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Nginx 图像头缓存未更新

tag-icon • tag-icon nginx cache http-headers
Nginx 图像头缓存未更新

我有一个图像文件https://www.example.com/img/bart-had-a-groove.gif

这是我的站点配置中唯一的缓存块，全局 nginx.conf 中没有缓存设置。

location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
  expires 1M;
  access_log off;
  add_header Cache-Control "public, no-transform, max-age=2628000";
}

现在，您可以看到我的标题设置为Cache-Control "public, no-transform, max-age=2628000";，但是如果您对图像进行 CURL 操作，例如，curl -X GET -I https://www.example.com/img/bart-had-a-groove.gif您会得到：

HTTP/1.1 200 OK
Content-Type: image/gif
Connection: keep-alive
Server: nginx/1.13.9
Content-Length: 771510
Last-Modified: Fri, 17 Feb 2017 17:26:23 GMT
ETag: "58a7323f-bc5b6"
Pragma: public
Cache-Control: public
Accept-Ranges: bytes
Date: Mon, 19 Mar 2018 21:49:33 GMT
Expires: Wed, 18 Apr 2018 21:49:33 GMT

您可以看到与Cache-Control: public配置不匹配。它缺少该no-transform, max-age=2628000部分。

我systemctl stop nginx && systemctl start nginx && systemctl reload nginx追逐每一个变化。

更新 其余服务器块：

server {
  listen 80;
  listen 443;
  server_name example.com;
  return 301 https://www.$server_name$request_uri;
}

server {
  listen 80;
  listen 443 ssl http2;
  root /var/www/example.com/htdocs/;

  index index.html index.htm;

  server_name www.example.com;

  location / {
    autoindex on;
    try_files $uri $uri/ =404;    
  }

  location ~ \.php$ {
    fastcgi_split_path_info ^(.+?\.php)(|/.*)$;
    # Security note: If you're running a version of PHP older than the
    # latest 5.3, you should have "cgi.fix_pathinfo = 0;" in php.ini.
    # See http://serverfault.com/q/627903/94922 for details.
    include fastcgi_params;
    # Block httpoxy attacks. See https://httpoxy.org/.
    fastcgi_param HTTP_PROXY "";
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_param QUERY_STRING $query_string;
    fastcgi_intercept_errors on;
    # PHP 5 socket location.
    #fastcgi_pass unix:/var/run/php5-fpm.sock;
    # PHP 7 socket location.
    fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
  }

location ~* \.(?:jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
  #expires 1M;
  access_log off;
  add_header Cache-Control "public, no-transform, max-age=2628000";
}

  pagespeed on;
  # Needs to exist and be writable by nginx.  Use tmpfs for best performance.
  pagespeed FileCachePath /var/ngx_pagespeed_cache;
  # Ensure requests for pagespeed optimized resources go to the pagespeed handler
  # and no extraneous headers get set.
  location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
    add_header "" "";
  }
  location ~ "^/pagespeed_static/" { }
  location ~ "^/ngx_pagespeed_beacon$" { }
}

答案1

您正在使用两个相关的配置指令，关于“Cache-Control”标头（见下文）。我建议只使用添加标题正如您所理解的“Cache-Control”标头的“no-transform”指令。

1M 到期；

--> 将设置标题“Cache-Control”和“Expires”。

查看文档：

启用或禁用添加或修改“Expires”和“Cache-Control”响应标头...

add_header Cache-Control "public, no-transform, max-age=2628000";

--> 将手动设置“Cache-Control”标头。

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