Red Hat OpenShift OpenShift Application Development with RH Dev Suite, 7 Jun 2017

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From YouTube: OpenShift App Development with Red Hat Dev Suite: Part 3, Make Changes to OpenShift Clusters w/JBDS

Description

In Part 3 of the OpenShift Application Development with Red Hat Development Suite series, Veer Muchandi shows how to deploy an application into the Red Hat Development Suite environment and make changes to OpenShift clusters with JBoss Developer Studio (JBDS).

Thanks to Andre Dietisheim and Jeff Maury for their help

Check out also:
*Part 1: https://youtu.be/zVXveqFcjzs
*Part 2: https://youtu.be/UxwBB0_-9VM

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Hello welcome back. In the last video we learned how to install a CD k with the JBoss developer studio using the Red Hat development suite. Now we will see how to deploy an application into this environment. On the welcome page in Red, Hat central, you will see that there is a OpenShift application. Click on that this will connect by default to the container development environment that we just installed.

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So if you look at the connection parameters, these are already set for you, so this is pointing to the Masters URL for the CD k that got just installed and the the credentials are also set. The protocol is set to basic all this configuration information for CD k is stored in dot mini shipped folder under your user home. So if you go to your user home find the adat mini shift. Folder is a hidden folder get inside.

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You will find a file with the name CD k and that would have the setting that that are used by this is n1. So, let's move forward, and now it connects to the open shift environment. Remember that in the last video we saw that there was a project created there with the name, my project, you can use the same project to deploy or you can create a new project by clicking this button.

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Now, let's deploy a JBoss EAP application, so I'll filter by choosing EAP here and let's choose the boss, EAP 6.4, as the version of the app server in order to deploy an application I'm. Now using the an example, the code is on the github and I'm just providing the URL for my code, I'm, removing the rest of the stuff. There is no context. Eritrea ready to have reference. I'll leave rest of things as default.

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We are going to run one replica if you have used openshift from a web console all the parameters that you would try to set in the Advanced Options are all here, just go with the defaults and use the default route route and click Next and finish.

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This will create all the objects that a OC new app would create when it is creating any mid-stream, a service, a build configuration deployment, configuration and a route. Let's give it a minute for the app to be created at this point to clone the git repository to your local machine. I, leave it as clone to the default location, which is slash users, slash, we slash gate, so I will just leave it there and say finish it: lots of CO and clone the source code to my local workstation.

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So right now it's doing a git lon, so git clone is now complete. We have the application project here in the project explorer in the OpenShift Explorer tab. You will also see that there is a connection to openshift master I'm expanding. That here is that project with the name. My project inside that there is this Suri's, the name I left it as the default names and there is a build running.

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You can right click on this look at the build locks by and it shows me that hates clone the source code and it is initiating the s2 I build so we'll give it a minute for the bill to be complete and we'll come back. The build is in progress. You can see that the wave and dependencies are being downloaded. The build is now complete. You can see that it created a war file created a container order, fit push it into the registry and push your successful. Now, let's look at what's happening with the container.

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The party is now running, so you can also look at the power logs.

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These are all JBoss EEP, logs root, dot waters deployed and the application should now be running. Let's go back to the open, shipped explorer click on the service and show in the browser.

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This is our running application. Now, let's see how to make changes to this application and test it on the fly. Let's right, click on this service you can see there is. There is a server adapter here. Let's select that now we have to make sure that the part where the application is running and the project, the Eclipse project, where the code is on the local machine, are in sync. So in order to do that, we will be setting up this server adapter.

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The name of this at the repository on my local machine is matching with what is listed here and clicking on finish now. You'll see that in the server adapters there is a new server adapter that got created and it is syncing the contents between the part and this project. So the logs that you see here is a sync up between the part of the project.

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So if you again go back to the server adapters, you can see that there is a new server adapter that got created, we'll make a small change to this app welcome to open shift container platform. I'll change this to welcome jvd is integration with OpenShift I will make I'll save these changes and see what happens here.

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You can see that there are logs here that say that hey there is a root dot war deployed and a root word got to deploy, got created and the index dot XHTML, which is my the file that I change. It got synced with the part, so it has sent 54 bytes of data. From from my workstation, where I made the code change into the part which is running on OpenShift, there is a sync between the local repository and the part. So let's go back and see what happened here. The part is still running.

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I'll run this application again in browser- and here you see the changes here. So this is a java application, I'm, making co genius and as soon as I save the code, changes are synced with the part and looking at the pod logs, the logs show that the application got just redeployed. It shows the replacement of the war file.

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So in this video we have learnt how to deploy an application by using an IDE into the local openshift cluster running on cdk and how to make changes locally, not commit to a git repo yet, but still test. The code changes immediately by gently save right. There is no compilation, there is no building, it's all done automatically for you by JWoww's developer studio, and it is synced with the part. I hope you enjoyed this video hang on. There is more to show in the next video you.