vendor update for E2E framework

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/kubernetes/pkg/kubectl/conditions.go

@@ -0,0 +1,100 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package kubectl
+
+import (
+	"fmt"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/apimachinery/pkg/watch"
+	corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
+)
+
+// ControllerHasDesiredReplicas returns a condition that will be true if and only if
+// the desired replica count for a controller's ReplicaSelector equals the Replicas count.
+func ControllerHasDesiredReplicas(rcClient corev1client.ReplicationControllersGetter, controller *corev1.ReplicationController) wait.ConditionFunc {
+
+	// If we're given a controller where the status lags the spec, it either means that the controller is stale,
+	// or that the rc manager hasn't noticed the update yet. Polling status.Replicas is not safe in the latter case.
+	desiredGeneration := controller.Generation
+
+	return func() (bool, error) {
+		ctrl, err := rcClient.ReplicationControllers(controller.Namespace).Get(controller.Name, metav1.GetOptions{})
+		if err != nil {
+			return false, err
+		}
+		// There's a chance a concurrent update modifies the Spec.Replicas causing this check to pass,
+		// or, after this check has passed, a modification causes the rc manager to create more pods.
+		// This will not be an issue once we've implemented graceful delete for rcs, but till then
+		// concurrent stop operations on the same rc might have unintended side effects.
+		return ctrl.Status.ObservedGeneration >= desiredGeneration && ctrl.Status.Replicas == valOrZero(ctrl.Spec.Replicas), nil
+	}
+}
+
+// ErrPodCompleted is returned by PodRunning or PodContainerRunning to indicate that
+// the pod has already reached completed state.
+var ErrPodCompleted = fmt.Errorf("pod ran to completion")
+
+// PodCompleted returns true if the pod has run to completion, false if the pod has not yet
+// reached running state, or an error in any other case.
+func PodCompleted(event watch.Event) (bool, error) {
+	switch event.Type {
+	case watch.Deleted:
+		return false, errors.NewNotFound(schema.GroupResource{Resource: "pods"}, "")
+	}
+	switch t := event.Object.(type) {
+	case *corev1.Pod:
+		switch t.Status.Phase {
+		case corev1.PodFailed, corev1.PodSucceeded:
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+// PodRunningAndReady returns true if the pod is running and ready, false if the pod has not
+// yet reached those states, returns ErrPodCompleted if the pod has run to completion, or
+// an error in any other case.
+func PodRunningAndReady(event watch.Event) (bool, error) {
+	switch event.Type {
+	case watch.Deleted:
+		return false, errors.NewNotFound(schema.GroupResource{Resource: "pods"}, "")
+	}
+	switch t := event.Object.(type) {
+	case *corev1.Pod:
+		switch t.Status.Phase {
+		case corev1.PodFailed, corev1.PodSucceeded:
+			return false, ErrPodCompleted
+		case corev1.PodRunning:
+			conditions := t.Status.Conditions
+			if conditions == nil {
+				return false, nil
+			}
+			for i := range conditions {
+				if conditions[i].Type == corev1.PodReady &&
+					conditions[i].Status == corev1.ConditionTrue {
+					return true, nil
+				}
+			}
+		}
+	}
+	return false, nil
+}