I am a docker newbie so please forgive me if these are stupid questions.

I am unable to bind volumes from host to container for graphite, elasticdata or supervisor logs. The crux seems to be permissions. The carbon and graphite run as www-data but if I start docker like your example. The host folder will only be writable by root (and the container docker user) not by www-data.

docker run -v /data/graphite:/var/lib/graphite/storage/whisper
-d nickstenning/graphite

How do you handle permissions for the container process users to write to the host volumes?