Chapter 2. Release Notes

Click the Launcher Application link to display the New Launcher project wizard.

Figure 2.3. New Launcher project Wizard

In the Project name field, type myfirstrestapp and let the other fields be as-is.

Figure 2.4. Setting the fields in the New Launcher project Wizard

Click the myfirstrestapp project and right click Team → Share project​.

Figure 2.6. Share Project

Select the Git repository type and click Next.

Figure 2.7. Configuring the Git Repository

Click the Use or create repository in parent folder of project checkbox then select the myfirstrestapp project.

Figure 2.8. Additional Git Configuration

Click Create Repository and then click Finish. The Project Explorer view is updated.

Figure 2.9. Updated Project Explorer View

Click the myfirstrestapp project and right-click Team → Show in Repositories View. The new Git Repositories view is added to the perspective.

Figure 2.10. A new Git Repositories view added

In the Git Repositories view, select the Remotes node and right-click Create Remote. The New Remote dialog box displays.

Figure 2.11. New Remote Dialog Box

Click OK, the Configure Push window displays.

Figure 2.12. The Configure Push window

In the myfirstrestapp project, create a new JSON file called springboot.json and set the content of this file to the following.

{
    "apiVersion": "image.openshift.io/v1",
    "kind": "ImageStream",
	"metadata": {
		"name": "springboot"
	},
    "spec": {
        "lookupPolicy": {
            "local": false
        },
        "tags": [
            {
                "annotations": {
					"tags": "builder,java"
				},
                "from": {
                    "kind": "DockerImage",
                    "name": "registry.access.redhat.com/fuse7/fuse-java-openshift:1.1"
                },
                "importPolicy": {},
                "name": "1.1",
                "referencePolicy": {
                    "type": "Source"
                }
            }
        ]
    }
}

In the OpenShift Explorer view, select the OpenShift connection for your cluster (if you don’t have one already defined, you must define it). Right-click New → Resource. The Select resource payload window displays.

Figure 2.18. Select resource payload window

Select the OpenShift project that you want to work with and then click Browse Workspace. Select the springboot.json file in the myfirstrestapp project.

Figure 2.19. Select an OpenShift resource window

Click OK and then click Finish. The new ImageStream is created and a status dialog displays.

Figure 2.20. Results of creating the resource window

Select the running pod in the OpenShift Explorer view, right-click the Server Adapter. The Server Settings window displays.

Figure 2.26. Server Settings window

Click OK; the initial synchronization begins and the Servers view displays.

Figure 2.27. Servers view

So far, you have not set up the synchronization between the local Eclipse project and the remote OpenShift project. Each modification done locally will be reported on the remote OpenShift cluster.

Edit the src/main/java/io/openshift/booster/service/Greeting.java file in the myfirstrestapp project and change the FORMAT string value from Hello, %s! to Hello, Mr %s! and save the file.

/*
 * Copyright 2016-2017 Red Hat, Inc, and individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.openshift.booster.service;

// tag::snippet-greeting[]
public class Greeting {

    public static final String FORMAT = "Hello, Mr %s!";

    private final String content;

    public Greeting() {
        this.content = null;
    }

    public Greeting(String content) {
        this.content = content;
    }

    public String getContent() {
        return content;
    }
}
// end::snippet-greeting[]

In the ÒpenShift Explorer view, select the myfirstrestapp deployment and select Show In → Web Browser. After the web browser displays, click Invoke.

Figure 2.28. myfirstrestapp in the web browser

The preceding sections show the inner loop on your Spring Boot application. Any change done locally is reported and can be tested almost immedialtely on your OpenShift cluster.