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

Exploring Azure Container Instances

Azure Container Instances (ACI) is a fully managed container hosting service in Azure. While ACI provides some of the basic capabilities of container orchestrators, it should not be considered a lightweight container orchestrator. Rather, ACI can be used to complement the use of container orchestrators in the cloud. For example, virtual notes in Azure Kubernetes Service use ACI for fast, on-demand capacity. ACI comes with a full set of features and interfaces native to Azure capabilities. Applications hosted in ACI cannot be deployed to Azure Virtual Networks and integrated with on-premises networks using a side-to-side VPN.

ACI is more flexible in the deployment footprint than deploying applications to VMs directly. While Azure VMs require you to pick from a list of predetermined sizes, ACI lets you freely choose the CPU count and memory allocation for your application. ACI even supports direct integration with the SMB file share service of Azure...