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Create and deploy a basic Java Spring application

We have applications available for Node.js Express, Go Gin, Python Flask, Python Django, Java Spring, Java Liberty, Swift Kitura, Android, and iOS.

In this sample application, you will create a basic Java cloud application using Spring. This provides a good starting point for creating Java microservice applications running on Spring. It contains no default application code, but comes with standard best practices, including a health check.

Capabilities are provided through dependencies in the pom.xml file. The ports are set to the defaults of 8080 for http and 8443 for https and are exposed to the CLI in the cli-config.yml file. The ports are set in the pom.xml file and exposed to the CLI in the cli-config.yml file.

The application exposes the following endpoints:

Steps

Deploying to IBM Cloud

IBM Cloud DevOps services provides toolchains as a set of tool integrations that support development, deployment, and operations tasks inside IBM Cloud.

Building Locally

To get started building this application locally, you can either run the application natively or use the IBM Cloud Developer Tools for containerization and easy deployment to IBM Cloud.

Native Application Development

To build and run an application:

  1. mvn install
  2. java -jar ./target/javaspringapp-1.0-SNAPSHOT.jar

To run an application in Docker use the Docker file called Dockerfile. If you do not want to install Maven locally you can use Dockerfile-tools to build a container with Maven installed.

You can verify the state of your locally running application using the Selenium UI test script included in the scripts directory.

IBM Cloud Developer Tools

Install IBM Cloud Developer Tools on your machine by running the following command:

curl -sL https://ibm.biz/idt-installer | bash

Create an application on IBM Cloud by running:

ibmcloud dev create

This will create and download a starter application with the necessary files needed for local development and deployment.

Your application will be compiled with Docker containers. To compile and run your app, run:

ibmcloud dev build
ibmcloud dev run

This will launch your application locally. When you are ready to deploy to IBM Cloud on Kubernetes, run one of the following commands:

ibmcloud dev deploy -t container // to K8s cluster

You can build and debug your app locally with:

ibmcloud dev build --debug
ibmcloud dev debug

CRA Scanning

This repository includes a .cracveomit file that is used by Code Risk Analyzer (CRA) in IBM Cloud Continuous Delivery. This file helps address vulnerabilities that are found by CRA until a remediation is available, at which point the vulnerabilities will be addressed in the respective package versions. CRA keeps the code in this repository free of known vulnerabilities, and therefore helps make applications that are built on this code more secure. If you are not using CRA, you can safely ignore this file.

License

This sample application is licensed under the Apache License, Version 2. Separate third-party code objects invoked within this code pattern are licensed by their respective providers pursuant to their own separate licenses. Contributions are subject to the Developer Certificate of Origin, Version 1.1 and the Apache License, Version 2.

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