node count, ssh key

Terraform_project/Ansible_Master.sh

@@ -19,6 +19,13 @@ sudo -u admns bash -c "ssh-keygen -f ~admns/.ssh/id_rsa -N ''"
 cd /home/admns/.ssh
 
 
-
 sshpass -p "$account_password" ssh-copy-id -o StrictHostKeyChecking=no ${eip1} && sshpass -p "$account_password" ssh-copy-id -o StrictHostKeyChecking=no ${eip2}
+# eipslist1="${join(var.special, google_compute_instance.node.*.network_interface.0.access_config.0.nat_ip)}"
+# read -a eips <<<"$eipslist1"
+# IFS='-' #setting - as delimiter 
+# for eip in "${eips[@]}"; #accessing each element of array 
+# do
+#     echo $eip
+#     sshpass -p "$account_password" ssh-copy-id -o StrictHostKeyChecking=no ${eip}
+# done 
 # Login to Admns and try ansible all -m ping

Terraform_project/main.tf

@@ -1,42 +1,52 @@
-data "template_file" "script_file" {
-  template = file("Ansible_Master.sh")
-  vars = {
-    eip1 = google_compute_instance.node1.network_interface.0.access_config.0.nat_ip
-    eip2 = google_compute_instance.node2.network_interface.0.access_config.0.nat_ip
-  }
-}
+# data "template_file" "script_file" {
+#   template = file("Ansible_Master.sh")
+#   vars = {
+#     eip1 = google_compute_instance.node1.network_interface.0.access_config.0.nat_ip
+#     eip2 = google_compute_instance.node2.network_interface.0.access_config.0.nat_ip
+#   }
+# }
+
 
 resource "google_compute_instance" "master" {
-  name = "ansible-master"
+  name         = "ansible-master"
   machine_type = var.master_instance
   tags = [
     "ansible",
-    "master"]
+  "master"]
   boot_disk {
     initialize_params {
       image = var.image
     }
   }
+
+
   network_interface {
     network = "default"
     access_config {
     }
   }
-  metadata_startup_script = data.template_file.script_file.rendered
+
+
+
+  # metadata_startup_script = data.template_file.script_file.rendered
   depends_on = [
-    google_compute_instance.node1,
-    google_compute_instance.node2,
+    google_compute_instance.node
   ]
-
+  #  Add ssh key
+  metadata = {
+    ssh-keys = "${var.gce_ssh_user}:${file(var.gce_ssh_pub_key_file)}"
+  }
   //metadata_startup_script = file("${path.module}/Ansible_Master.sh")
 }
 
-resource "google_compute_instance" "node1" {
-  name = "ansible-node1"
+resource "google_compute_instance" "node" {
+  count        = var.number_of_nodes
+  name         = "ansible-node${count.index}"
   machine_type = var.node_instance
   tags = [
     "ansible",
-    "node-1"]
+    "node${count.index}",
+  "node"]
   boot_disk {
     initialize_params {
       image = var.image
@@ -48,44 +58,24 @@ resource "google_compute_instance" "node1" {
     }
   }
   metadata_startup_script = file("${path.module}/Ansible_node.sh")
-}
-
-resource "google_compute_instance" "node2" {
-  name = "ansible-node2"
-  machine_type = var.node_instance
-  tags = [
-    "ansible",
-    "node-2"]
-  boot_disk {
-    initialize_params {
-      image = var.image
-    }
-  }
-  network_interface {
-    network = "default"
-    access_config {
-    }
+  metadata = {
+    ssh-keys = "${var.gce_ssh_user}:${file(var.gce_ssh_pub_key_file)}"
   }
-  metadata_startup_script = file("${path.module}/Ansible_node.sh")
 }
 
+resource "google_compute_firewall" "default" {
+  name    = "firewall-ssh"
+  network = google_compute_network.ssh_network.name
 
-/*resource "google_compute_instance" "node" {
-  count = var.number_of_nodes
-  name = "ansible-node${count.index}"
-  machine_type = var.node_instance
-  tags = [
-    "ansible",
-    "node${count.index}"]
-  boot_disk {
-    initialize_params {
-      image = var.image
-    }
+  allow {
+    protocol = "tcp"
+    ports    = ["22"]
   }
-  network_interface {
-    network = "default"
-    access_config {
-    }
-  }
-  metadata_startup_script = file("${path.module}/Ansible_node.sh")
-}*/
+  source_tags   = ["node", "master"]
+  source_ranges = ["0.0.0.0/0"]
+
+}
+
+resource "google_compute_network" "ssh_network" {
+  name = "ssh-network"
+}

Terraform_project/output.tf

@@ -1,14 +1,15 @@
 output "Ansible_master" {
-  value = join(" ", google_compute_instance.master.*.network_interface.0.access_config.0.nat_ip)
+  value       = join(" ", google_compute_instance.master.*.network_interface.0.access_config.0.nat_ip)
   description = "Master, ext ip"
 }
 
-output "Ansible_node1" {
-  value = join(" ", google_compute_instance.node1.*.network_interface.0.access_config.0.nat_ip)
-  description = "Node 1, ext ip"
+# Output will be printed for a batch of node instances
+output "Ansible_node" {
+  value       = join(", ", google_compute_instance.node.*.network_interface.0.access_config.0.nat_ip)
+  description = "Nodes , ext ip"
 }
 
-output "Ansible_node2" {
-  value = join(" ", google_compute_instance.node2.*.network_interface.0.access_config.0.nat_ip)
-  description = "Node 2, ext ip"
-}
+# output "Ansible_node2" {
+#   value       = join(" ", google_compute_instance.node[1].*.network_interface.0.access_config.0.nat_ip)
+#   description = "Node 2, ext ip"
+# }

Terraform_project/variables.tf

@@ -1,28 +1,39 @@
-/*variable "instance_type" {
-  type=string
-}Ask for user input (see if you want to play with it)
-
+# variable "instance_type" {
+#   type = string
+# }
+# Ask for user input (see if you want to play with it)
+
 variable "number_of_nodes" {
-  type = number
+  type    = number
+  default = 2
 }
-*/
+
 variable "master_instance" {
-  type=string
+  type    = string
   default = "e2-medium"
 }
 
 variable "node_instance" {
-  type=string
+  type    = string
   default = "e2-micro"
 }
 
 variable "image" {
-  type=string
+  type    = string
   default = "ubuntu-os-pro-cloud/ubuntu-pro-2004-lts"
 }
 
+# Location of the public key file
+variable "gce_ssh_pub_key_file" {
+  type    = string
+  default = "../test-ssh.pub"
+}
 
-
+# Username for the intsance user to add ssh key.
+variable "gce_ssh_user" {
+  type    = string
+  default = "ubuntu"
+}
 /* You can use this as variable in Provider or resource terraform file.
 variable "Zone" {
   type = string