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<@ULVA73B9P> In Prefect 3.7.0 prefect-helm charts for prefect-server, how do I get the sub chart for redis to use a kubernetes secret?  Can you show an example of the values.yaml?

:white_check_mark: thought for 252.3 seconds

Yes — for the *Redis subchart* in `prefect-server`, you generally use the Bitnami Redis values under `redis.auth.*`.

If you're on Prefect Helm for 3.x / `prefect-server`, the embedded Redis chart supports:

- `redis.auth.existingSecret`
- `redis.auth.existingSecretPasswordKey`

So your `values.yaml` would look like this:

```yaml
backgroundServices:
  runAsSeparateDeployment: true
  messaging:
    broker: prefect_redis.messaging
    cache: prefect_redis.messaging

redis:
  enabled: true
  architecture: standalone
  auth:
    enabled: true
    existingSecret: my-redis-secret
    existingSecretPasswordKey: redis-password
```

And the Kubernetes Secret should contain the password key referenced above:

```yaml
apiVersion: v1
kind: Secret
metadata:
  name: my-redis-secret
type: Opaque
stringData:
  redis-password: super-secret-password
```

A couple notes:

- `existingSecretPasswordKey` defaults to `redis-password`, so if your secret uses that key, you can omit it.
- This is specifically for the *bundled Redis subchart* (`redis.enabled: true`).

If instead you are *not* using the bundled Redis chart and are pointing Prefect to an external Redis instance, the secret wiring is different and goes under `backgroundServices.messaging.redis`:

```yaml
backgroundServices:
  runAsSeparateDeployment: true
  messaging:
    broker: prefect_redis.messaging
    cache: prefect_redis.messaging
    redis:
      host: my-external-redis
      port: 6379
      existingSecret: my-redis-secret
      existingSecretPasswordKey: redis-password

redis:
  enabled: false
```

Relevant references:
- Prefect Helm chart repo: <https://github.com/PrefectHQ/prefect-helm|prefect-helm>
- Prefect Server chart values: <https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-server|prefect-server chart>
- Bitnami Redis chart values/docs: <https://github.com/bitnami/charts/tree/main/bitnami/redis|Bitnami Redis chart>

If you want, I can also give you a *full working `values.yaml`* for either:
1. *bundled Redis subchart with secret*, or
2. *external Redis with secret*.