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statefulsets: MinReadySeconds implementation

Browse Source 
https://github.com/kubernetes/kubernetes/pull/100842
introduced featuregate. This PR implements the logic
behind it.
This commit is contained in:
ravisantoshgudimetla
2021-04-19 16:37:00 -04:00
parent bc8acbc43e
commit ceb1dbd2f1
6 changed files with 364 additions and 49 deletions
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29
pkg/controller/statefulset/stateful_set_status_updater_test.go
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@@ -20,15 +20,16 @@ import (
"errors"
"testing"
apps "k8s.io/api/apps/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
core "k8s.io/client-go/testing"
"k8s.io/client-go/tools/cache"
apps "k8s.io/api/apps/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/kubernetes/fake"
appslisters "k8s.io/client-go/listers/apps/v1"
core "k8s.io/client-go/testing"
"k8s.io/client-go/tools/cache"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/kubernetes/pkg/features"
)
func TestStatefulSetUpdaterUpdatesSetStatus(t *testing.T) {
@@ -124,3 +125,21 @@ func TestStatefulSetStatusUpdaterUpdateReplicasConflictFailure(t *testing.T) {
t.Error("UpdateStatefulSetStatus failed to return an error on get failure")
}
}
func TestStatefulSetStatusUpdaterGetAvailableReplicas(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.StatefulSetMinReadySeconds, true)()
set := newStatefulSet(3)
status := apps.StatefulSetStatus{ObservedGeneration: 1, Replicas: 2, AvailableReplicas: 3}
fakeClient := &fake.Clientset{}
updater := NewRealStatefulSetStatusUpdater(fakeClient, nil)
fakeClient.AddReactor("update", "statefulsets", func(action core.Action) (bool, runtime.Object, error) {
update := action.(core.UpdateAction)
return true, update.GetObject(), nil
})
if err := updater.UpdateStatefulSetStatus(set, &status); err != nil {
t.Errorf("Error returned on successful status update: %s", err)
}
if set.Status.AvailableReplicas != 3 {
t.Errorf("UpdateStatefulSetStatus mutated the sets replicas %d", set.Status.AvailableReplicas)
}
}