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Shay Shmeltzer's Oracle Development Tools Tips

Leveraging Application Profiles to Switch Backend Servers with Visual Builder Studio

Shay Shmeltzer
Director of Product Management - Oracle

Last year I wrote a blog post showing how to switch REST backend as part of the CI/CD of your Visual Builder application. Since then we released both an update to Visual Builder - which included the new servers, backends, and profiles features - as well as the new Visual Builder Studio - which provides a declarative way to define CI/CD automation for VB apps. So, I thought it would be a good idea to show how you combine the two to automate deployment that uses the specific backend you need.

The key to the simplification of the process is the use of Application Profiles - a feature that we introduced in our March 2020 release. App profiles work together with the concepts of services and backends to define a "pluggable" set of servers your app connects to. You can define multiple profiles for an app, and in each one contains a different set of servers that will be used by the application. The server definition can dynamically control not just the server end point, but also aspects like the authentication the services need, the headers, and even the way you reach them (direct or through our proxy). More about these features in these two blogs by Aparna part1, part2

In the video below I start by creating a new server connection that has the same REST endpoint but on a different server with a different authentication schema.

Then I define a new application profile, that will be using the new server definition to access data.

Next we are switching to Visual Builder Studio - where we leverage the new Oracle Deployment build step to define a CI/CD pipeline that deploys our app. I have one deploy job that uses one profile (dev), and then I run another deploy job that deploy using the alternative app profile (qa).

As you'll see while the application behaves the same in both cases the data is different in each deployment since they are coming from different sources.

It's important to mention that VBS is just providing your with an easy to use declarative interface to define deployment (and packaging) for VB apps. If you need to do the work from outside VBS, you can use the VB grunt commands that do app packaging and deployment. These grunt commands now have a new "profile" parameter used to indicate which profile to use.

With this approach you can have the same code base (which is stored in your Git repo) deploy to different location with different backends. All in an automated way.

 

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