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May 20, 2025
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Add default-scheduler tests #2795

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70 changes: 70 additions & 0 deletions test/e2e/syncer/pods/pods.go
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ import (
"github.com/loft-sh/vcluster/pkg/util/translate"
"github.com/loft-sh/vcluster/test/framework"
"github.com/onsi/ginkgo/v2"
"github.com/onsi/gomega"
corev1 "k8s.io/api/core/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
Expand Down Expand Up @@ -118,6 +119,75 @@ var _ = ginkgo.Describe("Pods are running in the host cluster", func() {
}
})

ginkgo.It("Test pod without explicitly set scheduler is scheduled by the default-scheduler", func(ctx context.Context) {
const (
podName = "implicit-default-scheduler-test"
defaultSchedulerName = "default-scheduler"
)
_, err := f.VClusterClient.CoreV1().Pods(ns).Create(f.Context, &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: podName},
Spec: corev1.PodSpec{
Containers: []corev1.Container{
{
Name: testingContainerName,
Image: testingContainerImage,
ImagePullPolicy: corev1.PullIfNotPresent,
SecurityContext: f.GetDefaultSecurityContext(),
},
},
},
}, metav1.CreateOptions{})
framework.ExpectNoError(err)

err = f.WaitForPodRunning(podName, ns)
framework.ExpectNoError(err, "A pod created in the vcluster is expected to be in the Running phase eventually.")

eventsListOptions := metav1.ListOptions{
FieldSelector: "reason==Scheduled,involvedObject.name==" + podName,
}
scheduledEvents, err := f.VClusterClient.CoreV1().Events(ns).List(ctx, eventsListOptions)
framework.ExpectNoError(err)
gomega.Expect(scheduledEvents.Items).To(gomega.HaveLen(1))

// Assert that the default scheduler has scheduled the pod
gomega.Expect(scheduledEvents.Items[0].ReportingController).To(gomega.Equal(defaultSchedulerName))
})

ginkgo.It("Test pod with explicitly set default-scheduler is scheduled by the default-scheduler", func(ctx context.Context) {
const (
podName = "explicit-default-scheduler-test"
defaultSchedulerName = "default-scheduler"
)
_, err := f.VClusterClient.CoreV1().Pods(ns).Create(f.Context, &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{Name: podName},
Spec: corev1.PodSpec{
Containers: []corev1.Container{
{
Name: testingContainerName,
Image: testingContainerImage,
ImagePullPolicy: corev1.PullIfNotPresent,
SecurityContext: f.GetDefaultSecurityContext(),
},
},
SchedulerName: defaultSchedulerName,
},
}, metav1.CreateOptions{})
framework.ExpectNoError(err)

err = f.WaitForPodRunning(podName, ns)
framework.ExpectNoError(err, "A pod created in the vcluster is expected to be in the Running phase eventually.")

eventsListOptions := metav1.ListOptions{
FieldSelector: "reason==Scheduled,involvedObject.name==" + podName,
}
scheduledEvents, err := f.VClusterClient.CoreV1().Events(ns).List(ctx, eventsListOptions)
framework.ExpectNoError(err)
gomega.Expect(scheduledEvents.Items).To(gomega.HaveLen(1))

// Assert that the default scheduler has scheduled the pod
gomega.Expect(scheduledEvents.Items[0].ReportingController).To(gomega.Equal(defaultSchedulerName))
})

ginkgo.It("Test pod starts successfully and readiness conditions are synced back to vcluster pod resource", func() {
podName := "test"
_, err := f.VClusterClient.CoreV1().Pods(ns).Create(f.Context, &corev1.Pod{
Expand Down
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