load kubeconfig filepath when load rest config fail

[HeavenTonight]

What type of PR is this?

/kind bug

What this PR does / why we need it:

fix(kubean-admission):load kubeconfig filepath when load rest config fail

Which issue(s) this PR fixes:

None

[ErikJiang]

What is the purpose of this modification?
How can we obtain the kubeconfig file within the container image?

[HeavenTonight]

What is the purpose of this modification? How can we obtain the kubeconfig file within the container image?

kubean/cmd/kubean-admission/app/app.go

Lines 51 to 63 in cb4c77f

	resetConfig, err := rest.InClusterConfig()
	if err != nil {
	klog.ErrorS(err, " can not load k8s config")
	return err
	}
	resetConfig.QPS = opt.KubeAPIQPS
	resetConfig.Burst = opt.KubeAPIBurst
	if err != nil {
	resetConfig, err = clientcmd.BuildConfigFromFlags("", os.Getenv("HOME")+"/.kube/config")
	if err != nil {
	return err
	}
	}

Because this is code logic error, when first err not nil, below code will never be executed!

kubean/cmd/kubean-admission/app/app.go

Line 59 in cb4c77f

resetConfig, err = clientcmd.BuildConfigFromFlags("", os.Getenv("HOME")+"/.kube/config")

same logic you can reference to this code:

kubean/cmd/kubean-operator/app/app.go

Lines 104 to 110 in cb4c77f

	resetConfig, err := rest.InClusterConfig()
	if err != nil {
	resetConfig, err = clientcmd.BuildConfigFromFlags("", os.Getenv("HOME")+"/.kube/config")
	if err != nil {
	return err
	}
	}

[HeavenTonight]

What is the purpose of this modification? How can we obtain the kubeconfig file within the container image?

And then

How can we obtain the kubeconfig file within the container image?

I don't know why we use it this way, like this code:

kubean/cmd/kubean-admission/app/app.go

Line 59 in cb4c77f

resetConfig, err = clientcmd.BuildConfigFromFlags("", os.Getenv("HOME")+"/.kube/config")

kubean/cmd/kubean-operator/app/app.go

Line 106 in cb4c77f

resetConfig, err = clientcmd.BuildConfigFromFlags("", os.Getenv("HOME")+"/.kube/config")

[ErikJiang]

😀 I think it is possible to consider commenting out the BuildConfigFromFlags method used for debugging purposes,
Please refer to：https://github.com/hwameistor/hwameistor/blob/v0.14.2/pkg/pvc-autoresizer/autoresizer.go#L152-L153

[HeavenTonight]

😀 I think it is possible to consider commenting out the BuildConfigFromFlags method used for debugging purposes, Please refer to：https://github.com/hwameistor/hwameistor/blob/v0.14.2/pkg/pvc-autoresizer/autoresizer.go#L152-L153

I also think it should be like this. I will fix it.

[HeavenTonight]

Please review again, thanks! @ErikJiang

[ErikJiang]

Please troubleshoot the CI problem：
https://github.com/kubean-io/kubean/actions/runs/8642679500/job/23696047971?pr=1201