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ensure that klog verbosity is set to the same level as logrus #7303

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merged 1 commit into from
May 10, 2023
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ensure that klog verbosity is set to the same level as logrus #7303

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24 changes: 24 additions & 0 deletions pkg/daemons/executor/embed.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,9 +5,12 @@ package executor

import (
"context"
"flag"
"net/http"
"runtime"
"runtime/debug"
"strconv"
"time"

"github.com/k3s-io/k3s/pkg/cli/cmds"
daemonconfig "github.com/k3s-io/k3s/pkg/daemons/config"
Expand All @@ -31,6 +34,7 @@ import (
cloudcontrollerconfig "k8s.io/cloud-provider/app/config"
ccmopt "k8s.io/cloud-provider/options"
cliflag "k8s.io/component-base/cli/flag"
"k8s.io/klog/v2"
"k8s.io/kubernetes/cmd/kube-apiserver/app"
cmapp "k8s.io/kubernetes/cmd/kube-controller-manager/app"
proxy "k8s.io/kubernetes/cmd/kube-proxy/app"
Expand All @@ -47,6 +51,26 @@ func init() {

func (e *Embedded) Bootstrap(ctx context.Context, nodeConfig *daemonconfig.Node, cfg cmds.Agent) error {
e.nodeConfig = nodeConfig

go func() {
// Ensure that the log verbosity remains set to the configured level by resetting it at 1-second intervals
// for the first 2 minutes that K3s is starting up. This is necessary because each of the Kubernetes
// components will initialize klog and reset the verbosity flag when they are starting.
logCtx, cancel := context.WithTimeout(ctx, time.Second*120)
defer cancel()
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klog.InitFlags(nil)
for {
flag.Set("v", strconv.Itoa(cmds.LogConfig.VLevel))

select {
case <-time.After(time.Second):
case <-logCtx.Done():
return
}
}
}()

return nil
}

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