Alpine docker image does not obey local timezone anymore #59636
Description
Description
The release 6.0.0-rc.1 does not obey the local timezone information. This is a regression, see the following steps to reproduce
Steps to reproduce
private static void Main(string[] args)
{
Console.WriteLine(TimeZoneInfo.Local.DisplayName);
}
Working
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
WORKDIR /build
COPY src/Foo.sln .
COPY src/Foo/*.csproj ./Foo/
RUN dotnet restore ./Foo.sln
COPY src/Foo/ ./Foo/
FROM build as publish
WORKDIR /build/Foo
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/aspnet:5.0-alpine AS runtime
RUN apk update --no-cache && apk upgrade --no-cache
RUN apk add --no-cache tzdata
ENV TZ=Europe/Berlin
ENV LANG=de_DE.UTF-8
ENV LANGUAGE=${LANG}
ENV LC_ALL=${LANG}
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
WORKDIR /app
COPY --from=publish /build/Foo/out ./
ENTRYPOINT [ "dotnet", "Foo.dll" ]
This will produce the following output
(UTC+01:00) CET
Bug
When you now take the same code, change target framework from net5.0 to net6.0 and use the same Dockerfile as a base and use mcr.microsoft.com/dotnet/sdk:6.0 and mcr.microsoft.com/dotnet/aspnet:6.0-alpine, you will get the following output
(UTC+00:00) Coordinated Universal Time