Function ValidName

internal/server/instance/instance_utils.go:685–709

ValidName validates an instance name. There are different validation rules for instance snapshot names so it takes an argument indicating whether the name is to be used for a snapshot or not.

(instanceName string, isSnapshot bool)

// ValidName validates an instance name. There are different validation rules for instance snapshot names
// so it takes an argument indicating whether the name is to be used for a snapshot or not.
func ValidName(instanceName string, isSnapshot bool) error {
	if isSnapshot {
		parentName, snapshotName, _ := api.GetParentAndSnapshotName(instanceName)
		err := validate.IsHostname(parentName)
		if err != nil {
			return fmt.Errorf("Invalid instance name: %w", err)
		}

		// Snapshot part is more flexible, but doesn't allow space or / character.
		if strings.ContainsAny(snapshotName, " /") {
			return errors.New("Invalid instance snapshot name: Cannot contain space or / characters")
		}
	} else {
		if strings.Contains(instanceName, instance.SnapshotDelimiter) {
			return fmt.Errorf("The character %q is reserved for snapshots", instance.SnapshotDelimiter)
		}

		err := validate.IsHostname(instanceName)
		if err != nil {
			return fmt.Errorf("Invalid instance name: %w", err)
		}
	}

	return nil
}

// CreateInternal creates an instance record and storage volume record in the database and sets up devices.
// Accepts a reverter that revert steps this function does will be added to. It is up to the caller to