capability for non CSI storage
This commit is contained in:
zhangmin
@@ -20,82 +20,111 @@ package capability
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import (
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"fmt"
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"os"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/util/version"
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"k8s.io/client-go/discovery"
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"reflect"
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"strconv"
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"strings"
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"time"
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snapapi "github.com/kubernetes-csi/external-snapshotter/v2/pkg/apis/volumesnapshot/v1beta1"
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snapshotv1beta1 "github.com/kubernetes-csi/external-snapshotter/v2/pkg/apis/volumesnapshot/v1beta1"
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snapshotclient "github.com/kubernetes-csi/external-snapshotter/v2/pkg/client/clientset/versioned/typed/volumesnapshot/v1beta1"
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snapinformers "github.com/kubernetes-csi/external-snapshotter/v2/pkg/client/informers/externalversions/volumesnapshot/v1beta1"
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snaplisters "github.com/kubernetes-csi/external-snapshotter/v2/pkg/client/listers/volumesnapshot/v1beta1"
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v1strorage "k8s.io/api/storage/v1"
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snapshotlisters "github.com/kubernetes-csi/external-snapshotter/v2/pkg/client/listers/volumesnapshot/v1beta1"
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storagev1 "k8s.io/api/storage/v1"
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storagev1beta1 "k8s.io/api/storage/v1beta1"
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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"k8s.io/apimachinery/pkg/util/version"
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"k8s.io/apimachinery/pkg/util/wait"
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scinformers "k8s.io/client-go/informers/storage/v1"
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"k8s.io/client-go/kubernetes"
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storageinformersv1 "k8s.io/client-go/informers/storage/v1"
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storageinformersv1beta1 "k8s.io/client-go/informers/storage/v1beta1"
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"k8s.io/client-go/kubernetes/scheme"
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sclisters "k8s.io/client-go/listers/storage/v1"
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storageclient "k8s.io/client-go/kubernetes/typed/storage/v1"
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storagelistersv1 "k8s.io/client-go/listers/storage/v1"
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storagelistersv1beta1 "k8s.io/client-go/listers/storage/v1beta1"
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"k8s.io/client-go/tools/cache"
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"k8s.io/client-go/util/workqueue"
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"k8s.io/klog"
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crdapi "kubesphere.io/kubesphere/pkg/apis/storage/v1alpha1"
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clientset "kubesphere.io/kubesphere/pkg/client/clientset/versioned"
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capability "kubesphere.io/kubesphere/pkg/apis/storage/v1alpha1"
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crdscheme "kubesphere.io/kubesphere/pkg/client/clientset/versioned/scheme"
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storageinformers "kubesphere.io/kubesphere/pkg/client/informers/externalversions/storage/v1alpha1"
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crdlisters "kubesphere.io/kubesphere/pkg/client/listers/storage/v1alpha1"
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capabilityclient "kubesphere.io/kubesphere/pkg/client/clientset/versioned/typed/storage/v1alpha1"
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capabilityinformers "kubesphere.io/kubesphere/pkg/client/informers/externalversions/storage/v1alpha1"
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capabilitylisters "kubesphere.io/kubesphere/pkg/client/listers/storage/v1alpha1"
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)
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const (
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minKubernetesVersion = "v1.17.0"
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CSIAddressFormat = "/var/lib/kubelet/plugins/%s/csi.sock"
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minSnapshotSupportedVersion = "v1.17.0"
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csiAddressFormat = "/var/lib/kubelet/plugins/%s/csi.sock"
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annotationSupportSnapshot = "storageclass.kubesphere.io/support-snapshot"
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)
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type csiAddressGetter func(storageClassProvisioner string) string
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type StorageCapabilityController struct {
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k8sClient kubernetes.Interface
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storageClassCapabilityClient clientset.Interface
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storageClassLister sclisters.StorageClassLister
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storageClassSynced cache.InformerSynced
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snapshotClassLister snaplisters.VolumeSnapshotClassLister
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snapshotClassSynced cache.InformerSynced
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storageClassCapabilityLister crdlisters.StorageClassCapabilityLister
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storageClassCapabilityClient capabilityclient.StorageClassCapabilityInterface
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storageCapabilityLister capabilitylisters.StorageClassCapabilityLister
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storageClassCapabilitySynced cache.InformerSynced
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workQueue workqueue.RateLimitingInterface
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csiAddressGetter csiAddressGetter
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provisionerCapabilityLister capabilitylisters.ProvisionerCapabilityLister
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provisionerCapabilitySynced cache.InformerSynced
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storageClassClient storageclient.StorageClassInterface
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storageClassLister storagelistersv1.StorageClassLister
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storageClassSynced cache.InformerSynced
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snapshotSupported bool
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snapshotClassClient snapshotclient.VolumeSnapshotClassInterface
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snapshotClassLister snapshotlisters.VolumeSnapshotClassLister
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snapshotClassSynced cache.InformerSynced
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csiDriverLister storagelistersv1beta1.CSIDriverLister
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csiDriverSynced cache.InformerSynced
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csiAddressGetter csiAddressGetter
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workQueue workqueue.RateLimitingInterface
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}
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// This controller is responsible to watch StorageClass, SnapshotClass.
