六月学习之Haproxy ACL实践(基于路径调度)

2、ACL场景实践

2.3、ACL案例-基于路径调度

#根据用户请求的URL。调度到不同的后端集群
用户通过/static调度到172.16.1.7:80
用户请求/user调度到172.16.1.8:80

2.3.1、配置后端节点

#web1： /static站点定义
cat /etc/nginx/conf.d/www.qingchen.com.conf
server {
    listen 80;
    server_name www.qingchen.com;
    root /www
    location / {
        index index.html
    }
}
mkdir /www/static
echo "static-->web1" > /www/static/index.html

#web2： /user站点定义
cat /etc/nginx/conf.d/www.qingchen.com.conf
server {
    listen 8080;
    server_name www.qingchen.com;
    root /www
    location / {
        index index.html
    }
}
mkdir /www/user
echo "user-->web1" > /www/user/index.html

2.3.2、配置Haproxy

frontend web
    bind *:80
    mode http
    
    # acl规则
    acl www_site hdr(host) -i www.qingchen.net
    
    # acl规则-请求/static www_cluster  /user --- blog_cluster
    acl req_static path_beg -i /static
    acl req_user path_beg -i /user
    
    # 调用
    use_backend www_cluster if www_site req_static
    use_backend blog_cluster if  www_site req_user
    default_backend www_cluster

backend www_cluster
    balance roundrobin
    option httpchk HEAD / HTTP/1.1\r\nHost:\ www.qingchen.net
    server 172.16.1.7 172.16.1.7:80 check port 80 inter 3s rise 2 fall 3
    server 172.16.1.8 172.16.1.8:80 check port 80 inter 3s rise 2 fall 3

backend blog_cluster
    balance roundrobin
    option httpchk HEAD / HTTP/1.1\r\nHost:\ www.qingchen.net
    server 172.16.1.7 172.16.1.7:8080 check port 8080 inter 3s rise 2 fall 3
    server 172.16.1.8 172.16.1.8:8080 check port 8080 inter 3s rise 2 fall 3

2.3.3、客户端测试

curl -HHost:www.qingchen.net http://10.0.0.5/static
curl -HHost:www.qingchen.net http://10.0.0.5/user