Students receive hands-on development experience with tools and languages relevant to automating the Junos OS platform in a DevOps environment. The course includes an introduction to the Junos XML API, and NETCONF but focuses on using Python, PyEZ, and Ansible to automate Junos. The course introduces students to Junos commit, operation (op), event, and SNMP scripts. JSON, YAML, and Jinja2 are introduced as these languages facilitate Junos automation. The course also introduces the Junos Extension Toolkit and related APIs. Finally, the course discusses the use of JSNAPy and Junos ZTP autoinstallation tools. 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 17.1R1, PyEZ 2.0, Python 2.7, and Ansible 2.3.

Students should have intermediate-level networking knowledge and an understanding of the Open Systems Interconnection (OSI) model and the TCP/IP protocol suite. Students should also have familiarity with a programming language such as C, C++, Perl, Python, Ruby, or Java. Students should also attend the Introduction to the Junos Operating System (IJOS) course prior to attending this class. Lastly, a high level understanding of object-oriented programming is a plus, but not a requirement.

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

Day 1

Chapter 1: Course Introduction

Chapter 2: Junos Automation Architecture and Overview

• Why Automate
• Junos MGD Based Automation
• Junos JSD Based Automation
• Automation Languages, Libraries, and Frameworks
• Automation Management Systems
• Other Junos Automation Tools

• NETCONF
• XML API
• XML API Programming Languages
• XML API Tools
• Lab 1: Exploring the XML API

Day 2

• Origins of JSON and YAML
• Features and Benefits
• JSON and YAML uses in Junos Automation
• Creating Well-Formed JSON and YAML Documents
• Conversion To and From XML
• Lab 2: Using JSON and YAML

• Introduction to Python and PyEZ
• Python Development Environment
• Working with RPCs using Junos PyEZ
• Working with an Unstructured Junos Configuration
• Working with Junos PyEZ Tables and Views
• Junos PyEZ Exception Handling
• Lab 3: Implementing Python and Junos PyEZ in Junos

• Jinja2 Overview
• Jinja2 Syntax
• Creating a Junos PyEZ, YAML, and Jinja2 Solution
• Lab 4: Using Jinja2 Templates with PyEZ

Day 3

• Ansible Overview
• Installing Ansible
• Creating and executing Ansible playbooks to manage devices running Junos OS
• Use Case - Using Ansible to configure devices running Junos OS
• Use Case - Using Ansible to install software on devices running Junos OS
• Use Case - Using Ansible to reboot or shut down devices running Junos OS
• Use Case - Using Ansible to revert a device running Junos OS to a factory Default Configuration
• Lab 5: Automating Junos with Ansible

• JSNAPy Overview
• Installation
• Integration into Ansible
• JSNAPy d.Snapcheck, Snapshot, and Diff Functions
• Lab 6: Configuring JSNAPy

Day 4

• Junos Automation Scripting Overview
• Creating Junos OS Commit Scripts
• Creating Junos OS Op Scripts
• Lab 7: Junos Commit and Op Scripts

• Identify Junos OS events
• Create Junos OS event policies
• Create Junos OS event scripts
• Create Junos OS SNMP scripts
• Lab 8: Junos event policies and scripts

• YANG Overview
• YANG Modules
• YANG Syntax
• Junos YANG Case Studies
• Creating and Using Non-Native YANG Modules

• Describe the Advantages of OpenConfig
• Modify the Junos OS Configuration using OpenConfig
• Describe using OpenConfig with the Junos Telemetry Interface (JTI)
• Lab 9: Implementing OpenConfig

Day 5

• JET Overview and Components
• Setup a JET VM
• Create JET Packages
• Use the JET API

• Describe the Purpose of the Junos OS REST API
• Create REST API RPC Queries
• Use the REST API Explorer
• Use Case - Using the Junos REST API
• Lab 10: Implementing the Junos REST API

• ZTP Overview
• The purpose and value of ZTP
• The components and operations of ZTP
• How to deploy a QFX5100 Series switch using ZTP