mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-04 07:49:35 +00:00
84 lines
4.2 KiB
Go
84 lines
4.2 KiB
Go
/*
|
|
Copyright 2018 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 options
|
|
|
|
import (
|
|
"github.com/spf13/pflag"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/kubernetes/pkg/apis/componentconfig"
|
|
)
|
|
|
|
// NodeLifecycleControllerOptions holds the NodeLifecycleController options.
|
|
type NodeLifecycleControllerOptions struct {
|
|
EnableTaintManager bool
|
|
NodeEvictionRate float32
|
|
SecondaryNodeEvictionRate float32
|
|
NodeStartupGracePeriod metav1.Duration
|
|
NodeMonitorGracePeriod metav1.Duration
|
|
PodEvictionTimeout metav1.Duration
|
|
LargeClusterSizeThreshold int32
|
|
UnhealthyZoneThreshold float32
|
|
}
|
|
|
|
// AddFlags adds flags related to NodeLifecycleController for controller manager to the specified FlagSet.
|
|
func (o *NodeLifecycleControllerOptions) AddFlags(fs *pflag.FlagSet) {
|
|
if o == nil {
|
|
return
|
|
}
|
|
|
|
fs.DurationVar(&o.NodeStartupGracePeriod.Duration, "node-startup-grace-period", o.NodeStartupGracePeriod.Duration,
|
|
"Amount of time which we allow starting Node to be unresponsive before marking it unhealthy.")
|
|
fs.DurationVar(&o.NodeMonitorGracePeriod.Duration, "node-monitor-grace-period", o.NodeMonitorGracePeriod.Duration,
|
|
"Amount of time which we allow running Node to be unresponsive before marking it unhealthy. "+
|
|
"Must be N times more than kubelet's nodeStatusUpdateFrequency, "+
|
|
"where N means number of retries allowed for kubelet to post node status.")
|
|
fs.DurationVar(&o.PodEvictionTimeout.Duration, "pod-eviction-timeout", o.PodEvictionTimeout.Duration, "The grace period for deleting pods on failed nodes.")
|
|
fs.Float32Var(&o.NodeEvictionRate, "node-eviction-rate", 0.1, "Number of nodes per second on which pods are deleted in case of node failure when a zone is healthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters.")
|
|
fs.Float32Var(&o.SecondaryNodeEvictionRate, "secondary-node-eviction-rate", 0.01, "Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This value is implicitly overridden to 0 if the cluster size is smaller than --large-cluster-size-threshold.")
|
|
fs.Int32Var(&o.LargeClusterSizeThreshold, "large-cluster-size-threshold", 50, "Number of nodes from which NodeController treats the cluster as large for the eviction logic purposes. --secondary-node-eviction-rate is implicitly overridden to 0 for clusters this size or smaller.")
|
|
fs.Float32Var(&o.UnhealthyZoneThreshold, "unhealthy-zone-threshold", 0.55, "Fraction of Nodes in a zone which needs to be not Ready (minimum 3) for zone to be treated as unhealthy. ")
|
|
fs.BoolVar(&o.EnableTaintManager, "enable-taint-manager", o.EnableTaintManager, "WARNING: Beta feature. If set to true enables NoExecute Taints and will evict all not-tolerating Pod running on Nodes tainted with this kind of Taints.")
|
|
}
|
|
|
|
// ApplyTo fills up NodeLifecycleController config with options.
|
|
func (o *NodeLifecycleControllerOptions) ApplyTo(cfg *componentconfig.NodeLifecycleControllerConfiguration) error {
|
|
if o == nil {
|
|
return nil
|
|
}
|
|
|
|
cfg.EnableTaintManager = o.EnableTaintManager
|
|
cfg.NodeStartupGracePeriod = o.NodeStartupGracePeriod
|
|
cfg.NodeMonitorGracePeriod = o.NodeMonitorGracePeriod
|
|
cfg.PodEvictionTimeout = o.PodEvictionTimeout
|
|
cfg.NodeEvictionRate = o.NodeEvictionRate
|
|
cfg.SecondaryNodeEvictionRate = o.SecondaryNodeEvictionRate
|
|
cfg.LargeClusterSizeThreshold = o.LargeClusterSizeThreshold
|
|
cfg.UnhealthyZoneThreshold = o.UnhealthyZoneThreshold
|
|
|
|
return nil
|
|
}
|
|
|
|
// Validate checks validation of NodeLifecycleControllerOptions.
|
|
func (o *NodeLifecycleControllerOptions) Validate() []error {
|
|
if o == nil {
|
|
return nil
|
|
}
|
|
|
|
errs := []error{}
|
|
return errs
|
|
}
|