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Deploy Your Business Application to Cloud Foundry

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Deploy Your Business Application to Cloud Foundry
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Deploy Your Business Application to Cloud Foundry

Paola Laufer
Paola Laufer
October 21, 2020
Created by
Paola Laufer
July 26, 2020
Beginner
15 min.
SAP Business Application Studio, SAP Cloud Application Programming Model, Tutorial, Beginner
Deploy your CAP Node.js application to Cloud Foundry using SAP Business Application Studio.

You will learn

  • How to test your application using SAP HANA
  • How to deploy your application to Cloud Foundry
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Prerequisites

  • You have an SAP HANA service (SAP HANA as a Service or SAP HANA Cloud) available in your space.
    To create a new instance in your trial account:
    1. Go to your space in the SAP Cloud Platform cockpit.
    2. Go to Service Marketplace.
    3. Select SAP HANA Schemas & HDI Containers (SAP HANA Trial).
    4. Click Create New Instance.
    5. Select hdi-shared as the service plan and provide a name for the new instance.
    6. Click Create Instance.

In the previous tutorial we created a simple bookshop app and tested it with a local database. Now we will first test the application with an SAP HANA database as used on Cloud Foundry and deploy it to Cloud Foundry.

Step 1: Configure the dependency to SAP HANA
View Full Instructions

  1. In SAP Business Application Studio, open the package.json file.

  2. Copy and paste the following dependency definition:

      "cds": {
    "requires": {
      "db": {
        "kind": "hana"
      }
    }
  }

  3. Save your changes.

The result should look as follows:

SAP HANA dependencies
Done
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Step 2: Run your app with SAP HANA

  1. In the Run Configurations view, open the run configuration you previously created and make sure that the dependencies have changed and that you can see a dependency to db(hana).

    Run COnfiguration SAP HANA dependencies

    The Run Configuration view allows you to bind to the specific SAP HANA instance with which you want your application to run. It will automatically install all the required dependencies and offer you to deploy your data model. (It actually generates a deploy task that you can run at any given time.) Moreover, it generates a connection in the SQLTOOLS view, so you can instantly check the data in your database.

  2. Click the Bind icon to the right of the db dependency. A list of SAP HANA service instances from your space is presented (you may need to log into Cloud Foundry).

    Bind to an SAP HANA service

  3. Select the SAP HANA service instance to which you want to bind the dependency.

    Bind options

    The bind action runs and the dependency is now bound. You will get notifications regarding which tasks are run, and regarding the creation of a new SQL tools connection .

  4. After a few moments, a dialog box asking you to deploy your data model is displayed. Choose Yes.

    The deployment task runs. Make sure it completes successfully.

  5. Open the SQLTOOLS view.

  6. Click on the connection created for your SAP HANA instance.

  7. Open the Authors tables, and click on the magnifier glass icon next to it.

    Tables

  8. In the editor tab that opens, browse the table data and make sure it is correct.

  9. Click the green arrow on the right of the configuration name to run the application.

    Run the application

  10. When prompted, click Open.

    The application opens in the browser and you can click to see the metadata and entities of the service. The data is now retrieved from the SAP HANA database in your Cloud Foundry space.

  11. Stop the application by clicking Stop in the Debug pane.

What does the Bind action do?
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Step 3: Deploy your application to Cloud Foundry

  1. From the terminal on the bookshop folder, run cds add mta.
    This adds an mta.yaml file to the root of your application.

    Note: If you are working on a trial account, open the mta.yaml file, and in the resources section change the service parameter to hanatrial. Save your changes.

  2. Right-click the mta.yaml file and choose Build MTA.

    Build MTA

    A new folder for mta_archives is created containing the new mtar file.

  3. Right-click the mtar file and choose Deploy MTA Archive.

    Deploy MTA

Once the task is complete, your application should be available in your Cloud Foundry space.
To access your application, go to your space in the SAP Cloud Platform cockpit and select Applications from the side menu.

Done
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Next Steps

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