EDIT: Well, it took me 18 hours, but it seems that defining DISCOURSE_CDN_URL keeps (at least) this site from rebuilding and/or functioning after a restore. I guess the next thing to test is doing a build without DISCOURSE_CDN_URL and then cranking up the container with the ENV var set. What I knew…

@pfaffman I’ve just stumbled across this exact same issue after battling through my other problems when trying to set up S3. Did you ever find out what was causing this?

Fixed it. Make sure you prepend your CDN url with http:// :facepalm: So instead of DISCOURSE_CDN_URL=your-cdn-url.com it should be DISCOURSE_CDN_URL=http://your-cdn-url.com. Only 2 hours wasted debugging it :smiley:

Hmm can we add some kind of warning here @eviltrout so people don’t run into this in the future?

This will pop up a warning if you don’t add a protocol: https://github.com/discourse/discourse/commit/9ab2a15691de4c280e234be8d50b0526b657db83

But bozos (like me) who do this with ENV variables will still have trouble. Is there a downside to printing the warning and prepending https://?

GlobalSetting is the object that takes your ENV variables into Discourse, so if you do it that way the warning should also appear.

[图片] pfaffman: But bozos (like me) who do this with ENV variables I too feel pretty silly for falling into this trap! :laughing:

If I’m remembering correctly, I lost 18 hours on it during what was supposed to be a Christmas break. :frowning_face:

DISCOURSE_CDN_URL 导致重建/恢复失败

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pfaffman (Jay Pfaffman) 2020 年3 月 5 日 20:41 6

但像我这样的笨蛋如果使用环境变量来做这件事，仍然会遇到麻烦。在打印警告的同时在 https:// 前面加上前缀有什么坏处吗？

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DISCOURSE_CDN_URL 导致重建/恢复失败

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