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lease.go
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/
lease.go
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/*
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, opts ...leases.Opt) (context.Context, func(context.Context) error, error) {
nop := func(context.Context) error { return nil }
_, ok := leases.FromContext(ctx)
if ok {
return ctx, nop, nil
}
ls := c.LeasesService()
if len(opts) == 0 {
// Use default lease configuration if no options provided
opts = []leases.Opt{
leases.WithRandomID(),
leases.WithExpiration(24 * time.Hour),
}
}
l, err := ls.Create(ctx, opts...)
if err != nil {
return ctx, nop, err
}
ctx = leases.WithLease(ctx, l.ID)
return ctx, func(ctx context.Context) error {
return ls.Delete(ctx, l)
}, nil
}