Supported tags and respective
For more information about this image and its history, please see the relevant manifest file (library/alpine). This image is updated via pull requests to the docker-library/official-images GitHub repo.
For detailed information about the virtual/transfer sizes and individual layers of each of the above supported tags, please see the alpine/tag-details.md file in the docker-library/docs GitHub repo.
What is Alpine Linux?
Alpine Linux is a Linux distribution built around musl libc and BusyBox. The image is only 5 MB in size and has access to a package repository that is much more complete than other BusyBox based images. This makes Alpine Linux a great image base for utilities and even production applications. Read more about Alpine Linux here and you can see how their mantra fits in right at home with Docker images.
How to use this image
Use like you would any other base image:
RUN apk add --no-cache mysql-client
This example has a virtual image size of only 16 MB. Compare that to our good friend Ubuntu:
RUN apt-get update \
&& apt-get install -y mysql-client \
&& rm -rf /var/lib/apt/lists/*
This yields us a virtual image size of about 232 MB image.
This image is well documented. Check out the documentation at Viewdocs.
Supported Docker versions
This image is officially supported on Docker version 1.11.2.
Support for older versions (down to 1.6) is provided on a best-effort basis.
Please see the Docker installation documentation for details on how to upgrade your Docker daemon.
Documentation for this image is stored in the alpine/ directory of the docker-library/docs GitHub repo. Be sure to familiarize yourself with the repository's README.md file before attempting a pull request.
If you have any problems with or questions about this image, please contact us through a GitHub issue. If the issue is related to a CVE, please check for a cve-tracker issue on the official-images repository first.
You can also reach many of the official image maintainers via the #docker-library IRC channel on Freenode.
You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.
Before you start to code, we recommend discussing your plans through a GitHub issue, especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.