I have a
Dockerfile to build a Docker image that is based on Alpine Linux. Now I need to install a package as part of this
Currently I have:
RUN apk update && \ apk upgrade && \ apk add git
Apparently this is a bad idea, as the result is non-deterministic. Instead, it depends on the point in time at which I build the image, which version of
git is getting installed.
What is the correct way of doing this?
I guess that I have to tell
add which versions to use, but how do I do this?
I have seen that
apk supports pinning of repositories, but that is not what I want (at least I think so), because I do not want to pin a repository, but a package.
In other words: If
git could be installed via
npm, I'd be able to run:
npm install email@example.com
(or whatever version I want to have). What is the equivalent to this for Alpine Linux?