rgw: return x-amz-version-id: null when delete obj in versioning suspended bucket

[joke-lee]

in aws

bucket wzyuliyangbucket01 is versioning suspend and we delete the pkbgum.jpg object without VersionId, there will create null version delete marker

DELETE /wzyuliyangbucket01/pkbgum.jpg HTTP/1.1
Host: s3.amazonaws.com
Accept-Encoding: identity
Date: Tue, 04 Sep 2018 01:36:02 GMT
Content-Length: 0
Authorization: AWS AKIAI62ZIFWLOCODA6RA:74p/nZb+S+18U6G+V7rtXliD0Ao=
User-Agent: Boto3/1.7.54 Python/2.7.5 Linux/3.10.0-327.el7.x86_64 Botocore/1.10.54

HTTP/1.1 204 No Content
x-amz-id-2: bPkiiVYz9edjyrIp+GeX514oQXLVMQ8WpgZdJkxDVXeeMZz9fH8pIWrFUxVtMB/+HrxLbraLQ1E=
x-amz-request-id: F9A0A725013FE6E3
Date: Tue, 04 Sep 2018 01:36:18 GMT
x-amz-version-id: null    <===create null version delete marker
x-amz-delete-marker: true
Server: AmazonS3

but in ceph rgw current

DELETE /test1/pkbgum.jpg HTTP/1.1
Host: 192.168.153.177
Accept-Encoding: identity
Date: Tue, 04 Sep 2018 01:33:38 GMT
Content-Length: 0
Authorization: AWS yly:F64fDhEZwHResd6XewYycNf1Jws=
User-Agent: Boto3/1.7.54 Python/2.7.5 Linux/3.10.0-327.el7.x86_64 Botocore/1.10.54

HTTP/1.1 204 No Content
x-amz-delete-marker: true   <=== yes create delete mark  but  no x-amz-version-id
x-amz-request-id: tx000000000000000000045-005b8de0f2-5e25-default
Date: Tue, 04 Sep 2018 01:33:38 GMT

fix http://tracker.ceph.com/issues/35814

Signed-off-by: yuliyang yuliyang@cmss.chinamobile.com

[joke-lee]

hi @mattbenjamin can you help to review this? thanks

[joke-lee]

hi @cbodley do you mind help review this?

[cbodley]

@joke-lee could you please open a tracker issue for mimic/luminous backports?

[joke-lee]

@cbodley fine

[joke-lee]

hi @cbodley , would you mind to add qa test tag to this pr?

[joke-lee]

hi @cbodley ,did this passed testing?

[cbodley]

@joke-lee not yet, other prs in my wip-cbodley-testing branch have been failing. the latest attempt is scheduled at http://pulpito.ceph.com/cbodley-2018-09-18_13:25:30-rgw-wip-cbodley-testing-distro-basic-smithi