alpine still use musl libc instead of glibc after the glibc apk file installed

[zkhzkhz]

bash-5.0# apk info glibc
glibc-2.32-r0 description:
GNU C Library compatibility layer

glibc-2.32-r0 webpage:
https://github.com/sgerrand/alpine-pkg-glibc

glibc-2.32-r0 installed size:
9404416

now glibc installed

bash-5.0# ldd --version
musl libc (x86_64)
Version 1.1.24
Dynamic Program Loader
Usage: /lib/ld-musl-x86_64.so.1 [options] [--] pathname

[sgerrand]

Hello and thank you for reporting this issue. I strongly suspect that this is caused by /usr/bin/ preceding /usr/glibc-compat/bin/ in your shell's $PATH.

Would you please output the value of $PATH from this instance and share it. If you're using a Docker image for this instance, would you also please share the content of your Dockerfile.

[Philip-Traynor]

HI, I am getting the same issue.
Dockerfile:
USER root

RUN apk --no-cache add ca-certificates wget
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/2.28-r0/glibc-2.28-r0.apk
RUN apk add --force-overwrite glibc-2.28-r0.apk
#RUN apk add gcompat
ENV PATH="/usr/glibc-compat:$PATH"
RUN echo $PATH

PATH:
/usr/glibc-compat:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

ldd --version
musl libc (x86_64)
Version 1.2.3
Dynamic Program Loader
Usage: /lib/ld-musl-x86_64.so.1 [options] [--] pathname

I do not have a bin subdirectory in glibc-compat, so I only set the new value in PATH to be /usr/glibc-compat

[sgerrand]

@PhilTraynor, please install the glibc-bin package to have /usr/glibc-compat/bin/ldd installed. If you don't have /usr/glibc-compat/bin present in your PATH, either add it or execute /usr/glibc-compat/bin/ldd directly.