arulprakasht / javawebappsample

Java web app samples for Jenkins on Azure

A Simple Java Web App for Azure

Build

mvn package

Run Locally

mvn jetty:run

To run in a different port

mvn jetty:run -Djetty.port=<your port>

Debug Locally

set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,address=8000,suspend=n
mvn jetty:run

Deploy to Azure Web App using FTP

Rename the .war file in target folder to ROOT.war and upload it to your Azure Web App through Git or FTP.

Containerize Your Web App

1. Build a docker image using Dockerfile:

   docker build -t calculator .
   

2. Run docker image locally

   docker run --rm -p 8080:8080 calculator
   

3. Then you can access the web app at http://localhost:8080 in browser

Deploy to Azure Web App using Container Image

1. Create a Container Registry on Azure
2. Push your local image to ACR:

   docker login -u <client id> -p <client secret> <your ACR server>
   docker tag calculator <your ACR server>/calculator
   docker push <your ACR server>/calculator
   

3. Create a Web App in Linux on Azure
4. In Docker Container settings of Web App, fill in image name, server URL, username and password of your ACR.
5. Save the changes and you'll be able to access the web app in a few seconds.

Setup Continous Integration with Azure using Jenkins

1. Go to Settings -> Integration & services, click Add service, choose Jenkins (GitHub plugin), fill in Jenkins hook url with http://<your jenkins server>/github-webhook/

2. Make sure your Jenkins has the following components installed:

   • JDK
   • Maven
   • Docker

   And the following plugins installed:

   • Azure credentials
   • Docker pipeline
   • Credentials binding

3. To deploy using FTP, create a Jenkins pipeline with Jenkinsfile as pipeline file.

4. To deploy using container, create a Jenkins pipeline with Jenkinsfile2 as pipeline file.