vendor files

vendor/k8s.io/kubernetes/pkg/client/leaderelectionconfig/config.go

@@ -0,0 +1,66 @@
+/*
+Copyright 2017 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 leaderelectionconfig
+
+import (
+	"time"
+
+	"github.com/spf13/pflag"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	rl "k8s.io/client-go/tools/leaderelection/resourcelock"
+	"k8s.io/kubernetes/pkg/apis/componentconfig"
+)
+
+const (
+	DefaultLeaseDuration = 15 * time.Second
+	DefaultRenewDeadline = 10 * time.Second
+	DefaultRetryPeriod   = 2 * time.Second
+)
+
+func DefaultLeaderElectionConfiguration() componentconfig.LeaderElectionConfiguration {
+	return componentconfig.LeaderElectionConfiguration{
+		LeaderElect:   false,
+		LeaseDuration: metav1.Duration{Duration: DefaultLeaseDuration},
+		RenewDeadline: metav1.Duration{Duration: DefaultRenewDeadline},
+		RetryPeriod:   metav1.Duration{Duration: DefaultRetryPeriod},
+		ResourceLock:  rl.EndpointsResourceLock,
+	}
+}
+
+// BindFlags binds the common LeaderElectionCLIConfig flags to a flagset
+func BindFlags(l *componentconfig.LeaderElectionConfiguration, fs *pflag.FlagSet) {
+	fs.BoolVar(&l.LeaderElect, "leader-elect", l.LeaderElect, ""+
+		"Start a leader election client and gain leadership before "+
+		"executing the main loop. Enable this when running replicated "+
+		"components for high availability.")
+	fs.DurationVar(&l.LeaseDuration.Duration, "leader-elect-lease-duration", l.LeaseDuration.Duration, ""+
+		"The duration that non-leader candidates will wait after observing a leadership "+
+		"renewal until attempting to acquire leadership of a led but unrenewed leader "+
+		"slot. This is effectively the maximum duration that a leader can be stopped "+
+		"before it is replaced by another candidate. This is only applicable if leader "+
+		"election is enabled.")
+	fs.DurationVar(&l.RenewDeadline.Duration, "leader-elect-renew-deadline", l.RenewDeadline.Duration, ""+
+		"The interval between attempts by the acting master to renew a leadership slot "+
+		"before it stops leading. This must be less than or equal to the lease duration. "+
+		"This is only applicable if leader election is enabled.")
+	fs.DurationVar(&l.RetryPeriod.Duration, "leader-elect-retry-period", l.RetryPeriod.Duration, ""+
+		"The duration the clients should wait between attempting acquisition and renewal "+
+		"of a leadership. This is only applicable if leader election is enabled.")
+	fs.StringVar(&l.ResourceLock, "leader-elect-resource-lock", l.ResourceLock, ""+
+		"The type of resource object that is used for locking during "+
+		"leader election. Supported options are `endpoints` (default) and `configmaps`.")
+}