Ansible Playbook: Deploying Canonical Ubuntu vms

Recently I’ve created a playbook to help me with my daily routine to create labs and configurations for Ubuntu based environment.

First step:

Remember: You must install the libvirt, ansible and git packages for the instalation

Version of packages:

libvirt 8
ansible 2.10

1. Create the template Download the ubuntu 20 or 22 for template configuration

inside of the util directory there are some files to help with:

• netlab1.xml: to configure the invernal libvirt network, virsh net-import netlab1.xml.
• virt_install.sh: the script to run and prepare the template vm, this step is interactive with the terminal to configure everything. e.g: name, ip, hostname…

Setting the variables

Inside of inventory/host_vars/localhost.yml you must to setup some variables:

img_template: the template image name without extension template_address: the ip address set to the interface

for vm section you must inform ram, vcpu and net_type for networking selection(bridge or virtual network), and net_connector is the network name for virtual network or the bridge name for brige.

img_template: "ubuntu20.04"
template_address: "192.168.200.10"
osvariant: ubuntu20.04
vm:
  - name: ubuntu1
    cpu: 1
    mem: 2048
    net_type: "network"
    net_connector: "netlab1"
    net:
      ip: 192.168.200.11
      mask: 255.255.255.0
      gateway: 192.168.200.1
      dns: 192.168.200.1
- name: ubuntu2
    cpu: 1
    mem: 2048
    net_type: "network"
    net_connector: "netlab1"
    net:
      ip: 192.168.200.12
      mask: 255.255.255.0
      gateway: 192.168.200.1
      dns: 192.168.200.1

Deploying the vms

clone the repository and enter into the ubuntu directory

git clone https://github.com/fabioabreureis/ansible_libvirt

cd ubuntu

ansible-playbook -i inventory/hosts ubuntu_vms.yml

run the playbook

ansible-playbook -i inventory/hosts ubuntu_vms.yml

you can destroy the vms with :

ansible-playbook -i inventory/hosts destroy.yml

Examples

Creating the vms

Destroying the vms