How to deploy Web app using maven for Azure WebApps

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Azure AzureWebApps Java Maven Java テキストリンク

In this article, I explain how to build your web application using maven on linux(Ubuntu) into Azure WebApps for buginners.

Generate Maven project

To generate a maven project, you need to prepare an empty directory:

[Ubuntu: tempwork]$mkdir samplemaven
[Ubuntu: tempwork]$cd samplemaven/

Generate a maven project:

[Ubuntu: samplemaven]$mvn archetype:generate "-DgroupId=example.demo" "-DartifactId=helloworld" "-DarchetypeArtifactId=maven-archetype-webapp" "-Dversion=1.0-SNAPSHOT"
...
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< org.apache.maven:standalone-pom >-------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] --------------------------------[ pom ]---------------------------------
[INFO]
[INFO] >>> maven-archetype-plugin:3.2.0:generate (default-cli) > generate-sources @ standalone-pom >>>
[INFO]
[INFO] <<< maven-archetype-plugin:3.2.0:generate (default-cli) < generate-sources @ standalone-pom <<<
[INFO]
[INFO]
[INFO] --- maven-archetype-plugin:3.2.0:generate (default-cli) @ standalone-pom ---
[INFO] Generating project in Interactive mode
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  20.534 s
[INFO] Finished at: 2021-07-05T00:15:39+09:00
[INFO] ------------------------------------------------------------------------

  • archetype:generate
    means to Generate a maven project

  • -DarchetypeArtifactId
    means a based project name

  • -DgroupId
    means a project groupID

  • -DartifactId
    means a Project ID

You can see what Mave creates as follows:

[Ubuntu: samplemaven]$tree
.
└── helloworld
    ├── pom.xml
    └── src
        └── main
            ├── resources
            └── webapp
                ├── WEB-INF
                │   └── web.xml
                └── index.jsp

src/main directory is for Java source code.

Congiruge Azure Webapp infomation using maven

Configure Azure Webapp resources for deplying your Web app on your Azure using $mvn com.microsoft.azure:azure-webapp-maven-plugin:1.14.0:config.

Note that this step doesn't create a Resouce group and Webapps service yet. It just configures those info at your local repogitory.

[Ubuntu: samplemaven]$ll
total 12
drwxr-xr-x 3 tkane tkane 4096 Jul  4 23:57 ./
drwxr-xr-x 4 tkane tkane 4096 Jul  4 17:05 ../
drwxr-xr-x 3 tkane tkane 4096 Jul  4 23:57 helloworld/
[Ubuntu: samplemaven]$cd helloworld/
[Ubuntu: helloworld]$mvn com.microsoft.azure:azure-webapp-maven-plugin:1.14.0:config
...
[INFO] Scanning for projects...
[INFO]
[INFO] ----------------------< example.demo:helloworld >-----------------------
[INFO] Building helloworld Maven Webapp 1.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[INFO]
[INFO] --- azure-webapp-maven-plugin:1.14.0:config (default-cli) @ helloworld ---
[WARNING] The POM for com.microsoft.azure.applicationinsights.v2015_05_01:azure-mgmt-insights:jar:1.0.0-beta is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO] Auth type: DEVICE_CODE
To sign in, use a web browser to open the page https://microsoft.com/devicelogin and enter the code ******* to authenticate.

Go to https://microsoft.com/devicelogin, enter the code(the info is displayed in your terminal.)


then, login Azure using your account:

Then, continues the maven process. In these steps, you need to specify WebApp plan like which you want to use OS, CPU and Memory size etc. Please refer to App Service Pricing | Microsoft Azure if you want to know it in detail.

Username: [email protected]
Available subscriptions:
*  1: mytestsubsctiption
*  Please choose a subscription [mytestsubsctiption]: 1
[INFO] It may take a few minutes to load all Java Web Apps, please be patient.
[WARNING] There are no Java Web Apps in current subscription, please follow the following steps to create a new one.
Define value for OS [Linux]:
* 1: Linux
  2: Windows
  3: Docker
Enter your choice: 1
Define value for pricingTier [P1v2]:
   1: B1
   2: B2
   3: B3
   4: D1
   5: F1
*  6: P1v2
   7: P2v2
   8: P3v2
   9: S1
  10: S2
  11: S3
Enter your choice: 2
Define value for javaVersion [Java 8]:
* 1: Java 8
  2: Java 11
Enter your choice: 2
Define value for runtimeStack:
* 1: Tomcat 8.5
  2: Tomcat 9.0
Enter your choice: 1
Please confirm webapp properties
Subscription Id : *********-*******-****-*************
AppName : helloworld-1625412287998
ResourceGroup : helloworld-1625412287998-rg
Region : westeurope
PricingTier : Basic_B2
OS : Linux
Java : Java 11
Web server stack: Tomcat 8.5
Deploy to slot : false
Confirm (Y/N) [Y]: y
[INFO] Saving configuration to pom.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  01:55 min
[INFO] Finished at: 2021-07-05T00:25:32+09:00
[INFO] ------------------------------------------------------------------------

Login to Azure using Azure CLI like this:

[Ubuntu: helloworld]$az login

Create resouces on Azure and Deploy your Web app

Create a Resouce group and WebApps and deploy your Webapp:

[Ubuntu: helloworld]$mvn package azure-webapp:deploy

You may be required to login to Azure again, go to https://microsoft.com/devicelogin web site and enter the code which shows up on your terminal:

[INFO] Creating resource group helloworld-1625412287998-rg in region westeurope...
[INFO] Successfully created resource group helloworld-1625412287998-rg.
[INFO] Creating app service plan...
[INFO] Successfully created app service plan asp-helloworld-1625412287998.
[INFO] Creating web app helloworld-1625412287998...
[INFO] Successfully created Web App helloworld-1625412287998.
[INFO] Trying to deploy artifact to helloworld-1625412287998...
[INFO] Successfully deployed the artifact to https://helloworld-1625412287998.azurewebsites.net
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  03:12 min
[INFO] Finished at: 2021-07-05T00:44:41+09:00
[INFO] ------------------------------------------------------------------------
[Ubuntu: helloworld]$

You can check the above resouce group and WebApps on your Azure portal:

Also, you can access the Web application(the URL is http://<appName>.azurewebsites.net/):

Cool!

Referrence

Quickstart: Create a Java app on Azure App Service - Azure App Service | Microsoft Docs
App Service Pricing | Microsoft Azure