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// And then update StorageClassCapability CRD resource object to the newest status.
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func NewController(
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k8sClient kubernetes.Interface,
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storageClassCapabilityClient clientset.Interface,
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storageClassInformer scinformers.StorageClassInformer,
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capabilityClient capabilityclient.StorageClassCapabilityInterface,
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capabilityInformer capabilityinformers.Interface,
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storageClassClient storageclient.StorageClassInterface,
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storageClassInformer storageinformersv1.StorageClassInformer,
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snapshotSupported bool,
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snapshotClassClient snapshotclient.VolumeSnapshotClassInterface,
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snapshotClassInformer snapinformers.VolumeSnapshotClassInformer,
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storageClassCapabilityInformer storageinformers.StorageClassCapabilityInformer,
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csiAddressGetter csiAddressGetter,
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csiDriverInformer storageinformersv1beta1.CSIDriverInformer,
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) *StorageCapabilityController {
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utilruntime.Must(crdscheme.AddToScheme(scheme.Scheme))
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controller := &StorageCapabilityController{
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k8sClient: k8sClient,
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storageClassCapabilityClient: storageClassCapabilityClient,
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storageClassCapabilityClient: capabilityClient,
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storageCapabilityLister: capabilityInformer.StorageClassCapabilities().Lister(),
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storageClassCapabilitySynced: capabilityInformer.StorageClassCapabilities().Informer().HasSynced,
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provisionerCapabilityLister: capabilityInformer.ProvisionerCapabilities().Lister(),
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provisionerCapabilitySynced: capabilityInformer.ProvisionerCapabilities().Informer().HasSynced,
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storageClassClient: storageClassClient,
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storageClassLister: storageClassInformer.Lister(),
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storageClassSynced: storageClassInformer.Informer().HasSynced,
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snapshotSupported: snapshotSupported,
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snapshotClassClient: snapshotClassClient,
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snapshotClassLister: snapshotClassInformer.Lister(),
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snapshotClassSynced: snapshotClassInformer.Informer().HasSynced,
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storageClassCapabilityLister: storageClassCapabilityInformer.Lister(),
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storageClassCapabilitySynced: storageClassCapabilityInformer.Informer().HasSynced,
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csiDriverLister: csiDriverInformer.Lister(),
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csiDriverSynced: csiDriverInformer.Informer().HasSynced,
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csiAddressGetter: csiAddress,
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workQueue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "StorageClasses"),
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csiAddressGetter: csiAddressGetter,
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}
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storageClassInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: controller.enqueueStorageClass,
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UpdateFunc: func(old, new interface{}) {
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newStorageClass := new.(*v1strorage.StorageClass)
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oldStorageClass := old.(*v1strorage.StorageClass)
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newStorageClass := new.(*storagev1.StorageClass)
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oldStorageClass := old.(*storagev1.StorageClass)
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if newStorageClass.ResourceVersion == oldStorageClass.ResourceVersion {
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return
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}
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@@ -103,13 +132,15 @@ func NewController(
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},
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DeleteFunc: controller.enqueueStorageClass,
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})
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snapshotClassInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: controller.enqueueSnapshotClass,
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UpdateFunc: func(old, new interface{}) {
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csiDriverInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: controller.handlerCSIDriver,
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UpdateFunc: func(oldObj, newObj interface{}) {
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return
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},
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DeleteFunc: controller.enqueueSnapshotClass,
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DeleteFunc: controller.handlerCSIDriver,
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})
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return controller
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}
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@@ -123,7 +154,14 @@ func (c *StorageCapabilityController) Run(threadCnt int, stopCh <-chan struct{})
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// Wait for the caches to be synced before starting workers
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klog.Info("Waiting for informer caches to sync")
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if ok := cache.WaitForCacheSync(stopCh, c.storageClassSynced, c.snapshotClassSynced, c.storageClassCapabilitySynced); !ok {
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cacheSyncs := []cache.InformerSynced{
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c.storageClassCapabilitySynced,
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c.provisionerCapabilitySynced,
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c.storageClassSynced,
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c.csiDriverSynced,
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}
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if ok := cache.WaitForCacheSync(stopCh, cacheSyncs...); !ok {
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return fmt.Errorf("failed to wait for caches to sync")
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}
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@@ -136,27 +174,22 @@ func (c *StorageCapabilityController) Run(threadCnt int, stopCh <-chan struct{})
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return nil
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}
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func (c *StorageCapabilityController) enqueueStorageClass(obj interface{}) {
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storageClass := obj.(*v1strorage.StorageClass)
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if !fileExist(c.csiAddressGetter(storageClass.Provisioner)) {
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klog.V(4).Infof("CSI address of storage class: %s, provisioner :%s not exist", storageClass.Name, storageClass.Provisioner)
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func (c *StorageCapabilityController) handlerCSIDriver(obj interface{}) {
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csiDriver := obj.(*storagev1beta1.CSIDriver)
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storageClasses, err := c.storageClassLister.List(labels.Everything())
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if err != nil {
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klog.Error("list StorageClass error when handler csiDriver", err)
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return
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}
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var key string
