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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon cancel-x"><use xlink:href="/v1.8/img/icons.svg#cancel-x"/></svg></button></form></nav></header><div class=banner-container></div><main class=primary><div id=sidebar-container class="sidebar-container sidebar-offcanvas"><nav id=sidebar aria-label="Section Navigation"><div class=directory><div class=card><button class="header dynamic" id=card17 title="Learn about the different parts of the Istio system and the abstractions it uses." aria-controls=card17-body><svg class="icon concepts"><use xlink:href="/v1.8/img/icons.svg#concepts"/></svg>Concepts</button><div class=body aria-labelledby=card17 role=region id=card17-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card17><li role=none><a role=treeitem title="Introduces Istio, the problems it solves, its high-level architecture, and its design goals." href=/v1.8/docs/concepts/what-is-istio/>What is Istio?</a></li><li role=none><a role=treeitem title="Describes the various Istio features focused on traffic routing and control." href=/v1.8/docs/concepts/traffic-management/>Traffic Management</a></li><li role=none><a role=treeitem title="Describes Istio's authorization and authentication functionality." href=/v1.8/docs/concepts/security/>Security</a></li><li role=none><a role=treeitem title="Describes the telemetry and monitoring features provided by Istio." href=/v1.8/docs/concepts/observability/>Observability</a></li><li role=none><a role=treeitem title="Describes Istio's WebAssembly Plugin system." href=/v1.8/docs/concepts/wasm/>Extensibility</a></li></ul></div></div><div class=card><button class="header dynamic" id=card40 title="Instructions for installing the Istio control plane on Kubernetes." aria-controls=card40-body><svg class="icon setup"><use xlink:href="/v1.8/img/icons.svg#setup"/></svg>Setup</button><div class=body aria-labelledby=card40 role=region id=card40-body><ul role=tree aria-expanded=true aria-labelledby=card40><li role=none><a role=treeitem title="Try Istio’s features quickly and easily." href=/v1.8/docs/setup/getting-started/>Getting Started</a></li><li role=treeitem aria-label="Platform Setup"><button aria-hidden=true></button><a title="How to prepare various Kubernetes platforms before installing Istio." href=/v1.8/docs/setup/platform-setup/>Platform Setup</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Instructions to setup an Alibaba Cloud Kubernetes cluster for Istio." href=/v1.8/docs/setup/platform-setup/alicloud/>Alibaba Cloud</a></li><li role=none><a role=treeitem title="Instructions to setup an Azure cluster for Istio." href=/v1.8/docs/setup/platform-setup/azure/>Azure</a></li><li role=none><a role=treeitem title="Instructions to setup Docker Desktop for Istio." href=/v1.8/docs/setup/platform-setup/docker/>Docker Desktop</a></li><li role=none><a role=treeitem title="Instructions to setup a Google Kubernetes Engine cluster for Istio." href=/v1.8/docs/setup/platform-setup/gke/>Google Kubernetes Engine</a></li><li role=none><a role=treeitem title="Instructions to setup an IBM Cloud cluster for Istio." href=/v1.8/docs/setup/platform-setup/ibm/>IBM Cloud</a></li><li role=none><a role=treeitem title="Instructions to setup kind for Istio." href=/v1.8/docs/setup/platform-setup/kind/>kind</a></li><li role=none><a role=treeitem title="Instructions to setup Kops for use with Istio." href=/v1.8/docs/setup/platform-setup/kops/>Kops</a></li><li role=none><a role=treeitem title="Instructions to setup a Gardener cluster for Istio." href=/v1.8/docs/setup/platform-setup/gardener/>Kubernetes Gardener</a></li><li role=none><a role=treeitem title="Instructions to setup a KubeSphere Container Platform for Istio." href=/v1.8/docs/setup/platform-setup/kubesphere/>KubeSphere Container Platform</a></li><li role=none><a role=treeitem title="Instructions to setup MicroK8s for use with Istio." href=/v1.8/docs/setup/platform-setup/microk8s/>MicroK8s</a></li><li role=none><a role=treeitem title="Instructions to setup minikube for Istio." href=/v1.8/docs/setup/platform-setup/minikube/>Minikube</a></li><li role=none><a role=treeitem title="Instructions to setup an OpenShift cluster for Istio." href=/v1.8/docs/setup/platform-setup/openshift/>OpenShift</a></li><li role=none><a role=treeitem title="Instructions to setup an OKE cluster for Istio." href=/v1.8/docs/setup/platform-setup/oci/>Oracle Cloud Infrastructure</a></li></ul></li><li role=treeitem aria-label=Install><button aria-hidden=true></button><a title="Choose the guide that best suits your needs and platform." href=/v1.8/docs/setup/install/>Install</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Install and customize any Istio configuration profile for in-depth evaluation or production use." href=/v1.8/docs/setup/install/istioctl/>Install with Istioctl</a></li><li role=none><a role=treeitem title="Instructions to install Istio in a Kubernetes cluster using the Istio operator." href=/v1.8/docs/setup/install/operator/>Istio Operator Install</a></li><li role=none><a role=treeitem title="Install and configure Istio for in-depth evaluation." href=/v1.8/docs/setup/install/helm/>Install with Helm</a></li><li role=treeitem aria-label="Install Multicluster"><button aria-hidden=true></button><a title="Install an Istio mesh across multiple Kubernetes clusters." href=/v1.8/docs/setup/install/multicluster/>Install Multicluster</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Initial steps before installing Istio on multiple clusters." href=/v1.8/docs/setup/install/multicluster/before-you-begin/>Before you begin</a></li><li role=none><a role=treeitem title="Install an Istio mesh across multiple primary clusters." href=/v1.8/docs/setup/install/multicluster/multi-primary/>Install Multi-Primary</a></li><li role=none><a role=treeitem title="Install an Istio mesh across primary and remote clusters." href=/v1.8/docs/setup/install/multicluster/primary-remote/>Install Primary-Remote</a></li><li role=none><a role=treeitem title="Install an Istio mesh across multiple primary clusters on different networks." href=/v1.8/docs/setup/install/multicluster/multi-primary_multi-network/>Install Multi-Primary on different networks</a></li><li role=none><a role=treeitem title="Install an Istio mesh across primary and remote clusters on different networks." href=/v1.8/docs/setup/install/multicluster/primary-remote_multi-network/>Install Primary-Remote on different networks</a></li><li role=none><a role=treeitem title="Verify that Istio has been installed properly on multiple clusters." href=/v1.8/docs/setup/install/multicluster/verify/>Verify the installation</a></li></ul></li><li role=none><a role=treeitem title="Deploy Istio and connect a workload running within a virtual machine to it." href=/v1.8/docs/setup/install/virtual-machine/>Virtual Machine Installation</a></li></ul></li><li role=treeitem aria-label=Upgrade><button aria-hidden=true></button><a title="Upgrade, downgrade, and manage Istio accross multiple control plane revisions." href=/v1.8/docs/setup/upgrade/>Upgrade</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Upgrade Istio by first running a canary deployment of a new control plane." href=/v1.8/docs/setup/upgrade/canary/>Canary Upgrades</a></li><li role=none><a role=treeitem title="Upgrade or downgrade Istio in place." href=/v1.8/docs/setup/upgrade/in-place/>In-place Upgrades</a></li><li role=none><a role=treeitem title="Configuring and upgrading Istio with gateways." href=/v1.8/docs/setup/upgrade/gateways/>Managing Gateways with Multiple Revisions [experimental]</a></li></ul></li><li role=treeitem aria-label="More Guides"><button aria-hidden=true></button><a title="More information on additional setup tasks." href=/v1.8/docs/setup/additional-setup/>More Guides</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Describes the built-in Istio installation configuration profiles." href=/v1.8/docs/setup/additional-setup/config-profiles/>Installation Configuration Profiles</a></li><li role=none><a role=treeitem title="Install the Istio sidecar in application pods automatically using the sidecar injector webhook or manually using istioctl CLI." href=/v1.8/docs/setup/additional-setup/sidecar-injection/>Installing the Sidecar</a></li><li role=none><a role=treeitem title="Install and use Istio with the Istio CNI plugin, allowing operators to deploy services with lower privilege." href=/v1.8/docs/setup/additional-setup/cni/>Install Istio with the Istio CNI plugin</a></li><li role=none><a role=treeitem title="Install an external control plane and remote cluster." href=/v1.8/docs/setup/additional-setup/external-controlplane/>Install