
Bifrost uses the www-data user for nginx on debian/ubuntu, and nginx on other platforms. Kolla-ansible currently uses the nginx user for all platforms when creating a log directory. This change uses the www-data user on debian/ubuntu when setting ownership of the bifrost nginx log directory. Change-Id: I142a158b6f2e8f8a46b684267f6fbb2a6e22a259 Closes-Bug: #1753750