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Merge pull request #68683 from chrisohaver/trackdns

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Add DNS pod resource monitoring option
This commit is contained in:
k8s-ci-robot 2018-09-19 09:47:29 -07:00 committed by GitHub
commit ab02fd6f8a
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8 changed files with 38 additions and 11 deletions
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2
cluster/addons/dns/coredns/coredns.yaml.base
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@ -112,7 +112,7 @@ spec:
imagePullPolicy: IfNotPresent
resources:
limits:
memory: 170Mi
memory: 1000Mi
requests:
cpu: 100m
memory: 70Mi

2
cluster/addons/dns/coredns/coredns.yaml.in
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@ -112,7 +112,7 @@ spec:
imagePullPolicy: IfNotPresent
resources:
limits:
memory: 170Mi
memory: 1000Mi
requests:
cpu: 100m
memory: 70Mi

2
cluster/addons/dns/coredns/coredns.yaml.sed
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@ -112,7 +112,7 @@ spec:
imagePullPolicy: IfNotPresent
resources:
limits:
memory: 170Mi
memory: 1000Mi
requests:
cpu: 100m
memory: 70Mi

2
cluster/gce/config-default.sh
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@ -259,7 +259,7 @@ fi
# Optional: Install cluster DNS.
# Set CLUSTER_DNS_CORE_DNS to 'true' to install CoreDNS instead of kube-dns.
CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-false}"
CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-true}"
ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
DNS_SERVER_IP="${KUBE_DNS_SERVER_IP:-10.0.0.10}"
DNS_DOMAIN="${KUBE_DNS_DOMAIN:-cluster.local}"

2
cluster/gce/config-test.sh
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@ -266,7 +266,7 @@ fi
# Optional: Install cluster DNS.
# Set CLUSTER_DNS_CORE_DNS to 'true' to install CoreDNS instead of kube-dns.
CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-false}"
CLUSTER_DNS_CORE_DNS="${CLUSTER_DNS_CORE_DNS:-true}"
ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
DNS_SERVER_IP="10.0.0.10"
DNS_DOMAIN="cluster.local"

13
test/e2e/framework/framework.go
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@ -251,9 +251,18 @@ func (f *Framework) BeforeEach() {
if TestContext.GatherKubeSystemResourceUsageData != "false" && TestContext.GatherKubeSystemResourceUsageData != "none" {
var err error
var nodeMode NodesSet
switch TestContext.GatherKubeSystemResourceUsageData {
case "master":
nodeMode = MasterAndDNSNodes
case "masteranddns":
nodeMode = MasterAndDNSNodes
default:
nodeMode = AllNodes
}
f.gatherer, err = NewResourceUsageGatherer(f.ClientSet, ResourceGathererOptions{
InKubemark: ProviderIs("kubemark"),
MasterOnly: TestContext.GatherKubeSystemResourceUsageData == "master",
InKubemark: ProviderIs("kubemark"),
Nodes: nodeMode,
ResourceDataGatheringPeriod: 60 * time.Second,
ProbeDuration: 15 * time.Second,
PrintVerboseLogs: false,

24
test/e2e/framework/resource_usage_gatherer.go
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@ -202,12 +202,20 @@ type ContainerResourceGatherer struct {
type ResourceGathererOptions struct {
InKubemark bool
MasterOnly bool
Nodes NodesSet
ResourceDataGatheringPeriod time.Duration
ProbeDuration time.Duration
PrintVerboseLogs bool
}
type NodesSet int
const (
AllNodes NodesSet = 0 // All containers on all nodes
MasterNodes NodesSet = 1 // All containers on Master nodes only
MasterAndDNSNodes NodesSet = 2 // All containers on Master nodes and DNS containers on other nodes
)
func NewResourceUsageGatherer(c clientset.Interface, options ResourceGathererOptions, pods *v1.PodList) (*ContainerResourceGatherer, error) {
g := ContainerResourceGatherer{
client: c,
@ -237,13 +245,23 @@ func NewResourceUsageGatherer(c clientset.Interface, options ResourceGathererOpt
return nil, err
}
}
dnsNodes := make(map[string]bool)
for _, pod := range pods.Items {
if (options.Nodes == MasterNodes) && !system.IsMasterNode(pod.Spec.NodeName) {
continue
}
if (options.Nodes == MasterAndDNSNodes) && !system.IsMasterNode(pod.Spec.NodeName) && pod.Labels["k8s-app"] != "kube-dns" {
continue
}
for _, container := range pod.Status.InitContainerStatuses {
g.containerIDs = append(g.containerIDs, container.Name)
}
for _, container := range pod.Status.ContainerStatuses {
g.containerIDs = append(g.containerIDs, container.Name)
}
if options.Nodes == MasterAndDNSNodes {
dnsNodes[pod.Spec.NodeName] = true
}
}
nodeList, err := c.CoreV1().Nodes().List(metav1.ListOptions{})
if err != nil {
@ -252,7 +270,7 @@ func NewResourceUsageGatherer(c clientset.Interface, options ResourceGathererOpt
}
for _, node := range nodeList.Items {
if !options.MasterOnly || system.IsMasterNode(node.Name) {
if options.Nodes == AllNodes || system.IsMasterNode(node.Name) || dnsNodes[node.Name] {
g.workerWg.Add(1)
g.workers = append(g.workers, resourceGatherWorker{
c: c,
@ -266,7 +284,7 @@ func NewResourceUsageGatherer(c clientset.Interface, options ResourceGathererOpt
probeDuration: options.ProbeDuration,
printVerboseLogs: options.PrintVerboseLogs,
})
if options.MasterOnly {
if options.Nodes == MasterNodes {
break
}
}

2
test/e2e/scheduling/nvidia-gpus.go
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@ -137,7 +137,7 @@ func SetupNVIDIAGPUNode(f *framework.Framework, setupResourceGatherer bool) *fra
var rsgather *framework.ContainerResourceGatherer
if setupResourceGatherer {
framework.Logf("Starting ResourceUsageGather for the created DaemonSet pods.")
rsgather, err = framework.NewResourceUsageGatherer(f.ClientSet, framework.ResourceGathererOptions{InKubemark: false, MasterOnly: false, ResourceDataGatheringPeriod: 2 * time.Second, ProbeDuration: 2 * time.Second, PrintVerboseLogs: true}, pods)
rsgather, err = framework.NewResourceUsageGatherer(f.ClientSet, framework.ResourceGathererOptions{InKubemark: false, Nodes: framework.AllNodes, ResourceDataGatheringPeriod: 2 * time.Second, ProbeDuration: 2 * time.Second, PrintVerboseLogs: true}, pods)
framework.ExpectNoError(err, "creating ResourceUsageGather for the daemonset pods")
go rsgather.StartGatheringData()
}