| /* |
| Copyright The containerd Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package containerd |
| |
| import ( |
| "context" |
| "time" |
| |
| "github.com/containerd/containerd/leases" |
| ) |
| |
| // WithLease attaches a lease on the context |
| func (c *Client) WithLease(ctx context.Context) (context.Context, func(context.Context) error, error) { |
| _, ok := leases.FromContext(ctx) |
| if ok { |
| return ctx, func(context.Context) error { |
| return nil |
| }, nil |
| } |
| |
| ls := c.LeasesService() |
| |
| l, err := ls.Create(ctx, leases.WithRandomID(), leases.WithExpiration(24*time.Hour)) |
| if err != nil { |
| return nil, nil, err |
| } |
| |
| ctx = leases.WithLease(ctx, l.ID) |
| return ctx, func(ctx context.Context) error { |
| return ls.Delete(ctx, l) |
| }, nil |
| } |