Added Containers examples

Author: devdattakulkarni

Containers/Docker-examples/Dockerfile.centos-apache

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+FROM centos:7
+MAINTAINER "Scott Collier" <scollier@redhat.com>
+
+# https://github.com/projectatomic/docker-image-examples/blob/master/rhel-httpd/Dockerfile
+
+RUN yum -y update; yum clean all
+RUN yum -y install httpd; yum clean all
+RUN echo "Apache" >> /var/www/html/index.html
+
+EXPOSE 80
+
+# Simple startup script to avoid some issues observed with container restart 
+ADD run-apache.sh /run-apache.sh
+RUN chmod -v +x /run-apache.sh
+
+CMD ["/run-apache.sh"]

Containers/Docker-examples/README.txt

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+1) Apache on CentOS
+
+docker build -t testcentos -f Dockerfile.centos-apache .
+
+docker run -d -p 8085:80 testcentos
+
+docker ps
+
+curl localhost:8085
+
+docker logs <container-id>
+
+
+
+

Containers/Docker-examples/run-apache.sh

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+#!/bin/bash
+
+# Make sure we're not confused by old, incompletely-shutdown httpd
+# context after restarting the container.  httpd won't start correctly
+# if it thinks it is already running.
+rm -rf /run/httpd/*
+
+exec /usr/sbin/apachectl -D FOREGROUND