feat: Only install phantomjs in root image

image/Dockerfile

@@ -1,15 +1,9 @@
 FROM debian:stretch-slim
 LABEL maintainer="zodern"
 RUN apt-get update && \
-  apt-get install -y curl python make g++ bzip2 libfontconfig1 libfreetype6  ca-certificates --no-install-recommends && \
+  apt-get install -y curl python make g++ bzip2 ca-certificates --no-install-recommends && \
   rm -rf /var/lib/apt/lists/*
-RUN export VERSION="2.1.1" && \
-  curl -L -o ./phantomjs.tar.bz2 https://github.com/Medium/phantomjs/releases/download/v$VERSION/phantomjs-$VERSION-linux-x86_64.tar.bz2 && \
-  mkdir phantomjs && \
-  tar xvjf phantomjs.tar.bz2 -C ./phantomjs --strip-components=1  && \
-  mv phantomjs /usr/local/share && \
-  ln -sf /usr/local/share/phantomjs/bin/phantomjs /usr/local/bin && \
-  rm -rf ./phantomjs ./phantomjs.tar.bz2
+
 RUN useradd --create-home --shell /bin/bash --uid 1000 --user-group app
 
 RUN mkdir /built_app

root-image/Dockerfile

@@ -1,6 +1,16 @@
 FROM zodern/meteor
 LABEL maintainer="zodern"
 USER root
+RUN apt-get update && \
+  apt-get install -y libfontconfig1 libfreetype6 && \
+  rm -rf /var/lib/apt/lists/*
+RUN export VERSION="2.1.1" && \
+  curl -L -o ./phantomjs.tar.bz2 https://github.com/Medium/phantomjs/releases/download/v$VERSION/phantomjs-$VERSION-linux-x86_64.tar.bz2 && \
+  mkdir phantomjs && \
+  tar xvjf phantomjs.tar.bz2 -C ./phantomjs --strip-components=1  && \
+  mv phantomjs /usr/local/share && \
+  ln -sf /usr/local/share/phantomjs/bin/phantomjs /usr/local/bin && \
+  rm -rf ./phantomjs ./phantomjs.tar.bz2
 ONBUILD USER root
 ONBUILD ARG NODE_VERSION='4.8.4'
 ONBUILD RUN bash ./scripts/onbuild-node.sh