Dockerfile post sample

Dockerfile

FROM ubuntu

MAINTAINER NaN Labs

# install default aptitude apache2
# try to use the less amount of RUN executions 
#   to reduce the image binary file
RUN apt-get update && apt-get install -y apache2

# environment variable deployKey will be available
#   when running the container
ENV deployKey, 123456

# expose only these two ports
EXPOSE 80 443

# exposes apache2 directories
VOLUME ["/var/log/apache2", "/var/www","/etc/apache2/sites-enabled/"]

# add an init file from the recipe bin dir to the container /tmp dir
COPY bin/init.sh /tmp/init.sh

# dynamic steps

# any future based env command could be run here
CMD /bin/bash

# this is the same as CMD but, but more expresive entrypoint
ENTRYPOINT tail -f /dev/null