CloudFront 图像缓存控制标头

发布于 2024-11-29 17:48:31 字数 325 浏览 3 评论 0原文

1- 这是一个有效的缓存控制标头吗：

Cache-Control: max-age=86400, s-maxage=3600

2- 我正在尝试为通过 CloudFront 从 S3 提供服务的对象设置缓存控制标头。图像不会经常改变，但有时会改变。这看起来是一个很好的缓存控制吗？ CloudFront 应每 60 分钟重新验证一次，但用户将缓存一整天。（我不太担心单个用户，更担心继续向新用户提供过时的图像）。

3-我还应该使用其他标头吗？（即代理重新验证）

更改 S3 对象上的这些设置并不容易，因此我试图第一次就正确。谢谢。

原文

1- Is this a valid cache control header:

Cache-Control: max-age=86400, s-maxage=3600

2- I am trying to set cache control headers for objects served from S3 through CloudFront. The images don't often change, but sometimes can. Does this seem like a good cache control for this? CloudFront should re-validate every 60 minutes, but the user will cache for a full day. (I'm less worried about an individual user and more worried about continuing to serve the stale image to new users).

3- Are there other headers I should use? (ie. proxy-revalidate)

Its not horrendously easy to change these settings on S3 objects so I'm trying to get it right the first time. Thanks.

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时光病人 2024-12-06 17:48:31

我刚刚让它与

Access-control-Max-Age （在 S3 COR 设置中设置）
一起使用缓存控制
过期

理论上，从 AWS S3 / Cloudfront 文档来看，只有 1. 有效。在实践中，两者都需要。

基思

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风渺 2024-12-06 17:48:31

这就是我要做的工作：

Cache-Control: max-age=29030400, public
Expires: Wed, 30 Dec 2015 18:00:00 GMT

理论上，你只需要其中之一。但是 S3 和 CloudFront 的整个浏览器缓存一直是我的一大痛苦，所以我喜欢将它们都保留在那里。我还将以下内容放入我的 .htaccess 文件中：

# BEGIN Caching
Header set Cache-Control "max-age=29030400, public"
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 1 year"
    ExpiresByType text/css "access plus 1 year"
    ExpiresByType text/plain "access plus 1 year"
    ExpiresByType image/gif "access plus 1 year"
    ExpiresByType image/png "access plus 1 year"
    ExpiresByType image/jpeg "access plus 1 year"
    ExpiresByType application/x-javascript "access plus 1 year"
    ExpiresByType application/javascript "access plus 1 year"
    ExpiresByType application/x-icon "access plus 1 year"
</IfModule>
# END Caching

Here's what I got to work:

Cache-Control: max-age=29030400, public
Expires: Wed, 30 Dec 2015 18:00:00 GMT

In theory, you only need one or the other. But this whole browser caching thing with S3 and CloudFront has been a big pain in my backside, so I like to keep them both in there. And I also put the following in my .htaccess file:

# BEGIN Caching
Header set Cache-Control "max-age=29030400, public"
<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 1 year"
    ExpiresByType text/css "access plus 1 year"
    ExpiresByType text/plain "access plus 1 year"
    ExpiresByType image/gif "access plus 1 year"
    ExpiresByType image/png "access plus 1 year"
    ExpiresByType image/jpeg "access plus 1 year"
    ExpiresByType application/x-javascript "access plus 1 year"
    ExpiresByType application/javascript "access plus 1 year"
    ExpiresByType application/x-icon "access plus 1 year"
</IfModule>
# END Caching

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