Dockerfile

#name of container: docker-nagios
#versison of container: 0.5.2
FROM quantumobject/docker-baseimage
MAINTAINER Angel Rodriguez  "angel@quantumobject.com"

# Allow postfix to install without interaction.
RUN echo "postfix postfix/mailname string example.com" | debconf-set-selections
RUN echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections

#add repository and update the container
#Installation of nesesary package/software for this containers...
RUN apt-get update && apt-get install -y -q  wget \
                    build-essential \
                    apache2 \
                    apache2-utils \
                    php5-gd \
                    libgd2-xpm-dev \
                    libapache2-mod-php5 \
                    postfix \
                    libssl0.9.8 \
                    libssl-dev \
                    && rm -R /var/www/html
                    && apt-get clean \
                    && rm -rf /tmp/* /var/tmp/*  \
                    && rm -rf /var/lib/apt/lists/*

##startup scripts  
#Pre-config scrip that maybe need to be run one time only when the container run the first time .. using a flag to don't 
#run it again ... use for conf for service ... when run the first time ...
RUN mkdir -p /etc/my_init.d
COPY startup.sh /etc/my_init.d/startup.sh
RUN chmod +x /etc/my_init.d/startup.sh


##Adding Deamons to containers

# to add apache2 deamon to runit
RUN mkdir /etc/service/apache2
COPY apache2.sh /etc/service/apache2/run
RUN chmod +x /etc/service/apache2/run

# to add nagios deamon to runit
RUN mkdir /etc/service/nagios
COPY nagios.sh /etc/service/nagios/run
RUN chmod +x /etc/service/nagios/run

# to add postfix deamon to runit
RUN mkdir /etc/service/postfix
COPY postfix.sh /etc/service/postfix/run
RUN chmod +x /etc/service/postfix/run
COPY postfixstop.sh /etc/service/postfix/finish
RUN chmod +x /etc/service/postfix/finish

#pre-config scritp for different service that need to be run when container image is create 
#maybe include additional software that need to be installed ... with some service running ... like example mysqld
COPY pre-conf.sh /sbin/pre-conf

RUN chmod +x /sbin/pre-conf 
RUN /bin/bash -c /sbin/pre-conf \
    && rm /sbin/pre-conf

##scritp that can be running from the outside using docker-bash tool ...
## for example to create backup for database with convitation of VOLUME   dockers-bash container_ID backup_mysql
COPY backup.sh /sbin/backup
RUN chmod +x /sbin/backup
VOLUME /var/backups


#add files and script that need to be use for this container
#include conf file relate to service/daemon 
#additionsl tools to be use internally 

# to allow access from outside of the container  to the container service
# at that ports need to allow access from firewall if need to access it outside of the server. 
EXPOSE 80 25

#creatian of volume 
#VOLUME 

# Use baseimage-docker's init system.
CMD ["/sbin/my_init"]