first import

Dockerfile

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+FROM "ubuntu:18.04"
+MAINTAINER "Julien Cabillot <dockerimages@cabillot.eu>"
+
+RUN apt-get -qq update && \
+    apt-get -qq --yes install ruby ruby-dev libxml2-dev && \
+    gem install foodcritic && \
+    # TODO: voir si on peut faire cela
+    #apt-get -qq --yes remove --purge libxml2-dev ruby-dev && \
+    apt-get -qq --yes autoremove --purge && \
+    apt-get -qq --yes clean all && \
+    rm -rf "/usr/share/doc/*" \
+           "/var/cache/*" \
+           "/var/lib/apt/lists/*" \
+           "/usr/src/*" \
+           "/var/cache/*" \
+           "/var/log/"{apt/*,dpkg.log} \
+           "/var/www/html" \
+           "/tmp/*"
+
+WORKDIR /data
+
+ENTRYPOINT [ "/usr/local/bin/foodcritic" ]

README.md

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+I don't use ruby:alpine because foodcritic needs libiconv-dev, only available on edge/testing.