No way to store the Redis password securely

[BojanZelic]

Redis Auth password is set in a configmap instead of a Secret.

# values.yaml
  redis:
    type: external
    external:
      addr: "harbor-ha-redis-node-0.harbor-ha-redis-headless.harbor.svc.cluster.local:6379..."
      sentinelMasterSet: "mymaster"
      username: ""
      password: "<password_redacted>"
      # If using existingSecret, the key must be REDIS_PASSWORD
      #existingSecret: "test"

the redis.external.existingSecret param doesn't actually pull the value from the K8s secret, instead it does a helm lookup function and ends up storing the password as part of the connection string in the harbor configmap. This causes problems when trying to deploy via argocd as argocd doesn't support helm lookup.

apiVersion: v1
kind: ConfigMap
metadata:
  name: harbor-core
...
data:
  _REDIS_URL_CORE: "redis+sentinel://:<password_redacted>@harbor-ha-redis-node-0.harbor-ha-redis-headless.harbor.svc.cluster.local:6379..."