经历了之前配置Varnish Nginx 多站点配置的坑之后,写写这其中的过程。
或者你和我一样会遇到这样的错误
2014/09/21 11:16:08 [emerg] 32344#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2014/09/21 11:16:08 [emerg] 32344#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2014/09/21 11:16:08 [emerg] 32344#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2014/09/21 11:16:08 [emerg] 32344#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2014/09/21 11:16:08 [emerg] 32344#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2014/09/21 11:16:08 [emerg] 32344#0: still could not bind()
然后我检查了好几遍都没有发现错误的原因(ps:多个网站),于是只好一步步检查,最后发现了以下几个事实:
如下面的例子
server {
server_name phodal.com;
rewrite ^(.*) http://www.phodal.com$1 permanent;
}
会继续占用80端口,这会导致你可能找不到真正失败的原因,这时我们需要去掉Nginx.conf中的重定向,而使用Varnish中的Rewrite,如
if (req.http.host ~ "^(www\.)?example\.com" && req.url~ "^/images/") {
set req.http.host = "images.example.com";
set req.url = regsub(req.url, "^/images/", "/");
}
可以将http://www.example.com/images/foo.jpg
重定向到 http://images.example.com/foo.jpg.
。下面的例子便是都走向example.com
set req.http.host = regsub(req.http.host, "^www\.example\.com$","phodal.com");
一个WP Super Cache的Wordpress的配置如下
set $cache_uri $request_uri;
# POST requests and urls with a query string should always go to PHP
if ($request_method = POST) {
set $cache_uri 'null cache';
}
if ($query_string != "") {
set $cache_uri 'null cache';
}
# Don't cache uris containing the following segments
if ($request_uri ~* "(/wp-admin/|/xmlrpc.php|/wp-(app|cron|login|register|mail).php|wp-.*.php|/feed/|index.php|wp-comments-popup.php|wp-links-opml.php|wp-locations.php|sitemap(_index)?.xml|[a-z0-9_-]+-sitemap([0-9]+)?.xml)") {
set $cache_uri 'null cache';
}
# Don't use the cache for logged in users or recent commenters
if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_logged_in") {
set $cache_uri 'null cache';
}
location = /favicon.ico { log_not_found off; access_log off; }
# Use cached or actual file if they exists, otherwise pass request to WordPress
location / {
try_files /wp-content/cache/supercache/$http_host/$cache_uri/index.html $uri $uri/ /index.php ;
etag on;
if (-f $request_filename/index.html){
rewrite (.*) $1/index.html break;
}
if (-f $request_filename/index.php){
rewrite (.*) $1/index.php;
}
if (!-f $request_filename){
rewrite (.*) /index.php;
}
}
于是对于这样的例子,我们似乎无法使用Varnish来Rewrite
围观我的Github Idea墙, 也许,你会遇到心仪的项目