Istio with an External Control Plane</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card73 title="How to do single specific targeted activities with the Istio system." aria-controls=card73-body><svg class="icon tasks"><use xlink:href="/v1.8/img/icons.svg#tasks"/></svg>Tasks</button><div class=body aria-labelledby=card73 role=region id=card73-body><ul role=tree aria-expanded=true aria-labelledby=card73><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Tasks that demonstrate Istio's traffic routing features." href=/v1.8/docs/tasks/traffic-management/>Traffic Management</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="This task shows you how to configure dynamic request routing to multiple versions of a microservice." href=/v1.8/docs/tasks/traffic-management/request-routing/>Request Routing</a></li><li role=none><a role=treeitem title="This task shows you how to inject faults to test the resiliency of your application." href=/v1.8/docs/tasks/traffic-management/fault-injection/>Fault Injection</a></li><li role=none><a role=treeitem title="Shows you how to migrate traffic from an old to new version of a service." href=/v1.8/docs/tasks/traffic-management/traffic-shifting/>Traffic Shifting</a></li><li role=none><a role=treeitem title="Shows you how to migrate TCP traffic from an old to new version of a TCP service." href=/v1.8/docs/tasks/traffic-management/tcp-traffic-shifting/>TCP Traffic Shifting</a></li><li role=none><a role=treeitem title="This task shows you how to setup request timeouts in Envoy using Istio." href=/v1.8/docs/tasks/traffic-management/request-timeouts/>Request Timeouts</a></li><li role=none><a role=treeitem title="This task shows you how to configure circuit breaking for connections, requests, and outlier detection." href=/v1.8/docs/tasks/traffic-management/circuit-breaking/>Circuit Breaking</a></li><li role=none><a role=treeitem title="This task demonstrates the traffic mirroring/shadowing capabilities of Istio." href=/v1.8/docs/tasks/traffic-management/mirroring/>Mirroring</a></li><li role=treeitem aria-label=Ingress><button aria-hidden=true></button><a title="Controlling ingress traffic for an Istio service mesh." href=/v1.8/docs/tasks/traffic-management/ingress/>Ingress</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Describes how to configure an Istio gateway to expose a service outside of the service mesh." href=/v1.8/docs/tasks/traffic-management/ingress/ingress-control/>Ingress Gateways</a></li><li role=none><a role=treeitem title="Expose a service outside of the service mesh over TLS or mTLS." href=/v1.8/docs/tasks/traffic-management/ingress/secure-ingress/>Secure Gateways</a></li><li role=none><a role=treeitem title="Describes how to configure SNI passthrough for an ingress gateway." href=/v1.8/docs/tasks/traffic-management/ingress/ingress-sni-passthrough/>Ingress Gateway without TLS Termination</a></li><li role=none><a role=treeitem title="Describes how to configure a Kubernetes Ingress object to expose a service outside of the service mesh." href=/v1.8/docs/tasks/traffic-management/ingress/kubernetes-ingress/>Kubernetes Ingress</a></li><li role=none><a role=treeitem title="Describes how to configure the Kubernetes Service APIs with Istio." href=/v1.8/docs/tasks/traffic-management/ingress/service-apis/>Kubernetes Service APIs [Experimental]</a></li></ul></li><li role=treeitem aria-label=Egress><button aria-hidden=true></button><a title="Controlling egress traffic for an Istio service mesh." href=/v1.8/docs/tasks/traffic-management/egress/>Egress</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Describes how to configure Istio to route traffic from services in the mesh to external services." href=/v1.8/docs/tasks/traffic-management/egress/egress-control/>Accessing External Services</a></li><li role=none><a role=treeitem title="Describes how to configure Istio to perform TLS origination for traffic to external services." href=/v1.8/docs/tasks/traffic-management/egress/egress-tls-origination/>Egress TLS Origination</a></li><li role=none><a role=treeitem title="Describes how to configure Istio to direct traffic to external services through a dedicated gateway." href=/v1.8/docs/tasks/traffic-management/egress/egress-gateway/>Egress Gateways</a></li><li role=none><a role=treeitem title="Describes how to configure an Egress Gateway to perform TLS origination to external services using Secret Discovery Service." href=/v1.8/docs/tasks/traffic-management/egress/egress-gateway-tls-origination-sds/>Egress Gateways with TLS Origination (SDS)</a></li><li role=none><a role=treeitem title="Describes how to configure an Egress Gateway to perform TLS origination to external services using file mount certificates." href=/v1.8/docs/tasks/traffic-management/egress/egress-gateway-tls-origination/>Egress Gateways with TLS Origination (File Mount)</a></li><li role=none><a role=treeitem title="Describes how to enable egress traffic for a set of hosts in a common domain, instead of configuring each and every host separately." href=/v1.8/docs/tasks/traffic-management/egress/wildcard-egress-hosts/>Egress using Wildcard Hosts</a></li><li role=none><a role=treeitem title="Shows how to configure Istio for Kubernetes External Services." href=/v1.8/docs/tasks/traffic-management/egress/egress-kubernetes-services/>Kubernetes Services for Egress Traffic</a></li><li role=none><a role=treeitem title="Describes how to configure Istio to let applications use an external HTTPS proxy." href=/v1.8/docs/tasks/traffic-management/egress/http-proxy/>Using an External HTTPS Proxy</a></li></ul></li></ul></li><li role=treeitem aria-label=Security><button aria-hidden=true></button><a title="Demonstrates how to secure the mesh." href=/v1.8/docs/tasks/security/>Security</a><ul role=group aria-expanded=false><li role=treeitem aria-label="Certificate Management"><button aria-hidden=true></button><a title="Management of the certificates in Istio." href=/v1.8/docs/tasks/security/cert-management/>Certificate Management</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Shows how system administrators can configure Istio's CA with a root certificate, signing certificate and key." href=/v1.8/docs/tasks/security/cert-management/plugin-ca-cert/>Plug in CA Certificates</a></li><li role=none><a role=treeitem title="Shows how to provision and manage DNS certificates in Istio." href=/v1.8/docs/tasks/security/cert-management/dns-cert/>Istio DNS Certificate Management</a></li><li role=none><a role=treeitem title="Shows how to use a Custom Certificate Authority (that integrates with the Kubernetes CSR API) to provision Istio workload certificates." href=/v1.8/docs/tasks/security/cert-management/custom-ca-k8s/>Custom CA Integration using Kubernetes CSR [experimental]</a></li></ul></li><li role=treeitem aria-label=Authentication><button aria-hidden=true></button><a title="Controlling mutual TLS and end-user authentication for mesh services." href=/v1.8/docs/tasks/security/authentication/>Authentication</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Shows you how to use Istio authentication policy to setup mutual TLS and basic end-user authentication." href=/v1.8/docs/tasks/security/authentication/authn-policy/>Authentication Policy</a></li><li role=none><a role=treeitem title="Shows you how to incrementally migrate your Istio services to mutual TLS." href=/v1.8/docs/tasks/security/authentication/mtls-migration/>Mutual TLS Migration</a></li></ul></li><li role=treeitem aria-label=Authorization><button aria-hidden=true></button><a title="Shows how to control access to Istio services." href=/v1.8/docs/tasks/security/authorization/>Authorization</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Shows how to set up access control for HTTP traffic." href=/v1.8/docs/tasks/security/authorization/authz-http/>Authorization for HTTP traffic</a></li><li role=none><a role=treeitem title="How to set up access control for TCP traffic." href=/v1.8/docs/tasks/security/authorization/authz-tcp/>Authorization for TCP traffic</a></li><li role=none><a role=treeitem title="How to set up access control with JWT in Istio." href=/v1.8/docs/tasks/security/authorization/authz-jwt/>Authorization with JWT</a></li><li role=none><a role=treeitem title="Shows how to set up access control to deny traffic explicitly." href=/v1.8/docs/tasks/security/authorization/authz-deny/>Authorization policies with a deny action</a></li><li role=none><a role=treeitem title="How to set up access control on an ingress gateway." href=/v1.8/docs/tasks/security/authorization/authz-ingress/>Authorization on Ingress Gateway</a></li><li role=none><a role=treeitem title="Shows how to