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add rbd-nbd mounter in storage class

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Signed-off-by: Huamin Chen <hchen@redhat.com>
This commit is contained in:
Huamin Chen 2018-09-18 14:09:12 +00:00
parent 6f3625b11e
commit 30a5d9a6e7
3 changed files with 15 additions and 4 deletions
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2
examples/rbd/storageclass.yaml
View File

@ -25,4 +25,6 @@ parameters:
# Ceph users for operating RBD # Ceph users for operating RBD
adminid: admin adminid: admin
userid: kubernetes userid: kubernetes
# uncomment the following to use rbd-nbd as mounter on supported nodes
#mounter: rbd-nbd
reclaimPolicy: Delete reclaimPolicy: Delete

11
pkg/rbd/rbd_attach.go
View File

@ -35,7 +35,7 @@ const (
var ( var (
hostRootFS = "/" hostRootFS = "/"
useNBD = false hasNBD = false
) )
func init() { func init() {
@ -43,7 +43,7 @@ func init() {
if len(host) > 0 { if len(host) > 0 {
hostRootFS = host hostRootFS = host
} }
useNBD = checkRbdNbdTools() hasNBD = checkRbdNbdTools()
} }
func getDevFromImageAndPool(pool, image string) (string, bool) { func getDevFromImageAndPool(pool, image string) (string, bool) {
@ -226,12 +226,15 @@ func attachRBDImage(volOptions *rbdVolume, userId string, credentials map[string
image := volOptions.VolName image := volOptions.VolName
imagePath := fmt.Sprintf("%s/%s", volOptions.Pool, image) imagePath := fmt.Sprintf("%s/%s", volOptions.Pool, image)
useNBD := false
cmdName := "rbd" cmdName := "rbd"
moduleName := "rbd" moduleName := "rbd"
if useNBD { if volOptions.Mounter == "rbd-nbd" && hasNBD {
useNBD = true
cmdName = "rbd-nbd" cmdName = "rbd-nbd"
moduleName = "nbd" moduleName = "nbd"
} }
devicePath, found := waitForPath(volOptions.Pool, image, 1, useNBD) devicePath, found := waitForPath(volOptions.Pool, image, 1, useNBD)
if !found { if !found {
attachdetachMutex.LockKey(string(imagePath)) attachdetachMutex.LockKey(string(imagePath))
@ -258,7 +261,7 @@ func attachRBDImage(volOptions *rbdVolume, userId string, credentials map[string
if err == wait.ErrWaitTimeout { if err == wait.ErrWaitTimeout {
return "", fmt.Errorf("rbd image %s is still being used", imagePath) return "", fmt.Errorf("rbd image %s is still being used", imagePath)
} }
// return error if any other errors were encountered during wating for the image to becme avialble // return error if any other errors were encountered during wating for the image to become available
if err != nil { if err != nil {
return "", err return "", err
} }

6
pkg/rbd/rbd_util.go
View File

@ -42,6 +42,7 @@ const (
rbdImageWatcherInitDelay = 1 * time.Second rbdImageWatcherInitDelay = 1 * time.Second
rbdImageWatcherFactor = 1.4 rbdImageWatcherFactor = 1.4
rbdImageWatcherSteps = 10 rbdImageWatcherSteps = 10
rbdDefaultMounter = "rbd"
) )
type rbdVolume struct { type rbdVolume struct {
@ -54,6 +55,7 @@ type rbdVolume struct {
VolSize int64 `json:"volSize"` VolSize int64 `json:"volSize"`
AdminId string `json:"adminId"` AdminId string `json:"adminId"`
UserId string `json:"userId"` UserId string `json:"userId"`
Mounter string `json:"mounter"`
} }
type rbdSnapshot struct { type rbdSnapshot struct {
@ -226,6 +228,10 @@ func getRBDVolumeOptions(volOptions map[string]string) (*rbdVolume, error) {
if !ok { if !ok {
rbdVol.UserId = rbdDefaultUserId rbdVol.UserId = rbdDefaultUserId
} }
rbdVol.Mounter, ok = volOptions["mounter"]
if !ok {
rbdVol.Mounter = rbdDefaultMounter
}
return rbdVol, nil return rbdVol, nil
} }