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

Network Monitoring

Despite the popularity of configuration management, we actually spend more time monitoring networks than configuring them. As networks become more and more complex, with new layers of encapsulation and IP address translations, our ability to understand whether a network functions correctly to let us meet customer service-level agreements (SLAs) is becoming increasingly difficult.

Engineers working in the cloud infrastructure space have come up with the term observability, referring to the ability to reason about the internal state of a system by observing its external outputs. Translated into networking terms, this may include passive monitoring through logs and state telemetry collection or active monitoring using distributed probing, data processing, and visualization.

The ultimate goal of all this is to reduce the mean time to repair (MTTR), adhere to customer SLAs, and shift to proactive problem resolution. Go is a very popular language of choice for...