migrate from one trust domain to another without changing authorization policy." href=/v1.8/docs/tasks/security/authorization/authz-td-migration/>Authorization Policy Trust Domain Migration</a></li></ul></li></ul></li><li role=treeitem aria-label=Observability><button aria-hidden=true></button><a title="Demonstrates how to collect telemetry information from the mesh." href=/v1.8/docs/tasks/observability/>Observability</a><ul role=group aria-expanded=false><li role=treeitem aria-label=Metrics><button aria-hidden=true></button><a title="Demonstrates the collection and querying of metrics within Istio." href=/v1.8/docs/tasks/observability/metrics/>Metrics</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="This task shows you how to configure Istio to collect metrics for TCP services." href=/v1.8/docs/tasks/observability/metrics/tcp-metrics/>Collecting Metrics for TCP Services</a></li><li role=none><a role=treeitem title="This task shows you how to customize the Istio metrics." href=/v1.8/docs/tasks/observability/metrics/customize-metrics/>Customizing Istio Metrics</a></li><li role=none><a role=treeitem title="This task shows you how to improve telemetry by grouping requests and responses by their type." href=/v1.8/docs/tasks/observability/metrics/classify-metrics/>Classifying Metrics Based on Request or Response (Experimental)</a></li><li role=none><a role=treeitem title="This task shows you how to query for Istio Metrics using Prometheus." href=/v1.8/docs/tasks/observability/metrics/querying-metrics/>Querying Metrics from Prometheus</a></li><li role=none><a role=treeitem title="This task shows you how to setup and use the Istio Dashboard to monitor mesh traffic." href=/v1.8/docs/tasks/observability/metrics/using-istio-dashboard/>Visualizing Metrics with Grafana</a></li></ul></li><li role=treeitem aria-label=Logs><button aria-hidden=true></button><a title="Demonstrates the collection of logs within Istio." href=/v1.8/docs/tasks/observability/logs/>Logs</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="This task shows you how to configure Envoy proxies to print access logs to their standard output." href=/v1.8/docs/tasks/observability/logs/access-log/>Getting Envoy's Access Logs</a></li></ul></li><li role=treeitem aria-label="Distributed Tracing"><button aria-hidden=true></button><a title="This task shows you how to configure Istio-enabled applications to collect trace spans." href=/v1.8/docs/tasks/observability/distributed-tracing/>Distributed Tracing</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Overview of distributed tracing in Istio." href=/v1.8/docs/tasks/observability/distributed-tracing/overview/>Overview</a></li><li role=none><a role=treeitem title="Learn how to configure the proxies to send tracing requests to Zipkin." href=/v1.8/docs/tasks/observability/distributed-tracing/zipkin/>Zipkin</a></li><li role=none><a role=treeitem title="Learn how to configure the proxies to send tracing requests to Jaeger." href=/v1.8/docs/tasks/observability/distributed-tracing/jaeger/>Jaeger</a></li><li role=none><a role=treeitem title="How to configure the proxies to send tracing requests to Lightstep." href=/v1.8/docs/tasks/observability/distributed-tracing/lightstep/>Lightstep</a></li><li role=none><a role=treeitem title="How to configure tracing options (beta/development)." href=/v1.8/docs/tasks/observability/distributed-tracing/configurability/>Configurability (Beta/Development)</a></li></ul></li><li role=none><a role=treeitem title="This task shows you how to visualize your services within an Istio mesh." href=/v1.8/docs/tasks/observability/kiali/>Visualizing Your Mesh</a></li><li role=none><a role=treeitem title="This task shows you how to configure external access to the set of Istio telemetry addons." href=/v1.8/docs/tasks/observability/gateways/>Remotely Accessing Telemetry Addons</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card94 title="A variety of fully working example uses for Istio that you can experiment with." aria-controls=card94-body><svg class="icon examples"><use xlink:href="/v1.8/img/icons.svg#examples"/></svg>Examples</button><div class=body aria-labelledby=card94 role=region id=card94-body><ul role=tree aria-expanded=true aria-labelledby=card94><li role=none><a role=treeitem title="Deploys a sample application composed of four separate microservices used to demonstrate various Istio features." href=/v1.8/docs/examples/bookinfo/>Bookinfo Application</a></li><li role=treeitem aria-label="Virtual Machines"><button aria-hidden=true></button><a title="Examples that add workloads running on virtual machines to an Istio mesh." href=/v1.8/docs/examples/virtual-machines/>Virtual Machines</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Learn how to add a service running on a virtual machine to your single-network Istio mesh." href=/v1.8/docs/examples/virtual-machines/single-network/>Example Application using Virtual Machines in a Single Network Mesh</a></li><li role=none><a role=treeitem title="Learn how to add a service running on a virtual machine to your multi-network Istio mesh." href=/v1.8/docs/examples/virtual-machines/multi-network/>Virtual Machines in Multi-Network Meshes</a></li><li role=none><a role=treeitem title="Run the Bookinfo application with a MySQL service running on a virtual machine within your mesh." href=/v1.8/docs/examples/virtual-machines/bookinfo/>Bookinfo with a Virtual Machine</a></li></ul></li><li role=treeitem aria-label="Learn Microservices using Kubernetes and Istio"><button aria-hidden=true></button><a title="This modular tutorial provides new users with hands-on experience using Istio for common microservices scenarios, one step at a time." href=/v1.8/docs/examples/microservices-istio/>Learn Microservices using Kubernetes and Istio</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/prereq/>Prerequisites</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/setup-kubernetes-cluster/>Setup a Kubernetes Cluster</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/setup-local-computer/>Setup a Local Computer</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/single/>Run a Microservice Locally</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/package-service/>Run ratings in Docker</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/bookinfo-kubernetes/>Run Bookinfo with Kubernetes</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/production-testing/>Test in production</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/add-new-microservice-version/>Add a new version of reviews</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/add-istio/>Enable Istio on productpage</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/enable-istio-all-microservices/>Enable Istio on all the microservices</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/istio-ingress-gateway/>Configure Istio Ingress Gateway</a></li><li role=none><a role=treeitem href=/v1.8/docs/examples/microservices-istio/logs-istio/>Monitoring with Istio</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card118 title="Concepts, tools, and techniques to deploy and manage an Istio mesh." aria-controls=card118-body><svg class="icon guide"><use xlink:href="/v1.8/img/icons.svg#guide"/></svg>Operations</button><div class=body aria-labelledby=card118 role=region id=card118-body><ul role=tree aria-expanded=true aria-labelledby=card118><li role=treeitem aria-label=Deployment><button aria-hidden=true></button><a title="Requirements, concepts, and considerations for setting up an Istio deployment." href=/v1.8/docs/ops/deployment/>Deployment</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Describes Istio's high-level architecture and design goals." href=/v1.8/docs/ops/deployment/architecture/>Architecture</a></li><li role=none><a role=treeitem title="Describes the options and considerations when configuring your Istio deployment." href=/v1.8/docs/ops/deployment/deployment-models/>Deployment Models</a></li><li role=none><a role=treeitem title="Istio performance and scalability summary." href=/v1.8/docs/ops/deployment/performance-and-scalability/>Performance and Scalability</a></li><li role=none><a role=treeitem title="Requirements of applications deployed in an Istio-enabled cluster." href=/v1.8/docs/ops/deployment/requirements/>Application Requirements</a></li></ul></li><li role=treeitem aria-label=Configuration><button aria-hidden=true></button><a title="Advanced concepts and features for configuring a running Istio mesh." href=/v1.8/docs/ops/configuration/>Configuration</a><ul role=group aria-expanded=false><li role=treeitem aria-label="Mesh Configuration"><button