Add mysql docker container

This includes grabbing Dockerfile from dockerhub as well as loading edx
users into db.  The db VOLUME is not shared at this point.

docker/build/mysql/Dockerfile

+FROM edxops/precise-common:v1
+MAINTAINER rraposa@edx.org
+
+USER root
+
+# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
+RUN groupadd -r mysql && useradd -r -g mysql mysql
+
+RUN mkdir /docker-entrypoint-initdb.d
+
+# FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db:
+# File::Basename
+# File::Copy
+# Sys::Hostname
+# Data::Dumper
+RUN apt-get update && apt-get install -y perl --no-install-recommends && rm -rf /var/lib/apt/lists/*
+
+# gpg: key 5072E1F5: public key "MySQL Release Engineering <mysql-build@oss.oracle.com>" imported
+RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys A4A9406876FCBD3C456770C88C718D3B5072E1F5
+
+ENV MYSQL_MAJOR 5.6
+ENV MYSQL_VERSION 5.6.27
+
+RUN echo "deb http://repo.mysql.com/apt/ubuntu/ precise mysql-${MYSQL_MAJOR}" > /etc/apt/sources.list.d/mysql.list
+
+ENV DEBIAN_FRONTEND noninteractive
+
+# the "/var/lib/mysql" stuff here is because the mysql-server postinst doesn't have an explicit way to disable the mysql_install_db codepath besides having a database already "configured" (ie, stuff in /var/lib/mysql/mysql)
+# also, we set debconf keys to make APT a little quieter
+RUN { \
+		echo mysql-community-server mysql-community-server/data-dir select ''; \
+		echo mysql-community-server mysql-community-server/root-pass password ''; \
+		echo mysql-community-server mysql-community-server/re-root-pass password ''; \
+		echo mysql-community-server mysql-community-server/remove-test-db select false; \
+	} | debconf-set-selections \
+	&& apt-get update && apt-get install -y mysql-server="${MYSQL_VERSION}"* && rm -rf /var/lib/apt/lists/* \
+	&& rm -rf /var/lib/mysql && mkdir -p /var/lib/mysql
+
+# comment out a few problematic configuration values
+# don't reverse lookup hostnames, they are usually another container
+RUN sed -Ei 's/^(bind-address|log)/#&/' /etc/mysql/my.cnf \
+	&& echo 'skip-host-cache\nskip-name-resolve' | awk '{ print } $1 == "[mysqld]" && c == 0 { c = 1; system("cat") }' /etc/mysql/my.cnf > /tmp/my.cnf \
+	&& mv /tmp/my.cnf /etc/mysql/my.cnf
+
+# TODO: Determine how to properly handle VOLUME
+#VOLUME /var/lib/mysql
+
+USER docker
+
+WORKDIR /edx/app/edx_ansible/edx_ansible/docker/plays
+COPY edxlocal.yml edxlocal.yml
+RUN sudo ansible-playbook edxlocal.yml -c local
+
+USER root
+
+COPY docker-entrypoint.sh /entrypoint.sh
+RUN chmod 755 /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]
+
+EXPOSE 3306
+CMD ["mysqld"]

docker/build/mysql/edxlocal.yml

+# Configure a Jenkins worker instance
+# This has all the requirements to run test jobs,
+# but not the Jenkins Java app.
+
+- name: Setup Database Users
+  hosts: all
+  sudo: True
+  gather_facts: True
+  vars_files:
+    - roles/edxapp/defaults/main.yml
+    - roles/ora/defaults/main.yml
+    - roles/xqueue/defaults/main.yml
+    - roles/xserver/defaults/main.yml
+    - roles/forum/defaults/main.yml
+  roles:
+    - edxlocal
+

docker/compose/docker-compose.yml

----
-
 db:
+#  build: ../build/mysql
   image: edxops/mysql:v1
   environment:
     - MYSQL_ROOT_PASSWORD=''