DevOps Handbook: DevOps eBook for IT Professionals

Table of Content

DevOps Tutorial

DevOps Architecture

DevOps Lifecycle

DevOps Workflow

DevOps Tools:

DevOps Automation:

DevOps Engineers:

DevOps Pipeline:

Azure DevOps:

AWS DevOps:

DevOps Training Certifications

DevOps vs. Agiles

The Significance of Bash in DevOps

Terraform Destroy Command:

Terraform For Loop

Terraform Format Explained:

Terraform Output Command:

Terraform Output: Enabling Access to Provisioned Infrastructure Information

Terraform tfstate: Managing Infrastructure State

This eBook is based on DevOps that has been collected from different sources and people. For more information about this ebook. Kindly write to [email protected]. I will happy to help you.

Copyright 2023 by Poonam Devi

This eBook is a guide and serves as a next part of first guide.

This book has been written on the advice of many experts and sources who have good command over DevOps, network an programming. They are listed at the end of this book.

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DevOps Tutorial

DevOps, short for Development and Operations, represents a cultural shift that emphasizes the collaborative integration of the development and operational processes. It aims to streamline the entire application lifecycle, from development and testing to deployment and ongoing operations. This DevOps tutorial serves as a comprehensive resource to grasp the fundamentals of DevOps, along with an in-depth exploration of various essential DevOps tools like Git, Ansible, Docker, Puppet, Jenkins, Chef, Nagios, and Kubernetes.

What is DevOps?

DevOps merges the realms of software development and operations into a unified approach where a single team manages the entire application lifecycle. This includes development, testing, deployment, and ongoing operations. DevOps addresses the disconnection that often exists between software developers, quality assurance (QA) engineers, and system administrators.

DevOps fosters collaboration between the Development and Operations teams, enabling automated and repeatable code deployments to production. It accelerates an organization's ability to deliver applications and services, ultimately enhancing customer service and competitive positioning in the market. DevOps can be defined as a sequential process of development and IT operations, marked by improved communication and collaboration. DevOps has evolved into a crucial business discipline for enterprises, significantly improving the quality and speed of application delivery. DevOps essentially entails bringing Developers and Operations teams together, representing a cultural shift in IT that prioritizes rapid IT service delivery through agile practices and a system-oriented approach.

DevOps revolves around the integration of development and operational processes. Enterprises that adopt DevOps have reported a 22% enhancement in software quality, a 17% increase in application deployment frequency, and a 22% boost in customer satisfaction. Successful DevOps implementations have led to a 19% increase in revenue.

Why DevOps?

Before delving deeper, it's essential to understand why DevOps is preferred over other approaches: Dev and Ops Teams Working in Isolation: Traditionally, development and operations teams operated independently, leading to inefficiencies and communication gaps. Sequential Testing and Deployment: Testing and deployment occurred after the design-build phase, resulting in extended project timelines.

Time Consumption in Manual Processes: Without DevOps, significant time was spent on manual processes such as designing, testing, and deploying, diverting focus from actual project development.

Human Errors in Manual Deployments: Manual code deployment often resulted in human errors during production. Lack of Synchronization: Development and operation teams followed separate timelines, causing further delays and misalignment.

DevOps History

The history of DevOps unfolds as