can you help me move my developers’ access to the database externally from port 30020, via URL same picture
I don’t think you need to use the Istio Gateway for that purpose. Assuming there’s only one postgres pod, you can expose it with a NodePort service, assuming that the node IPs are routable. This assumes that the cluster itself is well secured on your internal network, since if it isn’t this will be a nightmare.
I have a external access, there not the same VLAN (clusters k8s in on-premises)