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frontend_mig.tf
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frontend_mig.tf
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/**
* MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
# This sample is using modules to create a number of managed instance groups
# https://learn.hashicorp.com/tutorials/terraform/install-cli?in=terraform/gcp-get-started
# Provider syntax: https://registry.terraform.io/providers/hashicorp/google/latest/docs
# This section will declare the providers needed...
# terraform init -upgrade
###################################
# Create managed instance groups...
###################################
#------------------------------
# Startup script resource...
#------------------------------
data "template_file" "group-startup-script" {
template = file(format("%s/templates/startup.sh.tpl", path.module))
vars = {
PROXY_PATH = ""
}
}
#------------------------------
# Managed instance group template...
#------------------------------
resource "google_compute_instance_template" "frontend_template" {
machine_type = var.machine_types.dev
can_ip_forward = false
name_prefix = "frontend-template-001-"
scheduling {
automatic_restart = true
on_host_maintenance = "MIGRATE"
}
disk {
source_image = var.images.ubunto
}
network_interface {
subnetwork = google_compute_subnetwork.frontend_subnet.id
}
metadata = {
startup-script = data.template_file.group-startup-script.rendered
enable-oslogin = "TRUE"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro", "cloud-platform"]
}
tags = [
google_compute_subnetwork.frontend_subnet.name,
module.cloud-nat.router_name
]
}
resource "google_compute_instance_template" "frontend_template_bck" {
machine_type = var.machine_types.dev
can_ip_forward = false
name_prefix = "frontend-template-002-"
scheduling {
automatic_restart = true
on_host_maintenance = "MIGRATE"
}
disk {
source_image = var.images.ubunto
}
network_interface {
subnetwork = google_compute_subnetwork.frontend_subnet_bck.id
}
metadata = {
startup-script = data.template_file.group-startup-script.rendered
enable-oslogin = "TRUE"
}
service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro", "cloud-platform"]
}
tags = [
google_compute_subnetwork.frontend_subnet_bck.name,
module.cloud-nat-bck.router_name
]
}
#------------------------------
# Target pool...
#------------------------------
# https://github.com/terraform-google-modules/terraform-google-vm/tree/master/modules/mig
# Primary mig...
module "frontend-mig-001" {
source = "terraform-google-modules/vm/google//modules/mig"
version = "12.0.0"
instance_template = google_compute_instance_template.frontend_template.self_link
region = var.region
hostname = "femig001"
target_size = var.size
network = google_compute_network.frontend_vpc_network.self_link
subnetwork = google_compute_subnetwork.frontend_subnet.self_link
named_ports = [
{
name = "http",
port = 80
},
{
name = "ssh",
port = 22
}
]
}
# Secondary mig...
module "frontend-mig-002" {
source = "terraform-google-modules/vm/google//modules/mig"
version = "12.0.0"
instance_template = google_compute_instance_template.frontend_template_bck.self_link
region = var.region_bck
hostname = "femig002"
target_size = var.size
network = google_compute_network.frontend_vpc_network.self_link
subnetwork = google_compute_subnetwork.frontend_subnet_bck.self_link
named_ports = [
{
name = "http",
port = 80
},
{
name = "ssh",
port = 22
}
]
}