aria-hidden=true></button><a title="Helps you manage the global mesh configuration." href=/v1.8/docs/ops/configuration/mesh/>Mesh Configuration</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Provides a general overview of Istio's use of Kubernetes webhooks and the related issues that can arise." href=/v1.8/docs/ops/configuration/mesh/webhook/>Dynamic Admission Webhooks Overview</a></li><li role=none><a role=treeitem title="Describes how to wait to apply mesh configuration until a resource reaches a given status or readiness." href=/v1.8/docs/ops/configuration/mesh/config-resource-ready/>Wait for Resource Status to Apply Configuration</a></li><li role=none><a role=treeitem title="Describes Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.8/docs/ops/configuration/mesh/injection-concepts/>Automatic Sidecar Injection</a></li><li role=none><a role=treeitem title="Shows how to do health checking for Istio services." href=/v1.8/docs/ops/configuration/mesh/app-health-check/>Health Checking of Istio Services</a></li></ul></li><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Helps you manage the networking aspects of a running mesh." href=/v1.8/docs/ops/configuration/traffic-management/>Traffic Management</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Information on how to specify protocols." href=/v1.8/docs/ops/configuration/traffic-management/protocol-selection/>Protocol Selection</a></li><li role=none><a role=treeitem title="Information on how to enable and understand Locality Load Balancing." href=/v1.8/docs/ops/configuration/traffic-management/locality-load-balancing/>Locality Load Balancing</a></li><li role=none><a role=treeitem title="How to configure TLS settings to secure network traffic." href=/v1.8/docs/ops/configuration/traffic-management/tls-configuration/>TLS Configuration</a></li><li role=none><a role=treeitem title="How to configure gateway network topology." href=/v1.8/docs/ops/configuration/traffic-management/network-topologies/>Configuring Gateway Network Topology [experimental]</a></li></ul></li><li role=treeitem aria-label=Security><button aria-hidden=true></button><a title="Helps you manage the security aspects of a running mesh." href=/v1.8/docs/ops/configuration/security/>Security</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Use hardened container images to reduce Istio's attack surface." href=/v1.8/docs/ops/configuration/security/harden-docker-images/>Harden Docker Container Images</a></li><li role=none><a role=treeitem title="Learn how to extend the lifetime of the Istio self-signed root certificate." href=/v1.8/docs/ops/configuration/security/root-transition/>Extending Self-Signed Certificate Lifetime</a></li></ul></li><li role=treeitem aria-label=Observability><button aria-hidden=true></button><a title="Helps you manage telemetry collection and visualization in a running mesh." href=/v1.8/docs/ops/configuration/telemetry/>Observability</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Fine-grained control of Envoy statistics." href=/v1.8/docs/ops/configuration/telemetry/envoy-stats/>Envoy Statistics</a></li><li role=none><a role=treeitem title="Configure Prometheus to monitor multicluster Istio." href=/v1.8/docs/ops/configuration/telemetry/monitoring-multicluster-prometheus/>Monitoring Multicluster Istio with Prometheus</a></li></ul></li></ul></li><li role=treeitem aria-label="Best Practices"><button aria-hidden=true></button><a title="Best practices for setting up and managing an Istio service mesh." href=/v1.8/docs/ops/best-practices/>Best Practices</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="General best practices when setting up an Istio service mesh." href=/v1.8/docs/ops/best-practices/deployment/>Deployment Best Practices</a></li><li role=none><a role=treeitem title="Configuration best practices to avoid networking or traffic management issues." href=/v1.8/docs/ops/best-practices/traffic-management/>Traffic Management Best Practices</a></li><li role=none><a role=treeitem title="Best practices for securing applications using Istio." href=/v1.8/docs/ops/best-practices/security/>Security Best Practices</a></li><li role=none><a role=treeitem title="Best practices for observing applications using Istio." href=/v1.8/docs/ops/best-practices/observability/>Observability Best Practices</a></li></ul></li><li role=treeitem aria-label="Common Problems"><button aria-hidden=true></button><a title="Describes how to identify and resolve common problems in Istio." href=/v1.8/docs/ops/common-problems/>Common Problems</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Techniques to address common Istio traffic management and network problems." href=/v1.8/docs/ops/common-problems/network-issues/>Traffic Management Problems</a></li><li role=none><a role=treeitem title="Techniques to address common Istio authentication, authorization, and general security-related problems." href=/v1.8/docs/ops/common-problems/security-issues/>Security Problems</a></li><li role=none><a role=treeitem title="Dealing with telemetry collection issues." href=/v1.8/docs/ops/common-problems/observability-issues/>Observability Problems</a></li><li role=none><a role=treeitem title="Resolve common problems with Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.8/docs/ops/common-problems/injection/>Sidecar Injection Problems</a></li><li role=none><a role=treeitem title="Describes how to resolve configuration validation problems." href=/v1.8/docs/ops/common-problems/validation/>Configuration Validation Problems</a></li></ul></li><li role=treeitem aria-label="Diagnostic Tools"><button aria-hidden=true></button><a title="Tools and techniques to help troubleshoot an Istio mesh." href=/v1.8/docs/ops/diagnostic-tools/>Diagnostic Tools</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Istio includes a supplemental tool that provides debugging and diagnosis for Istio service mesh deployments." href=/v1.8/docs/ops/diagnostic-tools/istioctl/>Using the Istioctl Command-line Tool</a></li><li role=none><a role=treeitem title="Describes tools and techniques to diagnose Envoy configuration issues related to traffic management." href=/v1.8/docs/ops/diagnostic-tools/proxy-cmd/>Debugging Envoy and Istiod</a></li><li role=none><a role=treeitem title="Shows you how to use istioctl describe to verify the configurations of a pod in your mesh." href=/v1.8/docs/ops/diagnostic-tools/istioctl-describe/>Understand your Mesh with Istioctl Describe</a></li><li role=none><a role=treeitem title="Shows you how to use istioctl analyze to identify potential issues with your configuration." href=/v1.8/docs/ops/diagnostic-tools/istioctl-analyze/>Diagnose your Configuration with Istioctl Analyze</a></li><li role=none><a role=treeitem title="Describes how to use ControlZ to get insight into a running istiod component." href=/v1.8/docs/ops/diagnostic-tools/controlz/>Istiod Introspection</a></li><li role=none><a role=treeitem title="Describes how to use component-level logging to get insights into a running component's behavior." href=/v1.8/docs/ops/diagnostic-tools/component-logging/>Component Logging</a></li></ul></li><li role=treeitem aria-label=Integrations><button aria-hidden=true></button><a title="Other softwares that Istio can integrate with to provide additional functionality." href=/v1.8/docs/ops/integrations/>Integrations</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Information on how to integrate with cert-manager." href=/v1.8/docs/ops/integrations/certmanager/>cert-manager</a></li><li role=none><a role=treeitem title="Information on how to integrate with Grafana to set up Istio dashboards." href=/v1.8/docs/ops/integrations/grafana/>Grafana</a></li><li role=none><a role=treeitem title="How to integrate with Jaeger." href=/v1.8/docs/ops/integrations/jaeger/>Jaeger</a></li><li role=none><a role=treeitem title="Information on how to integrate with Kiali." href=/v1.8/docs/ops/integrations/kiali/>Kiali</a></li><li role=none><a role=treeitem title="How to integrate with Prometheus." href=/v1.8/docs/ops/integrations/prometheus/>Prometheus</a></li><li role=none><a role=treeitem title="How to integrate with Zipkin." href=/v1.8/docs/ops/integrations/zipkin/>Zipkin</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card169 title="Detailed authoritative reference material such as command-line options, configuration options, and API calling parameters." aria-controls=card169-body><svg class="icon reference"><use xlink:href="/v1.8/img/icons.svg#reference"/></svg>Reference</button><div class="body default" aria-labelledby=card169 role=region id=card169-body><ul role=tree aria-expanded=true aria-labelledby=card169><li role=treeitem