worker_processes 1;

events { worker_connections 1024; }

http {
    server {
        listen 80; #Port that the nginx server listens on

        #Location / redicts every url not specified in another location to the frontend container
        location / {
            proxy_pass         http://frontend_server:80/;
            proxy_redirect     off;

            #Set the headers needed by the frontend for smooth proxying
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
        }

        #Location /api redicts every api related url to the backend container.
        location /api {
       	    proxy_pass         http://backend_server:4010;
            proxy_redirect     off;

            #Set the headers needed by the backend for smooth proxying
            proxy_set_header   Upgrade $http_upgrade;
            proxy_set_header   Connection keep-alive;
            proxy_set_header   Host $host;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Proto $scheme;
            proxy_set_header   X-Forwarded-Host $server_name;
            proxy_set_header   X-Forwarded-Prefix /api;
        }

        #Location /documents redicts every documents generation related url to the document-server container.
        location /documents {
            rewrite /documents/(.*) /$1  break;
       	    proxy_pass         http://document_server:4010;
            proxy_redirect     off;

            #Set the headers needed by the backend for smooth proxying
            proxy_set_header   Upgrade $http_upgrade;
            proxy_set_header   Connection keep-alive;
            proxy_set_header   Host $host;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Proto $scheme;
            proxy_set_header   X-Forwarded-Host $server_name;
        }

        #Location /mailer redicts every mailing related url to the mailer container.
        location /mailer {
            rewrite /mailer/(.*) /$1  break;
       	    proxy_pass         http://mailer:4010;
            proxy_redirect     off;

            #Set the headers needed by the backend for smooth proxying
            proxy_set_header   Upgrade $http_upgrade;
            proxy_set_header   Connection keep-alive;
            proxy_set_header   Host $host;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Proto $scheme;
            proxy_set_header   X-Forwarded-Host $server_name;
        }
    }
}