Merge pull request #1186 from spiffxp/moar-iops-plz

Add n1-highmem-8 nodepool with larger SSDs to k8s-infra-prow-build

infra/gcp/clusters/projects/k8s-infra-prow-build/prow-build/main.tf

@@ -126,6 +126,26 @@ module "prow_build_nodepool_n1_highmem_8" {
   service_account = module.prow_build_cluster.cluster_node_sa.email
 }
 
+module "prow_build_nodepool_n1_highmem_8_maxiops" {
+  source = "../../../modules/gke-nodepool"
+  project_name    = local.project_id
+  cluster_name    = module.prow_build_cluster.cluster.name
+  location        = module.prow_build_cluster.cluster.location
+  name            = "pool4"
+  initial_count   = 1
+  min_count       = 1
+  max_count       = 30
+  # kind-ipv6 jobs need an ipv6 stack; COS doesn't provide one, so we need to
+  # use an UBUNTU image instead. Keep parity with the existing google.com 
+  # k8s-prow-builds/prow cluster by using the CONTAINERD variant
+  image_type      = "UBUNTU_CONTAINERD"
+  machine_type    = "n1-highmem-8"
+  # Use an ssd volume sized to allow the max IOPS supported by n1 instances w/ 8 vCPU
+  disk_size_gb    = 500
+  disk_type       = "pd-ssd"
+  service_account = module.prow_build_cluster.cluster_node_sa.email
+}
+
 module "greenhouse_nodepool" {
   source = "../../../modules/gke-nodepool"
   project_name    = local.project_id