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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,231 @@ | ||
| package scheduler | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/informers" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| "k8s.io/kubernetes/pkg/controller" | ||
| "testing" | ||
|
|
||
| "github.com/rancher/longhorn-manager/datastore" | ||
| longhorn "github.com/rancher/longhorn-manager/k8s/pkg/apis/longhorn/v1alpha1" | ||
| lhfake "github.com/rancher/longhorn-manager/k8s/pkg/client/clientset/versioned/fake" | ||
| lhinformerfactory "github.com/rancher/longhorn-manager/k8s/pkg/client/informers/externalversions" | ||
| "github.com/rancher/longhorn-manager/types" | ||
| "github.com/rancher/longhorn-manager/util" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| const ( | ||
| TestNamespace = "default" | ||
| TestIP1 = "1.2.3.4" | ||
| TestIP2 = "5.6.7.8" | ||
| TestIP3 = "9.10.11.12" | ||
| TestNode1 = "test-node-name-1" | ||
| TestNode2 = "test-node-name-2" | ||
| TestNode3 = "test-node-name-3" | ||
|
|
||
| TestOwnerID1 = TestNode1 | ||
| TestEngineImage = "longhorn-engine:latest" | ||
|
|
||
| TestVolumeName = "test-volume" | ||
| TestVolumeSize = 1073741824 | ||
| TestVolumeStaleTimeout = 60 | ||
|
|
||
| TestDefaultDataPath = "/var/lib/rancher/longhorn" | ||
|
|
||
| TestDaemon1 = "longhorn-manager-1" | ||
| TestDaemon2 = "longhorn-manager-2" | ||
| TestDaemon3 = "longhorn-manager-3" | ||
| ) | ||
|
|
||
| func newReplicaScheduler(lhInformerFactory lhinformerfactory.SharedInformerFactory, kubeInformerFactory informers.SharedInformerFactory, | ||
| lhClient *lhfake.Clientset, kubeClient *fake.Clientset) *ReplicaScheduler { | ||
| fmt.Printf("testing NewReplicaScheduler\n") | ||
|
|
||
| volumeInformer := lhInformerFactory.Longhorn().V1alpha1().Volumes() | ||
| engineInformer := lhInformerFactory.Longhorn().V1alpha1().Engines() | ||
| replicaInformer := lhInformerFactory.Longhorn().V1alpha1().Replicas() | ||
| engineImageInformer := lhInformerFactory.Longhorn().V1alpha1().EngineImages() | ||
| nodeInformer := lhInformerFactory.Longhorn().V1alpha1().Nodes() | ||
|
|
||
| podInformer := kubeInformerFactory.Core().V1().Pods() | ||
| cronJobInformer := kubeInformerFactory.Batch().V1beta1().CronJobs() | ||
| daemonSetInformer := kubeInformerFactory.Apps().V1beta2().DaemonSets() | ||
|
|
||
| ds := datastore.NewDataStore(volumeInformer, engineInformer, replicaInformer, engineImageInformer, lhClient, | ||
| podInformer, cronJobInformer, daemonSetInformer, kubeClient, TestNamespace, nodeInformer) | ||
|
|
||
| return NewReplicaScheduler(ds) | ||
| } | ||
|
|
||
| func newDaemonPod(phase v1.PodPhase, name, namespace, nodeID, podIP string) *v1.Pod { | ||
| return &v1.Pod{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name, | ||
| Namespace: namespace, | ||
| Labels: map[string]string{ | ||
| "app": "longhorn-manager", | ||
| }, | ||
| }, | ||
| Spec: v1.PodSpec{ | ||
| NodeName: nodeID, | ||
| }, | ||
| Status: v1.PodStatus{ | ||
| Phase: phase, | ||
| PodIP: podIP, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func newNode(name, namespace string, allowScheduling bool, nodeState types.NodeState) *longhorn.Node { | ||
| return &longhorn.Node{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name, | ||
| Namespace: namespace, | ||
| }, | ||
| Spec: types.NodeSpec{ | ||
| AllowScheduling: allowScheduling, | ||
| Disks: map[string]types.DiskSpec{ | ||
| TestDefaultDataPath: { | ||
| Path: TestDefaultDataPath, | ||
| }, | ||
| }, | ||
| }, | ||
| Status: types.NodeStatus{ | ||
| State: nodeState, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func newVolume(name string, replicaCount int) *longhorn.Volume { | ||
| return &longhorn.Volume{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: name, | ||
| Finalizers: []string{ | ||
| longhorn.SchemeGroupVersion.Group, | ||
| }, | ||
| }, | ||
| Spec: types.VolumeSpec{ | ||
| NumberOfReplicas: replicaCount, | ||
| Size: TestVolumeSize, | ||
| OwnerID: TestOwnerID1, | ||
| StaleReplicaTimeout: TestVolumeStaleTimeout, | ||
| EngineImage: TestEngineImage, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func newReplicaForVolume(v *longhorn.Volume) *longhorn.Replica { | ||