aria-label=Configuration><button aria-hidden=true></button><a title="Detailed information on configuration options." href=/v1.8/docs/reference/config/>Configuration</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Configuration affecting Istio control plane installation version and shape." href=/v1.8/docs/reference/config/istio.operator.v1alpha1/>IstioOperator Options</a></li><li role=none><a role=treeitem title="Configuration affecting the service mesh as a whole." href=/v1.8/docs/reference/config/istio.mesh.v1alpha1/>Global Mesh Options</a></li><li role=none><a role=treeitem title="Describes the structure of messages generated by Istio analyzers." href=/v1.8/docs/reference/config/istio.analysis.v1alpha1/>Analysis Messages</a></li><li role=none><a role=treeitem title="Describes the role of the `status` field in configuration workflow." href=/v1.8/docs/reference/config/config-status/>Configuration Status Field</a></li><li role=treeitem aria-label="Proxy Extensions"><button aria-hidden=true></button><a title="Describes how to configure Istio proxy extensions." href=/v1.8/docs/reference/config/proxy_extensions/>Proxy Extensions</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Configuration for Metadata Exchange Filter." href=/v1.8/docs/reference/config/proxy_extensions/metadata_exchange/>Metadata Exchange Config</a></li><li role=none><a role=treeitem title="Configuration for Stackdriver filter." href=/v1.8/docs/reference/config/proxy_extensions/stackdriver/>Stackdriver Config</a></li><li role=none><a role=treeitem title="Configuration for Attribute Generation plugin." href=/v1.8/docs/reference/config/proxy_extensions/attributegen/>AttributeGen Config</a></li><li role=none><a role=treeitem title="Configuration for AccessLogPolicy Filter." href=/v1.8/docs/reference/config/proxy_extensions/accesslogpolicy/>AccessLogPolicy Config</a></li><li role=none><a role=treeitem title="Configuration for Stats Filter." href=/v1.8/docs/reference/config/proxy_extensions/stats/>Stats Config</a></li><li role=none><a role=treeitem title="How to enable telemetry generation with the Wasm runtime (experimental)." href=/v1.8/docs/reference/config/proxy_extensions/wasm_telemetry/>Wasm-based Telemetry (Experimental)</a></li></ul></li><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Describes how to configure HTTP/TCP routing features." href=/v1.8/docs/reference/config/networking/>Traffic Management</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Configuration affecting load balancing, outlier detection, etc." href=/v1.8/docs/reference/config/networking/destination-rule/>Destination Rule</a></li><li role=none><a role=treeitem title="Customizing Envoy configuration generated by Istio." href=/v1.8/docs/reference/config/networking/envoy-filter/>Envoy Filter</a></li><li role=none><a role=treeitem title="Configuration affecting edge load balancer." href=/v1.8/docs/reference/config/networking/gateway/>Gateway</a></li><li role=none><a role=treeitem title="Configuration affecting service registry." href=/v1.8/docs/reference/config/networking/service-entry/>Service Entry</a></li><li role=none><a role=treeitem title="Configuration affecting network reachability of a sidecar." href=/v1.8/docs/reference/config/networking/sidecar/>Sidecar</a></li><li role=none><a role=treeitem title="Describes a collection of workload instances." href=/v1.8/docs/reference/config/networking/workload-group/>Workload Group</a></li><li role=none><a role=treeitem title="Configuration affecting VMs onboarded into the mesh." href=/v1.8/docs/reference/config/networking/workload-entry/>Workload Entry</a></li><li role=none><a role=treeitem title="Configuration affecting label/content routing, sni routing, etc." href=/v1.8/docs/reference/config/networking/virtual-service/>Virtual Service</a></li></ul></li><li role=treeitem aria-label=Security><button aria-hidden=true></button><a title="Describes how to configure Istio's security features." href=/v1.8/docs/reference/config/security/>Security</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Configuration to validate JWT." href=/v1.8/docs/reference/config/security/jwt/>JWTRule</a></li><li role=none><a role=treeitem title="Peer authentication configuration for workloads." href=/v1.8/docs/reference/config/security/peer_authentication/>PeerAuthentication</a></li><li role=none><a role=treeitem title="Request authentication configuration for workloads." href=/v1.8/docs/reference/config/security/request_authentication/>RequestAuthentication</a></li><li role=none><a role=treeitem title="Configuration for access control on workloads." href=/v1.8/docs/reference/config/security/authorization-policy/>Authorization Policy</a></li><li role=none><a role=treeitem title="Describes the supported conditions in authorization policies." href=/v1.8/docs/reference/config/security/conditions/>Authorization Policy Conditions</a></li></ul></li><li role=treeitem aria-label="Common Types"><button aria-hidden=true></button><a title="Describes common types in Istio API." href=/v1.8/docs/reference/config/type/>Common Types</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Definition of a workload selector." href=/v1.8/docs/reference/config/type/workload-selector/>Workload Selector</a></li></ul></li><li role=none><a role=treeitem title="Istio standard metrics exported by Istio telemetry." href=/v1.8/docs/reference/config/metrics/>Istio Standard Metrics</a></li><li role=none><a role=treeitem title="Resource annotations used by Istio." href=/v1.8/docs/reference/config/annotations/>Resource Annotations</a></li><li role=treeitem aria-label="Configuration Analysis Messages"><button aria-hidden=true></button><a title="Documents the individual error and warning messages produced during configuration analysis." href=/v1.8/docs/reference/config/analysis/>Configuration Analysis Messages</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0113/>MTLSPolicyConflict</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0109/>ConflictingMeshGatewayVirtualServiceHosts</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0110/>ConflictingSidecarWorkloadSelectors</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0116/>DeploymentAssociatedToMultipleServices</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0117/>DeploymentRequiresServiceAssociated</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0002/>Deprecated</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0104/>GatewayPortNotOnWorkload</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0001/>InternalError</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0125/>InvalidAnnotation</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0122/>InvalidRegexp</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0105/>IstioProxyImageMismatch</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0119/>JwtFailureDueToInvalidServicePortPrefix</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0107/>MisplacedAnnotation</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0108/>UnknownAnnotation</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0111/>MultipleSidecarsWithoutWorkloadSelectors</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0123/>NamespaceMultipleInjectionLabels</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0102/>NamespaceNotInjected</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0127/>NoMatchingWorkloadsFound</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0128/>NoServerCertificateVerificationDestinationLevel</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0129/>NoServerCertificateVerificationPortLevel</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/message-format/>Analyzer Message Format</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0131/>VirtualServiceIneffectiveMatch</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0118/>PortNameIsNotUnderNamingConvention</a></li><li role=none><a role=treeitem href=/v1.8/docs/reference/config/analysis/ist0101/>ReferencedResourceNotFound</a></li><li role=none><a role=treeitem 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operator." href=/v1.8/docs/reference/commands/operator/>operator</a></li><li role=none><a role=treeitem title="Istio Pilot agent." href=/v1.8/docs/reference/commands/pilot-agent/>pilot-agent</a></li></ul></li><li role=none><a role=treeitem title="A glossary of common Istio terms." href=/v1.8/docs/reference/glossary/>Glossary</a></li></ul></div></div></div></nav></div><div class=article-container><button tabindex=-1 id=sidebar-toggler title="Toggle the navigation bar"><svg class="icon pull"><use xlink:href="/v1.8/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.8/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.8/docs/ title="Learn how to deploy, use, and operate Istio.">Docs</a></li><li><a href=/v1.8/docs/reference/ title="Detailed authoritative reference material such as command-line options, configuration options, and API calling parameters.">Reference</a></li><li><a href=/v1.8/docs/reference/commands/ title="Describes usage and options of the Istio commands and utilities.">Commands</a></li><li>pilot-discovery</li></ol></nav><article aria-labelledby=title><div class=title-area><div style=width:100%><h1 id=title>pilot-discovery</h1><p class=byline><span title="4607 words"><svg class="icon clock"><use xlink:href="/v1.8/img/icons.svg#clock"/></svg><span> </span>22 minute read</span>
