nginx一个域名绑定多个项目，根据目录不同运行

问题：多个项目，但用同一个域名，不同路径的url，指向不同的项目

解决：使用nginx进行端口代理。多个项目，运行多个端口

方法：
sudo vim /etc/nginx/conf/site-enable/default.conf

upstream frontends {
    server 127.0.0.1:8001;
}
upstream webm{
    server 127.0.0.1:8012;
}
upstream wenda {
    server 127.0.0.1:8021;
}

server {
    listen 8080;
    server_name mantutu.com;
    return 301 http://www.mantutu.com$request_uri;
}
server {
    listen   8080;
    server_name www.mantutu.com;
    server_tokens off;
    access_log /var/www/mandev/website/logs/access.log;
    error_log  /var/www/mandev/website/logs/error.log;
    client_max_body_size 50m;
    root   /var/www/mandev/website/;
    location /static/Cesium/ {
        gzip_static always;
        proxy_cache zt99;
    }
    location /static/ {
        #root   /var/www/mandev/website/;
        if ($query_string) {
            expires max;
        }
        proxy_cache zt99;
    }
    location /wb/static/ {
        root   /var/www/webdev/website/;
        if ($query_string) {
            expires max;
        }
        proxy_cache zt99;
    }
    location /wd/static/ {
        root   /var/www/wendadev/website/;
        if ($query_string) {
            expires max;
        }
        proxy_cache zt99;
    }
    # for letsencryt ssl
    location /.well-known/ {
        #root   /var/www/mandev/website/;
    }
    location = /favicon.ico {
        rewrite (.*) /static/img/favicon.ico;
    }
    location = /robots.txt {
        rewrite (.*) /static/robots.txt;
    }
    location ~ .php$ {
        root /var/www/payments;
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
    location /wb/ {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        #proxy_redirect   http:// $scheme://;
        proxy_redirect   off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://webm;
        #track_uploads proxied 30s;
    }

    location /wd/ {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        #proxy_redirect   http:// $scheme://;
        proxy_redirect   off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://wenda;
        #track_uploads proxied 30s;
    }

    location / {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        #proxy_redirect   http:// $scheme://;
        proxy_redirect   off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://frontends;
        #track_uploads proxied 30s;
    }
}