Introduction to Junos Automation and DevOps

Course Overview

This three-day course provides students with introductory knowledge of how to automate Junos using DevOps automation tools, protocols, and technologies. Students receive hands-on experience with tools and languages relevant to automating the Junos OS platform in a DevOps environment. The course includes an introduction to the basic DevOps practices, Junos APIs, and NETCONF. It then focuses on using Python, PyEZ, Ansible, and REST API to automate Junos. XML, JSON, and YAML are introduced as these languages facilitate Junos automation. Through demonstrations and hands-on labs, students will gain experience in automating the Junos operating system and device operations. This course uses Junos OS Release 18.1R1, Junos PyEZ 2.1, and Ansible 2.5.

Target Audience

This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.

Course Objectives

Describe the Junos operating system and its basic design architecture

 Explain traffic processing for transit and exception traffi

Describe the Junos CLI and its features

List and perform initial configuration tasks

Describe interface types and perform basic interface configuration tasks

Describe DevOps principles and practices

Explain how DevOps can benefit an IT organization

 List and describe the various APIs Junos provides for automation

Discuss various frameworks, libraries and tools available to automate Junos devices

Read Junos XML documents

Use XPath to navigate a Junos XML document

Use NETCONF and the XML API to issue RPCs

Use NETCONF and the XML API to configure a Junos device

Understand JSON syntax

Understand YAML syntax

Create JSON and YAML documents

Perform Ansible installation

Retrieve information from Junos devices using Ansible

 Use Ansible to configure Junos devices

Create and execute simple Python scripts

 Use the Python interactive interpreter

 Install Junos PyEZ.

Use PyEZ to connect to Junos devices

 Use PyEZ to issue RPCs

Use PyEZ to modify a Junos device configuration

Use PyEZ to upgrade Junos devices

Describe basic PyEZ exception handling

Describe the capabilities of the Junos REST AP

 Use the Junos REST API Explo

Course Content

Day 1:

1. COURSE INTRODUCTION

2. Introduction to Junos OS

•  Junos OS Basic Design Architecture 
•  Traffic Processing
•  CLI Modes and Features 
•  Initial Configuration Tasks 
•  Interface Types and Configuration
•  Lab 1: Configuring a Device using Junos CLI

3 .Introduction to DevOps :

• Why DevOps?
• The Benefits of DevOps
• DevOps Goals and Best Practices

4 .The Junos Automation Stack :

• The Junos Automation Stack and DevOps 
• Junos XML API Overview
• Junos REST API Overview
• Junos JET API Overview
• Review of Junos Automation Tools

Day 2 :

5 .Introduction to XML and XPath:

• Basic XML Syntax
• The Junos XML Schema
• Navigating the Junos XML Schema with XPath
•  Lab 2: Working with XML and XPath

6 .The XML API and NETCONF:

•  NETCONF 
•  The Junos XML API 
•  Languages and Libraries Used to Automate the Junos XML API 
•  Case Study
• Lab 3: Using XML and NETCONF for Automation

7. Introduction to JSON and YAML :

• The Need to Structure Data
• JSON Basics
• YAML Basics 
•  Use of JSON and YAML in Junos Automation
• Lab 4: Using JSON and YAML

8 .Introduction to Ansible :

• Ansible Architecture and Capabilities
• Ansible Playbook Basics
• Using Ansible to Retrieve Junos Status Information 
• Using Ansible to Retrieve and Modify Configuration Information
• Case Study Lab 5:Using Ansible to Automate Junos

9 .Introduction to Python:

• Basic Python Syntax 
•  Python 2 vs. Python 3 
•  Python Data Types and Variables 
•  Python Sequences, Tuples, Sets, and Dictionaries 
•  Python Libraries
• Python Interactive Interpreter
• Case Study: Creating a Python Script to Solve a Problem
• Lab 6: Using the Python Interpreter

Day 3 :

10. Introduction to Junos PyEZ :

• Connecting to Junos Devices with PyEZ 
• Retrieving Junos Device Status and Configuration Handling 
• Modifying the Junos Configuration with PyEZ 
• Using PyEZ utilities to upgrade Junos software Case Study
• Lab 7: Using PyEZ to Manage Junos Devices

11 .The Junos REST API :

•  Overview of the Junos REST API 
•  Methods of Connecting to the Junos REST API 
•  Configuring the Junos REST API
• Using the Junos REST API Explorer 
• Using the Junos REST API to Retrieve Junos Configuration Data
• Case Study
• Lab 4: Using the REST API

Course Prerequisites

• Basic understanding of the OSI model and the TCP/IP protocol suite;
• Basic understanding of computer networking concepts.

Follow on Courses

  The following are recommended for further study:

• JAUT - Junos Automation