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lifecycle: Remove a single delete marker with noncurrent expiry rule (#11444)

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NoncurrentVersionExpiry can remove single delete markers according to
S3 spec:

```
The NoncurrentVersionExpiration action in the same Lifecycle
configuration removes noncurrent objects 30 days after they become
noncurrent. Thus, in this example, all object versions are permanently
removed 90 days after object creation. You will have expired object
delete markers, but Amazon S3 detects and removes the expired object
delete markers for you.
```
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Anis Elleuch 2021-02-10 17:51:34 +01:00 committed by GitHub
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commit b8b44c879f
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12
pkg/bucket/lifecycle/lifecycle.go
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@ -245,7 +245,19 @@ func (lc Lifecycle) ComputeAction(obj ObjectOpts) Action {
return DeleteVersionAction
}
}
if obj.VersionID != "" && obj.DeleteMarker && obj.NumVersions == 1 {
// From https: //docs.aws.amazon.com/AmazonS3/latest/dev/lifecycle-configuration-examples.html :
// The NoncurrentVersionExpiration action in the same Lifecycle configuration removes noncurrent objects X days
// after they become noncurrent. Thus, in this example, all object versions are permanently removed X days after
// object creation. You will have expired object delete markers, but Amazon S3 detects and removes the expired
// object delete markers for you.
if time.Now().After(ExpectedExpiryTime(obj.ModTime, int(rule.NoncurrentVersionExpiration.NoncurrentDays))) {
return DeleteVersionAction
}
}
}
if !rule.NoncurrentVersionTransition.IsDaysNull() {
if obj.VersionID != "" && !obj.IsLatest && !obj.SuccessorModTime.IsZero() && obj.TransitionStatus != TransitionComplete {
// Non current versions should be deleted if their age exceeds non current days configuration