Create certificate for gitlab.net domains using cloudflare-issuer
What
Configure an additional host in istio-gateway to handle traffic for *.gitlab.net domain while terminating SSL with a different certificate generated by cert-manager using the cloudflare-issuer.
Why
The gitlab-combined issuer doesn't have access to add verification records in Cloudflare. We need to use the cloudflare-issuer instead.
Related Issue: https://gitlab.com/gitlab-com/gl-infra/reliability/-/issues/24726
Edited by Marcel Chacon