package repair

import (
	"fmt"
	"math"
	"net"
	"strconv"

	netns "github.com/containernetworking/plugins/pkg/ns"
	"github.com/prometheus/procfs"
	corev1 "k8s.io/api/core/v1"

	"istio.io/istio/pkg/log"
)

func getPidNamespace(pid int) string {
	return "/host/proc/" + strconv.Itoa(pid) + "/ns/net"
}

func runInHost[T any](f func() (T, error)) (T, error) {
	var res T
	ns := getPidNamespace(1)

// limitations under the License.

package nodeagent

import (
	"errors"
	"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
}

templates:
  sidecar: |-
    spec:
      initContainers:
      - name: istio-init
        image: docker.io/istio/proxy_init:unittest-{{.Values.global.tag}}
      containers:
      - name: istio-proxy

.DEFAULT_GOAL := default

# This repository has been enabled for BUILD_WITH_CONTAINER=1. Some
# test cases fail within Docker, and Mac + Docker isn't quite perfect.
# For more information see: https://github.com/istio/istio/pull/19322/

BUILD_WITH_CONTAINER ?= 1
CONTAINER_OPTIONS = --mount type=bind,source=/tmp,destination=/tmp --net=host

export COMMONFILES_POSTPROCESS = tools/commonfiles-postprocess.sh

Istio offers a variety of increasingly high level abstractions on top of the common Kubernetes [`client-go`](https://github.com/kubernetes/client-go).

```mermaid
flowchart TD
    kcg["Kubernetes client-go"]
    ic["Istio kube.Client"]
    ikc["Istio kclient.Client"]
    ikrt["Istio krt.Collection"]
    ikrt--"Builds on"-->ikc--"Builds on"-->ic--"Builds on"-->kcg
```

                "name": "istio.io/telemetry/stats/prometheus/sidecar/Outbound/HTTP"
            },
            "lastUpdated": "2023-12-23T13:46:00.701Z"
        },
        {
            "ecdsFilter": {
                "@type": "type.googleapis.com/envoy.config.core.v3.TypedExtensionConfig",
                "name": "istio.io/telemetry/stats/prometheus/sidecar/Inbound/HTTP"
            },

	"errors"
	"fmt"
	"net/netip"
	"strings"

	"istio.io/istio/cni/pkg/ipset"
	"istio.io/istio/cni/pkg/scopes"
	istiolog "istio.io/istio/pkg/log"
	"istio.io/istio/pkg/ptr"
	"istio.io/istio/tools/istio-iptables/pkg/builder"
	iptablesconfig "istio.io/istio/tools/istio-iptables/pkg/config"
	iptablesconstants "istio.io/istio/tools/istio-iptables/pkg/constants"
	dep "istio.io/istio/tools/istio-iptables/pkg/dependencies"

    server: https://50.76.2.1:443
  name: local
contexts:
- context:
    cluster: local
    user: istio-cni
  name: istio-cni-context
current-context: istio-cni-context
kind: Config
preferences: {}
users:
- name: istio-cni
  user:

// limitations under the License.

package nodeagent

import (
	"net/netip"

	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/env"
)

var (
	PodNamespace      = env.RegisterStringVar("POD_NAMESPACE", "", "pod's namespace").Get()
	SystemNamespace   = env.RegisterStringVar("SYSTEM_NAMESPACE", constants.IstioSystemNamespace, "istio system namespace").Get()
	PodName           = env.RegisterStringVar("POD_NAME", "", "").Get()

	"k8s.io/kubectl/pkg/util/podutils"
	gatewayapi "sigs.k8s.io/gateway-api/apis/v1"
	gatewayapibeta "sigs.k8s.io/gateway-api/apis/v1beta1"

	"istio.io/api/label"
	"istio.io/istio/pilot/pkg/config/kube/gateway"
	kubelib "istio.io/istio/pkg/kube"
)

// InferPodInfo Uses name to infer namespace if the passed name contains namespace information.
// Otherwise uses the namespace value passed into the function