I've got a .NET Core project (using visual studio and adding the docker files via the Visual Studio Tools for Docker).
My DockerFile
looks like this:
FROM microsoft/dotnet:1.0.1-core
ARG source=.
WORKDIR /app
COPY $source .
ENTRYPOINT ["dotnet", "MyApp.dll"]
CMD ["arg1", "arg2"]
My question is, how do I pass parameters into the project?
public static void Main(string[] args)
{
// how does `args` get populated?
}
I used environment variables which can be set by docker-compse.yml too
public static class EnvironmentHelper
{
public const string EnvironmentArguments = "DOTNETCORE_ARGUMENTS";
private static string[] _arguments;
public static string[] Arguments
{
get
{
bool argumentsExist = _arguments != null && _arguments.Any();
if (!argumentsExist)
{
IDictionary environmentVariables = Environment.GetEnvironmentVariables();
if (!environmentVariables.Contains(EnvironmentArguments))
{
throw new Exception("Environment Arguments do not exist");
}
var argumentsHolder = environmentVariables[EnvironmentArguments] as string;
const char argumentSeparator = ' ';
_arguments = argumentsHolder?.Split(argumentSeparator);
}
return _arguments;
}
}
}