I am deploying k8s on prem with argocd and as part of the preparation I am checking the certificate validation and expiry.
We intend to connect to all svc on ui with http as this is a private network, so my only concern is any certs that are used for internal communication in the cluster.

I do not want anything to expired and the env to break.
Cluster is deployed with kubespray, argocd is deployed with helm.
In my argocd namespace I see secret name argocd-secret , in it data of tls.crt which is valid for 1 year.
There are other data in the secret like admin.password, etc..
Anyone know what is this tls.crt used for? Why is it only valid for 1 year?

Thank you.