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Chapter 5. Creating sample applications with .NET 9.0

5.1. Creating the MVC sample application
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s2i-dotnetcore-ex is the default Model, View, Controller (MVC) template application for .NET.

This application is used as the example application by the .NET S2I image and can be created directly from the OpenShift UI using the Try Example link.

The application can also be created with the OpenShift client binary (oc).

Procedure

To create the sample application using oc:

  1. Add the .NET application: 

    $ oc new-app dotnet:9.0-ubi8~https://github.com/redhat-developer/s2i-dotnetcore-ex#dotnet-9.0 --context-dir=app
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  2. Make the application accessible externally: 

    $ oc expose service s2i-dotnetcore-ex
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  3. Obtain the sharable URL: 

    $ oc get route s2i-dotnetcore-ex
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5.2. Creating the CRUD sample application
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s2i-dotnetcore-persistent-ex is a simple Create, Read, Update, Delete (CRUD) .NET web application that stores data in a PostgreSQL database.

Procedure

To create the sample application using oc:

  1. Add the database: 

    $ oc new-app postgresql-ephemeral
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  2. Add the .NET application: 

    $ oc new-app dotnet:9.0-ubi8~https://github.com/redhat-developer/s2i-dotnetcore-persistent-ex#dotnet-9.0 --context-dir app
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  3. Add environment variables from the postgresql secret and database service name environment variable: 

    $ oc set env dc/s2i-dotnetcore-persistent-ex --from=secret/postgresql -e database-service=postgresql
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  4. Make the application accessible externally: 

    $ oc expose service s2i-dotnetcore-persistent-ex
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  5. Obtain the sharable URL: 

    $ oc get route s2i-dotnetcore-persistent-ex
    Copy to Clipboard Toggle word wrap
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