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Update godeps

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This commit is contained in:
Prashanth Balasubramanian 2016-06-21 11:58:43 -07:00
parent 423433bc5f
commit 701c5a0e30
482 changed files with 86915 additions and 19741 deletions
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75
vendor/k8s.io/kubernetes/pkg/kubelet/qos/memory_policy.go generated vendored
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@ -1,75 +0,0 @@
/*
Copyright 2015 The Kubernetes Authors All rights reserved.
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 qos
import (
"k8s.io/kubernetes/pkg/api"
)
const (
PodInfraOOMAdj int = -999
KubeletOOMScoreAdj int = -999
KubeProxyOOMScoreAdj int = -999
)
// isMemoryBestEffort returns true if the container's memory requirements are best-effort.
func isMemoryBestEffort(container *api.Container) bool {
// A container is memory best-effort if its memory request is unspecified or 0.
// If a request is specified, then the user expects some kind of resource guarantee.
return container.Resources.Requests.Memory().Value() == 0
}
// isMemoryGuaranteed returns true if the container's memory requirements are Guaranteed.
func isMemoryGuaranteed(container *api.Container) bool {
// A container is memory guaranteed if its memory request == memory limit.
// If memory request == memory limit, the user is very confident of resource consumption.
memoryRequest := container.Resources.Requests.Memory()
memoryLimit := container.Resources.Limits.Memory()
return (*memoryRequest).Cmp(*memoryLimit) == 0 && memoryRequest.Value() != 0
}
// GetContainerOOMAdjust returns the amount by which the OOM score of all processes in the
// container should be adjusted. The OOM score of a process is the percentage of memory it consumes
// multiplied by 10 (barring exceptional cases) + a configurable quantity which is between -1000
// and 1000. Containers with higher OOM scores are killed if the system runs out of memory.
// See https://lwn.net/Articles/391222/ for more information.
func GetContainerOOMScoreAdjust(container *api.Container, memoryCapacity int64) int {
if isMemoryGuaranteed(container) {
// Memory guaranteed containers should be the last to get killed.
return -999
} else if isMemoryBestEffort(container) {
// Memory best-effort containers should be the first to be killed.
return 1000
} else {
// Burstable containers are a middle tier, between Guaranteed and Best-Effort. Ideally,
// we want to protect Burstable containers that consume less memory than requested.
// The formula below is a heuristic. A container requesting for 10% of a system's
// memory will have an oom score adjust of 900. If a process in container Y
// uses over 10% of memory, its OOM score will be 1000. The idea is that containers
// which use more than their request will have an OOM score of 1000 and will be prime
// targets for OOM kills.
// Note that this is a heuristic, it won't work if a container has many small processes.
memoryRequest := container.Resources.Requests.Memory().Value()
oomScoreAdjust := 1000 - (1000*memoryRequest)/memoryCapacity
// A memory guaranteed container using 100% of memory can have an OOM score of 1. Ensure
// that memory burstable containers have a higher OOM score.
if oomScoreAdjust < 2 {
return 2
}
return int(oomScoreAdjust)
}
}

