Add sync option on lease removal

Signed-off-by: Derek McGowan <derek@mcgstyle.net>

leases/lease.go

@@ -24,10 +24,13 @@ import (
 // Opt is used to set options on a lease
 type Opt func(*Lease) error
 
+// DeleteOpt allows configuring a delete operation
+type DeleteOpt func(context.Context, *DeleteOptions) error
+
 // Manager is used to create, list, and remove leases
 type Manager interface {
 	Create(context.Context, ...Opt) (Lease, error)
-	Delete(context.Context, Lease) error
+	Delete(context.Context, Lease, ...DeleteOpt) error
 	List(context.Context, ...string) ([]Lease, error)
 }
 
@@ -39,6 +42,19 @@ type Lease struct {
 	Labels    map[string]string
 }
 
+// DeleteOptions provide options on image delete
+type DeleteOptions struct {
+	Synchronous bool
+}
+
+// SynchronousDelete is used to indicate that a lease deletion and removal of
+// any unreferenced resources should occur synchronously before returning the
+// result.
+func SynchronousDelete(ctx context.Context, o *DeleteOptions) error {
+	o.Synchronous = true
+	return nil
+}
+
 // WithLabels sets labels on a lease
 func WithLabels(labels map[string]string) Opt {
 	return func(l *Lease) error {

leases/proxy/manager.go

@@ -57,9 +57,17 @@ func (pm *proxyManager) Create(ctx context.Context, opts ...leases.Opt) (leases.
 	}, nil
 }
 
-func (pm *proxyManager) Delete(ctx context.Context, l leases.Lease) error {
+func (pm *proxyManager) Delete(ctx context.Context, l leases.Lease, opts ...leases.DeleteOpt) error {
+	var do leases.DeleteOptions
+	for _, opt := range opts {
+		if err := opt(ctx, &do); err != nil {
+			return err
+		}
+	}
+
 	_, err := pm.client.Delete(ctx, &leasesapi.DeleteRequest{
-		ID: l.ID,
+		ID:   l.ID,
+		Sync: do.Synchronous,
 	})
 	return err
 }