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Merge pull request #64860 from wgliang/master.kubelet-check-limit

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Automatic merge from submit-queue (batch tested with PRs 65290, 65326, 65289, 65334, 64860). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

checkLimitsForResolvConf for the  pod create and update events instead of checking period

**What this PR does / why we need it**:

- Check for the same at pod create and update events instead of checking continuously for every 30 seconds.
- Increase the logging level to 4 or higher since the event is not catastrophic to cluster health .


**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #64849

**Special notes for your reviewer**:
@ravisantoshgudimetla 

**Release note**:

```release-note
checkLimitsForResolvConf for the  pod create and update events instead of checking period
```
This commit is contained in:
Kubernetes Submit Queue
2018-06-22 04:43:16 -07:00
committed by GitHub
parent 98225e7d20 4f9d2047dd
commit 1ca851baec
4 changed files with 65 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
pkg/kubelet/kubelet_test.go
View File

@@ -50,6 +50,7 @@ import (
"k8s.io/kubernetes/pkg/kubelet/images"
"k8s.io/kubernetes/pkg/kubelet/lifecycle"
"k8s.io/kubernetes/pkg/kubelet/logs"
"k8s.io/kubernetes/pkg/kubelet/network/dns"
"k8s.io/kubernetes/pkg/kubelet/pleg"
kubepod "k8s.io/kubernetes/pkg/kubelet/pod"
podtest "k8s.io/kubernetes/pkg/kubelet/pod/testing"
@@ -472,6 +473,16 @@ func TestHandlePortConflicts(t *testing.T) {
},
}}
recorder := record.NewFakeRecorder(20)
nodeRef := &v1.ObjectReference{
Kind: "Node",
Name: string("testNode"),
UID: types.UID("testNode"),
Namespace: "",
}
testClusterDNSDomain := "TEST"
kl.dnsConfigurer = dns.NewConfigurer(recorder, nodeRef, nil, nil, testClusterDNSDomain, "")
spec := v1.PodSpec{NodeName: string(kl.nodeName), Containers: []v1.Container{{Ports: []v1.ContainerPort{{HostPort: 80}}}}}
pods := []*v1.Pod{
podWithUIDNameNsSpec("123456789", "newpod", "foo", spec),
@@ -509,6 +520,16 @@ func TestHandleHostNameConflicts(t *testing.T) {
},
}}
recorder := record.NewFakeRecorder(20)
nodeRef := &v1.ObjectReference{
Kind: "Node",
Name: string("testNode"),
UID: types.UID("testNode"),
Namespace: "",
}
testClusterDNSDomain := "TEST"
kl.dnsConfigurer = dns.NewConfigurer(recorder, nodeRef, nil, nil, testClusterDNSDomain, "")
// default NodeName in test is 127.0.0.1
pods := []*v1.Pod{
podWithUIDNameNsSpec("123456789", "notfittingpod", "foo", v1.PodSpec{NodeName: "127.0.0.2"}),
@@ -542,6 +563,17 @@ func TestHandleNodeSelector(t *testing.T) {
},
}
kl.nodeInfo = testNodeInfo{nodes: nodes}
recorder := record.NewFakeRecorder(20)
nodeRef := &v1.ObjectReference{
Kind: "Node",
Name: string("testNode"),
UID: types.UID("testNode"),
Namespace: "",
}
testClusterDNSDomain := "TEST"
kl.dnsConfigurer = dns.NewConfigurer(recorder, nodeRef, nil, nil, testClusterDNSDomain, "")
pods := []*v1.Pod{
podWithUIDNameNsSpec("123456789", "podA", "foo", v1.PodSpec{NodeSelector: map[string]string{"key": "A"}}),
podWithUIDNameNsSpec("987654321", "podB", "foo", v1.PodSpec{NodeSelector: map[string]string{"key": "B"}}),
@@ -573,6 +605,16 @@ func TestHandleMemExceeded(t *testing.T) {
}
kl.nodeInfo = testNodeInfo{nodes: nodes}
recorder := record.NewFakeRecorder(20)
nodeRef := &v1.ObjectReference{
Kind: "Node",
Name: string("testNode"),
UID: types.UID("testNode"),
Namespace: "",
}
testClusterDNSDomain := "TEST"
kl.dnsConfigurer = dns.NewConfigurer(recorder, nodeRef, nil, nil, testClusterDNSDomain, "")
spec := v1.PodSpec{NodeName: string(kl.nodeName),
Containers: []v1.Container{{Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
@@ -659,6 +701,16 @@ func TestHandlePluginResources(t *testing.T) {
kl.admitHandlers = lifecycle.PodAdmitHandlers{}
kl.admitHandlers.AddPodAdmitHandler(lifecycle.NewPredicateAdmitHandler(kl.getNodeAnyWay, lifecycle.NewAdmissionFailureHandlerStub(), updatePluginResourcesFunc))
recorder := record.NewFakeRecorder(20)
nodeRef := &v1.ObjectReference{
Kind: "Node",
Name: string("testNode"),
UID: types.UID("testNode"),
Namespace: "",
}
testClusterDNSDomain := "TEST"
kl.dnsConfigurer = dns.NewConfigurer(recorder, nodeRef, nil, nil, testClusterDNSDomain, "")
// pod requiring adjustedResource can be successfully allocated because updatePluginResourcesFunc
// adjusts node.allocatableResource for this resource to a sufficient value.
fittingPodSpec := v1.PodSpec{NodeName: string(kl.nodeName),