Seafile Pro 7.1 Centos 8 Swift libcurl error

Hi

I’m testing Seafile Pro 7.1 beta with CentOS 8. I cannot use swift backend, libcurl is failing on SSL certificates :

    libcurl failed to POST https://auth.cloud.ovh.net/v3/auth/tokens: Problem with the SSL CA cert (path? access rights?).

How do I setup the CA or debug ?

Using curl on the auth API is working well.

Regards.