After migrating my app to .NET 8.0 I cannot run it on k8s because of 'Error: UPGRADE FAILED: context deadline exceeded'. Message in pod logs indicate more specific issue which is:
My dockerfile:
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443
FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
WORKDIR /src
COPY ["src/MyApi/MyApi.csproj", "src/MyApi/"]
RUN dotnet restore "src/MyApi/MyApi.csproj"
COPY . .
WORKDIR "/src/src/MyApi"
RUN dotnet build "MyApi.csproj" -c Release -o /app/build
FROM build AS publish
RUN dotnet publish "MyApi.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MyApi.dll"]
And my Dockerfile.publish:
FROM mcr.microsoft.com/dotnet/runtime:8.0
ENV ASPNETCORE_ENVIRONMENT=Docker
EXPOSE 80
WORKDIR /app
COPY . .
HEALTHCHECK --interval=30s --timeout=10s CMD curl -f http://localhost/health || exit 1
ENTRYPOINT ["dotnet", "MyApi.dll"]
When in my Dockerfile.publish I have FROM mcr.microsoft.com/dotnet/runtime:6.0 then at least I can see in logs that framework for NET.6 is found. I have no idea what could be wrong as locally Api is working as expected.
