nginx.j2

# HTTP 1.1 support
proxy_http_version 1.1;
proxy_buffering off;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;


{%- for host, containers in context['backend'].items() %}
upstream {{ host }} {
{# add load balance here. #}
    {%- for conn_info in containers  %}
    # {{ host }}
    server {{ conn_info }};
    {%- endfor %}
}
server {
    server_name {{ host }};
    listen 80;

    # Proxying the connections connections
    location / {
        proxy_pass         http://{{ host }};
    }
}
{%- endfor  %}