FROM alpine:latest

RUN apk update \
  && apk add py-pip asciidoc \
  && pip install Pygments \
  && apk del py-pip \
  && rm -rf /tmp/* /var/cache/apk/* \
  && rm -rf /tmp/* /var/cache/apk/* ~/.cache/pip \
  && sed -i 's/^\(source-highlighter=\).*/\1pygments/' /etc/asciidoc/asciidoc.conf