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<span> </span>
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<span></span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label="pilot-discovery discovery"><a href=#pilot-discovery-discovery>discovery</a><li role=none aria-label="pilot-discovery request"><a href=#pilot-discovery-request>request</a><li role=none aria-label="pilot-discovery version"><a href=#pilot-discovery-version>version</a><li role=none aria-label="Environment variables"><a href=#envvars>Environment variables</a><li role=none aria-label="Exported metrics"><a href=#metrics>Exported metrics</a></ol><hr></div></nav><p>Istio Pilot provides fleet-wide traffic management capabilities in the Istio Service Mesh.</p><table class=command-flags><thead><tr><th>Flags</th><th>Description</th></tr></thead><tbody><tr><td><code>--ctrlz_address <string></code></td><td>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)</td></tr><tr><td><code>--ctrlz_port <uint16></code></td><td>The IP port to use for the ControlZ introspection facility (default `9876`)</td></tr><tr><td><code>--keepaliveInterval <duration></code></td><td>The time interval if no activity on the connection it pings the peer to see if the transport is alive (default `30s`)</td></tr><tr><td><code>--keepaliveMaxServerConnectionAge <duration></code></td><td>Maximum duration a connection will be kept open on the server before a graceful close. (default `2562047h47m16.854775807s`)</td></tr><tr><td><code>--keepaliveTimeout <duration></code></td><td>After having pinged for keepalive check, the client/server waits for a duration of keepaliveTimeout and if no activity is seen even after that the connection is closed. (default `10s`)</td></tr><tr><td><code>--log_as_json</code></td><td>Whether to format output as JSON or in plain console-friendly format</td></tr><tr><td><code>--log_caller <string></code></td><td>Comma-separated list of scopes for which to include caller information, scopes can be any of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] (default ``)</td></tr><tr><td><code>--log_output_level <string></code></td><td>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)</td></tr><tr><td><code>--log_rotate <string></code></td><td>The path for the optional rotating log file (default ``)</td></tr><tr><td><code>--log_rotate_max_age <int></code></td><td>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)</td></tr><tr><td><code>--log_rotate_max_backups <int></code></td><td>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)</td></tr><tr><td><code>--log_rotate_max_size <int></code></td><td>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)</td></tr><tr><td><code>--log_stacktrace_level <string></code></td><td>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)</td></tr><tr><td><code>--log_target <stringArray></code></td><td>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)</td></tr></tbody></table><h2 id=pilot-discovery-discovery>pilot-discovery discovery</h2><p>Start Istio proxy discovery service.</p><pre class=language-bash><code>pilot-discovery discovery [flags]
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</code></pre><table class=command-flags><thead><tr><th>Flags</th><th>Shorthand</th><th>Description</th></tr></thead><tbody><tr><td><code>--appNamespace <string></code></td><td><code>-a</code></td><td>Specify the applications namespace list the controller manages, separated by comma; if not set, controller watches all namespaces (default ``)</td></tr><tr><td><code>--caCertFile <string></code></td><td></td><td>File containing the x509 Server CA Certificate (default ``)</td></tr><tr><td><code>--clusterID <string></code></td><td></td><td>The ID of the cluster that this Istiod instance resides (default `Kubernetes`)</td></tr><tr><td><code>--clusterRegistriesNamespace <string></code></td><td></td><td>Namespace for ConfigMap which stores clusters configs (default `istio-system`)</td></tr><tr><td><code>--configDir <string></code></td><td></td><td>Directory to watch for updates to config yaml files. If specified, the files will be used as the source of config, rather than a CRD client. (default ``)</td></tr><tr><td><code>--ctrlz_address <string></code></td><td></td><td>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)</td></tr><tr><td><code>--ctrlz_port <uint16></code></td><td></td><td>The IP port to use for the ControlZ introspection facility (default `9876`)</td></tr><tr><td><code>--domain <string></code></td><td></td><td>DNS domain suffix (default `cluster.local`)</td></tr><tr><td><code>--grpcAddr <string></code></td><td></td><td>Discovery service gRPC address (default `:15010`)</td></tr><tr><td><code>--httpAddr <string></code></td><td></td><td>Discovery service HTTP address (default `:8080`)</td></tr><tr><td><code>--httpsAddr <string></code></td><td></td><td>Injection and validation service HTTPS address (default `:15017`)</td></tr><tr><td><code>--keepaliveInterval <duration></code></td><td></td><td>The time interval if no activity on the connection it pings the peer to see if the transport is alive (default `30s`)</td></tr><tr><td><code>--keepaliveMaxServerConnectionAge <duration></code></td><td></td><td>Maximum duration a connection will be kept open on the server before a graceful close. (default `2562047h47m16.854775807s`)</td></tr><tr><td><code>--keepaliveTimeout <duration></code></td><td></td><td>After having pinged for keepalive check, the client/server waits for a duration of keepaliveTimeout and if no activity is seen even after that the connection is closed. (default `10s`)</td></tr><tr><td><code>--kubeconfig <string></code></td><td></td><td>Use a Kubernetes configuration file instead of in-cluster configuration (default ``)</td></tr><tr><td><code>--kubernetesApiBurst <int></code></td><td></td><td>Maximum burst for throttle when communicating with the kubernetes API (default `160`)</td></tr><tr><td><code>--kubernetesApiQPS <float32></code></td><td></td><td>Maximum QPS when communicating with the kubernetes API (default `80`)</td></tr><tr><td><code>--log_as_json</code></td><td></td><td>Whether to format output as JSON or in plain console-friendly format</td></tr><tr><td><code>--log_caller <string></code></td><td></td><td>Comma-separated list of scopes for which to include caller information, scopes can be any of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] (default ``)</td></tr><tr><td><code>--log_output_level <string></code></td><td></td><td>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)</td></tr><tr><td><code>--log_rotate <string></code></td><td></td><td>The path for the optional rotating log file (default ``)</td></tr><tr><td><code>--log_rotate_max_age <int></code></td><td></td><td>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)</td></tr><tr><td><code>--log_rotate_max_backups <int></code></td><td></td><td>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)</td></tr><tr><td><code>--log_rotate_max_size <int></code></td><td></td><td>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)</td></tr><tr><td><code>--log_stacktrace_level <string></code></td><td></td><td>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)</td></tr><tr><td><code>--log_target <stringArray></code></td><td></td><td>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)</td></tr><tr><td><code>--mcpInitialConnWindowSize <int></code></td><td></td><td>Initial connection window size for MCP's gRPC connection (default `1048576`)</td></tr><tr><td><code>--mcpInitialWindowSize <int></code></td><td></td><td>Initial window size for MCP's gRPC connection (default `1048576`)</td></tr><tr><td><code>--mcpMaxMsgSize <int></code></td><td></td><td>Max message size received by MCP's gRPC client (default `4194304`)</td></tr><tr><td><code>--meshConfig <string></code></td><td></td><td>File name for Istio mesh configuration. If not specified, a default mesh will be used. (default `./etc/istio/config/mesh`)</td></tr><tr><td><code>--monitoringAddr <string></code></td><td></td><td>HTTP address to use for pilot's self-monitoring information (default `:15014`)</td></tr><tr><td><code>--namespace <string></code></td><td><code>-n</code></td><td>Select a namespace where the controller resides. If not set, uses ${POD_NAMESPACE} environment variable (default `istio-system`)</td></tr><tr><td><code>--networksConfig <string></code></td><td></td><td>File name for Istio mesh networks configuration. If not specified, a default mesh networks will be used. (default `/etc/istio/config/meshNetworks`)</td></tr><tr><td><code>--plugins <stringSlice></code></td><td></td><td>comma separated list of networking plugins to enable (default `[authn,authz,health]`)</td></tr><tr><td><code>--profile</code></td><td></td><td>Enable profiling via web interface host:port/debug/pprof</td></tr><tr><td><code>--registries <stringSlice></code></td><td></td><td>Comma separated list of platform service registries to read from (choose one or more from {Kubernetes, Mock}) (default `[Kubernetes]`)</td></tr><tr><td><code>--resync <duration></code></td><td></td><td>Controller resync interval (default `1m0s`)</td></tr><tr><td><code>--secureGRPCAddr <string></code></td><td></td><td>Discovery service secured gRPC address (default `:15012`)</td></tr><tr><td><code>--tlsCertFile <string></code></td><td></td><td>File containing the x509 Server Certificate (default ``)</td></tr><tr><td><code>--tlsKeyFile <string></code></td><td></td><td>File containing the x509 private key matching --tlsCertFile (default ``)</td></tr><tr><td><code>--trust-domain <string></code></td><td></td><td>The domain serves to identify the system with spiffe (default ``)</td></tr></tbody></table><h2 id=pilot-discovery-request>pilot-discovery request</h2><p>Makes an HTTP request to Pilot metrics/debug endpoint</p><pre class=language-bash><code>pilot-discovery request <method> <path> [<body>] [flags]
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</code></pre><table class=command-flags><thead><tr><th>Flags</th><th>Description</th></tr></thead><tbody><tr><td><code>--ctrlz_address <string></code></td><td>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)</td></tr><tr><td><code>--ctrlz_port <uint16></code></td><td>The IP port to use for the ControlZ introspection facility (default `9876`)</td></tr><tr><td><code>--keepaliveInterval <duration></code></td><td>The time interval if no activity on the connection it pings the peer to see if the transport is alive (default `30s`)</td></tr><tr><td><code>--keepaliveMaxServerConnectionAge <duration></code></td><td>Maximum duration a connection will be kept open on the server before a graceful close. (default `2562047h47m16.854775807s`)</td></tr><tr><td><code>--keepaliveTimeout <duration></code></td><td>After having pinged for keepalive check, the client/server waits for a duration of keepaliveTimeout and if no activity is seen even after that the connection is closed. (default `10s`)</td></tr><tr><td><code>--log_as_json</code></td><td>Whether to format output as JSON or in plain console-friendly format</td></tr><tr><td><code>--log_caller <string></code></td><td>Comma-separated list of scopes for which to include caller information, scopes can be any of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] (default ``)</td></tr><tr><td><code>--log_output_level <string></code></td><td>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)</td></tr><tr><td><code>--log_rotate <string></code></td><td>The path for the optional rotating log file (default ``)</td></tr><tr><td><code>--log_rotate_max_age <int></code></td><td>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)</td></tr><tr><td><code>--log_rotate_max_backups <int></code></td><td>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)</td></tr><tr><td><code>--log_rotate_max_size <int></code></td><td>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)</td></tr><tr><td><code>--log_stacktrace_level <string></code></td><td>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)</td></tr><tr><td><code>--log_target <stringArray></code></td><td>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)</td></tr></tbody></table><h2 id=pilot-discovery-version>pilot-discovery version</h2><p>Prints out build version information</p><pre class=language-bash><code>pilot-discovery version [flags]
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</code></pre><table class=command-flags><thead><tr><th>Flags</th><th>Shorthand</th><th>Description</th></tr></thead><tbody><tr><td><code>--ctrlz_address <string></code></td><td></td><td>The IP Address to listen on for the ControlZ introspection facility. Use '*' to indicate all addresses. (default `localhost`)</td></tr><tr><td><code>--ctrlz_port <uint16></code></td><td></td><td>The IP port to use for the ControlZ introspection facility (default `9876`)</td></tr><tr><td><code>--keepaliveInterval <duration></code></td><td></td><td>The time interval if no activity on the connection it pings the peer to see if the transport is alive (default `30s`)</td></tr><tr><td><code>--keepaliveMaxServerConnectionAge <duration></code></td><td></td><td>Maximum duration a connection will be kept open on the server before a graceful close. (default `2562047h47m16.854775807s`)</td></tr><tr><td><code>--keepaliveTimeout <duration></code></td><td></td><td>After having pinged for keepalive check, the client/server waits for a duration of keepaliveTimeout and if no activity is seen even after that the connection is closed. (default `10s`)</td></tr><tr><td><code>--log_as_json</code></td><td></td><td>Whether to format output as JSON or in plain console-friendly format</td></tr><tr><td><code>--log_caller <string></code></td><td></td><td>Comma-separated list of scopes for which to include caller information, scopes can be any of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] (default ``)</td></tr><tr><td><code>--log_output_level <string></code></td><td></td><td>Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:info`)</td></tr><tr><td><code>--log_rotate <string></code></td><td></td><td>The path for the optional rotating log file (default ``)</td></tr><tr><td><code>--log_rotate_max_age <int></code></td><td></td><td>The maximum age in days of a log file beyond which the file is rotated (0 indicates no limit) (default `30`)</td></tr><tr><td><code>--log_rotate_max_backups <int></code></td><td></td><td>The maximum number of log file backups to keep before older files are deleted (0 indicates no limit) (default `1000`)</td></tr><tr><td><code>--log_rotate_max_size <int></code></td><td></td><td>The maximum size in megabytes of a log file beyond which the file is rotated (default `104857600`)</td></tr><tr><td><code>--log_stacktrace_level <string></code></td><td></td><td>Comma-separated minimum per-scope logging level at which stack traces are captured, in the form of <scope>:<level>,<scope:level>,... where scope can be one of [ads, adsc, all, analysis, authn, authorization, cache, default, klog, kube, mcp, model, pkica, processing, resource, rootcertrotator, secretcontroller, secretfetcher, serverca, source, spiffe, status, validation, validationController, validationServer, wle] and level can be one of [debug, info, warn, error, fatal, none] (default `default:none`)</td></tr><tr><td><code>--log_target <stringArray></code></td><td></td><td>The set of paths where to output the log. This can be any path as well as the special values stdout and stderr (default `[stdout]`)</td></tr><tr><td><code>--output <string></code></td><td><code>-o</code></td><td>One of 'yaml' or 'json'. (default ``)</td></tr><tr><td><code>--short</code></td><td><code>-s</code></td><td>Use --short=false to generate full version information</td></tr></tbody></table><h2 id=envvars>Environment variables</h2>These environment variables affect the behavior of the <code>pilot-discovery</code> command. Please use with caution as these environment variables are experimental and can change anytime.<table class=envvars><thead><tr><th>Variable Name</th><th>Type</th><th>Default Value</th><th>Description</th></tr></thead><tbody><tr><td><code>AUDIENCE</code></td><td>String</td><td><code></code></td><td>Expected audience in the tokens.</td></tr><tr><td><code>CENTRAL_ISTIOD</code></td><td>Boolean</td><td><code>false</code></td><td>If this is set to true, one Istiod will control remote clusters including CA.</td></tr><tr><td><code>CITADEL_ENABLE_JITTER_FOR_ROOT_CERT_ROTATOR</code></td><td>Boolean</td><td><code>true</code></td><td>If true, set up a jitter to start root cert rotator. Jitter selects a backoff time in seconds to start root cert rotator, and the back off time is below root cert check interval.