Chapter 4. Publishing applications with .NET Core 3.1

Procedure

1. Publish the framework-dependent application:

   $ dotnet publish my-app -f netcoreapp3.1 -c Release

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   Replace my-app with the name of the application you want to publish.

2. Optional: If the application is for RHEL only, trim out the dependencies needed for other platforms:

   $ dotnet restore my-app -r rhel.7-x64
   $ dotnet publish my-app -f netcoreapp3.1 -c Release -r rhel.7-x64 --self-contained false

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3. Enable the Software Collection and pass the application name to run the application on a RHEL system:

   $ scl enable rh-dotnet31 -- dotnet <app>.dll

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4. You can add the scl enable rh-dotnet31 — dotnet <app>.dll command to a script that is published with the application.

   Add the following script to your project and update the APP variable:

   #!/bin/bash
   
   APP=<app>
   SCL=rh-dotnet31
   DIR="$(dirname "$(readlink -f "$0")")"
   
   scl enable $SCL -- "$DIR/$APP" "$@"

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5. To include the script when publishing, add this ItemGroup to the csproj file:

   <ItemGroup>
       <None Update="<scriptname>" Condition="'$(RuntimeIdentifier)' == 'rhel.7-x64' and '$(SelfContained)' == 'false'" CopyToPublishDirectory="PreserveNewest" />
   </ItemGroup>

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