File configuration.json missing in docker build

[alexanderfast]

Repro:

$ git clone https://github.com/TanukiSharp/MinimalNugetServer.git
$ cd MinimalNugetServer/MinimalNugetServer/scripts
$ chmod +x make_publishable.sh
$ ./make_publishable.sh
$ cd ../..
$ docker build -t minimal-nuget-server -f Dockerfile .
$ docker run --rm minimal-nuget-server

Unhandled Exception: System.IO.FileNotFoundException: The configuration file 'configuration.json' was not found and is not optional. The physical path is '/dotnetapp/configuration.json'.
   at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
   at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
   at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
   at MinimalNugetServer.Program.Main(String[] args) in /src/MinimalNugetServer/Program.cs:line 25

But running manually works (after the above):

$ cd MinimalNugetServer
$ dotnet run

So something is definitely up with the docker packaging.

[TanukiSharp]

I fixed that by setting a project property to copy the configuration.json file when building.
That also work when the Dockerfile calls the publish command.

See commit e9d0cad

Keep in mind that the default configuration is just a sample, you have to modify it to match your environment before building your Docker image.

Let me know how it goes. Thanks.