allow docker to run with a local cache
update before install varnish and nginx, sync local logs to /var/log in container
adding index file to site, make sure varnishlog starts appropriately, update to version 4 for varnish, make sure new nginx version runs
first stab at vcl to check if theres been a change in the cache
functioning meta-request then delivery from cache if applicable
convenient one liner to rebuild during dev