| return &longhorn.Replica{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: v.Name + "-r-" + util.RandomID(), | ||
| Labels: map[string]string{ | ||
| "longhornvolume": v.Name, | ||
| }, | ||
| }, | ||
| Spec: types.ReplicaSpec{ | ||
| InstanceSpec: types.InstanceSpec{ | ||
| OwnerID: v.Spec.OwnerID, | ||
| VolumeName: v.Name, | ||
| VolumeSize: v.Spec.Size, | ||
| EngineImage: TestEngineImage, | ||
| DesireState: types.InstanceStateStopped, | ||
| }, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func TestReplicaScheduler_ScheduleReplica(t *testing.T) { | ||
| assert := require.New(t) | ||
|
|
||
| kubeClient := fake.NewSimpleClientset() | ||
| kubeInformerFactory := informers.NewSharedInformerFactory(kubeClient, controller.NoResyncPeriodFunc()) | ||
|
|
||
| lhClient := lhfake.NewSimpleClientset() | ||
| lhInformerFactory := lhinformerfactory.NewSharedInformerFactory(lhClient, controller.NoResyncPeriodFunc()) | ||
|
|
||
| vIndexer := lhInformerFactory.Longhorn().V1alpha1().Volumes().Informer().GetIndexer() | ||
| rIndexer := lhInformerFactory.Longhorn().V1alpha1().Replicas().Informer().GetIndexer() | ||
| nIndexer := lhInformerFactory.Longhorn().V1alpha1().Nodes().Informer().GetIndexer() | ||
| pIndexer := kubeInformerFactory.Core().V1().Pods().Informer().GetIndexer() | ||
|
|
||
| s := newReplicaScheduler(lhInformerFactory, kubeInformerFactory, lhClient, kubeClient) | ||
|
|
||
| // create daemon pod | ||
| daemon1 := newDaemonPod(v1.PodRunning, TestDaemon1, TestNamespace, TestNode1, TestIP1) | ||
| p, err := kubeClient.CoreV1().Pods(TestNamespace).Create(daemon1) | ||
| assert.Nil(err) | ||
| pIndexer.Add(p) | ||
| daemon2 := newDaemonPod(v1.PodRunning, TestDaemon2, TestNamespace, TestNode2, TestIP2) | ||
| p, err = kubeClient.CoreV1().Pods(TestNamespace).Create(daemon2) | ||
| assert.Nil(err) | ||
| pIndexer.Add(p) | ||
| daemon3 := newDaemonPod(v1.PodRunning, TestDaemon3, TestNamespace, TestNode3, TestIP3) | ||
| p, err = kubeClient.CoreV1().Pods(TestNamespace).Create(daemon3) | ||
| assert.Nil(err) | ||
| pIndexer.Add(p) | ||
|
|
||
| // create test node | ||
| node1 := newNode(TestNode1, TestNamespace, true, types.NodeStateUp) | ||
| n1, err := lhClient.Longhorn().Nodes(TestNamespace).Create(node1) | ||
| assert.Nil(err) | ||
| assert.NotNil(n1) | ||
| nIndexer.Add(n1) | ||
|
|
||
| // node2 is not available for scheduler | ||
| node2 := newNode(TestNode2, TestNamespace, false, types.NodeStateUp) | ||
| n2, err := lhClient.Longhorn().Nodes(TestNamespace).Create(node2) | ||
| assert.Nil(err) | ||
| assert.NotNil(n2) | ||
| nIndexer.Add(n2) | ||
|
|
||
| // node3 is not available for scheduler | ||
| node3 := newNode(TestNode3, TestNamespace, true, types.NodeStateDown) | ||
| n3, err := lhClient.Longhorn().Nodes(TestNamespace).Create(node3) | ||
| assert.Nil(err) | ||
| assert.NotNil(n3) | ||
| nIndexer.Add(n3) | ||
|
|
||
| // create volume and replica for scheduler | ||
| v := newVolume(TestVolumeName, 2) | ||
| volume, err := lhClient.LonghornV1alpha1().Volumes(TestNamespace).Create(v) | ||
| assert.Nil(err) | ||
| assert.NotNil(volume) | ||
| vIndexer.Add(volume) | ||
|
|
||
| replica1 := newReplicaForVolume(volume) | ||
| r1, err := lhClient.LonghornV1alpha1().Replicas(TestNamespace).Create(replica1) | ||
| assert.Nil(err) | ||
| assert.NotNil(r1) | ||
| rIndexer.Add(r1) | ||
|
|
||
| replica2 := newReplicaForVolume(volume) | ||
| r2, err := lhClient.LonghornV1alpha1().Replicas(TestNamespace).Create(replica2) | ||
| assert.Nil(err) | ||
| assert.NotNil(r2) | ||
| rIndexer.Add(r2) | ||
|
|
||
| // validate scheduler | ||
| r, err := s.ScheduleReplica(r1) | ||
| assert.Nil(err) | ||
| assert.NotNil(r) | ||
| // assert could not scheduler to node2 and node3 | ||
| assert.NotEqual(node2.Name, r.Spec.NodeID) | ||
| assert.NotEqual(node3.Name, r.Spec.NodeID) | ||
| assert.Equal(node1.Name, r.Spec.NodeID) | ||
|
|
||
| assert.Contains(r.Spec.DataPath, TestDefaultDataPath) | ||
|
|
||
| r, err = s.ScheduleReplica(r2) | ||
| assert.Nil(err) | ||
| assert.NotNil(r) | ||
| // assert could not scheduler to node2 and node3 | ||
| assert.NotEqual(node2.Name, r.Spec.NodeID) | ||
| assert.NotEqual(node3.Name, r.Spec.NodeID) | ||
| assert.Equal(node1.Name, r.Spec.NodeID) | ||
|
|
||
| assert.Contains(r.Spec.DataPath, TestDefaultDataPath) | ||
| } |