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var err error
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if key, err = cache.MetaNamespaceKeyFunc(obj); err != nil {
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utilruntime.HandleError(err)
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return
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for _, storageClass := range storageClasses {
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if storageClass.Provisioner == csiDriver.Name {
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klog.Info("enqueue StorageClass when handler csiDriver", storageClass)
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c.enqueueStorageClass(storageClass)
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}
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}
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c.workQueue.Add(key)
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}
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func (c *StorageCapabilityController) enqueueSnapshotClass(obj interface{}) {
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snapshotClass := obj.(*snapapi.VolumeSnapshotClass)
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if !fileExist(c.csiAddressGetter(snapshotClass.Driver)) {
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klog.V(4).Infof("CSI address of snapshot class: %s, driver:%s not exist", snapshotClass.Name, snapshotClass.Driver)
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return
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}
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func (c *StorageCapabilityController) enqueueStorageClass(obj interface{}) {
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var key string
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var err error
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if key, err = cache.MetaNamespaceKeyFunc(obj); err != nil {
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@@ -214,67 +247,191 @@ func (c *StorageCapabilityController) syncHandler(key string) error {
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// Get StorageClass
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storageClass, err := c.storageClassLister.Get(name)
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klog.V(4).Infof("Get storageClass %s: entity %v", name, storageClass)
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if err != nil {
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// StorageClass has been deleted, delete StorageClassCapability and VolumeSnapshotClass
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if errors.IsNotFound(err) {
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_, err = c.storageClassCapabilityLister.Get(name)
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if err != nil {
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if errors.IsNotFound(err) {
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return nil
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if c.snapshotSupported {
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err = c.deleteSnapshotClass(name)
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if err != nil {
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return err
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}
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return err
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}
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return c.storageClassCapabilityClient.StorageV1alpha1().StorageClassCapabilities().Delete(name, &metav1.DeleteOptions{})
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return c.deleteStorageCapability(name)
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}
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return err
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}
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// Get SnapshotClass
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snapshotClassCreated := true
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_, err = c.snapshotClassLister.Get(storageClass.Name)
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// Get capability spec
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capabilitySpec, err := c.getCapabilitySpec(storageClass)
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if err != nil {
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if errors.IsNotFound(err) {
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snapshotClassCreated = false
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} else {
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return err
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}
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return err
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}
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// Get exist StorageClassCapability
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storageClassCapabilityExist, err := c.storageClassCapabilityLister.Get(storageClass.Name)
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if errors.IsNotFound(err) {
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// If the resource doesn't exist, we'll create it
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klog.V(4).Infof("Create StorageClassProvisioner %s", storageClass.GetName())
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storageClassCapabilityCreate := &crdapi.StorageClassCapability{ObjectMeta: metav1.ObjectMeta{Name: storageClass.Name}}
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err = c.addSpec(&storageClassCapabilityCreate.Spec, storageClass, snapshotClassCreated)
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// No capability because csi-plugin not installed
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if capabilitySpec == nil {
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klog.Infof("StorageClass %s has no capability", name)
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err = c.updateStorageClassSnapshotSupported(storageClass, false)
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if err != nil {
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return err
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}
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klog.V(4).Info("Create StorageClassCapability: ", storageClassCapabilityCreate)
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_, err = c.storageClassCapabilityClient.StorageV1alpha1().StorageClassCapabilities().Create(storageClassCapabilityCreate)
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return err
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return c.deleteStorageCapability(name)
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}
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klog.Infof("StorageClass %s has capability %v", name, capabilitySpec)
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// Handle VolumeSnapshotClass with same name of StorageClass
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// annotate "support-snapshot" of StorageClass
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withSnapshotCapability := false
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if c.snapshotSupported && capabilitySpec.Features.Snapshot.Create {
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_, err = c.snapshotClassLister.Get(name)
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if err != nil {
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// If VolumeSnapshotClass not exist, create it
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if errors.IsNotFound(err) {
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volumeSnapshotClassCreate := &snapshotv1beta1.VolumeSnapshotClass{
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ObjectMeta: metav1.ObjectMeta{Name: name},
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Driver: storageClass.Provisioner,
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DeletionPolicy: snapshotv1beta1.VolumeSnapshotContentDelete,
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}
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_, err = c.snapshotClassClient.Create(volumeSnapshotClassCreate)
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if err != nil {
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return err
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}
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}
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}
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withSnapshotCapability = true
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}
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err = c.updateStorageClassSnapshotSupported(storageClass, withSnapshotCapability)
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if err != nil {
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return err
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}
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// If the resource exist, we can update it.
