Merge pull request #2 from pelgrim/dockerfile-fix

fixed an Ubuntu image version and added python3 to the packages list

Author: robinsmidsrod

Dockerfile

@@ -1,10 +1,10 @@
-FROM ubuntu
+FROM ubuntu:xenial
 
 MAINTAINER Robin Smidsrød <[email protected]>
 
 RUN apt-get -q -y update \
  && apt-get -q -y -o "DPkg::Options::=--force-confold" -o "DPkg::Options::=--force-confdef" dist-upgrade \
- && apt-get -q -y -o "DPkg::Options::=--force-confold" -o "DPkg::Options::=--force-confdef" install isc-dhcp-server man \
+ && apt-get -q -y -o "DPkg::Options::=--force-confold" -o "DPkg::Options::=--force-confdef" install isc-dhcp-server man python3\
  && apt-get -q -y autoremove \
  && apt-get -q -y clean \
  && rm -rf /var/lib/apt/lists/*