Chapter 2. Using .NET Core 2.1 on Red Hat Enterprise Linux 8

Procedure

1. Create a new Console application in a directory called my-app:

   $ dotnet new console --output my-app

   The output returns:

     The template "Console Application" was created successfully.
   
     Processing post-creation actions...
     Running 'dotnet restore' on my-app/my-app.csproj...
     Restoring packages for /home/username/my-app/my-app.csproj...
     Generating MSBuild file /home/username/my-app/obj/my-app.csproj.nuget.g.props.
     Generating MSBuild file /home/username/my-app/obj/my-app.csproj.nuget.g.targets.
     Restore completed in 224.85 ms for /home/username/my-app/my-app.csproj.
   
     Restore succeeded.

   A simple Hello World console application is created from a template. The application is stored in the specified my-app directory.

   The directory includes the following files:

   $ tree my-app
   my-app
   ├── my-app.csproj
   ├── obj
   │   ├── my-app.csproj.nuget.dgspec.json
   │   ├── my-app.csproj.nuget.g.props
   │   ├── my-app.csproj.nuget.g.targets
   │   ├── project.assets.json
   │   └── project.nuget.cache
   └── Program.cs
   
   1 directory, 7 files

Procedure

1. Create a new MVC project in a directory called mvc_runtime_example:

   $ dotnet new mvc --output mvc_runtime_example --no-restore

2. Restore and publish the project:

   $ dotnet restore mvc_runtime_example -r rhel.8-x64
   $ dotnet publish mvc_runtime_example -f netcoreapp2.1 -c Release -r rhel.8-x64 --self-contained false /p:MicrosoftNETPlatformLibrary=Microsoft.NETCore.App

3. Create the Dockerfile:

   $ cat > Dockerfile <<EOF
   FROM registry.access.redhat.com/ubi8/dotnet-21-runtime
   
   ADD bin/Release/netcoreapp2.1/publish/ .
   
   CMD ["dotnet", "mvc_runtime_example.dll"]
   EOF

4. Build your image:

   $ podman build -t dotnet-21-runtime-example .

5. Run your image:

   $ podman run -d -p8080:8080 dotnet-21-runtime-example