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Added backoff parameters to external attacher #141

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merged 2 commits into from
Apr 16, 2019
Merged

Added backoff parameters to external attacher #141

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0bb7065
Added backoff parameters to external attacher
barp Apr 16, 2019
4104865
Fixed framework_test.go to pass the new required parameters
barp Apr 16, 2019
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6 changes: 6 additions & 0 deletions cmd/csi-attacher/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@ import (
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/util/workqueue"
csiinformers "k8s.io/csi-api/pkg/client/informers/externalversions"
"k8s.io/klog"

Expand Down Expand Up @@ -61,6 +62,9 @@ var (
showVersion = flag.Bool("version", false, "Show version.")
timeout = flag.Duration("timeout", 15*time.Second, "Timeout for waiting for attaching or detaching the volume.")

retryIntervalStart = flag.Duration("retry-interval-start", time.Second, "Initial retry interval of failed create volume or deletion. It doubles with each failure, up to retry-interval-max.")
retryIntervalMax = flag.Duration("retry-interval-max", 5*time.Minute, "Maximum retry interval of failed create volume or deletion.")

enableLeaderElection = flag.Bool("leader-election", false, "Enable leader election.")
leaderElectionType = flag.String("leader-election-type", "configmap", "the type of leader election, options are 'configmaps' (default) or 'leases' (recommended). The 'configmaps' option is deprecated in favor of 'leases'.")
leaderElectionNamespace = flag.String("leader-election-namespace", "", "Namespace where the leader election resource lives. Defaults to the pod namespace if not set.")
Expand Down Expand Up @@ -173,6 +177,8 @@ func main() {
handler,
factory.Storage().V1beta1().VolumeAttachments(),
factory.Core().V1().PersistentVolumes(),
workqueue.NewItemExponentialFailureRateLimiter(*retryIntervalStart, *retryIntervalMax),
workqueue.NewItemExponentialFailureRateLimiter(*retryIntervalStart, *retryIntervalMax),
)

run := func(ctx context.Context) {
Expand Down
8 changes: 4 additions & 4 deletions pkg/controller/controller.go
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Expand Up @@ -21,7 +21,7 @@ import (

"k8s.io/klog"

"k8s.io/api/core/v1"
v1 "k8s.io/api/core/v1"
storage "k8s.io/api/storage/v1beta1"
"k8s.io/apimachinery/pkg/api/equality"
apierrs "k8s.io/apimachinery/pkg/api/errors"
Expand Down Expand Up @@ -70,7 +70,7 @@ type Handler interface {
}

// NewCSIAttachController returns a new *CSIAttachController
func NewCSIAttachController(client kubernetes.Interface, attacherName string, handler Handler, volumeAttachmentInformer storageinformers.VolumeAttachmentInformer, pvInformer coreinformers.PersistentVolumeInformer) *CSIAttachController {
func NewCSIAttachController(client kubernetes.Interface, attacherName string, handler Handler, volumeAttachmentInformer storageinformers.VolumeAttachmentInformer, pvInformer coreinformers.PersistentVolumeInformer, vaRateLimiter, paRateLimiter workqueue.RateLimiter) *CSIAttachController {
broadcaster := record.NewBroadcaster()
broadcaster.StartRecordingToSink(&corev1.EventSinkImpl{Interface: client.CoreV1().Events(v1.NamespaceAll)})
var eventRecorder record.EventRecorder
Expand All @@ -81,8 +81,8 @@ func NewCSIAttachController(client kubernetes.Interface, attacherName string, ha
attacherName: attacherName,
handler: handler,
eventRecorder: eventRecorder,
vaQueue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "csi-attacher-va"),
pvQueue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "csi-attacher-pv"),
vaQueue: workqueue.NewNamedRateLimitingQueue(vaRateLimiter, "csi-attacher-va"),
pvQueue: workqueue.NewNamedRateLimitingQueue(paRateLimiter, "csi-attacher-pv"),
}

volumeAttachmentInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
Expand Down
5 changes: 3 additions & 2 deletions pkg/controller/framework_test.go
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Expand Up @@ -29,14 +29,15 @@ import (
"github.com/kubernetes-csi/external-attacher/pkg/attacher"
"k8s.io/klog"

"k8s.io/api/core/v1"
v1 "k8s.io/api/core/v1"
storage "k8s.io/api/storage/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/fake"
core "k8s.io/client-go/testing"
"k8s.io/client-go/util/workqueue"
)

// This is an unit test framework. It is heavily inspired by serviceaccount
Expand Down Expand Up @@ -175,7 +176,7 @@ func runTests(t *testing.T, handlerFactory handlerFactory, tests []testCase) {
// Construct controller
csiConnection := &fakeCSIConnection{t: t, calls: test.expectedCSICalls}
handler := handlerFactory(client, informers, csiConnection)
ctrl := NewCSIAttachController(client, testAttacherName, handler, vaInformer, pvInformer)
ctrl := NewCSIAttachController(client, testAttacherName, handler, vaInformer, pvInformer, workqueue.DefaultControllerRateLimiter(), workqueue.DefaultControllerRateLimiter())

// Start the test by enqueueing the right event
if test.addedVA != nil {
Expand Down