Update Dockerfile

statsd/Dockerfile

@@ -5,7 +5,7 @@ ENV DEBIAN_FRONTEND noninteractive
 RUN echo Acquire::http::Proxy "http://aptcache.infra.flowdat.com/"; > /etc/apt/apt.conf.d/00aptproxy; \
     printf "deb http://archive.debian.org/debian/ jessie main\ndeb-src http://archive.debian.org/debian/ jessie main\ndeb http://security.debian.org jessie/updates main\ndeb-src http://security.debian.org jessie/updates main" > /etc/apt/sources.list; \
     apt-get update; \
-    apt-get install -yq vim git curl wget; \
+    apt-get install -yq vim git curl wget build-essential; \
     curl -sL https://deb.nodesource.com/setup_10.x | bash; \
     apt-get update; \
     apt-get install -yq nodejs; \