Book Image

Cloud-Native Observability with OpenTelemetry

By : Alex Boten
Book Image

Cloud-Native Observability with OpenTelemetry

By: Alex Boten

Overview of this book

Cloud-Native Observability with OpenTelemetry is a guide to helping you look for answers to questions about your applications. This book teaches you how to produce telemetry from your applications using an open standard to retain control of data. OpenTelemetry provides the tools necessary for you to gain visibility into the performance of your services. It allows you to instrument your application code through vendor-neutral APIs, libraries and tools. By reading Cloud-Native Observability with OpenTelemetry, you’ll learn about the concepts and signals of OpenTelemetry - traces, metrics, and logs. You’ll practice producing telemetry for these signals by configuring and instrumenting a distributed cloud-native application using the OpenTelemetry API. The book also guides you through deploying the collector, as well as telemetry backends necessary to help you understand what to do with the data once it's emitted. You’ll look at various examples of how to identify application performance issues through telemetry. By analyzing telemetry, you’ll also be able to better understand how an observable application can improve the software development life cycle. By the end of this book, you’ll be well-versed with OpenTelemetry, be able to instrument services using the OpenTelemetry API to produce distributed traces, metrics and logs, and more.
Table of Contents (17 chapters)
1
Section 1: The Basics
3
Chapter 2: OpenTelemetry Signals – Traces, Metrics, and Logs
5
Section 2: Instrumenting an Application
10
Section 3: Using Telemetry Data

Technical requirements

If you've already completed Chapter 4, Distributed Tracing, or Chapter 5, Metrics - Recording Measurements, the setup here will be quite familiar. Ensure the version of Python in your environment is at least Python 3.6 by running the following commands:

$ python --version
$ python3 --version

This chapter will rely on the OpenTelemetry API and SDK packages that are installable via pip with the following command. The examples in this chapter are using the version 1.9.0 opentelemetry-api and opentelemetry-sdk packages:

$ pip install opentelemetry-api \
              opentelemetry-sdk \
              opentelemetry-propagator-b3

Important Note

The OpenTelemetry examples in this chapter rely on an experimental release of the logging signal for OpenTelemetry. This means it's possible that by the time you...