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

Executing Postman request tests locally

So far, in Postman, we have created a collection in which two requests contain the parameters and tests of our APIs that are to be tested. To test the proper functioning of the APIs with their parameters and tests, we must now execute our requests that are in Postman. Note that it will only be at the end of this execution that we will know whether our APIs correspond to our expectations.

To execute a Postman request, perform the following actions:

  1. You must first choose the desired environment.
  2. Click on the Send button of the request, as shown in the following screenshot:
Figure 11.15 – Postman signup

Figure 11.15 – Postman signup

  1. In the Body tab, we can then view the content of the query response, and if we want to display it in JSON format, we can choose the display format. The following screenshot shows the response of the request displayed in JSON format:

Figure 11.16 – Postman...