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storageClassCapabilityUpdate := storageClassCapabilityExist.DeepCopy()
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err = c.addSpec(&storageClassCapabilityUpdate.Spec, storageClass, snapshotClassCreated)
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// Handle StorageClassCapability with the same name of StorageClass
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storageClassCapabilityExist, err := c.storageCapabilityLister.Get(storageClass.Name)
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if err != nil {
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if errors.IsNotFound(err) {
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// If StorageClassCapability doesn't exist, create it
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storageClassCapabilityCreate := &capability.StorageClassCapability{ObjectMeta: metav1.ObjectMeta{Name: storageClass.Name}}
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storageClassCapabilityCreate.Spec = *capabilitySpec
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klog.Info("Create StorageClassCapability: ", storageClassCapabilityCreate)
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_, err = c.storageClassCapabilityClient.Create(storageClassCapabilityCreate)
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return err
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}
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return err
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}
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// If StorageClassCapability exist, update it.
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storageClassCapabilityUpdate := storageClassCapabilityExist.DeepCopy()
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storageClassCapabilityUpdate.Spec = *capabilitySpec
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if !reflect.DeepEqual(storageClassCapabilityExist, storageClassCapabilityUpdate) {
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klog.V(4).Info("Update StorageClassCapability: ", storageClassCapabilityUpdate)
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_, err = c.storageClassCapabilityClient.StorageV1alpha1().StorageClassCapabilities().Update(storageClassCapabilityUpdate)
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klog.Info("Update StorageClassCapability: ", storageClassCapabilityUpdate)
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_, err = c.storageClassCapabilityClient.Update(storageClassCapabilityUpdate)
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return err
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}
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return nil
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}
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func (c *StorageCapabilityController) IsValidKubernetesVersion() bool {
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minVer := version.MustParseGeneric(minKubernetesVersion)
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rawVer, err := c.k8sClient.Discovery().ServerVersion()
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func (c *StorageCapabilityController) updateStorageClassSnapshotSupported(storageClass *storagev1.StorageClass, snapshotSupported bool) error {
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if storageClass.Annotations == nil {
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storageClass.Annotations = make(map[string]string)
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}
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snapshotSupportedAnnotated, err := strconv.ParseBool(storageClass.Annotations[annotationSupportSnapshot])
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// err != nil means annotationSupportSnapshot is not illegal, include empty
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if err != nil || snapshotSupported != snapshotSupportedAnnotated {
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storageClass.Annotations[annotationSupportSnapshot] = strconv.FormatBool(snapshotSupported)
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_, err = c.storageClassClient.Update(storageClass)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (c *StorageCapabilityController) deleteStorageCapability(name string) error {
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_, err := c.storageCapabilityLister.Get(name)
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if err != nil {
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if errors.IsNotFound(err) {
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return nil
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}
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return err
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}
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klog.Infof("Delete StorageClassCapability %s", name)
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return c.storageClassCapabilityClient.Delete(name, &metav1.DeleteOptions{})
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}
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func (c *StorageCapabilityController) deleteSnapshotClass(name string) error {
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if !c.snapshotSupported {
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return nil
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}
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_, err := c.snapshotClassLister.Get(name)
