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    Docker High Performance: Complete your Docker journey by optimizing your application's work?ows and performance, 2nd Edition
    Docker High Performance: Complete your Docker journey by optimizing your application's work?ows and performance, 2nd Edition
    Docker High Performance: Complete your Docker journey by optimizing your application's work?ows and performance, 2nd Edition
    Ebook272 pages1 hour

    Docker High Performance: Complete your Docker journey by optimizing your application's work?ows and performance, 2nd Edition

    By Espinosa Allan and Russ McKendrick

    ()

    Read preview

    About this ebook

    Leverage Docker to unlock efficient and rapid container deployments to improve your development workflow




    Key Features



    • Reconfigure Docker hosts to create a logging system with the ElasticSearch-Logstash-Kibana (ELK) stack


    • Tackle the challenges of large-scale container deployment with this fast-paced guide


    • Benchmark the performance of your Docker containers using Apache JMeter





    Book Description



    Docker is an enterprise-grade container platform that allows you to build and deploy your apps. Its portable format lets you run your code right from your desktop workstations to popular cloud computing providers. This comprehensive guide will improve your Docker work?ows and ensure your application's production environment runs smoothly.






    This book starts with a refresher on setting up and running Docker and details the basic setup for creating a Docker Swarm cluster. You will then learn how to automate this cluster by using Chef Server and Cookbook. After that, you will run the Docker monitoring system with Prometheus and Grafana, and deploy the ELK stack. You will also learn some tips for optimizing Docker images.






    After deploying containers with the help of Jenkins, you will then move on to a tutorial on using Apache JMeter to analyze your application's performance. You will learn how to use Docker Swarm and NGINX to load-balance your application and how common debugging tools in Linux can be used to troubleshoot Docker containers.






    By the end of this book, you will be able to integrate all the optimizations that you have learned and put everything into practice in your applications.





    What you will learn



    • Automate provisioning and setting up nodes in a Docker Swarm cluster


    • Configure a monitoring system with Prometheus and Grafana


    • Use Apache JMeter to create workloads for benchmarking the performance of Docker containers


    • Understand how to load-balance an application with Docker Swarm and Nginx


    • Deploy strace, tcdump, blktrace, and other Linux debugging tools to troubleshoot containers


    • Integrate Docker optimizations for DevOps, Site Reliability Engineering, CI, and CD





    Who this book is for



    If you are a software developer with a good understanding of managing Docker services and the Linux file system and are looking for ways to optimize working with Docker containers, then this is the book for you. Developers fascinated with containers and workflow automation with benefit from this book.

    LanguageEnglish
    PublisherPackt Publishing
    Release dateApr 30, 2019
    ISBN9781789804409
    Docker High Performance: Complete your Docker journey by optimizing your application's work?ows and performance, 2nd Edition

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      Book preview

      Docker High Performance - Espinosa Allan

      Docker High Performance, Second Edition

      Docker High Performance

      Second Edition

      Complete your Docker journey by optimizing your application's workflows and performance

      Allan Espinosa

      Russ McKendrick

      BIRMINGHAM - MUMBAI

      Docker High Performance Second Edition

      Copyright © 2019 Packt Publishing

      All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

      Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author(s), nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.

      Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

      Commissioning Editor: Vijin Boricha

      Acquisition Editor: Aditi Gour

      Content Development Editor: Roshan Kumar

      Technical Editor: Adya Anand

      Copy Editor: Safis Editing

      Project Coordinator: Namrata Swetta

      Proofreader: Safis Editing

      Indexer: Tejal Daruwale Soni

      Graphics: Jisha Chirayil

      Production Coordinator: Jisha Chirayil

      First published: January 2016

      Second edition: April 2019

      Production reference: 1300419

      Published by Packt Publishing Ltd.

      Livery Place

      35 Livery Street

      Birmingham

      B3 2PB, UK.

      ISBN 978-1-78980-721-9

      www.packtpub.com

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      Did you know that Packt offers eBook versions of every book published, with PDF and ePub files available? You can upgrade to the eBook version at www.packt.com and as a print book customer, you are entitled to a discount on the eBook copy. Get in touch with us at customercare@packtpub.com for more details.

      At www.packt.com, you can also read a collection of free technical articles, sign up for a range of free newsletters, and receive exclusive discounts and offers on Packt books and eBooks. 

      Contributors

      About the authors

      Allan Espinosa is a DevOps practitioner and an active open source contributor to various distributed system tools, such as Docker and Chef. Allan maintains several Docker images for popular open source software that were popular even before their official release from the upstream open source groups.

      Throughout his career, Allan has worked on large distributed systems containing hundreds to thousands of servers in production. He has built scalable applications on various platforms, ranging from large supercomputing centers to production clusters in the enterprise. He is currently managing distributed systems at scale for Bloomberg, where he oversees the company's Hadoop infrastructure. Allan can be contacted through his Twitter handle, @AllanEspinosa. 

      I would like to thank my wife, Kana, for the continuous support that allowed me to spend significant time with this project.

      Russ McKendrick is an experienced system administrator who has been working in IT and related industries for over 25 years. During his career, he has had varied responsibilities, from looking after an entire IT infrastructure to providing first-line, second-line, and senior support in both client-facing and internal teams for large organizations.

      Russ supports open source systems and tools on public and private clouds at N4Stack, a Node4 company, where he is the practice manager (SRE and DevOps). In his spare time, he has written several books including Mastering Docker, Learn Ansible and Kubernetes for Serverless Applications, all published by Packt Publishing.

      About the reviewer

      Shashikant Bangera is a lead DevOps architect working for a multinational IT service provider. He specializes in architecting automated, efficient delivery pipelines to help build software rapidly and effectively. He has extensive experience with the cloud, containers, and DevOps tools and process. He has worked across a variety of domains, and designed DevOps processes and automation for large-scale projects. He is an open source enthusiast and has multiple projects under his name on GitHub. He has a master's degree from Welingkar University. 

