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

Building a good CI/CD pipeline

In this book, we have dedicated a complete chapter, Chapter 6, Continuous Integration and Continuous Delivery, to the creation of CI/CD pipelines using different tools such as GitLab CI, Jenkins, and Azure Pipelines, in which we have already mentioned the prerequisites for the implementation of CI/CD pipelines.

We also discussed the CI/CD process in Chapter 14, DevOps for Open Source Projects, with some examples of a CI pipeline for open source projects such as Travis CI and GitHub Actions.

Building a good CI/CD pipeline is indeed an essential practice in DevOps culture and, together with the correct choice of tools, allows faster deployment and better-quality applications.

One of the best practices for CI/CD pipelines is to set them up as early as the project launch stage. This is especially true for the CI pipeline, which will allow the code (at...