ASP.net Core 2.0 and Docker

Is there any guidance on how to get an ASP.net Core 2.0 site working in Docker?  I seem to be able to get it to work if my Docker image is using "latest", but not if it is using "runtime".

If I use "latest" it gives me an error about not being able to find libraries.

Here is my journey so far:

1. Went to Docker Hub: https://hub.docker.com/r/microsoft/dotnet/
2. See there are 2.0.0 images:  2.0.0-runtime, 2.0-runtime, 2-runtime, runtime

Created an asp.net core web site:

mkdir myapp
cd myapp
dotnet new web
dotnet restore
dotnet run

That worked and brought up the template web site.  I used the gitignore from https://github.com/dotnet/core/blob/master/.gitignore.  I'm not sure if that an okay gitignore to use for a dotnet core project.

Made a dockerfile:

FROM microsoft/dotnet:2.0.0-runtime
LABEL name "myapp"

WORKDIR /app
COPY bin/Release/netcoreapp2.0/publish .

ENV ASPNETCORE_URLS http://*:5000
EXPOSE 5000

ENTRYPOINT ["dotnet","myapp.dll"]

Made a dockerignore file:

bin/Debug/*
obj/*

Published the app:

dotnet publish -c Release

Built the container(?)

docker build -t myapp .

Run the app in Docker:

docker run -p 5000:5000 -it --rm myapp

I get this error:

Error:
  An assembly specified in the application dependencies manifest (myapp.deps.json) was not found:
    package: 'Microsoft.ApplicationInsights.AspNetCore', version: '2.1.1'
    path: 'lib/netstandard1.6/Microsoft.ApplicationInsights.AspNetCore.dll'
  This assembly was expected to be in the local runtime store as the application was published using the following targe
t manifest files:
    aspnetcore-store-2.0.0-linux-x64.xml;aspnetcore-store-2.0.0-osx-x64.xml;aspnetcore-store-2.0.0-win7-x64.xml;aspnetco
re-store-2.0.0-win7-x86.xml

If I change my Dockerfile so that the first line is:

FROM microsoft/dotnet:latest

The app runs in Docker and I can see it via localhost:5000

From what I understand "runtime" is the runtime for dotnet core and "latest" includes the SDK.  When I look at the Docker image I see that the "latest" image size is 1.63GB while "runtime" is around 219-222MB.

Is there an additional step or configuration I'm missing in order to run using the "runtime" image?

I'm new using Docker and ASP.net Core so any advice is welcome.