// parses prevResult according to the cniVersion
package main

import (
	"fmt"
	"os"

	"github.com/containernetworking/cni/pkg/skel"
	"github.com/containernetworking/cni/pkg/version"

	"istio.io/istio/cni/pkg/plugin"
	"istio.io/istio/pkg/log"
	istioversion "istio.io/istio/pkg/version"
)

func main() {
	if err := runPlugin(); err != nil {
		os.Exit(1)
	}
}

### Overview

- [istio-cni Helm chart](../manifests/charts/istio-cni/templates)
    - `install-cni` daemonset - main function is to install and help the node CNI, but it is also a proper server and interacts with K8S, watching Pods for recovery.
    - `istio-cni-config` configmap with CNI plugin config to add to CNI plugin chained config

            },
            "last_updated": "2024-03-04T08:37:44.851Z"
          }
        },
        {
          "name": "main_internal",
          "active_state": {
            "listener": {
              "@type": "type.googleapis.com/envoy.config.listener.v3.Listener",
              "name": "main_internal",
              "filter_chains": [
                {
                  "filters": [
                    {

NAME                   ADDRESSES PORT  MATCH DESTINATION
listener/main_internal           0     ALL   Cluster: inbound-vip|8100|http|httpbin.default.svc.cluster.local
listener/main_internal           0     ALL   Cluster: inbound-vip|8000|http|httpbin.default.svc.cluster.local
listener/main_internal           0     ALL   Cluster: encap
listener/main_internal           0     ALL   Cluster: encap

        }
      ],
      "dynamic_listeners": [
        {
          "name": "main_internal",
          "active_state": {
            "listener": {
              "@type": "type.googleapis.com/envoy.config.listener.v3.Listener",
              "name": "main_internal",
              "filter_chains": [
                {
                  "filters": [
                    {

	// Insert jumps to our custom chains
	// This is mostly just for visual tidiness and cleanup, as we can delete the secondary chains and jumps
	// without polluting the main table too much.

	// -t mangle -A PREROUTING -j ISTIO_PRERT
	iptablesBuilder.AppendRule(
		iptableslog.UndefinedCommand, iptablesconstants.PREROUTING, iptablesconstants.MANGLE,
		"-j", ChainInpodPrerouting,
	)

          "showLineNumbers": false,
          "showMiniMap": false
        },

		}
		cniConfigFilepath += "list"
	}

	installLog.Infof("Created CNI config %s", cniConfigFilepath)
	return cniConfigFilepath, nil
}

// If configured as chained CNI plugin, waits indefinitely for a main CNI config file to exist before returning
// Or until cancelled by parent context
func getCNIConfigFilepath(ctx context.Context, cfg pluginConfig) (string, error) {
	filename := cfg.cniConfName

// reducing the # of rules we need.
//
// BUT netlink lib doesn't support adding things to `list:set` types yet, and current tagged release
// doesn't support creating `list:set` types yet (is in main branch tho).
// So this will actually create 2 underlying ipsets, one for v4 and one for v6
func NewIPSet(name string, v6 bool, deps NetlinkIpsetDeps) (IPSet, error) {
	var err error
	set := IPSet{

			"where logger components can be listed by running \"istioctl proxy-config log <pod-name[.namespace]>\""+
			"or referred from https://github.com/envoyproxy/envoy/blob/main/source/common/common/logger.h, and level can be one of %s", levelListString))
	return logCmd
}

func routeConfigCmd(ctx cli.Context) *cobra.Command {
	var podName, podNamespace string