va
 | sourcegraph.nodeSelector | object | `{}` | Global NodeSelector, learn more from the [Kubernetes documentation](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector) |
 | sourcegraph.podAnnotations | object | `{}` | Add extra annotations to attach to all pods |
 | sourcegraph.podLabels | object | `{}` | Add extra labels to attach to all pods |
+| sourcegraph.redisCacheEndpoint | string | `""` | Set the value of the REDIS_CACHE_ENDPOINT environment variable on the needed containers, when Kubernetes secrets are disabled |
+| sourcegraph.redisStoreEndpoint | string | `""` | Set the value of the REDIS_STORE_ENDPOINT environment variable on the needed containers, when Kubernetes secrets are disabled |
 | sourcegraph.revisionHistoryLimit | int | `10` | Global deployment clean up policy, learn more from the [Kubernetes documentation](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#clean-up-policy) |
 | sourcegraph.serviceLabels | object | `{}` | Add extra labels to all services |
 | sourcegraph.tolerations | list | `[]` | Global Tolerations, learn more from the [Kubernetes documentation](https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/) |

charts/sourcegraph/values.yaml

@@ -40,6 +40,10 @@ sourcegraph:
   serviceLabels: {}
   # -- Disable the creation of Kubernetes secrets objects
   disableKubernetesSecrets: false
+  # -- Set the value of the REDIS_CACHE_ENDPOINT environment variable on the needed containers, when Kubernetes secrets are disabled
+  redisCacheEndpoint: ""
+  # -- Set the value of the REDIS_STORE_ENDPOINT environment variable on the needed containers, when Kubernetes secrets are disabled
+  redisStoreEndpoint: ""
 
 # Generic application configuration options, used by most applications below
 # app: # Generally matches directory name