alpine

Alpine Linux is a Linux distribution built around musl libc and BusyBox.

Versions	Size	Layer
`3.16.2`, `3.16`, `3`, `latest`
`3.16.2-openrc`, `3.16-openrc`, `3-openrc`
`3.15.6` ,`3.15`
`3.15.6-openrc`, `3.15-openrc`
`3.14.8`, `3.14`
`3.14.8-openrc`, `3.14-openrc`
`3.13.12`, `3.13`
`3.13.12-openrc`, `3.13-openrc`

Dockerfile to build an alpine base image with a couple of extra packages and enable some repositories.

The image enable the following repositories:

@edge (dl-cdn.alpinelinux.org/alpine/edge/main)
@edgecommunity (dl-cdn.alpinelinux.org/alpine/edge/community)
@testing (dl-cdn.alpinelinux.org/alpine/edge/testing)

The image installs the following extra packages:

ca-certificates Common CA certificates PEM files.
su-exec Switch user and group id, setgroups and exec.