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compute-producer.tf
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compute-producer.tf
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data "google_compute_default_service_account" "default" {}
data "google_compute_image" "debian" {
family = "debian-10"
project = "debian-cloud"
}
resource "time_static" "template_update" {
triggers = {
version = data.google_compute_image.debian.image_id
}
}
resource "google_compute_instance_template" "proxy" {
name = format("proxy-%s", time_static.template_update.triggers.version)
machine_type = "e2-medium"
can_ip_forward = true
disk {
source_image = data.google_compute_image.debian.self_link
auto_delete = true
boot = true
}
tags = ["proxy"]
network_interface {
network = google_compute_subnetwork.psc_ilb_producer_subnetwork.network
subnetwork = google_compute_subnetwork.psc_ilb_producer_subnetwork.name
}
scheduling {
preemptible = false
automatic_restart = true
}
metadata = {
startup-script = <<EOT
apt-get update &&
apt-get install -y simpleproxy &&
simpleproxy -d -L 5432 -R ${google_sql_database_instance.postgres.private_ip_address}:5432
EOT
enable-guest-attributes = "true"
enable-osconfig = "true"
}
service_account {
# Not a best practice, only to showcase the PoC
email = data.google_compute_default_service_account.default.email
scopes = ["cloud-platform"]
}
lifecycle {
create_before_destroy = true
}
}
resource "google_compute_region_instance_group_manager" "proxy" {
name = "proxy"
base_instance_name = "proxy"
version {
instance_template = google_compute_instance_template.proxy.id
}
named_port {
name = "postgresql"
port = 5432
}
auto_healing_policies {
health_check = google_compute_health_check.postgresql.id
initial_delay_sec = 300
}
}
resource "google_compute_region_autoscaler" "proxy" {
name = "proxy"
target = google_compute_region_instance_group_manager.proxy.id
autoscaling_policy {
max_replicas = 5
min_replicas = 1
cooldown_period = 60
cpu_utilization {
target = 0.7
predictive_method = "OPTIMIZE_AVAILABILITY"
}
}
}