Practical Site Reliability Engineering

coverpage

Title Page

Dedication

About Packt

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Contributors

About the authors

About the reviewers

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Preface

Who this book is for

What this book covers

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Download the example code files

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Conventions used

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Demystifying the Site Reliability Engineering Paradigm

Setting the context for practical SRE

Characterizing the next-generation software systems

Characterizing the next-generation hardware systems

Moving toward hybrid IT and distributed computing

Envisioning the digital era

The cloud service paradigm

The ubiquity of cloud platforms and infrastructures

The growing software penetration and participation

Plunging into the SRE discipline

The challenges ahead

The need for highly reliable platforms and infrastructures

The need for reliable software

The emergence of microservices architecture

Docker enabled containerization

Containerized microservices

Kubernetes for container orchestration

Resilient microservices and reliable applications

Reactive systems

Reactive systems are highly reliable

The elasticity of reactive systems

Highly reliable IT infrastructures

The emergence of serverless computing

The vitality of the SRE domain

The importance of SREs

Toolsets that SREs typically use

Summary

Microservices Architecture and Containers

What are microservices?

Microservice design principles

Deploying microservices

Container platform-based deployment tools

Code as function deployment

Programming language selection criteria in AWS Lambda

Virtualization-based platform deployment

Practical examples of microservice deployment

A container platform deployment example with Kubernetes

Code as function deployment

Example 1 – the Apex deployment tool

Example 2 – the Apex deployment tool

Example 3 – the Serverless deployment tool

Virtual platform-based deployment using Jenkins or TeamCity

Microservices using Spring Boot and the RESTful framework

Jersey Framework

Representational State Transfer (REST)

Deploying the Spring Boot application

Monitoring the microservices

Application metrics

Platform metrics

System events

Tools to monitor microservices

Important facts about microservices

Microservices in the current market

When to stop designing microservices

Can the microservice format be used to divide teams into small or micro teams?

Microservices versus SOA

Summary

Microservice Resiliency Patterns

Briefing microservices and containers

The containerization paradigm

IT reliability challenges and solution approaches

The promising and potential approaches for resiliency and reliability

MSA is the prominent way forward

Integrated platforms are the need of the hour for resiliency

Summary

DevOps as a Service

What is DaaS?

Selecting tools isn't easy

Types of services under DaaS

An example of one-click deployment and rollback

Configuring automated alerts

Centralized log management

Infrastructure security

Continuous process and infrastructure development

CI and CD

CI life cycle

CI tools

Installing Jenkins

Jenkins setup for GitHub

Setting up the Jenkins job

Installing Git