      Packt is searching for authors like you

      If you're interested in becoming an author for Packt, please visit authors.packtpub.com and apply today. We have worked with thousands of developers and tech professionals, just like you, to help them share their insight with the global tech community. You can make a general application, apply for a specific hot topic that we are recruiting an author for, or submit your own idea.

      Table of Contents

      Title Page

      Copyright and Credits

      Docker High Performance Second Edition

      About Packt

      Why subscribe?

      Packt.com

      Contributors

      About the authors

      About the reviewer

      Packt is searching for authors like you

      Preface

      Who this book is for

      What this book covers

      To get the most out of this book

      Download the example code files

      Download the color images

      Conventions used

      Get in touch

      Reviews

      Preparing Docker Hosts

      Preparing a Docker host

      Enabling remote access

      Setting up a certificate authority

      Enabling remote access in Docker Engine

      Connecting remotely from the Docker client

      Building a Docker Swarm cluster

      Summary

      Configuring Docker with Chef

      Importance of configuration management

      Using Chef

      Signing up for a Chef server

      Setting up our workstation

      Bootstrap nodes

      Configuring the Docker host

      Writing Chef recipes

      Push Chef policies

      Initializing Docker Swarm

      Alternative methods

      Summary

      Monitoring Docker

      The importance of monitoring

      Collecting metrics with Prometheus

      Exposing Prometheus's metrics

      Scraping and visualizing metrics

      Consolidating logs in an ELK stack

      Deploying Elasticsearch, Logstash, and Kibana

      Forwarding Docker container logs

      Other monitoring and logging solutions

      Summary

      Optimizing Docker Images

      Reducing deployment time

      Improving image build time

      Using registry mirrors

      Reusing image layers

      Reducing the build context size

      Using caching proxies

      Reducing Docker image size

      Chaining commands

      Separating build and deployment images

      Guide to Optimization

      Summary

      Deploying Containers

      Deploying and configuring Jenkins

      Deploying the Jenkins container

      Finishing the Jenkins Configuration

      Setting up our Docker credentials within Jenkins

      Building and deploying a container

      Preparing our application

      Creating a Jenkins job

      Running the Pipeline

      Summary

      Benchmarking

      Setting up Apache JMeter

      Deploying a sample application

      Installing JMeter

      Building a benchmark workload

      Creating a test plan in JMeter

      Analyzing benchmark results

      Viewing the results of JMeter runs

      Calculating throughput

      Plotting response time

      Observing performance in Grafana and Kibana

      Tuning the benchmark

      Increasing concurrency

      Running distributed tests

      Other benchmarking tools

      Summary

      Load Balancing

      Preparing application backends

      Balancing load with NGINX

      Scaling out our Docker applications

      Deploying with zero downtime

      Other load balancers

      Summary

      Troubleshooting Containers

      Inspecting containers with the docker exec command

      Debugging from outside Docker

      Tracing system calls

      Analyzing network packets

      Observing block devices

      Other container debugging tools

      Summary

      Onto Production

      Performing web operations

      Supporting web applications with Docker

      Deploying applications

      Scaling applications

      Further reading

      Summary

      Other Books You May Enjoy

      Leave a review - let other readers know what you think

      Preface

      Docker is an enterprise-grade container platform that allows you to build and deploy your apps. Its portable format lets you run your code anywhere, from your desktop workstation, to popular cloud computing providers. This book will help you realize the full potential of Docker.

      In this book, you will learn a lot about how Docker works. You will learn the basics of Docker, along with some of the fundamental concepts of web operations. You will gain knowledge of Docker and the relevant operating system concepts to get a deeper understanding of what is happening behind the scenes. You will also learn a lot about the tools to deploy and troubleshoot our Docker containers in production in a scalable and manageable fashion.

      Who this book is for

      If you are a software developer with a good understanding of managing Docker services and the Linux file system, and are looking for ways to optimize working with Docker containers, then this is the book for you. Developers fascinated by containers and workflow automation will also benefit from this book.

      What this book covers

      Chapter 1, Preparing Docker Hosts, helps you familiarize yourself with Docker Engine and how to prepare a Docker host. We will then build a PKI to ensure secure communication between our Docker host and our Docker client workstation. We will also build a small Docker Swarm cluster, consisting of multiple Docker hosts.

      Chapter 2, Configuring Docker with Chef, shows how to automate the configuration of our Docker deployments. We will also use Chef, a piece of configuration management software, to manage Docker hosts in scale.

      Chapter 3, Monitoring Docker, helps us to understand the importance of monitoring and collecting metrics in Prometheus. We will also learn how to consolidate logs in an ELK stack.

      Chapter 4, Optimizing Docker Images, discusses optimizing our Docker images and improving our development workflow. We will also learn to reduce image deployment time and improve image build time.

      Chapter 5, Deploying Containers, looks at how we can use Jenkins to build, distribute, and deploy our containerized application. We will also learn to build and deploy a simple application using a three-stage pipeline.

      Chapter 6, Benchmarking, helps us create benchmarks to gauge the performance of our Docker application.

      Chapter 7, Load Balancing, talks about how to scale out our Docker applications to increase our capacity. We will use load balancers, which are a key component in the architecture of various web scale applications. We will also learn to balance load with NGINX.

      Chapter 8, Troubleshooting Containers, inspects containers with Docker exec, and help us understand what debugging is, along with other container debugging tools.

      Chapter 9, Onto Production, wraps up the book by teaching us how to perform web operations. We will also learn to deploy and scale our applications.

      To get the most out of this book

      A Linux workstation with a recent

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