Book Image

A Developer's Guide to Cloud Apps Using Microsoft Azure

By : Hamida Rebai Trabelsi
Book Image

A Developer's Guide to Cloud Apps Using Microsoft Azure

By: Hamida Rebai Trabelsi

Overview of this book

Companies face several challenges during cloud adoption, with developers and architects needing to migrate legacy applications and build cloud-oriented applications using Azure-based technologies in different environments. A Developer’s Guide to Cloud Apps Using Microsoft Azure helps you learn how to migrate old apps to Azure using the Cloud Adoption Framework and presents use cases, as well as build market-ready secure and reliable applications. The book begins by introducing you to the benefits of moving legacy apps to the cloud and modernizing existing ones using a set of new technologies and approaches. You’ll then learn how to use technologies and patterns to build cloud-oriented applications. This app development book takes you on a journey through three major services in Azure, namely Azure Container Registry, Azure Container Instances, and Azure Kubernetes Service, which will help you build and deploy an application based on microservices. Finally, you’ll be able to implement continuous integration and deployment in Azure to fully automate the software delivery process, including the build and release processes. By the end of this book, you’ll be able to perform application migration assessment and planning, select the right Azure services, and create and implement a new cloud-oriented application using Azure containers and orchestrators.
Table of Contents (20 chapters)
1
Part 1 – Migrating Applications to Azure
6
Part 2 – Building Cloud-Oriented Applications Using Patterns and Technologies in Azure
10
Part 3 – PaaS versus CaaS to Deploy Containers in Azure
14
Part 4 – Ensuring Continuous Integration and Continuous Deployment on Azure
17
Assessments

Orchestrating microservices and multi-container applications

In the last chapter, we prepared the environment for Docker and installed Docker Desktop to deploy containers locally. Now, we will enable Kubernetes using the GUI tool of Docker Desktop by following these steps:

  1. Open Docker Desktop and click on the settings icon in the top-right of the screen:
Figure 9.6 – Docker Desktop settings

Figure 9.6 – Docker Desktop settings

  1. Select Kubernetes from the left panel and check Enable Kubernetes, then click on Apply & Restart.
  2. A new dialog window will be displayed to confirm the Kubernetes cluster installation. Select Install:
Figure 9.7 – Kubernetes Cluster Installation dialog

Figure 9.7 – Kubernetes Cluster Installation dialog

  1. Let’s run the kubectl command to display the Pods that are part of the Kubernetes system:
    kubectl get pods -n kube-system

The result is presented in the following figure:

Figure 9.8 – List of Pods in the Kubernetes system

Figure 9.8 – List of Pods...