Busybox
based on Buildroot 2014.11
container and rootfs builder for minimal Docker base images
equipped with curl-7.39.0
including SSL/TLS support.
For Buildroot 2015.02
have a look at the 2015.02 branch.
The rootfs build can be found in the tarmaker
directory. It is heavily
inspired by radial/core-busyboxplus.