Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/pkg/util/replicaset/replicaset.go

@@ -0,0 +1,110 @@
+/*
+Copyright 2016 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 replicaset
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/api/errors"
+	"k8s.io/kubernetes/pkg/api/v1"
+	extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
+	metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
+	unversionedextensions "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/extensions/v1beta1"
+	"k8s.io/kubernetes/pkg/labels"
+	errorsutil "k8s.io/kubernetes/pkg/util/errors"
+	labelsutil "k8s.io/kubernetes/pkg/util/labels"
+	podutil "k8s.io/kubernetes/pkg/util/pod"
+	"k8s.io/kubernetes/pkg/util/wait"
+)
+
+// TODO: use client library instead when it starts to support update retries
+//       see https://github.com/kubernetes/kubernetes/issues/21479
+type updateRSFunc func(rs *extensions.ReplicaSet) error
+
+// UpdateRSWithRetries updates a RS with given applyUpdate function. Note that RS not found error is ignored.
+// The returned bool value can be used to tell if the RS is actually updated.
+func UpdateRSWithRetries(rsClient unversionedextensions.ReplicaSetInterface, rs *extensions.ReplicaSet, applyUpdate updateRSFunc) (*extensions.ReplicaSet, bool, error) {
+	var err error
+	var rsUpdated bool
+	oldRs := rs
+	if err = wait.Poll(10*time.Millisecond, 1*time.Minute, func() (bool, error) {
+		rs, err = rsClient.Get(oldRs.Name)
+		if err != nil {
+			return false, err
+		}
+		// Apply the update, then attempt to push it to the apiserver.
+		if err = applyUpdate(rs); err != nil {
+			return false, err
+		}
+		if rs, err = rsClient.Update(rs); err == nil {
+			// Update successful.
+			return true, nil
+		}
+		// TODO: don't retry on perm-failed errors and handle them gracefully
+		// Update could have failed due to conflict error. Try again.
+		return false, nil
+	}); err == nil {
+		// When there's no error, we've updated this RS.
+		rsUpdated = true
+	}
+
+	// Handle returned error from wait poll
+	if err == wait.ErrWaitTimeout {
+		err = fmt.Errorf("timed out trying to update RS: %#v", oldRs)
+	}
+	// Ignore the RS not found error, but the RS isn't updated.
+	if errors.IsNotFound(err) {
+		glog.V(4).Infof("%s %s/%s is not found, skip updating it.", oldRs.Kind, oldRs.Namespace, oldRs.Name)
+		err = nil
+	}
+	// Ignore the precondition violated error, but the RS isn't updated.
+	if err == errorsutil.ErrPreconditionViolated {
+		glog.V(4).Infof("%s %s/%s precondition doesn't hold, skip updating it.", oldRs.Kind, oldRs.Namespace, oldRs.Name)
+		err = nil
+	}
+
+	// If the error is non-nil the returned RS cannot be trusted; if rsUpdated is false, the contoller isn't updated;
+	// if the error is nil and rsUpdated is true, the returned RS contains the applied update.
+	return rs, rsUpdated, err
+}
+
+// GetPodTemplateSpecHash returns the pod template hash of a ReplicaSet's pod template space
+func GetPodTemplateSpecHash(rs *extensions.ReplicaSet) string {
+	meta := rs.Spec.Template.ObjectMeta
+	meta.Labels = labelsutil.CloneAndRemoveLabel(meta.Labels, extensions.DefaultDeploymentUniqueLabelKey)
+	return fmt.Sprintf("%d", podutil.GetPodTemplateSpecHash(v1.PodTemplateSpec{
+		ObjectMeta: meta,
+		Spec:       rs.Spec.Template.Spec,
+	}))
+}
+
+// MatchingPodsFunc returns a filter function for pods with matching labels
+func MatchingPodsFunc(rs *extensions.ReplicaSet) (func(v1.Pod) bool, error) {
+	if rs == nil {
+		return nil, nil
+	}
+	selector, err := metav1.LabelSelectorAsSelector(rs.Spec.Selector)
+	if err != nil {
+		return nil, fmt.Errorf("invalid label selector: %v", err)
+	}
+	return func(pod v1.Pod) bool {
+		podLabelsSelector := labels.Set(pod.ObjectMeta.Labels)
+		return selector.Matches(podLabelsSelector)
+	}, nil
+}