The Linux DevOps Handbook : Customize and Scale Your Linux Distributions to Accelerate Your DevOps Workflow / Damian Wojslaw and Grzegorz Adamowicz.

Format:

Book

Author/Creator:

Wojslaw, Damian, author.

Adamowicz, Grzegorz, author.

Language:

English

Subjects (All):

Linux.

Operating systems (Computers).

Computer software--Development.

Computer software.

Physical Description:

1 online resource (428 pages)

Edition:

First edition.

Place of Publication:

Birmingham, England : Packt Publishing, [2023]

Biography/History:

Wojsaw Damian: Damian Wojsaw has been working in the IT industry since 2001. He specializes in administration and troubleshooting of Linux servers. Being a system operator and support engineer he has found DevOps philosophy a natural evolution of the way sysops work with developers and other members of the software team. Adamowicz Grzegorz: Grzegorz Adamowicz has been working in the IT industry since 2006 in a number of positions, including Systems Administrator, Backend Developer (PHP, Python), Systems Architect and Site Reliability Engineer. Professionally was focused on building tools and automations inside projects he is involved in. He's also engaged with the professional community by organizing events like conferences and workshops. Grzegorz worked in many industries including Oil & Gas, Hotel, Fintech, DeFI, Automotive, Space and many more.

Summary:

Build a solid foundation in DevOps and Linux systems as well as advanced DevOps practices such as configuration, IAC, and CI/CD Key Features Master Linux basics, the command line, and shell scripting Become a DevOps expert by mastering Docker, Git, monitoring, automation, and CI/CD Implement networking, manage services, and leverage Infrastructure as Code (IaC) Purchase of the print or Kindle book includes a free PDF eBook Book Description The Linux DevOps Handbook is a comprehensive resource that caters to both novice and experienced professionals, ensuring a strong foundation in Linux. This book will help you understand how Linux serves as a cornerstone of DevOps, offering the flexibility, stability, and scalability essential for modern software development and operations. You'll begin by covering Linux distributions, intermediate Linux concepts, and shell scripting to get to grips with automating tasks and streamlining workflows. You'll then progress to mastering essential day-to-day tools for DevOps tasks. As you learn networking in Linux, you'll be equipped with connection establishment and troubleshooting skills. You'll also learn how to use Git for collaboration and efficient code management. The book guides you through Docker concepts for optimizing your DevOps workflows and moves on to advanced DevOps practices, such as monitoring, tracing, and distributed logging. You'll work with Terraform and GitHub to implement continuous integration (CI)/continuous deployment (CD) pipelines and employ Atlantis for automated software delivery. Additionally, you'll identify common DevOps pitfalls and strategies to avoid them. By the end of this book, you'll have built a solid foundation in Linux fundamentals, practical tools, and advanced practices, all contributing to your enhanced Linux skills and successful DevOps implementation. What you will learn Understand how to manage infrastructure using Infrastructure as Code (IaC) tools such as Terraform and Atlantis Automate repetitive tasks using Ansible and Bash scripting Set up logging and monitoring solutions to maintain and troubleshoot your infrastructure Identify and understand how to avoid common DevOps pitfalls Automate tasks and streamline workflows using Linux and shell scripting Optimize DevOps workflows using Docker Who this book is for This book is for DevOps Engineers looking to extend their Linux and DevOps skills as well as System Administrators responsible for managing Linux servers, who want to adopt DevOps practices to streamline their operations. You'll also find this book useful if you want to build your skills and knowledge to work with public cloud technologies, especially AWS, to build and manage scalable and reliable systems.

Contents:

Cover

Title Page

Copyrights and credits

Contributors

Table of Contents

Preface

Part 1: Linux Basics

Chapter 1: Choosing the Right Linux Distribution

Technical requirements

What exactly is a Linux distribution?

What makes distributions different?

Introducing the distributions

Debian

Ubuntu Linux

Red Hat Enterprise Linux (RHEL)

Fedora Linux

CentOS

Rocky Linux

Alpine

Summary

Chapter 2: Command-Line Basics

The Linux command line - shell

Getting to know your shell

I call to thee

The filesystem structure

Running a program

The command to teach you all commands

Know your environment

Where in the PATH am I?

Know your rights

Interacting with the system

Process this

Looking for something?

Let's be manipulative

Exercises

Resources

Chapter 3: Intermediate Linux

Globs

Automating repetitive tasks

Cron jobs

Systemd timer

Software installation

Debian and Ubuntu

CentOS, RHEL, and Fedora

Alpine Linux

Managing users

Adding users

Modifying users

Removing users

Managing groups

Secure Shell (SSH) protocol

Configuring OpenSSH

Creating and managing SSH keys

Chapter 4: Automating with Shell Scripts

Backing up a database

Understanding scripting

Understanding Bash built-ins and grammar

Variables

Parameters

Loops

Conditional execution - if statement

Understanding the backup script - first steps

Handling errors and debugging

Part 2: Your Day-to-Day DevOps Tools

Chapter 5: Managing Services in Linux

Understanding Linux services in detail

The history of Linux service management

systemd

OpenRC

SysV init.

