As the official document says when we enable versioning on bucket, deleted objects can be restored as only delete marker will be created.
When objects will be actually deleted then?
As if deleting them only created delete marker, they will still consume place in bucket, how many days they will be present in bucket after deleting?
If Versioning is enabled on a bucket, objects will not be deleted.
Deleting the object will merely add a delete marker
All versions of an object will be charged for storage space
However, you can delete a specific version of the object
If all versions of a document and the delete marker are deleted, then the object is fully deleted
If versioning is not enabled, then deleting an object will immediately delete it.
You can create lifecycle rules that can delete objects, or object versions, after a defined period of time.
It will be there forever, unless you manually delete all the versions and the deletion marker. You can manually delete it by going tot he bucket, on versions, click "Show", then all the versions and deletion marker will be shown. You can delete them afterwards.
Related
Im trying to work with lifecycle settings in google bucket
my folder name : 2022-08-21T08:38:30_93731. so you can see the date is from yesterday
my rule in the bucket is :
{"rule": [{"action": {"type": "Delete"}, "condition": {"age": 1}}]}
but the folder the objects there is still available
how can i know if my lifecycle is working ?
As per this sample example your json code is correct but when coming to delete there are few exceptions. Kindly check if this might be the reason not working.
The Delete action deletes an object when the object meets all conditions specified in the lifecycle rule.
Exception:
In buckets with Object Versioning enabled, deleting the live version of an object causes it to become a noncurrent version, while deleting a noncurrent version deletes that version permanently. See the configuration for deleting objects for an example of using the Delete action along with Object Versioning.
The Delete action does not take effect on an object while the object has an object hold placed on it or a retention policy that it has not yet fulfilled. As long as the conditions in the Delete action remain satisfied for the object, the Delete action occurs after any object hold is removed and any retention policy is fulfilled.
Apart from the above, you need to have grant storage.buckets.delete
IAM Permissions on the cloud storage bucket to delete.
I currently have versioning set up and thus a delete results to a delete marker and not to a permanent delete, which is what I like.
Is there a lifecycle rule that I can add so that after 30 days since the delete markers were created, they are permanently deleted?
I only want to do this for delete markers, not for expiring anything else.
Straight from the documentation:
<LifecycleConfiguration>
<Rule>
...
<NoncurrentVersionExpiration>
<NoncurrentDays>30</NoncurrentDays>
</NoncurrentVersionExpiration>
</Rule>
</LifecycleConfiguration>
Important thing to note is:
A delete marker with zero noncurrent versions is referred to as an
expired object delete marker.
I have versioning enabled the S3 bucket.
I want to completely delete an object after a certain period of time after the object has been given a delete marker.
Is it possible to do this using lifecycle rules?
You can probably achieve this by using two S3 Lifecycle rules:
Permanently delete previous versions of objects, for which you can specify "Number of days after objects become previous versions". I presume that deleting an object, which places a Delete Marker on the object, effectively makes the 'current' version (prior to Deletion) become a 'previous' version.
Delete expired delete markers or incomplete multipart uploads, which should then deleting the 'solo' Delete Marker.
I haven't tried that combination, so I recommend some testing.
From the Object Lock docs:
When you lock an object version, Amazon S3 stores the lock information in the metadata for that object version. Placing a retention period or legal hold on an object protects only the version specified in the request. It doesn't prevent new versions of the object from being created. If you put an object into a bucket that has the same key name as an existing, protected object, Amazon S3 creates a new version of that object, stores it in the bucket as requested, and reports the request as completed successfully. The existing, protected version of the object remains locked according to its retention configuration.
Assuming my bucket does not apply retention period by default, and I have a newly created S3 object with a legal hold. I overwrite it with another file twice. Will only the original version be protected, and all subsequent uploads be squashed into one version?
After I disable the legal hold,
Are my versions still maintained?
Will all further uploads overwrite the latest version?
If I delete the object, are all versions deleted? Or only the latest version?
After some testing,
Since versioning is already on, versions are still maintained
Subsequent uploads will still have their own versions
Only the latest version, unless you specify a version id
I have created an AWS S3 bucket with Object Lock settings for Compliance Mode. While I upload a file in the bucket (And the in the File settings I can see that the Object Lock is enabled in compliance mode), I was able to delete the file. I am not sure, as per the AWS documentation, even the root user cannot delete the file with Compliance Mode Object Lock.
Please help if I am misunderstood.
Important
Object locks apply to individual object versions only.
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-lock-overview.html
Take a look at How Do I See the Versions of an S3 Object? and switch your console view to "show" object versions. You should find that you didn't actually delete the locked object version.
What you did when you "deleted" the object was create a delete marker.
A delete marker is a placeholder (marker) for a versioned object that was named in a simple DELETE request. Because the object was in a versioning-enabled bucket, the object was not deleted. The delete marker, however, makes Amazon S3 behave as if it had been deleted.
https://docs.aws.amazon.com/AmazonS3/latest/dev/DeleteMarker.html
With the console in the "hide" versions mode, delete requests are "simple DELETE requests" as mentioned above.
With the console in the "show" versions mode, delete operations you attempt are, instead, on specific versions of the object, and you should find that you are unable to delete any versions with object locks.
You'll also find that you can apparently overwrite an object with a new upload, but again you can't actually do that, because uploading an object with the same key in a versioned bucket (and enabling versioning is mandatory for object lock to work) doesn't overwrite the object -- it just creates a newer version of the object, leaving older versions intact.
When the top (newest, current) version of an object is a delete marker, the object disappears from the console and isn't included in ListObjects requests sent to the bucket via the API, but does appear in ListObjectVersions API requests. The "show/hide" setting is only applicable to your personal console view, it doesn't change actual bucket behavior.
The timestamps on object versions can't be altered, so locking an object version not only prevents deletion of the object contents, it also preserves a record of when that object was originally created. "Overwriting" an object creates a new version with a new timestamp, and the timestamps on the versions prove what content existed in the bucket at any given point in time.