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

Running Go programs online

Sometimes, you need to test some code quickly or just want to share a code example with someone that might not have Go installed on their computer. In those situations, there are at least three websites where you can run and share Go code for free:

  • The Go Playground
  • The Go Play Space
  • The Gotip Playground

They all share the backend infrastructure but with subtle differences.

The Go Playground

The Go team runs the Go Playground (https://play.golang.org/) on golang.org's servers. They shared some insights and its architecture in the article Inside the Go Playground (Further reading), but more recently, Brad Fitzpatrick shared the history and the implementation details of the latest incarnation of the Go Playground (Further reading).

This service receives your program, runs it on a sandbox, and returns its output. This is very convenient if you are on your mobile phone, for example, and you want to verify the syntax of a function or something else:

Figure 2.4 – The Go Playground