Book Image

Learning DevOps

By : Mikael Krief
Book Image

Learning DevOps

By: Mikael Krief

Overview of this book

The implementation of DevOps processes requires the efficient use of various tools, and the choice of these tools is crucial for the sustainability of projects and collaboration between development (Dev) and operations (Ops). This book presents the different patterns and tools that you can use to provision and configure an infrastructure in the cloud. You'll begin by understanding DevOps culture, the application of DevOps in cloud infrastructure, provisioning with Terraform, configuration with Ansible, and image building with Packer. You'll then be taken through source code versioning with Git and the construction of a DevOps CI/CD pipeline using Jenkins, GitLab CI, and Azure Pipelines. This DevOps handbook will also guide you in containerizing and deploying your applications with Docker and Kubernetes. You'll learn how to reduce deployment downtime with blue-green deployment and the feature flags technique, and study DevOps practices for open source projects. Finally, you'll grasp some best practices for reducing the overall application lead time to ensure faster time to market. By the end of this book, you'll have built a solid foundation in DevOps, and developed the skills necessary to enhance a traditional software delivery process using modern software delivery tools and techniques
Table of Contents (23 chapters)
Free Chapter
1
Section 1: DevOps and Infrastructure as Code
6
Section 2: DevOps CI/CD Pipeline
9
Section 3: Containerized Applications with Docker and Kubernetes
12
Section 4: Testing Your Application
16
Section 5: Taking DevOps Further

Using AKS

A production Kubernetes cluster can often be complex to install and configure. This type of installation requires the availability of servers, human resources who have the requisite skills regarding the installation and management of a K8S cluster, and especially the implementation of an enhanced security policy to protect the applications.

To overcome these problems, cloud providers offer managed Kubernetes cluster services. This is the case with Amazon with EKS, Google with Kubernetes Engine, and finally, Azure with AKS. In this section, I propose an overview of AKS, while also highlighting the advantages of a managed Kubernetes cluster.

AKS is, therefore, an Azure service that allows us to create and manage a real Kubernetes cluster as a managed service.

The advantage of this managed Kubernetes cluster is that we don't have to worry about its hardware installation...