nginx 前端调度 对后端的app的生存状态的检测

# cat hosts.conf
#app调试
upstream gl-appsrv_pools {
server 10.1x0.2xx.1x0:8040;
server 10.x9x.20.208:8040;
check interval=3000 rise=2 fall=3 timeout=2000 type=http;
check_http_send "GET /chk/chk.html HTTP/1.0\r\nHost jxxk.xxxxx.com\r\n\r\n";
}
#
server {
listen 80 default backlog=2048;
listen 443 ssl;
server_name jxxk.xxxxx.com;
#ssl on;
ssl_certificate /etc/cert/xxxxx3140913.pem;
ssl_certificate_key /etc/cert/xxxx3140913.key;
#ssl_session_cache shared:SSL:1m;
ssl_ciphers HIGH:!aNULL:!MD5;
ssl_protocols SSLv2 SSLv3 TLSv1;
ssl_protocols TLSv1.2 TLSv1.1;
#ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_prefer_server_ciphers on;
location / {
proxy_pass http://gl-appsrv_pools; proxy_set_header Host			$host;
proxy_set_header X-Real-IP		$remote_addr;
proxy_set_header X-Forwarded-For	$proxy_add_x_forwarded_for;
}
location /nstatus {
check_status;
access_log off;
allow xx.10x.1x.2x;#可以允许多个ip多我allow ip1; allow ip2;
deny all;
}
}
#其中/chk/chk.html 是在/data/apps/app-xxxx-test/webapps/下面的