Deploy vm with terraform on xen orchestra

This terraform repo you can deploy vm with cloud-init to xen orchestra with xcp-ng.

What do you need.

First a template with cloud-init installed

Packages to install.

cloud-init
cloud-guest-utils
resolvconf

And you may need to enable cloud-init service.

systemctl enable cloud-init

Here are ubuntu cloud images that you can use. Select the OVA file and go the Import tab on xen orchestra server.

How to use.

Install terraform.

Then clone this to place that con reach xen orchestra server.

git clone https://github.com/habbis/terraform_xenorchestra_vm_deploy.git

Have a user ready on xen orchestra that can deploy a vm.

cd terraform_xenorchestra_vm_deploy

terraform init

Add all the right info in variables.tf.

Then add the right info to terraform.auto.tfvars

Then test and so deploy.

# testing before deploy and to see changes.
terraform plan

# deploy
terraform apply

terraform config layout

main.tf

The file main.tf have provider version info and provider login info no more no less .

variables.tf

All variables are placed here on thing of note is type = map(any) this is used with terraform.auto.tfvars and for_each to have more flexbile variable layout.

# for terraform.auto.tfvars
variable "deploy_vm" {

  type = map(any)

  default = {}
}

terraform.auto.tfvars

used with terraform.auto.tfvars and for_each to have more flexbile variable layout.

Here i define a new vm to deploy under deply_vm.

deploy_vm = {
# RAM
# 1073733632 1G ram
# 2073733632 is 2G ram
# 4294967296 is 4G ram
# disk
# 150000 is 15G
# storage id for local-vm host hf-xcp08
#  33ab6c88-6beb-dfa8-aa09-df2994b11d86
  test01 = {
    "name"                  = "test01"
    "vm_template"           = "deb11-tmpl-vm"
    "tag_os"                = "debian"
    "tag_os_release"        = "bullseye"
    "ram"                   = "1073733632"
    "cpu"                   = "1"
    "disk"                  = "16106127360"
    "sr_id"                 = "33ab6c88-6beb-dfa8-aa09-df2994b11d86"
    "network"               = "test"
    "ipv4"                  = "10.0.0.10/24"
    "ipv4_gw"               = "10.0.0.1"
    "dns01"                 = "8.8.8.8"
    "dns02"                 = "1.1.1.1"
    "zone"                  = "local.net"

   }
}

cloud-init config.

The file cloud_config.tftpl is a terraform template with cloud-init system config.

#cloud-config
hostname: ${name}
user: ansible
ssh_authorized_keys:
  - ssh-rsa yoursshkey
  - ssh-rsa yoursshkey
manage_etc_hosts: localhost
fqdn: ${name}.${zone}
package_upgrade: true
users:
 - default
  # to encrypt password mkpasswd -m sha-512
 - passwd: yourpasswordhash
# resize root files system
# its best to setup server with filesystem not lvm when using this.
resize_rootfs: true
growpart:
  mode: auto
  devices: ['/']
  ignore_growroot_disabled: false
packages:
 - gnupg 
 - bash-completion
 - curl
 - wget
 - python3
 - python3-pip
 - git
 - vim
 - lvm2
 - sudo
 - openssh-server
 - cloud-init
 - cloud-guest-utils
 - xe-guest-utilities
 - resolvconf
runcmd:
  - [sytemctl, enable, --now, xe-linux-distribution]

The file cloud_network_config.tftpl is a terraform template with cloud-init network v1 config.

#cloud-config
version: 1
config:
    - type: physical
      name: eth0
      subnets:
      - type: static
        address: '${ipv4}'
        gateway: '${ipv4_gw}'
        dns_nameservers:
          - ${dns01}
          - ${dns02}
        dns_search:
          - local.net

vm.tf

Here is the terraform config to deploy a vm.

This config is the terraform template to setup cloud-init for xen orchestra.

    cloud_config = templatefile("cloud_config.tftpl", {
     name = each.value.name
     zone = each.value.zone

    })
    cloud_network_config = templatefile("cloud_network_config.tftpl", {
     ipv4 =  each.value.ipv4
     ipv4_gw =  each.value.ipv4_gw
     dns01   =  each.value.dns01
     dns02   =  each.value.dns02
    })

Tips and tricks.

To find sr id for a storage volume go to.

Home --> Storage --> yourstorage

Here is a example you will see a string like this in a corner.

33ab6c88-6beb-dfa8-aa09-df2994b11d86