worker_processes  1;

events {
    worker_connections  1024;
}

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

    sendfile        on;
    
    keepalive_timeout  65;

    gzip  on;

    proxy_cache_path /tmp/osm/cache keys_zone=osm:512m inactive=7d;
    proxy_temp_path /tmp/osm/temp;
    upstream osm {
        server b.basemaps.cartocdn.com;
        #server b.tile.openstreetmap.org;
        keepalive 8;
    }


    server {
        listen 80;
        server_name localhost;

        location / {
            root /usr/share/nginx/html;
            try_files $uri /index.html;
        }

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

        location /api/ {
            proxy_pass http://backend:8080/;
            proxy_http_version 1.1;
            proxy_set_header X-Forwarded-Proto https;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
        }

	location /map/tiles/ {
	   proxy_set_header Host b.basemaps.cartocdn.com;
           proxy_http_version 1.1;
           proxy_set_header Connection "";
           proxy_pass http://osm/dark_all/;
           proxy_cache osm;
           proxy_cache_valid  7d;
           expires 7d;
	}
    }
}