message: Install fpm manually instead of relying on another base image
diff: @@ -2,6 +2,12 @@ FROM ubuntu:16.04
  ARG PACKAGECLOUD_URL
  -RUN apt-get update -y && apt-get install -y curl
  +RUN apt-get update -y && apt-get install -y \
  + curl \
  + gcc \
  + make \
  + ruby \
  + ruby-dev \
  + && gem install fpm
  RUN curl -s $PACKAGECLOUD_URL/script.deb.sh | bash
  