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ceph-csi/internal/rbd/globals.go
Niels de Vos dfb48bac17 util: add CSIDriver.GetInstanceID()
There has been some confusion about using different variables for the
InstanceID of the RBD-driver. By removing the global variable
CSIInstanceID, there should be no confusion anymore what variable to
use.

Signed-off-by: Niels de Vos <ndevos@ibm.com>
2024-08-05 17:04:52 +00:00

93 lines
3.1 KiB
Go

/*
Copyright 2021 The Ceph-CSI 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 rbd
import (
"fmt"
"github.com/ceph/ceph-csi/internal/journal"
)
var (
// volJournal and snapJournal are used to maintain RADOS based journals for CO generated
// VolumeName to backing RBD images.
volJournal *journal.Config
snapJournal *journal.Config
// rbdHardMaxCloneDepth is the hard limit for maximum number of nested volume clones that are taken before flatten
// occurs.
rbdHardMaxCloneDepth uint
// rbdSoftMaxCloneDepth is the soft limit for maximum number of nested volume clones that are taken before flatten
// occurs.
rbdSoftMaxCloneDepth uint
maxSnapshotsOnImage uint
minSnapshotsOnImageToStartFlatten uint
skipForceFlatten bool
// krbd features supported by the loaded driver.
krbdFeatures uint
)
// SetGlobalInt provides a way for the rbd-driver to configure global variables
// in the rbd package.
//
// TODO: these global variables should be set in the ControllerService and
// NodeService where appropriate. Using global variables limits the ability to
// configure these options based on the Ceph cluster or StorageClass.
func SetGlobalInt(name string, value uint) {
switch name {
case "rbdHardMaxCloneDepth":
rbdHardMaxCloneDepth = value
case "rbdSoftMaxCloneDepth":
rbdSoftMaxCloneDepth = value
case "maxSnapshotsOnImage":
maxSnapshotsOnImage = value
case "minSnapshotsOnImageToStartFlatten":
minSnapshotsOnImageToStartFlatten = value
case "krbdFeatures":
krbdFeatures = value
default:
panic(fmt.Sprintf("BUG: can not set unknown variable %q", name))
}
}
// SetGlobalBool provides a way for the rbd-driver to configure global
// variables in the rbd package.
//
// TODO: these global variables should be set in the ControllerService and
// NodeService where appropriate. Using global variables limits the ability to
// configure these options based on the Ceph cluster or StorageClass.
func SetGlobalBool(name string, value bool) {
switch name {
case "skipForceFlatten":
skipForceFlatten = value
default:
panic(fmt.Sprintf("BUG: can not set unknown variable %q", name))
}
}
// InitJournals initializes the global journals that are used by the rbd
// package. This is called from the rbd-driver on startup.
//
// TODO: these global journals should be set in the ControllerService and
// NodeService where appropriate. Using global journals limits the ability to
// configure these options based on the Ceph cluster or StorageClass.
func InitJournals(instance string) {
volJournal = journal.NewCSIVolumeJournal(instance)
snapJournal = journal.NewCSISnapshotJournal(instance)
}