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PaaS allows companies, developers to focus only on applications and services and not infrastructure. PaaS provides all the services needed to create, code, deploy and run websites, mobile services, and more.

The real challenge of the Cloud is no longer infrastructure but services and mobile applications. It is now a question of conforming to a new paradigm of application, that of the "3rd platform" defined by IDC (http://vumissociety.weebly.com/uploads/2/6/7/7/26771881/idc_-_2014_predictions.pdf): the foundations of a modern application must be based on the Cloud, the mobility, exploit the Big Data and comprise social mechanics.

The Azure PaaS has evolved a lot since the first services. It meets the challenges of Apps.

It offers integration and openness unique in the market. This offer, Azure App Service, is based on 4 essential pillars detailed below: Web Apps, Mobile Apps, Logic Apps and API Apps. Not to mention the developer dimension: SDKs, APIs, openness to multiple languages, connection with all major SaaS market, etc.

And we will never forget that it includes :

• Functions that offers you the possibility to run a code-on-demand without managing any related infrastructure, it's a "Serverless Compute Service".
• Containerized Apps where you can deploy an open source container like Kubernetes and Docker.
• Service Fabric dedicated to the distributed systems where you can package, deploy even manage them.

Now, with the IDE Visual Studio 2017 where it is included all that you need to start and deploy any application on Azure.

Let's say that we have Cloud Pattern and Architecture that let you build cloud application to ensure the scalability of your Apps and especially the resistant to failure.

Building the Sample

In our sample, we will upload a simple project ASP.NET Web API Core 2.0 where we integrated the EF Core 2.0 on Azure Apps.