Hi, I’m trying to set up Discourse to use Scaleways S3-compatible Object Storage, but I can’t seem to get it to work and I’m not sure where the problem is. I’ve verified that the both of the buckets work using aws-cli and that the CORS settings are properly set up by following the official docs fr…

Hey @dino , did that end up helping out? I’m having the same problem here and I’m about to give up and switch to Amazon S3.

Hey @FroggyC , I actually ran out of time to debug this so I didn’t experiment with changing the gem vesions after all. I switched to using Amazon S3 using the official docs and things worked right away. Sorry it’s not better news…

Thank you. I guess we will have to do the same. Thank you!

Same problem here. Is there anything we can do to help debug this? Like for example accessing the bucket via CLI and sending in log files? The s3_region is ignored, right? Because Scaleway uses different values than AWS.

You might try asking scaleway – the onus of compatibility is on them. If they aren’t fully AWS S3 compatible, they should fix that.

[image] codinghorror: If they aren’t fully AWS S3 compatible, they should fix that. You’re implying it is their fault, yet so far you’ve been ignoring @dino ’s comment: [image] Using Scaleway s3-compatible object storage Support That’s possible, but…

OK, prove it. Show me the documentation and log traces that demonstrate this is the case. If you can provide actual evidence the problem on our end, I will look.

Sure, that’s what I meant by [image] overheadhunter: Is there anything we can do to help debug this? So how can I tell discourse to log its s3 connection attempts? Once we know for sure, what URL it wants to connect to, I can intercept the traffic and share the results.

the reason the s3 upload/backup does not work is the region that needs to be set to fr-par (or nl-ams) which can only be set by circumventing discourse’s SiteSetting validation: (via ./launcher enter app then rails c) SiteSetting.find_by(name: 's3_region').update_attribute(:value, 'fr-par') after…

Aha. Do we need a special “s3 compatible region” site settings field @falco ? That would allow people to key in completely arbitrary (and thus ‘made up’ from Amazon’s perspective) regions?

Using Scaleway s3-compatible object storage

Support

Falco (Falco) April 6, 2021, 2:50pm 28

The supported configuration for Scaleway lives at Configure an S3 compatible object storage provider for uploads

Topic		Replies	Views
Configure an S3 compatible object storage provider for uploads Self-Hosting cdn , configuring , how-to , reference	263	46943	May 20, 2026
Set up file and image uploads to S3 Self-Hosting configuring , how-to	35	120331	October 25, 2025
SSL_connect returned=1 errno=0 peeraddr=162.243.189.2:443 state=error: certificate verify failed (Hostname mismatch) Self-hosting s3	19	4573	January 9, 2024
Issues with AWS CDN and S3 Self-hosting cdn , s3	22	464	December 30, 2025
Extend S3 configuration for other s3 API compatible cloud storage solutions Feature	39	11111	July 4, 2018

Using Scaleway s3-compatible object storage

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