Add Dockerfile to setup wordpress-heroku in local environment

Dockerfile

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+##########################################################
+#                                                        #
+#  1. Build the image:                                   #
+#     docker build -t wordpress-heroku .                 #
+#                                                        #
+#  2. Run the container:                                 #
+#     docker run -ti --rm -v $(pwd):/var/www/html      \ #
+#       -p 80:80 wordpress-heroku                        #
+#                                                        #
+#  3. Visit localhost:80 in browser                      #
+#                                                        #
+##########################################################
+
+
+FROM debian:latest
+MAINTAINER Berin [email protected]
+
+RUN apt-get update && apt-get -y install apache2 libapache2-mod-php5
+RUN apt-get -y install postgresql php5-pgsql
+RUN a2enmod php5
+
+ENV APACHE_RUN_USER postgres
+ENV APACHE_RUN_GROUP postgres
+ENV APACHE_LOG_DIR /var/log/apache2
+ENV APACHE_PID_FILE /var/run/apache2.pid
+ENV APACHE_RUN_DIR /var/run/apache2
+ENV APACHE_LOCK_DIR /var/lock/apache2
+
+EXPOSE 80
+EXPOSE 5432
+
+RUN echo "listen_addresses='*'" >> /etc/postgresql/9.4/main/postgresql.conf
+RUN echo "ServerName localhost" >> /etc/apache2/apache2.conf
+
+COPY docker/pg_hba.conf /etc/postgresql/9.4/main/pg_hba.conf
+
+# Copying entrypoint script and setting proper permission.
+COPY docker/entrypoint.sh /
+RUN chmod +x /entrypoint.sh
+
+ENTRYPOINT /entrypoint.sh

docker/entrypoint.sh

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+service postgresql start
+psql -U postgres -c "CREATE DATABASE wordpress;"
+psql -U postgres -c  "CREATE USER wordpress WITH PASSWORD 'wordpress'; GRANT ALL PRIVILEGES ON DATABASE wordpress to wordpress;"
+usr/sbin/apache2 -D FOREGROUND
+tail

docker/pg_hba.conf

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+# local
+local	all		postgres					trust
+
+# IPv4 local connections:
+host	all		all		127.0.0.1/32			trust
+host	all		all		10.0.0.0/8				md5
+host	all		all		192.0.0.0/8				md5	
+# IPv6 local connections:
+host	all		all		::1/128				md5