Book Image

Hands-On Linux for Architects

By : Denis Salamanca, Esteban Flores
Book Image

Hands-On Linux for Architects

By: Denis Salamanca, Esteban Flores

Overview of this book

It is very important to understand the ?exibility of an infrastructure when designing an efficient environment. In this book, you will cover everything from Linux components and functionalities through to hardware and software support, which will help you to implement and tune effective Linux-based solutions. This book gets started with an overview of Linux design methodology. Next, you will focus on the core concepts of designing a solution. As you progress, you will gain insights into the kinds of decisions you need to make when deploying a high-performance solution using Gluster File System (GlusterFS). In the next set of chapters, the book will guide you through the technique of using Kubernetes as an orchestrator for deploying and managing containerized applications. In addition to this, you will learn how to apply and configure Kubernetes for your NGINX application. You’ll then learn how to implement an ELK stack, which is composed of Elasticsearch, Logstash, and Kibana. In the concluding chapters, you will focus on installing and configuring a Saltstack solution to manage different Linux distributions, and explore a variety of design best practices. By the end of this book, you will be well-versed with designing a high-performing computing environment for complex applications to run on. By the end of the book, you will have delved inside the most detailed technical conditions of designing a solution, and you will have also dissected every aspect in detail in order to implement and tune open source Linux-based solutions
Table of Contents (22 chapters)
Free Chapter
1
Section 1: High-Performance Storage Solutions with GlusterFS
7
Section 2: High-Availablility Nginx Web Application Using Kubernetes
12
Section 3: Elastic Stack
16
Section 4: System Management Using Saltstack

Setting up the bricks used for backend storage

The following is the list of components that we'll be using:

  • Azure L4s VM with 4vCPUs and 32 GB of RAM
  • Four S10 128 GB Disks per VM
  • CentOS 7.5
  • ZFS on Linux as the filesystem for the bricks
  • A single RAID 0 group with four disks
  • GlusterFS 4.1

Azure deployment

Before going into the details of how to configure the bricks, we first need to deploy the nodes in Azure. For this example, we are using the storage optimized VM series, or L-series. One thing that is worth mentioning is that Azure has a 30-day free trial that can be used for testing before committing to any deployment.

In Azure, performance is defined on several levels. The first level is the VM limit, which is the...