I am using below code to add certificate in pod/container's certificate root store,

 var cert = new X509Certificate2(Convert.FromBase64String(File.ReadAllText("/etc/secret/certfile")));
            X509Store store = new X509Store(StoreName.Root, StoreLocation.CurrentUser);
            store.Open(OpenFlags.ReadWrite);
            store.Add(new X509Certificate2(cert));
            store.Close();

But getting below error,

System.Security.Cryptography.CryptographicException: The X509 certificate could not be added to the store. ---> System.UnauthorizedAccessException: Access to the path '/.dotnet/corefx/cryptography/x509stores/root' is denied. ---> System.IO.IOException: Permission denied

I have below docker file which I am using,

 FROM mcr.microsoft.com/dotnet/aspnet:3.1-alpine
 RUN apk upgrade -U
 EXPOSE 5000 7000
 ENV ASPNETCORE_URLS=http://*:5000
 WORKDIR /app
 COPY . /app
 USER guest
 ENTRYPOINT ["dotnet", "Test.Web.dll"]