I am building a new Docker image with:
FROM alpine:3.4
RUN apk upgrade --update
However, its failing with the error:
[INFO] /bin/sh: apk: not found
This seems to work fine on my local machine (Mac OSX) but when I try building it on a Linux CentOS 7 machine it fails.
In the end we upgraded our projects to use this Docker Maven plugin: https://github.com/fabric8io/fabric8-maven-plugin. No issue thus far.
I ran into something like this. It completely blew my mind, and I was questioning my sanity for a bit until I realized that /sbin wasn't in my container's path (completely my fault: this was a change that I made when I was trying to clean up my CI pipeline).
If you type command -v apk in an interactive session in your container's base image and compare that directory with the container's $PATH that should get you squared away. If command -v apk doesn't work for you, you could try to find it via find / -name apk -type f -exec dirname "{}" ";" and ensure that path is part of $PATH
来源：https://stackoverflow.com/questions/40264279/docker-alpine-bin-sh-apk-not-found