docker-postgresql: Wrong owner of mounted data directory

Postgresql expects to be started by the user that owns the data directory. But that doesn’t work when using a mounted volume.

docker run -d --name postgresql --publish 5432:5432 -v /Users/me/db:/var/lib/postgresql sameersbn/postgresql:9.4

Results in:

Starting PostgreSQL server...
LOG:  skipping missing configuration file "/var/lib/postgresql/9.4/main/postgresql.auto.conf"
2015-03-10 16:05:23 UTC [13-2] FATAL:  data directory "/var/lib/postgresql/9.4/main" has wrong ownership
2015-03-10 16:05:23 UTC [13-3] HINT:  The server must be started by the user that owns the data directory.

Somehow the ‘9.4’ directory is created, but not ‘main’ directory in there, throwing above exception.

I’m on OSX using boot2docker.