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# "keys_zone=name:size” --> size: 10MB/0.125kB ~ 80000 cache keys
# levels --> two‑level directory hierarchy, max 3
# inactive --> removed items if not accessed after 7 days
# use_temp_path=off --> write files directly to the cache dir and avoid unnecessary copying of data to a temp storage first
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=STATIC:10m inactive=7d use_temp_path=off;
# skip header Set-Cookie
proxy_ignore_headers Set-Cookie;
# redirect to upstream with header X-No-Cache
proxy_no_cache $http_x_no_cache;

upstream nextjs_upstream {
  server next_app:3000;
}

server {
  # default port 80
  listen 80 default_server;
  # As this's default server and will handle all requests that aren't matched by other server blocks --> we don’t need a name
  server_name _;
  # The NGINX version doesn't appear in the response headers
  server_tokens off;
  # set root
  root /var/www/html/frontend;
  # set log
  error_log  /var/log/nginx/error.log;
  access_log /var/log/nginx/access.log;

  # compressing files before sending, gzip works best on text-heavy file formats such as: css, js, svg, xml, etc.
  gzip on;
  gzip_proxied any;
  gzip_comp_level 4;
  gzip_types text/css application/javascript image/svg+xml;

  proxy_http_version 1.1;
  proxy_set_header Upgrade $http_upgrade;
  proxy_set_header Connection 'upgrade';
  proxy_set_header Host $host;
  proxy_cache_bypass $http_upgrade;

  location /_next/static {
    # use cache zone STATIC to cache any file whose path contains the /_next/static dir
    proxy_cache STATIC;
    # then pass all requests to nextjs_upstream
    proxy_pass http://nextjs_upstream;

    # For testing cache - remove before deploying to production
    add_header X-Cache-Status $upstream_cache_status;
  }

  location /static {
    proxy_cache STATIC;
    proxy_ignore_headers Cache-Control;
    proxy_cache_valid 60m;
    proxy_pass http://nextjs_upstream;

    # For testing cache - remove before deploying to production
    add_header X-Cache-Status $upstream_cache_status;
  }

  location /_next/image {
    # proxy pass to the above upstream
    proxy_pass http://nextjs_upstream;
  }

  location / {
    # proxy pass to the above upstream
    proxy_pass http://nextjs_upstream;
  }

  # laravel backend
  location ~ /api {
    try_files $uri $uri/ /index.php?$query_string;
  }

  location ~ \.php$ {
    root /var/www/html/api/public;
    try_files $uri =404;
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass laravel:9000;
    fastcgi_index index.php;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_hide_header X-Powered-By;
  }

  location ~ /\.ht {
    deny all;
  }
}