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Luca Berton is an Ansible automation expert, author of 8 Ansible books published by Apress and Leanpub including "Ansible for VMware by Examples" and "Ansible for Kubernetes by Example", and creator of the Ansible Pilot YouTube channel. He shares practical automation knowledge through tutorials, books, and video courses to help IT professionals and DevOps engineers master infrastructure automation.

Creating an Azure Virtual Network with Ansible Playbook

By Luca Berton · Published 2024-01-01 · Category: installation

Learn how to use Ansible’s Azure modules to automate the creation of a virtual network with subnets and a public IP address in Microsoft Azure Cloud.

Creating an Azure Virtual Network with Ansible Playbook

Creating an Azure Virtual Network with Ansible Playbook

As organizations continue to adopt cloud technologies, the need for automated infrastructure provisioning and configuration management becomes more important than ever. Ansible, a popular open-source automation tool, has several modules for working with Microsoft Azure Cloud. In this article, we will explore how to use Ansible’s Azure modules to automate the creation of a virtual network with subnets and a public IP address in Microsoft Azure Cloud.

See also: Creating an Azure Virtual Machine Scale Set using Ansible

Prerequisites

To follow along with this tutorial, you will need the following:
  • An Azure account with the necessary permissions to create virtual networks and subnets.
  • Ansible is installed on your local machine or server.
  • Azure modules for Ansible installed.
ansible-galaxy collection install azure.azcollection

Creating an Azure Virtual Network with Ansible Let’s start by creating an Ansible playbook to create a virtual network with subnets and a public IP address in Azure.

See also: Ansible AWS EC2: Automate Ubuntu Instance Creation & Data Collection

Code

  1. Define Variables First.
We need to define the variables that will be used throughout the playbook. Open a new file and add the following code: 
---
- name: Azure Virtual Network
  hosts: all
  vars:
    resource_group_name: "aznetwork-rg"
    location: westeurope
    tags:
      environment: dev
      department: infrastructure
    network:
      name: "aznetwork-vnet"
      address: "10.210.0.0/16"
      subnets:
        - name: "aznetwork-vnet-frontend"
          address: "10.210.1.0/24"
        - name: "aznetwork-vnet-backend"
          address: "10.210.2.0/24"
      publicip:
        name: "aznetwork-public-ip"
        domain: aznetwork-labs

In this code, we define the following variables:

  • resource_group_name: The name of the resource group where the virtual network will be created.
  • location: The Azure region where the resource group will be created.
  • tags: Custom tags to be added to the virtual network.
  • network: The details of the virtual network, including its name, address space, and subnets.
  • publicip: The details of the public IP address.
  1. Create Virtual Network Next.
We will use the azure_rm_virtualnetwork module to create the virtual network. Add the following task to the playbook: 
- name: VNet - Create virtual network
  azure.azcollection.azure_rm_virtualnetwork:
    resource_group: "{{ resource_group_name }}"
    name: "{{ network.name }}"
    address_prefixes:
      - "{{ network.address }}"
    tags:
      environment: "{{ tags.environment }}"
      department: "{{ tags.department }}"
  register: output_vmet

In this code, we use the azure_rm_virtualnetwork module to create the virtual network with the following parameters:

  • resource_group: The name of the resource group where the virtual network will be created.
  • name: The name of the virtual network.
  • address_prefixes: The address space for the virtual network.
  • tags: The tags to be added to the virtual network.
The register keyword allows us to save the output of the task in a variable called output_vmet.
  1. Add Subnets. Now, let’s use the azure_rm_subnet module to add subnets to the virtual network. Add the following tasks to the playbook:
- name: VNet - Add frontend subnet
  azure.azcollection.azure_rm_subnet:
    resource_group: "{{ resource_group_name }}"
    name: "{{ network.subnets[0].name }}"
    address_prefix: "{{ network.subnets[0].address }}"
    virtual_network: "{{ network.name }}"
  register: output_vnet_frontend

This is an Ansible playbook written in YAML format for creating an Azure Virtual Network. It defines variables such as the resource group name, location, and tags, as well as the network, subnet, and public IP address configurations. The playbook executes tasks such as creating the virtual network, adding frontend and backend subnets, and creating a public IP address using the Azure modules provided by the Azure Collection for Ansible. The full Ansible Playbook looks like the following:

---
- name: Azure Virtual Network
  hosts: all
  vars:
    resource_group_name: "aznetwork-rg"
    location: westeurope
    tags:
      environment: dev
      department: infrastructure
    network:
      name: "aznetwork-vnet"
      address: "10.210.0.0/16"
      subnets:
        - name: "aznetwork-vnet-frontend"
          address: "10.210.1.0/24"
        - name: "aznetwork-vnet-backend"
          address: "10.210.2.0/24"
      publicip:
        name: "aznetwork-public-ip"
        domain: aznetwork-labs
    tasks:
      - name: VNet - Create virtual network
        azure.azcollection.azure_rm_virtualnetwork:
          resource_group: "{{ resource_group_name }}"
          name: "{{ network.name }}"
          address_prefixes:
            - "{{ network.address }}"
          tags:
            environment: "{{ tags.environment }}"
            department: "{{ tags.department }}"
        register: output_vmet

      - name: VNet - Add frontend subnet
        azure.azcollection.azure_rm_subnet:
          resource_group: "{{ resource_group_name }}"
          name: "{{ network.subnets[0].name }}"
          address_prefix: "{{ network.subnets[0].address }}"
          virtual_network: "{{ network.name }}"
        register: output_vnet_frontend

      - name: VNet - Add backend subnet
        azure.azcollection.azure_rm_subnet:
          resource_group: "{{ resource_group_name }}"
          name: "{{ network.subnets[1].name }}"
          address_prefix: "{{ network.subnets[1].address }}"
          virtual_network: "{{ network.name }}"
        register: output_vnet_backend

      - name: Create a public IP address
        azure.azcollection.azure_rm_publicipaddress:
          resource_group: "{{ resource_group_name }}"
          allocation_method: Static
          name: "{{ network.publicip.name }}"
          domain_name_label: "{{ network.publicip.domain }}"
          sku: standard
        register: output_publicip

Conclusion

This Ansible playbook uses the Azure Collection to create an Azure Virtual Network. The playbook includes variables for the resource group name, location, tags, network, subnet, and public IP address configurations. The tasks in the playbook include creating the virtual network, adding frontend and backend subnets, and creating a public IP address.

See also: Configuring Ansible for AWS: Setup Guide & Playbook

Category: installation

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