Traefik 2.4 & ceph rados gateway s3

Hi I need your help

I've deployed a traefik 1.7 with file provider to access to my Ceph Cluster rados gateway S3 (self signed certificat)
Everything is right. with flag transport insecureskipverify = true.

But doesn't works with traefik 2.4.8. On my ceph cluster gateway rados use a self-signed certificat .pem

Do you have any experience with traefik 2.4 and Ceph rados s3 ?