Chapter 5. Running .NET Core 3.1 applications in containers

Procedure

1. Optional: If you are in another project’s directory and do not wish to create a nested project, return to the parent directory of the project:

   $ cd ..

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

   $ dotnet new mvc --output mvc_runtime_example

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3. Publish the project:

   $ dotnet publish mvc_runtime_example -f netcoreapp3.1 -c Release

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4. Create the Dockerfile:

   $ cat > Dockerfile <<EOF
   FROM registry.redhat.io/dotnet/dotnet-31-runtime-rhel7
   
   ADD bin/Release/netcoreapp3.1/publish/ .
   
   CMD ["dotnet", "mvc_runtime_example.dll"]
   EOF

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5. Build your image:

   $ podman build -t dotnet-31-runtime-example .

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   Note

   If you get an error containing the message unable to retrieve auth token: invalid username/password, you need to provide credentials for the registry.redhat.io server. Use the command podman login registry.redhat.io to log in. Your credentials are typically the same as those used for the Red Hat Customer Portal.

6. Run your image:

   $ podman run -d -p8080:8080 dotnet-31-runtime-example

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