prantlf/alpine-glibc

Docker image: Alpine Linux with GNU C Library (glibc) for compatibility

This image is supposed to serve as a base for small images (Alpine Linux) which need to include tools built against GNU C Library (glibc). This image is built automatically on the top of the tag latest from the Alpine repository, so that it is always based on the latest Alpine Linux. The package alpine-pkg-glibc has to be updated from time to time by editing the Dockerfile and triggering a new build manually.

If you have trouble pulling the image from the Docker's default hub.docker.com, try gitlab.com, where this project is primarily maintained: registry.gitlab.com/prantlf/docker-alpine-glibc.

Tags

Tags consist of versions of the Alpine Linux and GLIBC in this order, separated by a hyphen. The latest tag maps to the latest <alpine> tag. The latest <alpine> tag maps to the latest <alpine>-<glibc> tag. The bin and <alpine>-bin tags contain the glibc-bin package installed too.

• latest, bin
• 3.16, 3.16-bin, 3.16-2.35, 3.16-2.35-bin
• 3.15, 3.15-bin, 3.14, 3.14-2.34, 3.14-2.33, 3.13, 3.12

Install

docker pull prantlf/alpine-glibc
docker pull prantlf/alpine-glibc:3.16

Use

You can create your own image based on this one by referring to it from your Dockerfile:

FROM prantlf/alpine-glibc:latest

The final image can use the English locale by setting the environment variable LANG to C.UTF-8 or en_US.UTF-8.

See the git-p4 Docker image repository for an example.

If you install glibc-i18n-2.34-r0.apk and create a locale by /usr/glibc-compat/bin/localedef, you will need to unpack the charmap. For example:

gunzip --keep /usr/glibc-compat/share/i18n/charmaps/UTF-8.gz
/usr/glibc-compat/bin/localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8

It appears, that installing another package using apk breaks the symlink to ld-linux-x86-64.so.2 in /lib64. If it happens to you, restore the symlink after executing apk:

ln -sf /usr/glibc-compat/lib/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2

Build, Test and Publish

The local image is built as alpine-glibc and pushed to the docker hub as prantlf/alpine-glibc:latest.

# Remove an old local image:
make clean
# Check the `Dockerfile`:
make lint
# Build a new local image:
make build
# Enter an interactive shell inside the created image:
make run
# Login to the docker hub:
make login
# Push the local image to the docker hub:
make push
# Pull the image from the docker hub:
make pull
# Add version tags to the published image:
make tag

License

Copyright (c) 2020-2022 Ferdinand Prantl

Licensed under the MIT license.