Simple dockerfiles for Minishift testing

DO280_files/examples/dockerfiles/my-httpd/Dockerfile

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+FROM centos:7
+
+RUN yum -y --setopt=tsflags=nodocs install httpd php && \
+    yum clean all && \
+    rm -rf /run/httpd/* /tmp/httpd* && \
+    echo "Apache in a Docker container" > /var/www/html/index.html
+
+EXPOSE 80
+
+CMD ["/usr/sbin/apachectl", "-D", "FOREGROUND" ]

DO280_files/examples/dockerfiles/my-wordpress-php7/Dockerfile

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+FROM centos:7
+
+RUN yum -y install http://rpms.remirepo.net/enterprise/remi-release-7.rpm && \
+    yum -y install yum-utils && yum-config-manager --enable remi-php72 && \
+    yum -y --setopt=tsflags=nodocs install httpd php php-mysql php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-snmp php-soap curl wget unzip && \
+    yum clean all && \
+    rm -rf /run/httpd/* /tmp/httpd* && \
+    cd /var/www/ && wget https://wordpress.org/latest.zip && unzip latest.zip && rm -rf html && mv wordpress html && chown -R apache html
+
+EXPOSE 80
+
+CMD ["/usr/sbin/apachectl", "-D", "FOREGROUND" ]