Book Image

Learning DevOps - Second Edition

By : Mikael Krief
Book Image

Learning DevOps - Second Edition

By: Mikael Krief

Overview of this book

In the implementation of DevOps processes, the choice of tools is crucial to the sustainability of projects and collaboration between developers and ops. This book presents the different patterns and tools for provisioning and configuring an infrastructure in the cloud, covering mostly open source tools with a large community contribution, such as Terraform, Ansible, and Packer, which are assets for automation. This DevOps book will show you how to containerize your applications with Docker and Kubernetes and walk you through the construction of DevOps pipelines in Jenkins as well as Azure pipelines before covering the tools and importance of testing. You'll find a complete chapter on DevOps practices and tooling for open source projects before getting to grips with security integration in DevOps using Inspec, Hashicorp Vault, and Azure Secure DevOps kit. You'll also learn about the reduction of downtime with blue-green deployment and feature flags techniques before finally covering common DevOps best practices for all your projects. 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 (25 chapters)
1
Section 1: DevOps and Infrastructure as Code
7
Section 2: DevOps CI/CD Pipeline
11
Section 3: Containerized Microservices with Docker and Kubernetes
14
Section 4: Testing Your Application
18
Section 5: Taking DevOps Further/More on DevOps

Creating a local VM using the Vagrant CLI

Now that we have written the configuration file, we can create our VM locally.

To perform this, we will use several Vagrant CLI commands. To display all of the available commands, we will run the vagrant --help command:

Figure 5.9 – Displaying the Vagrant commands

Figure 5.9 – Displaying the Vagrant commands

Note

All details about the Vagrant CLI commands are documented at https://www.vagrantup.com/docs/cli.

In the next section we will learn how to create the VM, then we will connect to this VM, and finally we will perform some scripts.

Creating the VM

To create the VM, navigate to the folder in which we created the Vagrantfile file, and run the following command:

vagrant up

The output is shown in the following screenshot:

Figure 5.10 – The Vagrant up execution workflow

Figure 5.10 – The Vagrant up execution workflow

The execution of the preceding command performs the following steps:

  1. Import the box from Vagrant Cloud.
  2. Create...