A few words about Upstart, an alternative

Chapter 6: Networking in Linux

Networking in Linux

ISO/OSI as a networking standard

Physical layer

Data link layer - MAC, VLAN

Network layer - IPv4 and IPv6

Transport layer - TCP and UDP

Session layer

Presentation layer - SSL and TLS

Application layer - HTTP and FTP

Firewalls

iptables

nftables

ufw

firewalld

Advanced topics

NAT

Port forwarding

Interface bonding

TCP multipath

BGP

Chapter 7: Git, Your Doorway to DevOps

Basic Git commands

Configuring the local Git environment

Setting up a local Git repository

Local versus remote Git repositories

Interacting with remote repositories

What's the git diff command?

Viewing the commit history

Branching

Squashing commits using an interactive rebase

Solving Git conflicts

GitFlow and GitHub Flow

Global git configuration - .gitconfig

Ignoring some files using a .gitignore configuration file

Chapter 8: Docker Basics

Virtualization versus containerization

Virtualization

Containerization

Anatomy of Docker

OverlayFS

What is an image?

What is a container runtime?

cgroups

Docker commands

docker build

docker run

docker start

docker stop

docker ps

docker login

docker pull

docker push

docker image

docker exec

docker logs

docker rm

docker rmi

docker network

docker volume

Dockerfile

FROM

COPY and ADD

EXPOSE

ENTRYPOINT and CMD

RUN

LABEL

ENV and ARG

VOLUME

USER

WORKDIR

Docker image registries

Docker networking

None network

Bridge mode

Host mode

Overlay

Chapter 9: A Deep Dive into Docker

Docker advanced use cases

Running public images.

Running a debugging container

Cleaning up unused containers

Docker volumes and bind mounts

Docker networking advanced use cases

Security features of Docker

Docker for CI/CD pipeline integration

Docker Compose

Advanced Dockerfile techniques

Multi-stage build

ADD command use cases

Secrets management

Docker orchestration

Docker Swarm

Kubernetes and OpenShift

Part 3: DevOps Cloud Toolkit

Chapter 10: Monitoring, Tracing, and Distributed Logging

Differences between monitoring, tracing, and logging

Cloud solutions

CloudWatch Logs and metrics

AWS X-Ray

Open source solutions for self-hosting

Prometheus

Grafana

SigNoz

New Relic Pixie

Graylog

Sentry

SaaS solutions

Datadog

New Relic

Ruxit

Splunk

Log and metrics retention

Full retention

Time-based retention

Event-based retention

Selective retention

Tiered retention

Chapter 11: Using Ansible for Configuration as Code

CM systems and CaC

SaltStack

Chef

Puppet

CFEngine

Ansible

Basics of using Ansible

Tasks

Roles

Plays and playbooks

Ansible Galaxy

Handling secrets

Ansible Vault

SOPS

Other solutions

Ansible Tower and alternatives

Debugging

Linting Ansible playbooks

Speeding up SSH connections

Dynamic inventory

Further reading

Chapter 12: Leveraging Infrastructure as Code

What is IaC?

IaC versus Configuration as Code

IaC projects worth knowing

AWS CloudFormation

AWS Cloud Development Kit

Terraform

Cloud Development Kit for Terraform

Pulumi

Terraform modules

Terraform state

Terraform CLI

HCL in depth

Comments

Terraform meta-arguments

Terraform examples with AWS.

EC2 instance module

Chapter 13: CI/CD with Terraform, GitHub, and Atlantis

What is CI/CD?

An example of CI/CD pipelines

Continuously integrating and deploying your infrastructure

Integration testing

Deployment

CI/CD with Atlantis

Deploying Atlantis to AWS

Running Terraform using Atlantis

Chapter 14: Avoiding Pitfalls in DevOps

Too much or not enough automation

Repetitive tasks

Time-consuming tasks

Manual and error-prone tasks

Tasks with version control integration

Tasks with repeatable patterns

Tasks with well-defined APIs or interfaces

Tasks with clear and well-defined requirements

Not understanding the technology

Stay curious and proactive

Start with the basics

Hands-on learning

Collaborate and share knowledge

Stay updated

Failure to adopt a collaborative culture

Lack of leadership

Siloed organizational structure

Lack of trust and communication

Tool-centric approach

Neglecting testing and QA

Increased software defects

Deployment failures

Security vulnerabilities

Lack of documentation

Inadequate test coverage

Lack of continuous improvement

Poor monitoring and feedback loops

Real-time

Comprehensive

Scalable

Actionable

Continuously improving

Inadequate security and compliance measures

What are security measures?

Characteristics of good security measures

Lack of scalability and flexibility

DevOps is only for small teams or projects

Inability to scale infrastructure

Flexibility compromises stability

Lack of flexibility in release management

Lack of proper documentation and knowledge sharing

Technical documentation

API documentation

User documentation

Process documentation.

Operational documentation

Release notes and changelogs

Overcoming resistance to change

Index

Other Books You May Enjoy.

Notes:

Includes index.

Description based on print version record.

ISBN:

9781803237909

1803237902

OCLC:

1407093975