Upstream configuration for nginx

upstream.conf

#Upstream for Graphite
upstream graphite_app {
        server 127.0.0.1:8000 fail_timeout=0;
}

#Upstream for my app
upstream unicorn-todolist {
  server unix:/var/www/rails_apps/todolist/current/tmp/sockets/unicorn.socket fail_timeout=0;
}

#Upstream for Gitlab
upstream gitlab_app {
  server unix:/home/gitlab/gitlab/tmp/sockets/gitlab.socket fail_timeout=0;
}