[argo-rollouts] Ability to trust private CAs

[stavrospieros1]

Is your feature request related to a problem?

We need to reach out a private custom application from inside Argo Rollouts pods.
Right now when we try to reach it we receive x509: certificate signed by unknown authority
The ca is known and we just need somehow to trust it from inside Argo Rollouts.

Related helm chart

argo-rollouts

Describe the solution you'd like

I found out the following issue where a similar problem in argo-cd is solved by mounting the ca-store
argoproj/argo-cd#6477
But argo rollouts chart does not allow us to add volumes and volumeMounts
https://github.com/argoproj/argo-helm/blob/main/charts/argo-rollouts/templates/controller/deployment.yaml

So if the argo rollouts chart allows us to add volumes and volumeMounts we can address the problem for argo-rollouts too.

Of course maybe the community has a better idea.

Describe alternatives you've considered

I have not something else in mind, but any approach that could make possible to trust additional ca inside argo-rollouts is more than welcome.

Additional context

No response

[jmeridth]

@stavrospieros1 is this similar? Was closed by #1965

[stavrospieros1]

Hi @jmeridth , yes #1965 covers my request.
Thanks a lot !