知乎专栏 |
例 43.1. default.vcl
neo@netkiller:/etc/varnish$ cat default.vcl # This is a basic VCL configuration file for varnish. See the vcl(7) # man page for details on VCL syntax and semantics. # # Default backend definition. Set this to point to your content # server. # backend default { .host = "127.0.0.1"; .port = "8080"; } # # Below is a commented-out copy of the default VCL logic. If you # redefine any of these subroutines, the built-in logic will be # appended to your code. # sub vcl_recv { if (req.http.x-forwarded-for) { set req.http.X-Forwarded-For = req.http.X-Forwarded-For ", " client.ip; } else { set req.http.X-Forwarded-For = client.ip; } if (req.request != "GET" && req.request != "HEAD" && req.request != "PUT" && req.request != "POST" && req.request != "TRACE" && req.request != "OPTIONS" && req.request != "DELETE") { /* Non-RFC2616 or CONNECT which is weird. */ return (pipe); } if (req.request != "GET" && req.request != "HEAD") { /* We only deal with GET and HEAD by default */ return (pass); } if (req.http.Authorization || req.http.Cookie) { /* Not cacheable by default */ /* return (pass);*/ return (lookup); } return (lookup); } sub vcl_pipe { # Note that only the first request to the backend will have # X-Forwarded-For set. If you use X-Forwarded-For and want to # have it set for all requests, make sure to have: # set req.http.connection = "close"; # here. It is not set by default as it might break some broken web # applications, like IIS with NTLM authentication. return (pipe); } sub vcl_pass { return (pass); } sub vcl_hash { set req.hash += req.url; if (req.http.host) { set req.hash += req.http.host; } else { set req.hash += server.ip; } return (hash); } sub vcl_hit { if (!obj.cacheable) { return (pass); } return (deliver); } sub vcl_miss { return (fetch); } sub vcl_fetch { if (!beresp.cacheable) { return (pass); } if (beresp.http.Set-Cookie) { # return (pass); return (deliver); } return (deliver); } sub vcl_deliver { return (deliver); } # # sub vcl_error { # set obj.http.Content-Type = "text/html; charset=utf-8"; # synthetic {" # <?xml version="1.0" encoding="utf-8"?> # <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" # "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> # <html> # <head> # <title>"} obj.status " " obj.response {"</title> # </head> # <body> # <h1>Error "} obj.status " " obj.response {"</h1> # <p>"} obj.response {"</p> # <h3>Guru Meditation:</h3> # <p>XID: "} req.xid {"</p> # <hr> # <p>Varnish cache server</p> # </body> # </html> # "}; # return (deliver); # }