return netlink.LinkByIndex(linkIndex)
}

// getPodNetNs finds the network namespace for a given pod. There is not a great way to do this. Network namespaces live
// under the procfs, /proc/<pid>/ns/net. In majority of cases, this is not used directly, but is rather bind mounted to
// /var/run/netns/<name>. However, this pattern is not ubiquitous. Some platforms bind mount to other places. As we run

	expDate, err := time.Parse(time.RFC3339, cert.ExpirationTime)
	if err != nil {
		log.Errorf("certificate timestamp (%v) could not be parsed: %v", cert.ExpirationTime, err)
		return false
	}
	fromDate, err := time.Parse(time.RFC3339, cert.ValidFrom)
	if err != nil {
		log.Errorf("certificate timestamp (%v) could not be parsed: %v", cert.ValidFrom, err)
		return false
	}
	if today.After(fromDate) && today.Before(expDate) {
		return true

	}
	return err
}

var (
	secretItemColumns = []string{"RESOURCE NAME", "TYPE", "STATUS", "VALID CERT", "SERIAL NUMBER", "NOT AFTER", "NOT BEFORE"}
	secretDiffColumns = []string{"RESOURCE NAME", "TYPE", "VALID CERT", "NODE AGENT", "PROXY", "SERIAL NUMBER", "NOT AFTER", "NOT BEFORE"}
)

// printSecretItemsTabular prints the secret in table format
func (w *sdsWriter) printSecretItemsTabular(secrets []SecretItem) error {

func (o *CentralControlPlaneOptions) ValidateControlPlaneFlags() error {
	if o.Xds != "" && o.XdsPodLabel != "" {
		return fmt.Errorf("either --xds-address or --xds-label, not both")
	}
	if o.Plaintext && o.CertDir != "" {
		return fmt.Errorf("either --plaintext or --cert-dir, not both")
	}
	return nil

		schema.GroupVersionKind{Group: "", Version: "v1", Kind: "Endpoints"})
	// CRDs are not in the prune list, but must be considered for tests.
	allClusterGVKs = helmreconciler.ClusterResources
)

func init() {
	if kubeBuilderInstalled() {
		// TestMode is required to not wait in the go client for resources that will never be created in the test server.
		helmreconciler.TestMode = true

// Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,

	var addedIPSnapshot []netip.Addr

	for _, pod := range ambientPods {
		podIPs := util.GetPodIPsIfPresent(pod)
		if len(podIPs) == 0 {
			log.Warnf("pod %s does not appear to have any assigned IPs, not syncing with ipset", pod.Name)
		} else {
			err := addPodToHostNSIpset(pod, podIPs, &s.hostsideProbeIPSet)
			if err != nil {
				return err
			}

	case *gatewayapi.Gateway:
		if !gateway.IsManaged(&t.Spec) {
			return "", nil, fmt.Errorf("gateway is not a managed gateway")
		}
		namespace = t.Namespace
		selector, err = labels.Parse(constants.GatewayNameLabel + "=" + t.Name)
	case *gatewayapibeta.Gateway:
		if !gateway.IsManaged(&t.Spec) {
			return "", nil, fmt.Errorf("gateway is not a managed gateway")
		}
		namespace = t.Namespace

	"fmt"
	"path/filepath"
	"runtime"
	"sync"

	corev1 "k8s.io/api/core/v1"

	"istio.io/istio/pkg/maps"
	"istio.io/istio/pkg/zdsapi"
)

var ErrPodNotFound = errors.New("netns not provided, but is needed as pod is not in cache")

type PodNetnsCache interface {
	ReadCurrentPodSnapshot() map[string]WorkloadInfo
}

// Hold a cache of node local pods with their netns

//go:build !linux
// +build !linux

// Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,