Book Image

Network Automation with Go

By : Nicolas Leiva, Michael Kashin
Book Image

Network Automation with Go

By: Nicolas Leiva, Michael Kashin

Overview of this book

Go’s built-in first-class concurrency mechanisms make it an ideal choice for long-lived low-bandwidth I/O operations, which are typical requirements of network automation and network operations applications. This book provides a quick overview of Go and hands-on examples within it to help you become proficient with Go for network automation. It’s a practical guide that will teach you how to automate common network operations and build systems using Go. The first part takes you through a general overview, use cases, strengths, and inherent weaknesses of Go to prepare you for a deeper dive into network automation, which is heavily reliant on understanding this programming language. You’ll explore the common network automation areas and challenges, what language features you can use in each of those areas, and the common software tools and packages. To help deepen your understanding, you’ll also work through real-world network automation problems and apply hands-on solutions to them. By the end of this book, you’ll be well-versed with Go and have a solid grasp on network automation.
Table of Contents (18 chapters)
1
Part 1: The Go Programming Language
6
Part 2: Common Tools and Frameworks
10
Part 3: Interacting with APIs

gRPC

Network automation opens a door that until recently seemed closed or at least prevented network engineers from reusing technologies that have had success in other areas, such as microservices or cloud infrastructure.

One of the most recent advances in network device management is the introduction of gRPC. We can use this high-performance RPC framework for a wide range of network operations, from configuration management to state streaming and software management. But performance is not the only thing that is appealing about gRPC. Just like with YANG and OpenAPI apps, gRPC auto-generates client and server stubs in different programming languages, which enables us to create an ecosystem of tools around the API.

In this section, we’ll go over the following topics to help you understand the gRPC API better:

  • Protobuf
  • gRPC transport
  • Defining gRPC services
  • Configuring network devices with gRPC
  • Streaming telemetry from a network device with gRPC
  • ...