More of the Internet uses secure connections to serve content, like bootstrap scripts https://bootstrap.pypa.io/get-pip.py or https://get.haskellstack.org/. The out-of-the-box busybox wgte doesn't have HTTPS included, so it requires the install of additional packages. Under Alpine Linux, I had to run: apk upgrade libssl1.0 --update-cache apk add wget ca-certificates which enabled HTTPS support. Could this be added to busybox "base"? Thanks https://github.com/gliderlabs/docker-alpine/issues/218