FROM ubuntu:18.04

# Install dependencies

RUN apt-get update && \

 apt-get -y install apache2



# Install apache and write hello world message

RUN echo 'Hello World!' > /var/www/html/index.html



# Configure apache

RUN echo '. /etc/apache2/envvars' > /root/run_apache.sh && \

 echo 'mkdir -p /var/run/apache2' >> /root/run_apache.sh && \

 echo 'mkdir -p /var/lock/apache2' >> /root/run_apache.sh && \ 

 echo '/usr/sbin/apache2 -D FOREGROUND' >> /root/run_apache.sh && \ 

 chmod 755 /root/run_apache.sh

EXPOSE 80

CMD /root/run_apache.sh