haproxy 基于cookie的会话保持

cookie value：为当前server指定cookie值，实现基于cookie的会话黏性

cookie 语法

cookie <name> [ rewrite | insert | prefix ] [ indirect ] [ nocache ]
              [ postonly ] [ preserve ] [ httponly ] [ secure ]
              [ domain <domain> ]* [ maxidle <idle> ] [ maxlife <life> ]
              [ dynamic ] [ attr <value> ]*

name：cookie 的key名称，用于实现持久连接
insert：如果没有就插入新的cookie
indirect：不会向客户端发送服务器已经处理过请求的cookie信息
nocache：当client和hapoxy之间有缓存时，不缓存cookie

cookie 的作用域

cookie 配置示例

listen web_host
	bind 192.168.1.101:80
	mode http
	log global
	balance roundrobin
	cookie SERVER-COOKIE insert indirect nocache
	server web1 192.168.1.103:80 cookie web1 check inter 3000 fall 3 rise 5
	server web2 192.168.1.104:80 cookie web2 check inter 3000 fall 3 rise 5

验证cookie信息

通过命令验证

root@z5:~# curl 192.168.1.101  --cookie "SERVER-COOKIE=web1"
103 index
root@z5:~# curl 192.168.1.101  --cookie "SERVER-COOKIE=web2"
104 index

–cookie “SERVER-COOKIE=web2”
104 index