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daemon: registerName(): don't reserve name twice

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daemon.generateNewName() already reserves the generated name, but its name
did not indicate it did. The daemon.registerName() assumed that the generated
name still had to be reserved, which could mean it would try to reserve the
same name again.

This patch renames daemon.generateNewName to daemon.generateAndReserveName
to make it clearer what it does, and updates registerName() to return early
if it successfully generated (and registered) the container name.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 3ba67ee214)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2023-06-13 13:33:33 +02:00
parent d7aa1e14e5
commit 6776279896
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GPG key ID: 76698F39D527CE8C
1 changed files with 4 additions and 3 deletions
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7
daemon/names.go
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@ -26,11 +26,12 @@ func (daemon *Daemon) registerName(container *container.Container) error {
return err
}
if container.Name == "" {
name, err := daemon.generateNewName(container.ID)
name, err := daemon.generateAndReserveName(container.ID)
if err != nil {
return err
}
container.Name = name
return nil
}
return daemon.containersReplica.ReserveName(container.Name, container.ID)
}
@ -42,7 +43,7 @@ func (daemon *Daemon) generateIDAndName(name string) (string, string, error) {
)
if name == "" {
if name, err = daemon.generateNewName(id); err != nil {
if name, err = daemon.generateAndReserveName(id); err != nil {
return "", "", err
}
return id, name, nil
@ -81,7 +82,7 @@ func (daemon *Daemon) releaseName(name string) {
daemon.containersReplica.ReleaseName(name)
}
func (daemon *Daemon) generateNewName(id string) (string, error) {
func (daemon *Daemon) generateAndReserveName(id string) (string, error) {
var name string
for i := 0; i < 6; i++ {
name = namesgenerator.GetRandomName(i)