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container.training/prepare-tf/source/modules/googlecloud/network.tf
Jérôme Petazzoni a47c51618b 🔧 Improve GKE config to spread across multiple locations
GCP quotas are fairly limited (on my account, I can only
use 8 public IP addresses per zone, which means that I cannot
deploy many public clusters in a single zone). I tried to
use private clusters, but that causes other problems.
This refactoring makes it possible to spread clusters
across multiple zones. Since I have access to 20+ zones
in Europe and 20+ zones in the US, this lets me create a
lot of public clusters and simplifies the module quite a bit.
2022-01-14 12:30:55 +01:00

38 lines
1.2 KiB
HCL

/*
resource "google_compute_network" "_" {
name = var.cluster_name
project = local.project
# The default is to create subnets automatically.
# However, this creates one subnet per zone in all regions,
# which causes a quick exhaustion of the subnet quota.
auto_create_subnetworks = false
}
resource "google_compute_subnetwork" "_" {
name = var.cluster_name
ip_cidr_range = "10.254.0.0/16"
region = local.region
network = google_compute_network._.id
project = local.project
}
resource "google_compute_router" "_" {
name = var.cluster_name
region = local.region
network = google_compute_network._.name
project = local.project
}
resource "google_compute_router_nat" "_" {
name = var.cluster_name
router = google_compute_router._.name
region = local.region
project = local.project
# Everyone in the network is allowed to NAT out.
# (We would change this if we only wanted to allow specific subnets to NAT out.)
source_subnetwork_ip_ranges_to_nat = "ALL_SUBNETWORKS_ALL_IP_RANGES"
# Pick NAT addresses automatically.
# (We would change this if we wanted to use specific addresses to NAT out.)
nat_ip_allocate_option = "AUTO_ONLY"
}
*/