helm: support disabling cert-gen job

[gecube]

Good day!

I see that inside of helm chart we are using kind: Job to generate certificates. I'd like to ask to support disabling of this job as I can issue these certificates with cert-manager like I proposed in another project wazuh/wazuh-kubernetes#577

[arkodg]

hey @gecube we highlight this integration in https://gateway.envoyproxy.io/v1.0.1/install/custom-cert/, in this case the job is a no-op, we can do better by adding explicit support to disable the job in helm

[gecube]

@arkodg Hi! Thanks, I already found this article on my own. It was tough, but anyway appreciate your fast reply.

we can do better by adding explicit support to disable the job in helm

super idea!!!!

[ShyunnY]

It looks like we need to add a knob to turn/off, I think I should be able to complete this work. :)

[arkodg]

thanks for picking this one up @ShyunnY,

gateway/charts/gateway-helm/values.tmpl.yaml

Line 68 in 90a4b99

certgen:

thinking out loud, one UX in Helm for this could be

certgen: nil

[arkodg]

Disabling the cert-get job may also impact other features like OIDC, and it may be hard to make the user aware of this for such cases.
Since running the cert-gen job for this above case is a no-op, we prefer to keep in on, and skip generating certs for this case