worker_processes  auto;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
    }

    sendfile        on;
    tcp_nopush      on;
    tcp_nodelay     on;
 
    upstream uwsgi {
        server 127.0.0.1:8050;
    }

    upstream daphne {
        server 127.0.0.1:8051;
    }

    server {
        listen 80 default_server;
        listen [::]:80 default_server;
        return 301 https://$host$request_uri;
    }

    server {
        listen 443 default_server ssl;

        # If you have a domain name, this is where to add it
        server_name _;
        keepalive_timeout 65;

        ssl_certificate /etc/tower/tower.cert;
        ssl_certificate_key /etc/tower/tower.key;
        ssl_session_cache shared:SSL:50m;
        ssl_session_timeout 1d;
        ssl_session_tickets off;

        # intermediate configuration
        ssl_protocols TLSv1.2;
        ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
        ssl_prefer_server_ciphers on;

        # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
        add_header Strict-Transport-Security max-age=15768000;

        location /favicon.ico { alias /var/lib/awx/public/static/favicon.ico; }
        location /static { alias /var/lib/awx/public/static; }

        location /websocket {
            # Pass request to the upstream alias
            proxy_pass http://daphne;
            # Require http version 1.1 to allow for upgrade requests
            proxy_http_version 1.1;
            # We want proxy_buffering off for proxying to websockets.
            proxy_buffering off;
            # http://en.wikipedia.org/wiki/X-Forwarded-For
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            # enable this if you use HTTPS:
            proxy_set_header X-Forwarded-Proto https;
            # pass the Host: header from the client for the sake of redirects
            proxy_set_header Host $http_host;
            # We've set the Host header, so we don't need Nginx to muddle
            # about with redirects
            proxy_redirect off;
            # Depending on the request value, set the Upgrade and
            # connection headers
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
        }      

        location / {
            # Redirect if there is no forward-slash
            rewrite ^(.*[^/])$ $1/ permanent;
            uwsgi_read_timeout 120s;
            uwsgi_pass uwsgi;
            include /etc/nginx/uwsgi_params;
        }
    }
}