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CDN for static assets in backend apps
planned
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Kai Marshland
I would like to use Render's CDN for static sites to serve static assets for my non-static apps built with frameworks like Rails or Django.
This would let me turn off the option for Rails to serve static files. In a typical setup, this would be off and static assets would be served directly from the CDN and these requests would never hit the (comparatively slow) Rails app.
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Anurag Goel
We're planning to enable default CDN caching for backend applications later this year. This means any web service will be able to cache assets at the edge, with support for
Cache-Control
headers.Anurag Goel
Merged in a post:
Automatic edge caching on apps
A
Alex J
On Vercel you can get automatic edge-caching on all requests simply by defining a cache header.
Their edge-caching is not only possible for SSG-sites either, even if that's what they promote, you can even use their edge caching on api requests or even when doing an SSR-enabled Next.js-app.
I guess it is possible to configure one's own integration with Cloudflare or Fastly on top of Render but it'd be nicer if it'd be possible to just tick a box in render's UI and that it would be automatically cleared on every deploy, etc, similar to Vercel.
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Sylvain Kerkour
I would like to see this as well, For me the biggest selling point would be instant and painless cache invalidation on each deploy, like the static websites!
My use case is as following:
my users embed
/libs/client.js
on their websites, which is served by my backend. I want this file to be cached at each CDN edges. The file may change at each deploy, so I don't want a painful and manual cache invalidation (like Cloudfront) each time the file change.D
Daniel Boggs
I would like to see this as well as the ability for the CDN to honor the cache control headers for responses that are technically dynamically generated as well. A reverse proxy for all http traffic essentially, not only static assets.
Anurag Goel
Daniel Boggs: good point. We'll make sure that our CDN implementation for backend servers honors cache control headers from the origin.
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Travis Fischer
Anurag Goel: Just adding that we'd strongly like this functionality as well. Using cloudflare as a go-between is a potentially viable workaround for now but the way we have our DNS setup in addition to transparently handling dynamic subdomains alongside SSL will make this challenging. We'd much rather just enable this option within Render and have it honor cache-control headers for us.
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Travis Fischer
Anurag Goel: One source of inspiration for related functionality from ZEIT https://zeit.co/docs/v2/serverless-functions/edge-caching/
Anurag Goel
planned
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Eyal
Anurag Goel: +1 on this FR. Can you share an estimated ETA 🤓 ?
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Frank Kumro Jr
Anurag Goel: This has been planned for almost 1 year, any chance you can provide an estimate?