istio/istio · error

failed to load args: %v

Error message

failed to load args: %v

What it means

Error "failed to load args: %v" thrown in istio/istio.

Source

Thrown at cni/pkg/plugin/plugin.go:181

	}()

	conf, err := parseConfig(args.StdinData)
	if err != nil {
		log.Errorf("istio-cni cmdAdd failed to parse config %v %v", string(args.StdinData), err)
		return err
	}

	// Preemptively check if the pod is a CNI pod.
	// It is possible that the kubeconfig is not available if it hasn't been written yet
	// by the CNI pod or it is invalid which cause the CNI pod to be unable to start if
	// on the creation of a new K8s client. We preemptively check if the pod is a CNI pod
	// to avoid a deadlock on the kubeconfig when the k8s client is unnecessary to process
	// the CNI add event for the CNI pod itself. This applies to both ambient and sidecar
	// mode, since newK8sClient below runs unconditionally and would otherwise deadlock the
	// CNI pod when its kubeconfig is not yet present (for example after a node reboot).
	k8sArgs := K8sArgs{}
	if err := types.LoadArgs(args.Args, &k8sArgs); err != nil {
		return fmt.Errorf("failed to load args: %v", err)
	}
	if isCNIPod(conf, &k8sArgs) {
		// This is our own agent pod, so the kube client is not needed to process the
		// event. Skip it rather than block on a kubeconfig that may not exist yet.
		log.Infof("%v looks like our own agent pod, skipping", k8sArgs.K8S_POD_NAME)
		return pluginResponse(conf)
	}

	// Create a kube client
	client, err := newK8sClient(*conf)
	if err != nil {
		return fmt.Errorf("failed to createNewK8sClient: %v", err)
	}

	// Actually do the add
	mgr := IptablesInterceptRuleMgr()
	if conf.NativeNftables {
		mgr = NftablesInterceptRuleMgr()

View on GitHub (pinned to 8dc789c5cf)

When it happens

Trigger: Thrown at cni/pkg/plugin/plugin.go:181 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of istio/istio@8dc789c5cf (2026-08-15). Data as JSON: /api/errors/473cfd88f27717fb. Report an issue: GitHub.