Haproxy 重写url

需求 访问http://www.xxx.com/web1 到后端 是http://www.xxx.com/去掉前缀

frontend webVIP_80
        mode http
        bind    :80
        #acl routing to backend
        acl web1_path path_beg /web1
        acl web2_path path_beg /web2

        #which backend
        use_backend webfarm1 if web1_path
        use_backend webfarm2 if web2_path
        default_backend webfarm1

backend webfarm1
        mode http
        reqrep ^([^\ ]*)\ /web1/(.*)     \1\ /\2
        balance roundrobin
        #option httpchk HEAD /index HTTP/1.1\r\nHost:\ example.com
        server webtest1 10.0.0.10:80 weight 5 check slowstart 5000ms
        server webtest2 10.0.0.20:80 weight 5 check slowstart 5000ms
backend webfarm2
        mode http
        reqrep ^([^\ ]*)\ /web2/(.*)     \1\ /\2
        balance roundrobin
        #option httpchk HEAD /index HTTP/1.1\r\nHost:\ example.com
        server webtest1-farm2 10.0.0.110:80 weight 5 check slowstart 5000ms
        server webtest2-farm2 10.0.0.120:80 weight 5 check slowstart 5000ms

改写url

场景：访问http://xx/web1  ,改写到后端/web2

frontend webVIP_80
        mode http
        bind    :80
        #acl routing to backend
        acl web1_path path_beg /web1

        #which backend
        use_backend webfarm1 if web1_path
        default_backend webfarm1

backend webfarm1
        mode http
        reqirep ^([^\ :]*)\ /web1/(.*)  \1\ /web2/\2
        balance roundrobin
        server webtest1 10.0.0.10:80 weight 5 check slowstart 5000ms
        server webtest2 10.0.0.20:80 weight 5 check slowstart 5000ms