Merge pull request #3 from 3YOURMIND/refactor-dockerfile

fix package versions

Dockerfile

@@ -3,12 +3,14 @@ FROM node:8.11.3-slim
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
-        git \
-        python \
-        make \
-        gcc \
-        g++ \
-        libc6-dev
+	    git=1:2.1.4-2.1+deb8u6 \
+	    python=2.7.9-1 \
+	    make=4.0-8.1 \
+	    gcc=4:4.9.2-2 \ 
+	    g++=4:4.9.2-2 \
+	    libc6-dev=2.19-18+deb8u10 && \
+	  apt-get clean && \
+	  rm -rf /var/lib/apt/lists/*
 
 RUN git clone https://github.com/Financial-Times/polyfill-service.git /polyfill
 
@@ -21,5 +23,5 @@ ENV NODE_ENV dev
 
 EXPOSE ${PORT}
 
-CMD ["node" ,"--optimize_for_size" ,"--max_old_space_size=460" ,"--gc_interval=100" ,"packages/polyfill-service/bin/polyfill-service"]
+CMD ["node", "--optimize_for_size", "--max_old_space_size=460", "--gc_interval=100", "packages/polyfill-service/bin/polyfill-service"]