67
vendor/k8s.io/kubernetes/pkg/kubelet/qos/policy.go generated vendored Normal file
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@ -0,0 +1,67 @@
/*
Copyright 2015 The Kubernetes Authors All rights reserved.
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 qos
import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/kubelet/qos/util"
)
const (
PodInfraOOMAdj int = -999
KubeletOOMScoreAdj int = -999
KubeProxyOOMScoreAdj int = -999
guaranteedOOMScoreAdj int = -998
besteffortOOMScoreAdj int = 1000
)
// GetContainerOOMAdjust returns the amount by which the OOM score of all processes in the
// container should be adjusted.
// The OOM score of a process is the percentage of memory it consumes
// multiplied by 10 (barring exceptional cases) + a configurable quantity which is between -1000
// and 1000. Containers with higher OOM scores are killed if the system runs out of memory.
// See https://lwn.net/Articles/391222/ for more information.
func GetContainerOOMScoreAdjust(pod *api.Pod, container *api.Container, memoryCapacity int64) int {
switch util.GetPodQos(pod) {
case util.Guaranteed:
// Guaranteed containers should be the last to get killed.
return guaranteedOOMScoreAdj
case util.BestEffort:
return besteffortOOMScoreAdj
}
// Burstable containers are a middle tier, between Guaranteed and Best-Effort. Ideally,
// we want to protect Burstable containers that consume less memory than requested.
// The formula below is a heuristic. A container requesting for 10% of a system's
// memory will have an OOM score adjust of 900. If a process in container Y
// uses over 10% of memory, its OOM score will be 1000. The idea is that containers
// which use more than their request will have an OOM score of 1000 and will be prime
// targets for OOM kills.
// Note that this is a heuristic, it won't work if a container has many small processes.
memoryRequest := container.Resources.Requests.Memory().Value()
oomScoreAdjust := 1000 - (1000*memoryRequest)/memoryCapacity
// A guaranteed pod using 100% of memory can have an OOM score of 1. Ensure
// that burstable pods have a higher OOM score adjustment.
if oomScoreAdjust < 2 {
return 2
}
// Give burstable pods a higher chance of survival over besteffort pods.
if int(oomScoreAdjust) == besteffortOOMScoreAdj {
return int(oomScoreAdjust - 1)
}
return int(oomScoreAdjust)
}

68
vendor/k8s.io/kubernetes/pkg/kubelet/qos/util/qos.go generated vendored
View file

@ -18,7 +18,7 @@ package util
import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/util/sets"
"k8s.io/kubernetes/pkg/api/resource"
)
const (
@ -48,27 +48,69 @@ func isResourceBestEffort(container *api.Container, resource api.ResourceName) b
}
// GetPodQos returns the QoS class of a pod.
// The QoS class of a pod is the lowest QoS class for each resource in each container.
// A pod is besteffort if none of its containers have specified any requests or limits.
// A pod is guaranteed only when requests and limits are specified for all the containers and they are equal.
// A pod is burstable if limits and requests do not match across all containers.
func GetPodQos(pod *api.Pod) string {
qosValues := sets.NewString()
requests := api.ResourceList{}
limits := api.ResourceList{}
zeroQuantity := resource.MustParse("0")
isGuaranteed := true
for _, container := range pod.Spec.Containers {
qosPerResource := GetQoS(&container)
for _, qosValue := range qosPerResource {
qosValues.Insert(qosValue)
// process requests
for name, quantity := range container.Resources.Requests {
if quantity.Cmp(zeroQuantity) == 1 {
delta := quantity.Copy()
if _, exists := requests[name]; !exists {
requests[name] = *delta
} else {
delta.Add(requests[name])
requests[name] = *delta
}
}
}
// process limits
for name, quantity := range container.Resources.Limits {
if quantity.Cmp(zeroQuantity) == 1 {
delta := quantity.Copy()
if _, exists := limits[name]; !exists {
limits[name] = *delta
} else {
delta.Add(limits[name])
limits[name] = *delta
}
}
}
if len(container.Resources.Limits) != len(supportedComputeResources) {
isGuaranteed = false
}
}
if qosValues.Has(BestEffort) {
if len(requests) == 0 && len(limits) == 0 {
return BestEffort
}
if qosValues.Has(Burstable) {
return Burstable
// Check is requests match limits for all resources.
if isGuaranteed {
for name, req := range requests {
if lim, exists := limits[name]; !exists || lim.Cmp(req) != 0 {
isGuaranteed = false
break
}
}
}
return Guaranteed
if isGuaranteed &&
len(requests) == len(limits) &&
len(limits) == len(supportedComputeResources) {
return Guaranteed
}
return Burstable
}
// GetQos returns a mapping of resource name to QoS class of a container
func GetQoS(container *api.Container) map[api.ResourceName]string {
resourceToQoS := map[api.ResourceName]string{}
// QoSList is a set of (resource name, QoS class) pairs.
type QoSList map[api.ResourceName]string
// GetQoS returns a mapping of resource name to QoS class of a container
func GetQoS(container *api.Container) QoSList {
resourceToQoS := QoSList{}
for resource := range allResources(container) {
switch {
case isResourceGuaranteed(container, resource):