Book Image

Mastering Linux Administration

By : Alexandru Calcatinge, Julian Balog
Book Image

Mastering Linux Administration

By: Alexandru Calcatinge, Julian Balog

Overview of this book

Linux plays a significant role in modern data center management and provides great versatility in deploying and managing your workloads on-premises and in the cloud. This book covers the important topics you need to know about for your everyday Linux administration tasks. The book starts by helping you understand the Linux command line and how to work with files, packages, and filesystems. You'll then begin administering network services and hardening security, and learn about cloud computing, containers, and orchestration. Once you've learned how to work with the command line, you'll explore the essential Linux commands for managing users, processes, and daemons and discover how to secure your Linux environment using application security frameworks and firewall managers. As you advance through the chapters, you'll work with containers, hypervisors, virtual machines, Ansible, and Kubernetes. You'll also learn how to deploy Linux to the cloud using AWS and Azure. By the end of this Linux book, you'll be well-versed with Linux and have mastered everyday administrative tasks using workflows spanning from on-premises to the cloud. If you also find yourself adopting DevOps practices in the process, we'll consider our mission accomplished.
Table of Contents (20 chapters)
Section 1: Linux Basic Administration
Section 2: Advanced Linux Server Administration
Section 3: Cloud Administration

Installing and configuring Kubernetes

Before installing or using Kubernetes, you have to decide on the infrastructure you'll use, on-premises or public cloud. Second, you'll have to choose between an Infrastructure as a Service (IaaS) or Platform as a Service (PaaS) model. With IaaS, you'll have to install, configure, manage, and maintain the Kubernetes cluster yourself, either on physical (bare metal) or virtual machines. The related operation efforts are not straightforward and should be considered carefully. If you choose a PaaS solution, available from all major public cloud providers, you'll be limited to only administrative tasks but saved from the burden of maintaining the underlying infrastructure.

In this chapter, we'll cover both IaaS and PaaS deployments of Kubernetes. For IaaS, we'll use a local desktop environment running Ubuntu virtual machines. Then, we'll look at Kubernetes in AWS and Azure.

For the on-premises installation,...