Replace subnetwork name with vpc (#971)

* Add A3 Ultra Cluster

* fix legacy module warning

* Add infra switch logic using Meta argument Count

* fix error

* Cleanup

* Add back default value

* Fix pip3 not found issue: the infra Manager image does not have python installed. k8s jobs in lanuchpad recipes already have the necessary tcpx/tcpxo config.

* Use vpc instead of subnetwork name

Author: danjuan-81

applications/hcc/modules/embedded/modules/scheduler/gke-cluster/main.tf

@@ -382,15 +382,15 @@ module "kubectl_apply" {
       {
         source = "${path.module}/templates/gke-network-paramset.yaml.tftpl",
         template_vars = {
-          name            = network_info.subnetwork,
+          name            = "vpc${idx + 1}",
           network_name    = network_info.network
           subnetwork_name = network_info.subnetwork,
           device_mode     = strcontains(upper(network_info.nic_type), "RDMA") ? "RDMA" : "NetDevice"
         }
       },
       {
         source        = "${path.module}/templates/network-object.yaml.tftpl",
-        template_vars = { name = network_info.subnetwork }
+        template_vars = { name = "vpc${idx + 1}" }
       }
     ]
   ])

applications/hcc/modules/embedded/modules/scheduler/pre-existing-gke-cluster/main.tf

@@ -46,15 +46,15 @@ locals {
       {
         source = "${path.module}/templates/gke-network-paramset.yaml.tftpl",
         template_vars = {
-          name            = network_info.subnetwork
+          name            = "vpc${idx + 1}" 
           network_name    = network_info.network
           subnetwork_name = network_info.subnetwork
           device_mode     = "NetDevice"
         }
       },
       {
         source        = "${path.module}/templates/network-object.yaml.tftpl",
-        template_vars = { name = network_info.subnetwork }
+        template_vars = { name = "vpc${idx + 1}" }
       }
     ]
   ])