# Odoo servers
upstream odoo {
 server 127.0.0.1:8100;
}

upstream odoochat {
 server 127.0.0.1:8102;
}

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

# HTTP -> HTTPS
server {
    listen 80;
    listen [::]:80;
    # server_name www.example.com example.com;
    server_name odoo.domain.com;

    # divert login to ssl site
    location ~ ^/ {
        return 301 https://$server_name$request_uri;
    }

}

server {
    listen 443 ssl http2;
    # server_name example.com;
    server_name odoo.domain.com;

    set $app_site        http://odoo;
    set $app_longpoll    http://odoochat;

    proxy_read_timeout 720s;
    proxy_connect_timeout 720s;
    proxy_send_timeout 720s;

    # Proxy headers
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Forwarded-Server $host;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Real-IP $remote_addr;

    proxy_redirect off;

    # SSL parameters
    ssl_certificate "/opt/ssl/odoo.domain.com.crt";
    ssl_certificate_key "/opt/ssl/odoo.domain.com.key";
    # ssl_trusted_certificate /etc/letsencrypt/live/example.com/chain.pem;
    include snippets/ssl.conf;
    # include snippets/letsencrypt.conf;

    # log files
    access_log /var/log/nginx/odoo.access.log;
    error_log /var/log/nginx/odoo.error.log;

    # configures NGINX to wait no more than 10 seconds between writes
    # from the client for either headers or body
    client_body_timeout 10s;
    client_header_timeout 10s;

    client_max_body_size 25M;

    location ~ ^/website/info {
        return 301 $scheme://$server_name;
    }

    # disable debug mode
    if ($args ~ debug) {
        return 301 $scheme://$server_name/web;
    }

    # Handle longpoll requests
    location /longpolling {
       proxy_pass $app_longpoll;
    }

    #
    # https://www.odoo.com/documentation/16.0/administration/install/deploy.html#https
    #
    # Redirect websocket requests to odoo gevent port
    location /websocket {
      proxy_pass $app_longpoll;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection $connection_upgrade;
      proxy_set_header X-Forwarded-Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Real-IP $remote_addr;
    }

    # Redirect requests to odoo backend server
    location / {
      # Add Headers for odoo proxy mode
      proxy_set_header X-Forwarded-Host $host;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_redirect off;
      proxy_pass $app_site;

      # Enable HSTS
      add_header Strict-Transport-Security "max-age=31536000; includeSubDomains";
      # requires nginx 1.19.8
      #proxy_cookie_flags session_id samesite=lax secure;
    }

    # Cache static files
    location ~* /web/static/ {
        proxy_cache_valid 200 90m;
        proxy_buffering on;
        expires 864000;
        proxy_pass $app_site;
    }

    error_page 404 /errorpages/404.html;

    error_page 500 502 503 504 /errorpages/50xnl.html;

    location /errorpages/ {
        root /usr/share/nginx/html/;
    }

    ## If you use https make sure you disable gzip compression
    ## to be safe against BREACH attack.
    # Gzip
    gzip_types text/css text/less text/plain text/xml application/xml application/json application/javascript;
    gzip off;
}