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Prerequisite

Before we can start building the application, we need to have an OpenShift free account and client tools installed.

Step 1: Create DIY application

To create an application using client tools, type the following command:

rhc app create <app-name> diy-0.1

This command creates an application using DIY cartridge and clones the repository to directory.

Step 2: Delete Template Application Source code

OpenShift creates a template project that can be freely removed:

git rm -rf .openshift README.md diy misc

Commit the changes:

git commit -am "Removed template application source code"

Step 3: Pull Source code from GitHub

git remote add upstream https://github.com/kolorobot/openshift-diy-spring-boot-gradle.git
git pull -s recursive -X theirs upstream master

Step 4: Push changes

The basic template is ready to be pushed to OpenShift:

git push

The initial deployment (build and application startup) will take some time (up to several minutes). Subsequent deployments are a bit faster:

remote: BUILD SUCCESSFUL
remote: Starting DIY cartridge
remote: XNIO NIO Implementation Version 3.3.0.Final
remote: b.c.e.u.UndertowEmbeddedServletContainer : Undertow started on port(s) 8080 (http)
remote: Started DemoApplication in 15.156 seconds (JVM running for 17.209)

You can now browse to: http://<app-name>.rhcloud.com/manage/health and you should see:

{
	"status": "UP",
}

Under the hood

See: http://blog.codeleak.pl/2015/02/openshift-diy-build-spring-boot.html