Nginx response is 403 when trying to get main Fuel page

[Vladimir Kozhukalov]

# cat /etc/fuel/version.yaml
VERSION:
  feature_groups:
    - experimental
  production: "docker"
  release: "6.0-icehouse"
  api: "1.0"
  astute_sha: "c440db0449f3fe6ce6007b514e9133d8f6d0c750"
  fuellib_sha: "a8752c1dee0f00779099b45093b27a524d971ad5"
  ostf_sha: "de177931b53fbe9655502b73d03910b8118e25f1"
  nailgun_sha: "eaa08162e8201cdd6aa1f2676dc6976e18c80289"
  fuelmain_sha: "28aca4fd1175842e74625eecb9e55719288170a9"

That is custom ISO but it is not custom at that point where the reason of this error is.

Nginx worker process just can not get access to static files (html and js).

# ls -l /usr/share/nailgun/
total 0
drwx------ 6 root root 97 Oct 15 08:43 static

# ps auxww | grep nginx
root 383 0.0 0.3 96460 3808 ? S 08:30 0:00 nginx: master process nginx -g daemon off;
nginx 384 0.0 0.2 96864 3004 ? S 08:31 0:00 nginx: worker process

# cat /var/log/docker-logs/nginx/error_nailgun.log
2014/10/15 10:02:02 [error] 384#0: *1 "/usr/share/nailgun/static/index.html" is forbidden (13: Permission denied), client: *.*.*.*, server: localhost, request: "GET / HTTP/1.1", host: "10.20.0.2:8000"