Docker + Alpine Linux - AspNetCore.SassCompiler.targets(11,5): error : Error running sass compiler:

I have edited this issue now that I have done some more research and have create a bare repository to help demo the issue:

The issue seems to be when building with an Alpine Linux Docker image with AspNetCore.SassCompiler.

If you inherit from the usual FROM mcr.microsoft.com/dotnet/sdk:6.0 Ubuntu image then all builds and works as normal however if you inherit from the Alpine version FROM mcr.microsoft.com/dotnet/sdk:6.0-alpine then you get build errors such as:

#14 0.508 Microsoft (R) Build Engine version 17.2.0+41abc5629 for .NET
#14 0.508 Copyright (C) Microsoft Corporation. All rights reserved.
#14 0.508
#14 2.574 /root/.nuget/packages/aspnetcore.sasscompiler/1.52.3/build/AspNetCore.SassCompiler.targets(11,5): error : Error running sass compiler:  [/source/aspnetcore-alpine-sass.csproj]
#14 2.574 /root/.nuget/packages/aspnetcore.sasscompiler/1.52.3/build/AspNetCore.SassCompiler.targets(11,5): error : . [/source/aspnetcore-alpine-sass.csproj]
#14 5.668   aspnetcore-alpine-sass -> /source/bin/release/net6.0/linux-musl-x64/aspnetcore-alpine-sass.dll
#14 5.732   aspnetcore-alpine-sass -> /app/
------
executor failed running [/bin/sh -c dotnet publish -c release -o /app -r linux-musl-x64 --no-self-contained --no-restore]: exit code: 1

I think it may have something to do with dart sass itself.

I have created a repo to demonstrate the bug and have a little more info in the readme.md over there.

https://github.com/solrevdev/aspnetcore-alpine-sass

Desktop (please complete the following information):

 OS: 64bit Mac OS X 10.15.7 19H1922
 Kernel: x86_64 Darwin 19.6.0
 Uptime: 2h 43m
 Packages: 547
 Shell: zsh 5.9
 Resolution: 1920x1080
 DE: Aqua
 WM: Quartz Compositor
 WM Theme: Blue
 Disk: 11G / 480G (5%)
 CPU: Intel Core i7-3615QM @ 2.30GHz
 GPU: Intel HD Graphics 4000
 RAM: 8217MiB / 16384MiB

dotnet --info
.NET SDK (reflecting any global.json):
 Version:   6.0.300
 Commit:    8473146e7d

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.15
 OS Platform: Darwin
 RID:         osx.10.15-x64
 Base Path:   /usr/local/share/dotnet/sdk/6.0.300/

Host (useful for support):
  Version: 6.0.5
  Commit:  70ae3df4a6

.NET SDKs installed:
  3.1.419 [/usr/local/share/dotnet/sdk]
  6.0.300 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.25 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.25 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

[solrevdev]

Thanks @a-van-rooyen for your glibc-2.34-r0.apk fix.

Very interesting! Happy to see that it compiles successfully now 😄

Damn version compatibility 😂

[solrevdev]

Very interesting!

So that didn’t work for me yet your 3 lines compiled. Yours uses glibc-2.34-r0.apk whereas I grabbed from the source site glibc-2.35-r0.apk

https://github.com/CargoSense/dart_sass#compatibility-with-alpine-linux-mix-sass-default-exited-with-2 verses https://github.com/sgerrand/alpine-pkg-glibc#installing

See my comments

FROM mcr.microsoft.com/dotnet/sdk:6.0-alpine AS build
WORKDIR /source

RUN apk update
- #RUN apk add gcompat

+ # THIS FROM YOURS COMPILES! https://github.com/CargoSense/dart_sass#compatibility-with-alpine-linux-mix-sass-default-exited-with-2
+ #RUN wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
+ #RUN wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.34-r0/glibc-2.34-r0.apk
+ #RUN apk add glibc-2.34-r0.apk
+ 
+ # THIS FROM SOURCE SITE DOES NOT https://github.com/sgerrand/alpine-pkg-glibc#installing
+ RUN wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub
+ RUN wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.35-r0/glibc-2.35-r0.apk
+ RUN apk add glibc-2.35-r0.apk

COPY ./ ./
RUN dotnet restore -r linux-musl-x64
RUN dotnet publish -c release -o /app -r linux-musl-x64 --no-self-contained --no-restore

FROM mcr.microsoft.com/dotnet/aspnet:6.0-alpine-amd64
WORKDIR /app
COPY --from=build /app ./

EXPOSE 80
ENV ASPNETCORE_URLS=http://+:80
ENTRYPOINT ["dotnet", "aspnetcore-alpine-sass.dll"]