Argo-CD installation with existing Redis-HA [Bring your own Redis]

[ramanNarasimhan77]

Is your feature request related to a problem?

Multiple services that I wish to run on my cluster require a Redis installation, I was hoping to install a single Redis-HA instance with good enough no of replicas and re-use it across services.

However, looking at the Argo-CD chart, it is currently not possible to bring your own redis installation

Related helm chart

argo-cd

Describe the solution you'd like

Allow disabling redis/redis-ha installation and allow configuration of external redis information so that argo-cd can use pre-existing redis instead of installing new one.

Describe alternatives you've considered

Only other possible alternative at this moment is to install multiple redis and have dedicated redis per service

Additional context

No response

[mkilchhofer]

I will close this as a duplicate of #1045.
I already opened a PR to implement this: #1150