It should be:proxy_pass http://my-upstream;
nginx will load-balance all requests over your 4 djano+gunicorn instances (your my-upstream). The load-balancers will point to the nginx servers.
It should be:proxy_pass http://my-upstream;
nginx will load-balance all requests over your 4 djano+gunicorn instances (your my-upstream). The load-balancers will point to the nginx servers.