Fix redis container

Fix redis container

The puppet-redis module makes use of the exec puppet tag to copy the
/etc/redis.conf.puppet file to /etc/redis.conf. We need to explicitly
enable it otherwise our redis container will pick up the default redis
configuration and not the one that was generated with puppet.

Also creates the /var/run/redis directory on the host since we bind
mount /run, and ensure the container sets the correct ownership on the
directory.

Finally, configure redis to not daemonize otherwise the container ends
up in a restart loop.

Change-Id: Ia1dce2120ca7479eef8bc77dedf9431adbe210cc
Closes-Bug: #1686707