Merge pull request #25163 from derekwaynecarr/pod-eviction-grace-period-flag

Pod eviction grace period flag

cmd/kubelet/app/options/options.go

@@ -257,4 +257,5 @@ func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
 	fs.StringVar(&s.EvictionSoft, "eviction-soft", s.EvictionSoft, "A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction.")
 	fs.StringVar(&s.EvictionSoftGracePeriod, "eviction-soft-grace-period", s.EvictionSoftGracePeriod, "A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction.")
 	fs.DurationVar(&s.EvictionPressureTransitionPeriod.Duration, "eviction-pressure-transition-period", s.EvictionPressureTransitionPeriod.Duration, "Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.")
+	fs.Int32Var(&s.EvictionMaxPodGracePeriod, "eviction-max-pod-grace-period", s.EvictionMaxPodGracePeriod, "Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met.  If negative, defer to pod specified value.")
 }

docs/admin/kubelet.md

@@ -88,6 +88,7 @@ kubelet
       --event-burst=10: Maximum size of a bursty event records, temporarily allows event records to burst to this number, while still not exceeding event-qps. Only used if --event-qps > 0
       --event-qps=5: If > 0, limit event creations per second to this value. If 0, unlimited.
       --eviction-hard="": A set of eviction thresholds (e.g. memory.available<1Gi) that if met would trigger a pod eviction.
+      --eviction-max-pod-grace-period=0: Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met.  If negative, defer to pod specified value.
       --eviction-pressure-transition-period=5m0s: Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.
       --eviction-soft="": A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction.
       --eviction-soft-grace-period="": A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction.
@@ -158,7 +159,7 @@ kubelet
       --volume-stats-agg-period=1m0s: Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes.  To disable volume calculations, set to 0.  Default: '1m'
 ```
 
-###### Auto generated by spf13/cobra on 10-May-2016
+###### Auto generated by spf13/cobra on 13-May-2016
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

hack/verify-flags/known-flags.txt

@@ -122,6 +122,7 @@ eviction-hard
 eviction-soft
 eviction-soft-grace-period
 eviction-pressure-transition-period
+eviction-max-pod-grace-period
 executor-bindall
 executor-logv
 executor-path

pkg/apis/componentconfig/deep_copy_generated.go

@@ -311,6 +311,7 @@ func DeepCopy_componentconfig_KubeletConfiguration(in KubeletConfiguration, out
 	if err := unversioned.DeepCopy_unversioned_Duration(in.EvictionPressureTransitionPeriod, &out.EvictionPressureTransitionPeriod, c); err != nil {
 		return err
 	}
+	out.EvictionMaxPodGracePeriod = in.EvictionMaxPodGracePeriod
 	return nil
 }
 

pkg/apis/componentconfig/types.go

@@ -351,6 +351,8 @@ type KubeletConfiguration struct {
 	EvictionSoftGracePeriod string `json:"evictionSoftGracePeriod,omitempty"`
 	// Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition.
 	EvictionPressureTransitionPeriod unversioned.Duration `json:"evictionPressureTransitionPeriod,omitempty"`
+	// Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met.
+	EvictionMaxPodGracePeriod int32 `json:"evictionMaxPodGracePeriod,omitempty"`
 }
 
 type KubeSchedulerConfiguration struct {