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

Migrating a database to Azure

In Azure, you can migrate your database servers directly to Azure VMs (that is, a lift-and-shift), or you can migrate to Azure SQL Database using the PaaS model. The following figure shows the different relational database migration paths available in Azure and Azure Database Migration Service.

Figure 3.29 – Azure Database Migration Service

Figure 3.29 – Azure Database Migration Service

In most cases, companies decide to migrate to Azure SQL Managed Instance because it is simple to use with a minimal impact on business, especially if they have an additional requirement for SQL Server instance-level functionality. We can use it as a transition method to move to Azure SQL Database.

Azure SQL Database

Azure SQL Database is a relational Database as a Service (DaaS). It is a fully managed service, making it extremely easy to scale a database, something that was traditionally hard to do with a self-hosted SQL Server. You can also replicate a database in one or more...