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if err != nil {
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if errors.IsNotFound(err) {
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return nil
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}
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return err
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}
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klog.Infof("Delete SnapshotClass %s", name)
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return c.snapshotClassClient.Delete(name, &metav1.DeleteOptions{})
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}
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func (c *StorageCapabilityController) nonCSICapability(provisioner string) (*capability.StorageClassCapabilitySpec, error) {
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provisionerCapability, err := c.provisionerCapabilityLister.Get(getProvisionerCapabilityName(provisioner))
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if err != nil {
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if errors.IsNotFound(err) {
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return nil, nil
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}
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return nil, err
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}
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capabilitySpec := &capability.StorageClassCapabilitySpec{
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Features: provisionerCapability.Spec.Features,
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}
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return capabilitySpec, nil
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}
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func (c *StorageCapabilityController) getCapabilitySpec(storageClass *storagev1.StorageClass) (*capability.StorageClassCapabilitySpec, error) {
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isCsi, err := c.isCSIStorage(storageClass.Provisioner)
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if err != nil {
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return nil, err
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}
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var capabilitySpec *capability.StorageClassCapabilitySpec
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if isCsi {
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capabilitySpec, err = csiCapability(c.csiAddressGetter(storageClass.Provisioner))
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} else {
|
||||
capabilitySpec, err = c.nonCSICapability(storageClass.Provisioner)
|
||||
}
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if capabilitySpec != nil {
|
||||
capabilitySpec.Provisioner = storageClass.Provisioner
|
||||
if storageClass.AllowVolumeExpansion == nil || !*storageClass.AllowVolumeExpansion {
|
||||
capabilitySpec.Features.Volume.Expand = capability.ExpandModeUnknown
|
||||
}
|
||||
if !c.snapshotSupported {
|
||||
capabilitySpec.Features.Snapshot.Create = false
|
||||
capabilitySpec.Features.Snapshot.List = false
|
||||
}
|
||||
}
|
||||
return capabilitySpec, nil
|
||||
}
|
||||
|
||||
func (c *StorageCapabilityController) isCSIStorage(provisioner string) (bool, error) {
|
||||
_, err := c.csiDriverLister.Get(provisioner)
|
||||
if err != nil {
|
||||
if errors.IsNotFound(err) {
|
||||
return false, nil
|
||||
}
|
||||
return false, err
|
||||
}
|
||||
return true, nil
|
||||
}
|
||||
|
||||
// this is used for test of CSIDriver on windows
|
||||
func (c *StorageCapabilityController) setCSIAddressGetter(getter csiAddressGetter) {
|
||||
c.csiAddressGetter = getter
|
||||
}
|
||||
|
||||
func SnapshotSupported(discoveryInterface discovery.DiscoveryInterface) bool {
|
||||
minVer := version.MustParseGeneric(minSnapshotSupportedVersion)
|
||||
rawVer, err := discoveryInterface.ServerVersion()
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
@@ -285,29 +442,10 @@ func (c *StorageCapabilityController) IsValidKubernetesVersion() bool {
|
||||
return ver.AtLeast(minVer)
|
||||
}
|
||||
|
||||
func (c *StorageCapabilityController) addSpec(spec *crdapi.StorageClassCapabilitySpec, storageClass *v1strorage.StorageClass, snapshotClassCreated bool) error {
|
||||
csiCapability, err := csiCapability(c.csiAddressGetter(storageClass.Provisioner))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
spec.Provisioner = storageClass.Provisioner
|
||||
spec.Features.Volume = csiCapability.Features.Volume
|
||||
spec.Features.Topology = csiCapability.Features.Topology
|
||||
if *storageClass.AllowVolumeExpansion {
|
||||
spec.Features.Volume.Expand = csiCapability.Features.Volume.Expand
|
||||
} else {
|
||||
spec.Features.Volume.Expand = crdapi.ExpandModeUnknown
|
||||
}
|
||||
if snapshotClassCreated {
|
||||
spec.Features.Snapshot = csiCapability.Features.Snapshot
|
||||
} else {
|
||||
spec.Features.Snapshot.Create = false
|
||||
spec.Features.Snapshot.List = false
|
||||
}
|
||||
return nil
|
||||
func csiAddress(provisioner string) string {
|
||||
return fmt.Sprintf(csiAddressFormat, provisioner)
|
||||
}
|
||||
|
||||
func fileExist(name string) bool {
|
||||
_, err := os.Stat(name)
|
||||
return !os.IsNotExist(err)
|
||||
func getProvisionerCapabilityName(provisioner string) string {
|
||||
return strings.NewReplacer(".", "-", "/", "-").Replace(provisioner)
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user