8cf3fad8d4
Add leases manager to the leases package and use the interface on the client and service. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package leases
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import (
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"context"
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"time"
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)
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// Opt is used to set options on a lease
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type Opt func(*Lease) error
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// Manager is used to create, list, and remove leases
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type Manager interface {
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Create(context.Context, ...Opt) (Lease, error)
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Delete(context.Context, Lease) error
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List(context.Context, ...string) ([]Lease, error)
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}
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// Lease retains resources to prevent cleanup before
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// the resources can be fully referenced.
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type Lease struct {
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ID string
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CreatedAt time.Time
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Labels map[string]string
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}
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// WithLabels sets labels on a lease
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func WithLabels(labels map[string]string) Opt {
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return func(l *Lease) error {
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l.Labels = labels
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return nil
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}
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}
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// WithExpiration sets an expiration on the lease
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func WithExpiration(d time.Duration) Opt {
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return func(l *Lease) error {
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if l.Labels == nil {
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l.Labels = map[string]string{}
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}
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l.Labels["containerd.io/gc.expire"] = time.Now().Add(d).Format(time.RFC3339)
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return nil
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}
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}
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