{{- end }}
  {{- if .Values.global.logAsJson }}
    - --log_as_json
  {{- end }}
    lifecycle:
      postStart:
        exec:
          command:
          - pilot-agent
          - wait
          - --url=http://localhost:15020/healthz/ready
    env:
    - name: ISTIO_META_GENERATOR
      value: grpc
    - name: OUTPUT_CERTS
      value: /var/lib/istio/data

# 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)

LINUX_AGENT_BINARIES:=./cni/cmd/istio-cni \
  ./cni/cmd/install-cni \
  $(AGENT_BINARIES)

BINARIES:=$(STANDARD_BINARIES) $(AGENT_BINARIES) $(LINUX_AGENT_BINARIES)

# List of binaries that have their size tested
RELEASE_SIZE_TEST_BINARIES:=pilot-discovery pilot-agent istioctl envoy ztunnel client server

# Istio CNI Node Agent

The Istio CNI Node Agent is responsible for several things

- Install an Istio CNI plugin binary on each node's filesystem, updating that node's CNI config in e.g (`/etc/cni/net.d`), and watching the config and binary paths to reinstall if things are modified.

// SecretItemDiff represents a secret that has been diffed between nodeagent and proxy
type SecretItemDiff struct {
	Agent string `json:"agent"`
	Proxy string `json:"proxy"`
	SecretItem
}

// SecretItem is an intermediate representation of secrets, used to provide a common
// format between the envoy proxy secrets and node agent output which can be diffed
type SecretItem struct {
	Name        string `json:"resource_name"`

istio.VERSION
LICENSES.txt
# Proxy generated proxy config in integration test
tests/integration/component/proxy/envoy.conf
**/var/run/secrets/
# Certs generated by testing
security/cmd/node_agent/na/cert_file
security/cmd/node_agent/na/pkey
# istioctl bash completion file
tools/istioctl.bash
vendor
# Contains the built artifacts
out/
etc/
var/
# Go compiled tests
*.test
# Profiles
*.prof

		"Access Istiod via the tap service of each agent")
	statusCmd.PersistentFlags().IntVar(&multiXdsOpts.XdsViaAgentsLimit, "xds-via-agents-limit", 100,
		"Maximum number of pods being visited by istioctl when `xds-via-agent` flag is true."+
			"To iterate all the agent pods without limit, set to 0")

	return statusCmd

# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

# This is intended to explore new features coming to Istio.
# Stability, security, and performance are not guaranteed - use at your own risk.
meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

				if err != nil {
					fmt.Fprintf(os.Stderr, "Skip the agent in Pod %s due to the error: %s\n", namespacedName, err.Error())
					continue
				}
				responses = append(responses, resp)
			}
			token = list.ListMeta.GetContinue()
			if token == "" {
				break
			}
		}
	} else {
		// If there is a specific pod name in ResourceName, use the agent in the pod.
		if len(dr.ResourceNames) != 1 {