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kubelet: remove the pleg health check from healthz/

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If docker hangs, we don't want kubelet to get killed as well.
This commit is contained in:
Yu-Ju Hong 2016-12-01 14:34:46 -08:00
parent 3683e0a691
commit 03106dd1cb
3 changed files with 0 additions and 29 deletions
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5
pkg/kubelet/kubelet.go
View File

@ -2026,11 +2026,6 @@ func (kl *Kubelet) LatestLoopEntryTime() time.Time {
return val.(time.Time)
}
// PLEGHealthCheck returns whether the PLEG is healthy.
func (kl *Kubelet) PLEGHealthCheck() (bool, error) {
return kl.pleg.Healthy()
}
// updateRuntimeUp calls the container runtime status callback, initializing
// the runtime dependent modules when the container runtime first comes up,
// and returns an error if the status check fails. If the status check is OK,

10
pkg/kubelet/server/server.go
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@ -182,7 +182,6 @@ type HostInterface interface {
ImagesFsInfo() (cadvisorapiv2.FsInfo, error)
RootFsInfo() (cadvisorapiv2.FsInfo, error)
ListVolumesForPod(podUID types.UID) (map[string]volume.Volume, bool)
PLEGHealthCheck() (bool, error)
GetExec(podFullName string, podUID types.UID, containerName string, cmd []string, streamOpts remotecommand.Options) (*url.URL, error)
GetAttach(podFullName string, podUID types.UID, containerName string, streamOpts remotecommand.Options) (*url.URL, error)
GetPortForward(podName, podNamespace string, podUID types.UID) (*url.URL, error)
@ -257,7 +256,6 @@ func (s *Server) InstallDefaultHandlers() {
healthz.InstallHandler(s.restfulCont,
healthz.PingHealthz,
healthz.NamedCheck("syncloop", s.syncLoopHealthCheck),
healthz.NamedCheck("pleg", s.plegHealthCheck),
)
var ws *restful.WebService
ws = new(restful.WebService)
@ -417,14 +415,6 @@ func (s *Server) syncLoopHealthCheck(req *http.Request) error {
return nil
}
// Checks if pleg, which lists pods periodically, is healthy.
func (s *Server) plegHealthCheck(req *http.Request) error {
if ok, err := s.host.PLEGHealthCheck(); !ok {
return fmt.Errorf("PLEG took longer than expected: %v", err)
}
return nil
}
// getContainerLogs handles containerLogs request against the Kubelet
func (s *Server) getContainerLogs(request *restful.Request, response *restful.Response) {
podNamespace := request.PathParameter("podNamespace")

14
pkg/kubelet/server/server_test.go
View File

@ -159,8 +159,6 @@ func (fk *fakeKubelet) StreamingConnectionIdleTimeout() time.Duration {
return fk.streamingConnectionIdleTimeoutFunc()
}
func (fk *fakeKubelet) PLEGHealthCheck() (bool, error) { return fk.plegHealth, nil }
// Unused functions
func (_ *fakeKubelet) GetContainerInfoV2(_ string, _ cadvisorapiv2.RequestOptions) (map[string]cadvisorapiv2.ContainerInfo, error) {
return nil, nil
@ -869,18 +867,6 @@ func TestSyncLoopCheck(t *testing.T) {
assertHealthFails(t, fw.testHTTPServer.URL+"/healthz", http.StatusInternalServerError)
}
func TestPLEGHealthCheck(t *testing.T) {
fw := newServerTest()
defer fw.testHTTPServer.Close()
fw.fakeKubelet.hostnameFunc = func() string {
return "127.0.0.1"
}
// Test with failed pleg health check.
fw.fakeKubelet.plegHealth = false
assertHealthFails(t, fw.testHTTPServer.URL+"/healthz", http.StatusInternalServerError)
}
// returns http response status code from the HTTP GET
func assertHealthIsOk(t *testing.T, httpURL string) {
resp, err := http.Get(httpURL)