Add count to generate multiple domain

Makefile

@@ -4,8 +4,8 @@ console:
 	@virsh console --domain db1
 
 ssh:
-	@IP=$(shell virsh domifaddr --domain db1 | tail -2 | awk -F ' ' '{ print $$4 }' | sed 's|/.*||') && \
-		ssh -o ProxyCommand="ssh -W %h:%p antoine@dx30.localdomain" -i ~/.ssh/pri/id_rsa_bis antoine@"$$IP"
+	IP=$(shell virsh domifaddr --domain db1 | tail -2 | awk -F ' ' '{ print $$4 }' | sed 's|/.*||') && \
+		ssh -o ProxyCommand="ssh -W %h:%p antoine@dx30_remote.localdomain" -i ~/.ssh/pri/id_rsa_bis antoine@"$$IP"
 
 dhcp-lease:
 	@virsh net-dhcp-leases --network private

base/libvirtd.tf

@@ -47,8 +47,16 @@ resource "libvirt_volume" "centos7_qcow2" {
 }
 
 resource "libvirt_volume" "debian_buster_qcow2" {
-  name   = "debian-buster.qcow2"
+  name   = "debian-openstack-buster.qcow2"
   pool   = libvirt_pool.pool_1.name
   source = "./images/debian-10-openstack-amd64.qcow2"
   format = "qcow2"
 }
+
+resource "libvirt_volume" "debian_with_docker_qcow2" {
+  name   = "debian-10.7.0-with-docker.qcow2"
+  pool   = libvirt_pool.pool_1.name
+  source = "./images/debian-10.7.0_packer.qcow2"
+  format = "qcow2"
+}
+

docker-kvm-qemu-libvirt

@@ -1 +1 @@
-Subproject commit 6e6f8cb6470380c8b4c07910d98f744bad8852a3
+Subproject commit ebd073a56c23ea79efd65426563182c92855725f

stack/cloud_init.tf

@@ -1,22 +1,25 @@
 data "template_file" "user_data" {
   template = "${file("${path.module}/cloud_init_user_data.yml")}"
   vars = {
-    hostname = var.hostname
+    hostname = format("%s-%s", var.hostname, count.index)
   }
+  count = var.number_domain
 }
 
 data "template_file" "meta_data" {
   template = "${file("${path.module}/cloud_init_meta_data.yml")}"
   vars = {
-    dns_address = var.dns_address
-    dns_domain  = var.dns_domain
+    instance_id = count.index
   }
+  count = var.number_domain
 }
 
 # Use CloudInit to add the instance
 resource "libvirt_cloudinit_disk" "commoninit" {
-  name      = "commoninit.iso"
+  name      = format("commoninit-%s.iso", count.index)
   pool      = var.pool_1
-  user_data = data.template_file.user_data.rendered
-  meta_data = data.template_file.meta_data.rendered
+  user_data = data.template_file.user_data[count.index].rendered
+  meta_data = data.template_file.meta_data[count.index].rendered
+
+  count = var.number_domain
 }

stack/cloud_init_meta_data.yml

@@ -1,8 +1,6 @@
 #cloud-config
 # vim: syntax=yaml
 
-network-interfaces: |
-  auto eth0
-  iface eth0 inet dhcp
-  dns-nameservers ${dns_address}
-  dns-search ${dns_domain}
+instance-id: ${instance_id}
+network:
+  config: disabled

stack/computes.tf

@@ -2,13 +2,15 @@
 
 # Define KVM domain to create
 
-resource "libvirt_domain" "db1" {
-  name      = "db1"
+resource "libvirt_domain" "domains" {
+  name      = format("db%s", count.index)
   memory    = "1024"
   vcpu      = 1
   running   = "true"
   autostart = "true"
 
+  count = var.number_domain
+
   boot_device {
     dev = ["hd", "network"]
   }
@@ -18,14 +20,14 @@ resource "libvirt_domain" "db1" {
   }
 
   disk {
-    volume_id = libvirt_volume.my_root_debian.id
+    volume_id = element(libvirt_volume.root_debian.*.id, count.index)
   }
 
   disk {
-    volume_id = libvirt_volume.external_disk_1.id
+    volume_id = element(libvirt_volume.external_disk.*.id, count.index)
   }
 
-  cloudinit = libvirt_cloudinit_disk.commoninit.id
+  cloudinit = libvirt_cloudinit_disk.commoninit[count.index].id
 
   console {
     type        = "pty"

stack/libvirtd.tf

@@ -16,6 +16,10 @@ terraform {
       source  = "dmacvicar/libvirt"
       version = ">= 0.6.3"
     }
+    docker = {
+      source  = "kreuzwerker/docker"
+      version = "2.11.0"
+    }
   }
 
   backend "etcdv3" {
@@ -35,15 +39,16 @@ provider "libvirt" {
 
 resource "null_resource" "delay_10s" {
   provisioner "local-exec" {
-    command = "sleep 10"
+    command = "sleep 120"
   }
   triggers = {
-    "before" = libvirt_domain.db1.id
+    // trigger after last domain created
+    "after" = libvirt_domain.domains[var.number_domain - 1].id
   }
 }
 
 # Output Server IP
 output "ip" {
-  value      = libvirt_domain.db1.network_interface
+  value      = libvirt_domain.domains.*.network_interface
   depends_on = [null_resource.delay_10s]
 }

stack/networks.tf

@@ -9,4 +9,11 @@ resource "libvirt_network" "private_network" {
   dhcp {
     enabled = true
   }
+  dns {
+    enabled    = true
+    local_only = true
+    forwarders {
+      address = var.dns_address
+    }
+  }
 }

stack/variable.tf

@@ -4,16 +4,16 @@ variable "ip" {
   description = "fixed ip address for compute"
 }
 
-variable "hostname" {
+variable "number_domain" {
   type        = string
-  default     = "compute-1"
-  description = "compute hostname"
+  default     = "3"
+  description = "number of domain"
 }
 
-variable "dns_domain" {
+variable "hostname" {
   type        = string
-  default     = "localdomain"
-  description = "dns domain name"
+  default     = "compute"
+  description = "compute hostname"
 }
 
 variable "dns_address" {
@@ -30,7 +30,7 @@ variable "pool_1" {
 
 variable "debian_buster_qcow2" {
   type        = string
-  default     = "debian-buster.qcow2"
+  default     = "debian-10.7.0-with-docker.qcow2"
   description = "already created debian vol, set with variable because libvirt provider dont' wotk with data resource"
 }
 

stack/volumes.tf

@@ -4,21 +4,23 @@
 # ~> Tip: when provisioning multiple domains using the same base image, create a libvirt_volume for the base image and then define 
 # the domain specific ones as based on it. This way the image will not be modified and no extra disk space is going to be used for the base image.
 
-resource "libvirt_volume" "my_root_centos" {
+resource "libvirt_volume" "root_centos" {
   name             = "my-root-centos"
   pool             = var.pool_1
   base_volume_name = var.centos7_qcow2
 }
 
-resource "libvirt_volume" "my_root_debian" {
-  name             = "my-root-debian"
+resource "libvirt_volume" "root_debian" {
+  name             = format("root-debian-%s", count.index)
   pool             = var.pool_1
   base_volume_name = var.debian_buster_qcow2
+  count            = var.number_domain
 }
 
-resource "libvirt_volume" "external_disk_1" {
-  name = "external-disk-1"
+resource "libvirt_volume" "external_disk" {
+  name = format("external-disk-%s", count.index)
   # 10Gb
   size  = 10737418240
   pool  = var.pool_1
+  count = var.number_domain
 }