tmp.ini

[master]
master = true
processes = 0
uid = www-data
gid = staff
chown-socket = www-data:staff
chmod-socket = 660
zerg-pool = /var/run/webapp:/tmp/webapp.sock
logfile-chown = www-data:staff
logfile-chmod = 640
# tried, to no avail
# as-root = chown:/var/run/webapp www-data staff
# as-root = chmod:/var/run/webapp 0660
# as-root = chown:/tmp/webapp.sock www-data staff
# as-root = chmod:/tmp/webapp.sock 0660