{
    "install_additional_dotnet": {
        "image": "ubuntu:focal",
        "features": {
            "dotnet": {
                "version": "6.0.301",
                "additionalVersions": "5.0,3.1.420"
            }
        }
    },
    "install_dotnet_3": {
        "image": "ubuntu:focal",
        "features": {
            "dotnet": {
                "version": "3"
            }
        }
    },
    "install_dotnet_5": {
        "image": "ubuntu:focal",
        "features": {
            "dotnet": {
                "version": "5"
            }
        }
    }
}