t.Helper()
	retry.UntilSuccessOrFail(t, func() error {
		return checkResult(result, expected)
	}, retry.Delay(time.Millisecond*10), retry.Timeout(time.Second*3))
}

// checkBinDir verifies the presence/absence of test files.
func checkBinDir(t *testing.T, tempCNIBinDir, op string, files ...string) error {
	t.Helper()
	for _, f := range files {
		if _, err := os.Stat(tempCNIBinDir + "/" + f); !os.IsNotExist(err) {

        Contributions with other software (except as part of its Contributor
        Version); or

     c. under Patent Claims infringed by Covered Software in the absence of its
        Contributions.

     This License does not grant any rights in the trademarks, service marks, or
     logos of any Contributor (except as may be necessary to comply with the

	// (e.g. LoadBalanced Service packets, etc) that need to be authenticated/captured/proxied.
	//
	// We want to do the same thing in ambient but can't rely on podSpec injection. So, do effectively the same thing,
	// but with iptables rules - use `--socket-exists` as a proxy for "is this a forwarded packet" vs "is this originating from

            {
              "datasource": {
                "type": "prometheus",
                "uid": "${datasource}"
              },
              "expr": "sum(pilot_xds_cds_reject{app=\"istiod\"}) or (absent(pilot_xds_cds_reject{app=\"istiod\"}) - 1)",
              "format": "time_series",
              "hide": false,
              "intervalFactor": 1,
              "legendFormat": "Rejected CDS Configs",

# The ambient profile enables ambient mode. The Istiod, CNI, and ztunnel charts must be deployed
meshConfig:
  defaultConfig:
    proxyMetadata:
      ISTIO_META_ENABLE_HBONE: "true"
global:
  variant: distroless
pilot:
  env:
    PILOT_ENABLE_AMBIENT: "true"
    CA_TRUSTED_NODE_ACCOUNTS: "istio-system/ztunnel,kube-system/ztunnel"
cni:
  ambient:
    enabled: true

# The ambient profile enables ambient mode. The Istiod, CNI, and ztunnel charts must be deployed
meshConfig:
  defaultConfig:
    proxyMetadata:
      ISTIO_META_ENABLE_HBONE: "true"
global:
  variant: distroless
pilot:
  env:
    PILOT_ENABLE_AMBIENT: "true"
    CA_TRUSTED_NODE_ACCOUNTS: "istio-system/ztunnel,kube-system/ztunnel"
cni:
  ambient:
    enabled: true

global:
  platform: openshift
cni:
  ambient:
    enabled: true
  cniBinDir: /var/lib/cni/bin
  cniConfDir: /etc/cni/multus/net.d
  chained: false
  cniConfFileName: "istio-cni.conf"
  logLevel: info
  provider: "multus"
pilot:
  cni:
    enabled: true
    provider: "multus"
  variant: distroless
  env:
    PILOT_ENABLE_AMBIENT: "true"

# Istio Agent

This document describes the internal architecture of Istio agent.

## High Level overview

![High Level overview](docs/overview.svg)

At a high level, the Istio agent acts as an intermediate proxy between Istiod and Envoy. This is done
at two levels. For distributing workload certificates, Envoy will send [SDS](https://www.envoyproxy.io/docs/envoy/latest/configuration/security/secret)

global:
  platform: openshift
cni:
  ambient:
    enabled: true
  cniBinDir: /var/lib/cni/bin
  cniConfDir: /etc/cni/multus/net.d
  chained: false
  cniConfFileName: "istio-cni.conf"
  logLevel: info
  provider: "multus"
pilot:
  cni:
    enabled: true
    provider: "multus"
  variant: distroless
  env:
    PILOT_ENABLE_AMBIENT: "true"

global:
  platform: openshift
cni:
  ambient:
    enabled: true
  cniBinDir: /var/lib/cni/bin
  cniConfDir: /etc/cni/multus/net.d
  chained: false
  cniConfFileName: "istio-cni.conf"
  logLevel: info
  provider: "multus"
pilot:
  cni:
    enabled: true
    provider: "multus"
  variant: distroless
  env:
    PILOT_ENABLE_AMBIENT: "true"