我正在尝试为我的Varnish配置设置多个后端，最近在我的服务器上添加了一些新域名/网站。
以下完整的VCL ......
backend default {
.host = "127.0.0.1";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
backend scrum {
.host = "127.0.0.2";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
backend striker {
.host = "127.0.0.3";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
backend throttle {
.host = "127.0.0.4";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
backend ussports {
.host = "127.0.0.5";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
acl purge {
"localhost";
"127.0.0.1";
"127.0.0.2";
"127.0.0.3";
"127.0.0.4";
"127.0.0.5";
"127.0.0.6";
"127.0.0.7";
"127.0.0.8";
"54.253.117.205";
}
sub vcl_recv {
# Backends
set req.backend = default;
if (req.http.host ~ "(?i)^(www.)?scrum.com$") {
set req.http.host = "www.scrum.com";
set req.backend = scrum;
}
if (req.http.host ~ "(?i)^(www.)?striker.com$") {
set req.http.host = "www.striker.com";
set req.backend = striker;
}
if (req.http.host ~ "(?i)^(www.)?throttle.com$") {
set req.http.host = "www.throttle.com";
set req.backend = throttle;
}
if (req.http.host ~ "(?i)^(www.)?ussports.com$") {
set req.http.host = "www.ussports.com";
set req.backend = ussports;
}
# Don't cache these for now
if (req.http.host ~ "(www\.)?(digital.com|hanger.com|wicket.com)") {
return (pass);
}
# Don't cache admin
if (req.http.host == "sendy.tackle.com" || req.http.host == "admin.tackle.com" || req.http.host == "admin.hanger.com" || req.http.host == "admin.wicket.com" || req.http.host == "admin.striker.com" || req.http.host == "admin.scrum.com" || req.http.host == "admin.throttle.com" || req.http.host == "admin.ussports.com") {
return (pass);
}
if (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed.";
}
ban("req.http.host == " + req.http.host);
}
# Normalize content-encoding
if (req.http.Accept-Encoding) {
if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|lzma|tbz)(\?.*|)$") {
remove req.http.Accept-Encoding;
} elsif (req.http.Accept-Encoding ~ "gzip") {
set req.http.Accept-Encoding = "gzip";
} elsif (req.http.Accept-Encoding ~ "deflate") {
set req.http.Accept-Encoding = "deflate";
} else {
remove req.http.Accept-Encoding;
}
}
if (req.restarts == 0) {
if (req.http.CF-Connecting-IP) {
set req.http.X-Forwarded-For = req.http.CF-Connecting-IP;
} else {
set req.http.X-Forwarded-For = client.ip;
}
}
# Device detection
set req.http.X-Device = "desktop";
if ( req.http.User-Agent ~ "iP(hone|od)" || req.http.User-Agent ~ "Android" ) {
set req.http.X-Device = "smart";
}
# don't cache authenticated sessions
if (req.http.Cookie && req.http.Cookie ~ "(wordpress_|PHPSESSID)") {
return(pass);
}
# Remove cookies and query string for real static files
if (req.url ~ "^/[^?]+\.(gif|jpg|jpeg|swf|css|js|txt|flv|mp3|mp4|pdf|ico|png|gz|zip|lzma|bz2|tgz|tbz)(\?.*|)$") {
unset req.http.cookie;
set req.url = regsub(req.url, "\?.*$", "");
}
# Don't cache backend
if (req.url ~ "wp-(login|admin|comments-post.php|cron.php)" || req.url ~ "preview=true") {
return (pass);
}
# Don't cache backend
if (req.url ~ "(discussion|server-status|pick-your-test-team|pick-your-team|apc.php|xmlrpc.php|_showprocesslist.php)") {
return (pass);
}
if (req.request == "POST")
{
return(pass);
}
return (lookup);
}
sub vcl_hit {
if (req.request == "PURGE") {
purge;
error 200 "Purged.";
}
}
sub vcl_miss {
if (req.request == "PURGE") {
purge;
error 200 "Purged.";
}
}
sub vcl_fetch {
# Don't cache these for now
if (req.http.host ~ "(www\.)?(digital.com|hanger.com|wicket.com)") {
return (hit_for_pass);
}
# Don't cache admin
if (req.http.host == "sendy.tackle.com" || req.http.host == "admin.tackle.com" || req.http.host == "admin.hanger.com" || req.http.host == "admin.wicket.com" || req.http.host == "admin.striker.com" || req.http.host == "admin.scrum.com" || req.http.host == "admin.throttle.com" || req.http.host == "admin.ussports.com") {
return (hit_for_pass);
}
# Don't store backend
if (req.url ~ "wp-(login|admin|comments-post.php|cron.php)" || req.url ~ "preview=true") {
return (hit_for_pass);
}
# If WordPress cookies found then page is not cacheable
if (req.http.Cookie ~"(wp-postpass|wordpress_logged_in|comment_author_)") {
return (hit_for_pass);
}
# Don't cache backend
if (req.url ~ "(discussion|server-status|pick-your-test-team|pick-your-team|apc.php|xmlrpc.php|_showprocesslist.php)") {
return (hit_for_pass);
}
if ( (!(req.url ~ "(wp-(login|admin|comments-post.php|server-status|discussion|cron.php)|login)")) || (req.request == "GET") ) {
unset beresp.http.set-cookie;
set beresp.ttl = 4h;
}
if (req.url ~ "\.(gif|jpg|jpeg|swf|css|js|txt|flv|mp3|mp4|pdf|ico|png)(\?.*|)$") {
set beresp.ttl = 30d;
}
#else {
# set beresp.do_esi = true;
#}
}
sub vcl_deliver {
# add debugging headers, so we can see what's cached
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT";
} else {
set resp.http.X-Cache = "MISS";
}
# remove some headers added by varnish
unset resp.http.Via;
unset resp.http.X-Varnish;
}
#
sub vcl_hash {
hash_data( req.url );
# And then add the device to the hash (if its a mobile device)
if (req.http.X-Device ~ "^smart") {
hash_data( req.http.X-Device );
}
# altering hash so subdomains are ignored.
# don't do this if you actually run different sites on different subdomains
# if ( req.http.host ) {
# hash_data( regsub( req.http.host, "^([^\.]+\.)+([a-z]+)$", "\1\2" ) );
# } else {
# hash_data( server.ip );
# }
# ensure separate cache for mobile clients (WPTouch workaround)
if( req.http.User-Agent ~ "(iPod|iPhone|incognito|webmate|dream|CUPCAKE|WebOS|blackberry9\d\d\d)" ){
hash_data("touch");
}
return (hash);
}
现在，我的默认网站www.tackle.com工作正常并且有一段时间了。正如我所说，我已经在服务器中添加了一些新站点，并希望从Varnish中提供它们。
我发现有点随机，如果我访问www.scrum / throttle / striker.com，我最终会收到www.tackle.com主页。所以，我显然有些不对劲。
知道我缺少什么吗？