Merge pull request #72 from liangminhua/master

Add DockerfIle #51

Author: iliakan

Dockerfile

@@ -0,0 +1,14 @@
+FROM node:10
+ARG LANG=en
+ENV LANG=${LANG}
+ENV HOST=0.0.0.0
+USER root
+COPY . /js/server
+RUN cd js && \
+    npm_config_user=root npm install -g bunyan gulp@4 && \
+    git clone https://github.com/javascript-tutorial/engine server/modules/engine --depth=1  && \
+    git clone https://github.com/javascript-tutorial/$LANG.javascript.info --depth=1  && \
+    cd server && npm install
+WORKDIR /js/server
+EXPOSE 3000
+CMD ./edit $LANG $LANG