根據(jù)代碼猜功能-。-

from jinja2 import Template
#f = open("squid.conf","r")

flag = ""
hostnames = []
backends = []
dict = {}
with open('squid.conf') as file:
    for line in file:
        print line
        if "cache_peer_domain" in line:
            array = line.split(" ")
            if array[1] != flag:
                print array[3]
                hostnames.append({"name":array[3].split(".")[1],"host":array[1]})
                flag = array[1]
                dict[array[1]] = array[3].split(".")[1]
            for a in array:
                print a.strip("\n\r")

                if a != "" and a != "cache_peer_domain":
                    backends.append({"backend":dict[array[1]],"domain":a})

print hostnames
template = Template('''
{% for hostname in hostnames %}
backend {{ hostname.name }} {
    .host = "{{ hostname.host }}";
    .port = "80";
}
{% endfor %}

sub vcl_recv {
{% for backend in backends %}
    if (req.http.host ~ "{{ backend.domain }}") {
        set req.backend_hint = {{ backend.backend }};
    }
{% endfor %}
}


''')
result = template.render(hostnames=hostnames,backends=backends)
f = open("varnish","w+")
f.write(result)