Allow values overrides to be define per environment
What
Allow values for the istiod, istio-ingress and istio-internal-ingress components to be defined at an environment level in addition to the cluster overlays.
Why
- Related Issue: https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/24157
- Related Tenant MR: gitlab-com/gl-infra/k8s-mgmt/tenants/reliability!49 (merged)
Edited by Marcel Chacon