Merge pull request #1 from cabify/add_module_to_add_gci_and_private_dns

Create module to add gci resources with private dns

google_vm_with_r53_private_dns/README.md

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+# Terraform Google VM with r53 private dns
+
+Create a Google Compute Instance with a private DNS record in route53
+
+### Example usage
+
+In the following example we're creating 3 nomad agent instances.
+
+```
+module "nomad_agent" {
+  source                         = "[email protected]:cabify/terraform-modules.git//google_vm_with_r53_private_dns?ref=1aac443ede51bc46a0a4b1d3493287e1537ade57"
+  gce_zone                       = "${data.terraform_remote_state.testing.gce-zone}"
+  component                      = "nomad"
+  host_group                     = "nomad"
+  instance_count                 = "3"
+  aws_route53_zone_id            = "${data.terraform_remote_state.testing.aws_route53_zone_id}"
+  aws_route53_zone_name          = "${data.terraform_remote_state.testing.aws_route53_zone_name}"
+  machine_type                   = "n1-standard-1"
+  google_deployer_ssh_public_key = "${data.terraform_remote_state.testing.google_deployer_ssh_public_key}"
+}
+```

google_vm_with_r53_private_dns/inputs.tf

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+variable "gce_zone" {
+  type    = "string"
+  default = ""
+}
+
+variable "aws_route53_zone_id" {
+  type    = "string"
+  default = ""
+}
+
+variable "aws_route53_zone_name" {
+  type    = "string"
+  default = ""
+}
+
+variable "component" {
+  type    = "string"
+  default = "default_component"
+}
+
+variable "host_group" {
+  type    = "string"
+  default = "default_host_group"
+}
+
+variable "instance_count" {
+  type    = "string"
+  default = 0
+}
+
+variable "machine_type" {
+  type    = "string"
+  default = "n1-standard-1"
+}
+
+variable "os_image" {
+  description = "OS GCE identifier"
+  type        = "string"
+  default     = "ubuntu-1404-lts"
+}
+
+variable "google_deployer_ssh_public_key" {
+  type    = "string"
+  default = ""
+}

google_vm_with_r53_private_dns/main.tf

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+resource "google_compute_instance" "vm" {
+  name         = "${var.component}${count.index + 1}"
+  machine_type = "${var.machine_type}"
+  zone         = "${var.gce_zone}"
+  count        = "${var.instance_count}"
+
+  boot_disk {
+    initialize_params {
+      image = "${var.os_image}"
+    }
+  }
+
+  scratch_disk {}
+
+  network_interface {
+    network = "default"
+
+    access_config {}
+  }
+
+  metadata {
+    host_group = "${var.host_group}"
+    ssh-keys   = "${var.google_deployer_ssh_public_key}"
+  }
+}
+
+resource "aws_route53_record" "dns-int" {
+  zone_id = "${var.aws_route53_zone_id}"
+  name    = "${var.component}${count.index + 1}.int.${var.aws_route53_zone_name}"
+  type    = "A"
+  ttl     = "60"
+  count   = "${var.instance_count}"
+
+  // matches up record N to instance N
+  records = ["${element(google_compute_instance.vm.*.network_interface.0.address,count.index)}"]
+}