nginx负载均衡配置，宕机自动切换



server {
        listen 80;
        server_name xxx1.com xxx2.com localhost;
        root /opt/dist/;
        charset UTF-8;
        autoindex off;
        access_log /opt/nginx-log/access.log;
        location / {
                try_files $uri @backend;
                autoindex off;
        }

        location @backend {
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_redirect http://localhost http://$host:$server_port;
                proxy_redirect http://xxx1.com http://$host:$server_port;
                proxy_set_header Host $http_host;
                proxy_pass http://localhost:9012;
        }
}