如何配置HAProxy以將GET和POST HTTP請求發送到兩個不同的應用程序服務器

Question

我正在使用RESTful體系結構。我有兩個應用程序服務器運行。一個應該只服務於GET請求，而其他應該只服務於POST請求。我想配置HAProxy根據上述條件對請求進行負載均衡。請幫我

Answer 1

這裏的一個局部HAProxy的配置，可以爲你做這個：

frontend webserver 
    bind :80 
    mode http 
    acl is_post method POST 
    use_backend post_app if is_post 
    default_backend get_app 

backend post_app 
    mode http 
    option forwardfor 
    balance source 
    option httpclose 
    option httpchk HEAD/HTTP/1.0 
    server post_app1 172.16.0.11:80 weight 1 check inter 1000 rise 5 fall 1 
    server post_app2 172.16.0.12:80 weight 1 check inter 1000 rise 5 fall 1 
    server post_app3 172.16.0.13:80 weight 1 check inter 1000 rise 5 fall 1 backup 

backend get_app 
    mode http 
    option forwardfor 
    balance source 
    option httpclose 
    option httpchk HEAD/HTTP/1.0 
    server get_app1 172.16.0.21:80 weight 1 check inter 1000 rise 5 fall 1 
    server get_app2 172.16.0.22:80 weight 1 check inter 1000 rise 5 fall 1 
    server get_app3 172.16.0.23:80 weight 1 check inter 1000 rise 5 fall 1 backup