generate-docker-compose should use docker, add .sh

docker-compose-generator/Dockerfile

@@ -0,0 +1,19 @@
+FROM microsoft/aspnetcore-build:2.0.6-2.1.101-stretch AS builder
+WORKDIR /source
+COPY src/docker-compose-generator.csproj docker-compose-generator.csproj
+# Cache some dependencies
+RUN dotnet restore
+COPY src/. .
+RUN dotnet publish --output /app/ --configuration Release
+
+FROM microsoft/aspnetcore:2.0.6-stretch
+WORKDIR /app
+
+RUN mkdir /datadir
+ENV APP_DATADIR=/datadir
+VOLUME /datadir
+
+COPY --from=builder "/app" .
+COPY docker-fragments docker-fragments
+
+ENTRYPOINT ["dotnet", "docker-compose-generator.dll"]