Ceph » rgw

We use ceph and radosgw to access our storage via the s3 java api. When we try to set a CORS rule, the java api returns an AmazonS3Exception (printing out "null") with the error code MalformedXML (debugging shows that none of the fields of my CORSRule objects has a field that is null).

I was exactly following the s3 guide here: https://docs.amazonaws.cn/en_us/AmazonS3/latest/dev/ManageCorsUsingJava.html

This is my implementation:

private void setCORS() {
    List<CORSRule> corsRules = new ArrayList<>();
    corsRules.add(new CORSRule().withAllowedOrigins(Arrays.asList("*ROCKET_CHAT_DOMAIN*")). //
            withAllowedMethods(Arrays.asList(AllowedMethods.PUT, AllowedMethods.POST, AllowedMethods.GET, AllowedMethods.HEAD)). //
            withMaxAgeSeconds(3000). //
            withAllowedHeaders(Arrays.asList("*")));
    s3Client.setBucketCrossOriginConfiguration(cephBucket, new BucketCrossOriginConfiguration(corsRules));
}

Strange is that the windows tool S3 browser returns the exact same result when I try to create the CORS rule.

Does anybody have experinece setting CORS rules via radosgw in ceph? Optimally using the S3 libraries?