- ruby ruby-dev ruby-bundler ruby-irb ruby-rdoc dnsmasq \
- procps git g++ make libxslt-dev libxml2-dev zlib-dev libffi-dev && \
+ ruby ruby-bundler ruby-irb ruby-rdoc dnsmasq \
+ procps libxslt libxml2 zlib libffi && \
+ apk --no-cache add --virtual .build-deps --update \
+ ruby-dev g++ make libxslt-dev libxml2-dev zlib-dev libffi-dev && \