outFilename:     "regular.conf",
			fileContents: `
{
	"cniVersion": "0.3.1",
	"name": "istio-cni",
	"type": "istio-cni"
}`,
		},
		{
			name:            "another regular file",
			dir:             tempDir,
			expectedFailure: false,
			inFilename:      "regular2.conf",
			outFilename:     "regular.conf",
			fileContents: `
{
	"cniVersion": "0.3.1",
	"name": "istio-cni",
	"type": "istio-cni"
}`,
		},

// See the License for the specific language governing permissions and
// limitations under the License.

// This is a sample chained plugin that supports multiple CNI versions. It
// parses prevResult according to the cniVersion
package plugin

type iptables struct{}

func newIPTables() InterceptRuleMgr {
	return &iptables{}

// See the License for the specific language governing permissions and
// limitations under the License.

// This is a sample chained plugin that supports multiple CNI versions. It
// parses prevResult according to the cniVersion
package plugin

import "errors"

// ErrNotImplemented is returned when a requested feature is not implemented.
var ErrNotImplemented = errors.New("not implemented")

	var result *cniv1.Result
	if conf.PrevResult == nil {
		result = &cniv1.Result{
			CNIVersion: cniv1.ImplementedSpecVersion,
		}
		return types.PrintResult(result, conf.CNIVersion)
	}

	// Pass through the result for the next plugin
	return types.PrintResult(conf.PrevResult, conf.CNIVersion)
}

func CmdCheck(args *skel.CmdArgs) (err error) {
	return nil
}

	if err != nil {
		return nil, fmt.Errorf("error loading existing CNI config (JSON error): %v", err)
	}

	delete(istioMap, "cniVersion")

	var newMap map[string]any

	if _, ok := existingMap["type"]; ok {
		// Assume it is a regular network conf file
		delete(existingMap, "cniVersion")

		plugins := make([]map[string]any, 2)
		plugins[0] = existingMap
		plugins[1] = istioMap

		newMap = map[string]any{

data:
  # The CNI network configuration to add to the plugin chain on each node.  The special
  # values in this config will be automatically populated.
  cni_network_config: |-
        {
          "cniVersion": "0.3.1",
          "name": "istio-cni",
          "type": "istio-cni",
          "log_level": {{ quote .Values.cni.logLevel }},
          "log_uds_address": "__LOG_UDS_ADDRESS__",

// See the License for the specific language governing permissions and
// limitations under the License.

// This is a sample chained plugin that supports multiple CNI versions. It
// parses prevResult according to the cniVersion
package plugin

import (
	"fmt"

	"github.com/containernetworking/plugins/pkg/ns"

	"istio.io/istio/pkg/log"
	"istio.io/istio/tools/istio-iptables/pkg/cmd"

const (
	testPodName          = "testPod"
	testNSName           = "testNS"
	testSandboxDirectory = "/tmp"
	invalidVersion       = "0.1.0"
	preVersion           = "0.2.0"
)

var mockConfTmpl = `{
    "cniVersion": "%s",
	"name": "istio-plugin-sample-test",
	"type": "sample",
    "capabilities": {
        "testCapability": false
    },
    "ipam": {
        "type": "testIPAM"
    },
    "dns": {

// See the License for the specific language governing permissions and
// limitations under the License.

// This is a sample chained plugin that supports multiple CNI versions. It
// 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"

	defaultFileMode = 0o644

	cniConfName          = "CNI_CONF_NAME"
	chainedCNIPluginName = "CHAINED_CNI_PLUGIN"
	cniNetworkConfigName = "CNI_NETWORK_CONFIG"
	cniNetworkConfig     = `{
  "cniVersion": "0.3.1",
  "type": "istio-cni",
  "log_level": "info",
  "kubernetes": {
      "kubeconfig": "__KUBECONFIG_FILEPATH__",
      "cni_bin_dir": "/opt/cni/bin",
      "exclude_namespaces": [ "istio-system" ]
  }
}