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Merge pull request #121770 from frzifus/tracing_kubelet_read-only

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pass tracerprovider to kublet-readonly server
This commit is contained in:
Kubernetes Prow Robot 2024-04-17 23:59:33 -07:00 committed by GitHub
commit 3fda574e5e
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4 changed files with 19 additions and 16 deletions
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2
cmd/kubelet/app/server.go
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@ -1275,7 +1275,7 @@ func startKubelet(k kubelet.Bootstrap, podCfg *config.PodConfig, kubeCfg *kubele
go k.ListenAndServe(kubeCfg, kubeDeps.TLSOptions, kubeDeps.Auth, kubeDeps.TracerProvider)
}
if kubeCfg.ReadOnlyPort > 0 {
go k.ListenAndServeReadOnly(netutils.ParseIPSloppy(kubeCfg.Address), uint(kubeCfg.ReadOnlyPort))
go k.ListenAndServeReadOnly(netutils.ParseIPSloppy(kubeCfg.Address), uint(kubeCfg.ReadOnlyPort), kubeDeps.TracerProvider)
}
go k.ListenAndServePodResources()
}

6
pkg/kubelet/kubelet.go
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@ -237,7 +237,7 @@ type Bootstrap interface {
BirthCry()
StartGarbageCollection()
ListenAndServe(kubeCfg *kubeletconfiginternal.KubeletConfiguration, tlsOptions *server.TLSOptions, auth server.AuthInterface, tp trace.TracerProvider)
ListenAndServeReadOnly(address net.IP, port uint)
ListenAndServeReadOnly(address net.IP, port uint, tp trace.TracerProvider)
ListenAndServePodResources()
Run(<-chan kubetypes.PodUpdate)
RunOnce(<-chan kubetypes.PodUpdate) ([]RunPodResult, error)
@ -2941,8 +2941,8 @@ func (kl *Kubelet) ListenAndServe(kubeCfg *kubeletconfiginternal.KubeletConfigur
}
// ListenAndServeReadOnly runs the kubelet HTTP server in read-only mode.
func (kl *Kubelet) ListenAndServeReadOnly(address net.IP, port uint) {
server.ListenAndServeKubeletReadOnlyServer(kl, kl.resourceAnalyzer, address, port)
func (kl *Kubelet) ListenAndServeReadOnly(address net.IP, port uint, tp trace.TracerProvider) {
server.ListenAndServeKubeletReadOnlyServer(kl, kl.resourceAnalyzer, address, port, tp)
}
// ListenAndServePodResources runs the kubelet podresources grpc service

25
pkg/kubelet/server/server.go
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@ -161,7 +161,12 @@ func ListenAndServeKubeletServer(
address := netutils.ParseIPSloppy(kubeCfg.Address)
port := uint(kubeCfg.Port)
klog.InfoS("Starting to listen", "address", address, "port", port)
handler := NewServer(host, resourceAnalyzer, auth, tp, kubeCfg)
handler := NewServer(host, resourceAnalyzer, auth, kubeCfg)
if utilfeature.DefaultFeatureGate.Enabled(features.KubeletTracing) {
handler.InstallTracingFilter(tp)
}
s := &http.Server{
Addr: net.JoinHostPort(address.String(), strconv.FormatUint(uint64(port), 10)),
Handler: &handler,
@ -191,10 +196,14 @@ func ListenAndServeKubeletReadOnlyServer(
host HostInterface,
resourceAnalyzer stats.ResourceAnalyzer,
address net.IP,
port uint) {
port uint,
tp oteltrace.TracerProvider) {
klog.InfoS("Starting to listen read-only", "address", address, "port", port)
// TODO: https://github.com/kubernetes/kubernetes/issues/109829 tracer should use WithPublicEndpoint
s := NewServer(host, resourceAnalyzer, nil, oteltrace.NewNoopTracerProvider(), nil)
s := NewServer(host, resourceAnalyzer, nil, nil)
if utilfeature.DefaultFeatureGate.Enabled(features.KubeletTracing) {
s.InstallTracingFilter(tp, otelrestful.WithPublicEndpoint())
}
server := &http.Server{
Addr: net.JoinHostPort(address.String(), strconv.FormatUint(uint64(port), 10)),
@ -264,7 +273,6 @@ func NewServer(
host HostInterface,
resourceAnalyzer stats.ResourceAnalyzer,
auth AuthInterface,
tp oteltrace.TracerProvider,
kubeCfg *kubeletconfiginternal.KubeletConfiguration) Server {
server := Server{
@ -278,9 +286,6 @@ func NewServer(
if auth != nil {
server.InstallAuthFilter()
}
if utilfeature.DefaultFeatureGate.Enabled(features.KubeletTracing) {
server.InstallTracingFilter(tp)
}
server.InstallDefaultHandlers()
if kubeCfg != nil && kubeCfg.EnableDebuggingHandlers {
server.InstallDebuggingHandlers()
@ -334,8 +339,8 @@ func (s *Server) InstallAuthFilter() {
}
// InstallTracingFilter installs OpenTelemetry tracing filter with the restful Container.
func (s *Server) InstallTracingFilter(tp oteltrace.TracerProvider) {
s.restfulCont.Filter(otelrestful.OTelFilter("kubelet", otelrestful.WithTracerProvider(tp)))
func (s *Server) InstallTracingFilter(tp oteltrace.TracerProvider, opts ...otelrestful.Option) {
s.restfulCont.Filter(otelrestful.OTelFilter("kubelet", append(opts, otelrestful.WithTracerProvider(tp))...))
}
// addMetricsBucketMatcher adds a regexp matcher and the relevant bucket to use when

2
pkg/kubelet/server/server_test.go
View File

@ -37,7 +37,6 @@ import (
cadvisorapiv2 "github.com/google/cadvisor/info/v2"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
oteltrace "go.opentelemetry.io/otel/trace"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
@ -361,7 +360,6 @@ func newServerTestWithDebuggingHandlers(kubeCfg *kubeletconfiginternal.KubeletCo
fw.fakeKubelet,
stats.NewResourceAnalyzer(fw.fakeKubelet, time.Minute, &record.FakeRecorder{}),
fw.fakeAuth,
oteltrace.NewNoopTracerProvider(),
kubeCfg,
)
fw.serverUnderTest = &server