Can't build image with --no-restore

[georgiosd]

Hey guys :)

I'm using a Dockerfile inspired by the stock example:

FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build

WORKDIR /source
COPY api/*.csproj app/
WORKDIR /source/app
RUN dotnet restore

WORKDIR /source
COPY api/ app/
WORKDIR /source/app
RUN dotnet publish -c release -o /app --self-contained false --no-restore

FROM mcr.microsoft.com/dotnet/aspnet:7.0
WORKDIR /app
COPY --from=build /app ./

ENTRYPOINT ["./app"]

The publish step keeps failing with:

 > [build 9/9] RUN dotnet publish -c release -o /app --self-contained false --no-restore:
#16 0.836 MSBuild version 17.4.0+18d5aef85 for .NET
#16 1.904 /usr/share/dotnet/sdk/7.0.101/Sdks/Microsoft.NET.Sdk/targets/Microsoft.PackageDependencyResolution.targets(267,5): error NETSDK1005: Assets file '/source/app/obj/project.assets.json' doesn't have a target for 'net7.0'. Ensure that restore has run and that you have included 'net7.0' in the TargetFrameworks for your project. [/source/app/xxxxx.csproj]

The csproj is nothing exotic:

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net7.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
....

Any ideas? I haven't been able to find a solution online.

[georgiosd]

Busted, had to add .dockerignore:

# directories
**/bin/
**/obj/

# files
Dockerfile*