Deploying a Vaadin Application to Azure Cloud

How to deploy your Vaadin application to Microsoft’s Azure cloud.

Step 1: Install the Azure CLI
Step 2: Download a Starter App
Step 3: Add the Azure Plugin
Step 4: Create a Production Build
Step 5: Configure Your Application
Step 6: Deploy Your Application

This tutorial shows you how to deploy a Vaadin application to Microsoft’s Azure cloud using the traditional App Service, that works well for most typical Vaadin applications. If you have specific requirements, Azure has several other options to host Vaadin applications, such as raw virtual machines, and Container Apps (which are used in the tutorial). Azure also has great Kubernetes support.

Azure offers a 30-day free trial that includes 12 months of free commercial services. You can find details of their free and commercial services on the Azure website.

Note	Azure account required To complete this tutorial, you need an Azure account. You can sign up at https://signup.azure.com/.

Step 1: Install the Azure CLI

You can find installation instructions for different platforms in the Azure CLI documentation.

Step 2: Download a Starter App

Download a minimal Vaadin project and unpack the downloaded zip into a folder on your computer.

Download project

Step 3: Add the Azure Plugin

Open your pom.xml file and add the following section in the <plugins> tag in the <build> section:

<plugin>
  <groupId>com.microsoft.azure</groupId>
  <artifactId>azure-webapp-maven-plugin</artifactId>
  <version>2.5.0</version>
</plugin>

Check the latest version of the plugin from the Azure App Service docs.

Step 4: Create a Production Build

Open the project directory from a terminal window, and enter the following command to generate a JAR file of your application:

mvn package -Pproduction

Step 5: Configure Your Application

From the terminal window, enter the following command:

mvn azure-webapp:config

This command authenticates you with Azure via the browser, assuming you aren’t already logged in with Azure CLI. Then you are prompted to choose from various options. For example, you could select the following:

<create> when asked to choose a Java SE Web App
Linux when asked to choose an OS
Java 11 for the Java version
F1 for the pricingTier
Enter 'Y' on your keyboard to confirm

Step 6: Deploy Your Application

Enter the following command to deploy your application:

mvn azure-webapp:deploy

You may be required to authenticate again in the browser. Once authenticated, your application is deployed to Azure and you should see your application URL in the logs, as in the following screenshot.

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