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i.e., this rule element doesn't apply to DEL markers. This is a breaking change to how ExpiredObejctDeleteAllVersions functions today. This is necessary to avoid the following highly probable footgun scenario in the future. Scenario: The user uses tags-based filtering to select an object's time to live(TTL). The application sometimes deletes objects, too, making its latest version a DEL marker. The previous implementation skipped tag-based filters if the newest version was DEL marker, voiding the tag-based TTL. The user is surprised to find objects that have expired sooner than expected. * Add DelMarkerExpiration action This ILM action removes all versions of an object if its the latest version is a DEL marker. ```xml <DelMarkerObjectExpiration> <Days> 10 </Days> </DelMarkerObjectExpiration> ``` 1. Applies only to objects whose, • The latest version is a DEL marker. • satisfies the number of days criteria 2. Deletes all versions of this object 3. Associated rule can't have tag-based filtering Includes, - New bucket event type for deletion due to DelMarkerExpiration
75 lines
2.3 KiB
Go
75 lines
2.3 KiB
Go
// Copyright (c) 2024 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package lifecycle
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import (
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"encoding/xml"
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"time"
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)
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var errInvalidDaysDelMarkerExpiration = Errorf("Days must be a positive integer with DelMarkerExpiration")
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// DelMarkerExpiration used to xml encode/decode ILM action by the same name
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type DelMarkerExpiration struct {
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XMLName xml.Name `xml:"DelMarkerExpiration"`
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Days int `xml:"Days,omitempty"`
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}
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// Empty returns if a DelMarkerExpiration XML element is empty.
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// Used to detect if lifecycle.Rule contained a DelMarkerExpiration element.
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func (de DelMarkerExpiration) Empty() bool {
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return de.Days == 0
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}
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// UnmarshalXML decodes a single XML element into a DelMarkerExpiration value
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func (de *DelMarkerExpiration) UnmarshalXML(dec *xml.Decoder, start xml.StartElement) error {
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type delMarkerExpiration DelMarkerExpiration
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var dexp delMarkerExpiration
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err := dec.DecodeElement(&dexp, &start)
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if err != nil {
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return err
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}
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if dexp.Days <= 0 {
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return errInvalidDaysDelMarkerExpiration
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}
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*de = DelMarkerExpiration(dexp)
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return nil
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}
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// MarshalXML encodes a DelMarkerExpiration value into an XML element
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func (de DelMarkerExpiration) MarshalXML(enc *xml.Encoder, start xml.StartElement) error {
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if de.Empty() {
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return nil
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}
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type delMarkerExpiration DelMarkerExpiration
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return enc.EncodeElement(delMarkerExpiration(de), start)
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}
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// NextDue returns upcoming DelMarkerExpiration date for obj if
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// applicable, returns false otherwise.
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func (de DelMarkerExpiration) NextDue(obj ObjectOpts) (time.Time, bool) {
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if !obj.IsLatest || !obj.DeleteMarker {
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return time.Time{}, false
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}
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return ExpectedExpiryTime(obj.ModTime, de.Days), true
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}
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