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Alpine Docker images no longer have tzdata package in 3.0 #1366
Description
Alpine Docker images no longer have tzdata package in 3.0
Beginning with the 3.0 release, the tzdata package has been removed from all Alpine Docker images.
Details
This package was removed because it wasn't required for the main set of scenarios and to have consistency between the runtime-deps images across all Linux distros. This package is still installed in the 2.x images for Alpine so this will be something to be aware of when migrating from 2.x to 3.0.
You may be impacted by this if you use any of the Alpine images for 3.0 and your code has a dependency on the tzdata package, such as using the System.TimeZoneInfo API. In that case, you'll need to update your Dockerfile to explicitly install the package:
RUN apk add --no-cache tzdata
Activity
seroche commentedon Oct 4, 2019
We deployed our first .net core microservice to our UAT environment 3 days ago. It took me few hours to find out that
tzdatawas missing from the docker package! @mj1856 you should probably document this. Anyone usingTZConvertwithin an Alpine docker will have to include this package.mattjohnsonpint commentedon Oct 19, 2019
@seroche - Added here. Thanks.
tushi0407 commentedon Mar 20, 2020
Hello Sorry for commenting on closed post.
But actually i am facing the same issue here. I am using ubuntu based dot net core image 3.0 .
My aim is very simple, i just need to find out current CST time.
I have installed the tzdata package but still getting ResponseMessage: "System.TimeZoneNotFoundException: Exception of
type 'System.TimeZoneNotFoundException' was thrown.↵ at TimeZoneConverter.TZConvert.GetTimeZoneInfo(String windowsOrIanaTimeZoneId)↵
Here is my docker file :
`FROM mcr.microsoft.com/dotnet/core/sdk:3.0-bionic AS build-env
WORKDIR /app
ADD UbuntuScript.sh /UbuntuScript.sh
RUN /UbuntuScript.sh
Copy everything else and build
COPY . ./
RUN dotnet publish xyz -c Release -o out
Build runtime image
FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-bionic
WORKDIR /app
#COPY --from=build-env /app/out .
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "xyz.dll"]`
Ubuntu Script file :
set noninteractive installation
export DEBIAN_FRONTEND=noninteractive
#install tzdata package
apt-get update
apt-get install tzdata -y
set your timezone
ln -fs /usr/share/zoneinfo/America/New_York /etc/localtime
dpkg-reconfigure --frontend noninteractive tzdata
dot net core code where i am using
TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, TimeZoneConverter.TZConvert.GetTimeZoneInfo("Central Standard Time"));
@mj1856 @mthalman please help, i m sure i am missing some small thing.
mthalman commentedon Mar 20, 2020
@tushi0407 - Have you verified
tzdatais installed in the image where your app is contained? From what you pasted, it looks like you're installing the package into your SDK image rather than your runtime image.tushi0407 commentedon Mar 20, 2020
Thanks for your reply @mthalman , Actually I am very new to docker. So could you please help me how I can check that? What needs to be change on docker file?
tushi0407 commentedon Mar 21, 2020
Thanks @mthalman ..it is resolved now.I was doing the same mistake . I have changed the place where i was installing tzdata.Now i am installing it under run time image.I have placed
ADD UbuntuScript.sh /UbuntuScript.sh RUN /UbuntuScript.shjust afterFROM ../dotnet/core/aspnet:3.1-bionic WORKDIR /app. It is working now.Add tzdata package for timezone info