Hi

I've been struggling with setting up umbraco 10 with Docker, so I was hoping you could push me in the right direction.

I have created a brand new Umbraco with the newest dotnet sdk installed on mac.

$ dotnet new umbraco --name Umbraco10Test

And then I can publish it by doing

$ dotnet publish Umbraco10Test.csproj --configuration Release --no-restore --output ./app
$ cd app
$ dotnet Umbraco10Test.dll

And then I can go to http://localhost:5000 and install my Umbraco. So far so good. And if in my appsettings.json file add:

 "Kestrel": {
   "Endpoints": {
     "properties": {
       "Url": "http://localhost:4000"  
     }
   } 
 }

I am able to change to port listening to 4000 instead of 5000.

Cool. Now I want to put it into Docker. I have created this Dockerfile.

########################
### build
########################
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build

ARG PROJECT

WORKDIR /src

ENV PROJECT=${PROJECT}

COPY . .

RUN dotnet restore "${PROJECT}.csproj"

RUN dotnet publish "${PROJECT}.csproj" --configuration Release --no-restore --output /app

########################
### final
########################
FROM mcr.microsoft.com/dotnet/aspnet:6.0 

ARG PROJECT

WORKDIR /app

ENV ASPNETCORE_URLS "http://*:4000"

ENV DLL="${PROJECT}.dll"

COPY --from=build /app .

RUN echo "#!/bin/sh\ndotnet ${DLL}" > ./entrypoint.sh
RUN chmod +x ./entrypoint.sh

EXPOSE 4000

ENTRYPOINT ["./entrypoint.sh"]

And then I build and run the docker with this:

$ docker build --no-cache --progress=plain -t umbraco10test_docker --build-arg PROJECT=Umbraco10Test .
$ docker run --rm -d -p 4000:4000 --name umbraco10 umbraco10test_docker

If i try and go to http://localhost:4000 then I get a ERR_EMPTY_RESPONSE error page, and if I try to curl this I get a curl: (52) Empty reply from server

If I docker exec -it umbraco10 /bin/bash into the running container and try execute the same entrypoint.sh file created by the Dockerfile, I get this error:

Unhandled exception. System.IO.IOException: Failed to bind to address http://127.0.0.1:4000: address already in use.
 ---> Microsoft.AspNetCore.Connections.AddressInUseException: Address already in use
 ---> System.Net.Sockets.SocketException (98): Address already in use
   at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)

So it seems to be runnning. I have a suspicion that it has to do with https and ssl, and another port or maybe 0.0.0.0 vs 127.0.0.1, but can figure it out. Hope you can help me :)

Cheers

Peter