Network Device Configuration with Ansible

1. Introduction

Ansible is an open-source automation tool that simplifies the process of network device configuration. It allows for efficient management of devices across various environments through the use of playbooks.

2. Key Concepts

3. Ansible Setup

To start using Ansible for network device configuration, follow these steps:

1. Install Ansible on your control node.
2. Set up SSH access to network devices.
3. Create an inventory file listing the devices.

4. Playbook Structure

A basic Ansible playbook has the following structure:

- hosts: router
  tasks:
    - name: Configure interface
      ios_config:
        lines:
          - ip address 192.168.1.1 255.255.255.0
          - no shutdown
      

5. Example Playbook

Here is a complete example of a playbook that configures a Cisco router:

---
- name: Configure Cisco Router
  hosts: routers
  gather_facts: no
  tasks:
    - name: Set hostname
      ios_config:
        lines:
          - hostname Router1
    - name: Configure interface
      ios_config:
        lines:
          - interface GigabitEthernet0/1
          - ip address 192.168.10.1 255.255.255.0
          - no shutdown
      

6. Best Practices

Follow these best practices to ensure successful network automation:

• Test playbooks in a staging environment before production.
• Use version control for playbooks and inventory files.
• Document changes and configurations for future reference.

7. FAQ