anchor.diff: -FROM sameersbn/ubuntu:14.04.20170711
  -MAINTAINER sameer@damagehead.com
  +FROM ubuntu:trusty-20180712
  +
  +LABEL maintainer="sameer@damagehead.com"
   
   ENV RUBY_VERSION=2.3 \
       REDMINE_VERSION=3.4.6 \
  
positive.code:  && rm -rf /var/lib/apt/lists/*
  
  COPY assets/build/ ${REDMINE_BUILD_DIR}/
  RUN bash ${REDMINE_BUILD_DIR}/install.sh
  
  COPY assets/runtime/ ${REDMINE_RUNTIME_DIR}/
  COPY assets/tools/ /usr/bin/
  COPY entrypoint.sh /sbin/entrypoint.sh
  RUN chmod 755 /sbin/entrypoint.sh
  
  EXPOSE 80/tcp 443/tcp
  
  VOLUME ["${REDMINE_DATA_DIR}", "${REDMINE_LOG_DIR}"]
  WORKDIR ${REDMINE_INSTALL_DIR}
  ENTRYPOINT ["/sbin/entrypoint.sh"]
  CMD ["app:start"]
  
negative.code:     REDMINE_BUILD_DIR="${REDMINE_CACHE_DIR}/build" \
      REDMINE_RUNTIME_DIR="${REDMINE_CACHE_DIR}/runtime"
  
  RUN apt-get update \
   && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
        wget ca-certificates \
   && apt-key adv --keyserver keyserver.ubuntu.com --recv E1DD270288B4E6030699E45FA1715D88E1DF1F24 \
   && echo "deb http://ppa.launchpad.net/git-core/ppa/ubuntu trusty main" >> /etc/apt/sources.list \
   && apt-key adv --keyserver keyserver.ubuntu.com --recv 80F70E11F0F0D5F10CB20E62F5DA5F09C3173AA6 \
   && echo "deb http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu trusty main" >> /etc/apt/sources.list \
  