</td></tr><tr><td><code>CITADEL_SELF_SIGNED_CA_CERT_TTL</code></td><td>Time Duration</td><td><code>87600h0m0s</code></td><td>The TTL of self-signed CA root certificate.</td></tr><tr><td><code>CITADEL_SELF_SIGNED_CA_RSA_KEY_SIZE</code></td><td>Integer</td><td><code>2048</code></td><td>Specify the RSA key size to use for self-signed Istio CA certificates.</td></tr><tr><td><code>CITADEL_SELF_SIGNED_ROOT_CERT_CHECK_INTERVAL</code></td><td>Time Duration</td><td><code>1h0m0s</code></td><td>The interval that self-signed CA checks its root certificate expiration time and rotates root certificate. Setting this interval to zero or a negative value disables automated root cert check and rotation. This interval is suggested to be larger than 10 minutes.</td></tr><tr><td><code>CITADEL_SELF_SIGNED_ROOT_CERT_GRACE_PERIOD_PERCENTILE</code></td><td>Integer</td><td><code>20</code></td><td>Grace period percentile for self-signed root cert.</td></tr><tr><td><code>CLUSTER_ID</code></td><td>String</td><td><code>Kubernetes</code></td><td>Defines the cluster and service registry that this Istiod instance is belongs to</td></tr><tr><td><code>DEFAULT_WORKLOAD_CERT_TTL</code></td><td>Time Duration</td><td><code>24h0m0s</code></td><td>The default TTL of issued workload certificates. Applied when the client sets a non-positive TTL in the CSR.</td></tr><tr><td><code>ENABLE_ADMIN_ENDPOINTS</code></td><td>Boolean</td><td><code>false</code></td><td>If this is set to true, dangerous admin endpoins will be exposed on the debug interface. Not recommended for production.</td></tr><tr><td><code>ENABLE_CA_SERVER</code></td><td>Boolean</td><td><code>true</code></td><td>If this is set to false, will not create CA server in istiod.</td></tr><tr><td><code>ENABLE_DEBUG_ON_HTTP</code></td><td>Boolean</td><td><code>true</code></td><td>If this is set to false, the debug interface will not be ebabled on Http, recommended for production</td></tr><tr><td><code>ENABLE_LEGACY_FSGROUP_INJECTION</code></td><td>Boolean</td><td><code>true</code></td><td>If true, Istiod will set the pod fsGroup to 1337 on injection. This is required for Kubernetes 1.18 and older (see https://github.com/kubernetes/kubernetes/issues/57923 for details) unless JWT_POLICY is "first-party-jwt".</td></tr><tr><td><code>EXTERNAL_CA</code></td><td>String</td><td><code></code></td><td>External CA Integration Type. Permitted Values are ISTIOD_RA_KUBERNETES_API or ISTIOD_RA_ISTIO_API</td></tr><tr><td><code>EXTERNAL_ISTIOD</code></td><td>Boolean</td><td><code>false</code></td><td>If this is set to true, one Istiod will control remote clusters including CA.</td></tr><tr><td><code>INGRESS_GATEWAY_NAMESPACE</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>INJECTION_WEBHOOK_CONFIG_NAME</code></td><td>String</td><td><code>istio-sidecar-injector</code></td><td>Name of the mutatingwebhookconfiguration to patch, if istioctl is not used.</td></tr><tr><td><code>INJECT_ENABLED</code></td><td>Boolean</td><td><code>true</code></td><td>Enable mutating webhook handler.</td></tr><tr><td><code>ISTIOD_CUSTOM_HOST</code></td><td>String</td><td><code></code></td><td>Custom host name of istiod that istiod signs the server cert.</td></tr><tr><td><code>ISTIOD_ENABLE_SDS_SERVER</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, Istiod will serve SDS for credentialName secrets (rather than in-proxy). To ensure proper security, PILOT_ENABLE_XDS_IDENTITY_CHECK=true is required as well.</td></tr><tr><td><code>ISTIO_DEFAULT_REQUEST_TIMEOUT</code></td><td>Time Duration</td><td><code>0s</code></td><td>Default Http and gRPC Request timeout</td></tr><tr><td><code>ISTIO_GPRC_MAXRECVMSGSIZE</code></td><td>Integer</td><td><code>4194304</code></td><td>Sets the max receive buffer size of gRPC stream in bytes.</td></tr><tr><td><code>ISTIO_GPRC_MAXSTREAMS</code></td><td>Integer</td><td><code>100000</code></td><td>Sets the maximum number of concurrent grpc streams.</td></tr><tr><td><code>ISTIO_PROMETHEUS_ANNOTATIONS</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>JWT_POLICY</code></td><td>String</td><td><code>third-party-jwt</code></td><td>The JWT validation policy.</td></tr><tr><td><code>K8S_INGRESS_NS</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>K8S_SIGNER</code></td><td>String</td><td><code></code></td><td>Kubernates CA Signer type. Valid from Kubernates 1.18</td></tr><tr><td><code>KUBERNETES_SERVICE_HOST</code></td><td>String</td><td><code></code></td><td>Kuberenetes service host, set automatically when running in-cluster</td></tr><tr><td><code>MAX_WORKLOAD_CERT_TTL</code></td><td>Time Duration</td><td><code>2160h0m0s</code></td><td>The max TTL of issued workload certificates.</td></tr><tr><td><code>PILOT_ALLOW_METADATA_CERTS_DR_MUTUAL_TLS</code></td><td>Boolean</td><td><code>false</code></td><td>If true, Pilot will allow certs specified in Metadata to override DR certs in MUTUAL TLS mode. This is only enabled for migration and will be removed soon.</td></tr><tr><td><code>PILOT_CERT_PROVIDER</code></td><td>String</td><td><code>istiod</code></td><td>The provider of Pilot DNS certificate.</td></tr><tr><td><code>PILOT_DEBOUNCE_AFTER</code></td><td>Time Duration</td><td><code>100ms</code></td><td>The delay added to config/registry events for debouncing. This will delay the push by at least this internal. If no change is detected within this period, the push will happen, otherwise we'll keep delaying until things settle, up to a max of PILOT_DEBOUNCE_MAX.</td></tr><tr><td><code>PILOT_DEBOUNCE_MAX</code></td><td>Time Duration</td><td><code>10s</code></td><td>The maximum amount of time to wait for events while debouncing. If events keep showing up with no breaks for this time, we'll trigger a push.</td></tr><tr><td><code>PILOT_DISTRIBUTION_HISTORY_RETENTION</code></td><td>Time Duration</td><td><code>1m0s</code></td><td>If enabled, Pilot will keep track of old versions of distributed config for this duration.</td></tr><tr><td><code>PILOT_ENABLED_SERVICE_APIS</code></td><td>Boolean</td><td><code>false</code></td><td>If this is set to true, support for Kubernetes service-apis (github.com/kubernetes-sigs/service-apis) will be enabled. This feature is currently experimental, and is off by default.</td></tr><tr><td><code>PILOT_ENABLE_ANALYSIS</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, pilot will run istio analyzers and write analysis errors to the Status field of any Istio Resources</td></tr><tr><td><code>PILOT_ENABLE_CONFIG_DISTRIBUTION_TRACKING</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, Pilot will assign meaningful nonces to each Envoy configuration message, and allow users to interrogate which envoy has which config from the debug interface.</td></tr><tr><td><code>PILOT_ENABLE_CRD_VALIDATION</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, pilot will validate CRDs while retrieving CRDs from kubernetes cache.Use this flag to enable validation of CRDs in Pilot, especially in deployments that do not have galley installed.</td></tr><tr><td><code>PILOT_ENABLE_EDS_DEBOUNCE</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, Pilot will include EDS pushes in the push debouncing, configured by PILOT_DEBOUNCE_AFTER and PILOT_DEBOUNCE_MAX. EDS pushes may be delayed, but there will be fewer pushes. By default this is enabled</td></tr><tr><td><code>PILOT_ENABLE_EDS_FOR_HEADLESS_SERVICES</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, for headless service in Kubernetes, pilot will send endpoints over EDS, allowing the sidecar to load balance among pods in the headless service. This feature should be enabled if applications access all services explicitly via a HTTP proxy port in the sidecar.</td></tr><tr><td><code>PILOT_ENABLE_HEADLESS_SERVICE_POD_LISTENERS</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, for a headless service/stateful set in Kubernetes, pilot will generate an outbound listener for each pod in a headless service. This feature should be disabled if headless services have a large number of pods.</td></tr><tr><td><code>PILOT_ENABLE_INCREMENTAL_MCP</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, pilot will set the incremental flag of the options in the mcp controller to true, and then galley may push data incrementally, it depends on whether the resource supports incremental. By default, this is false.</td></tr><tr><td><code>PILOT_ENABLE_K8S_SELECT_WORKLOAD_ENTRIES</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, Kubernetes services with selectors will select workload entries with matching labels. It is safe to disable it if you are quite sure you don't need this feature</td></tr><tr><td><code>PILOT_ENABLE_LEGACY_INBOUND_CLUSTER_NAME</code></td><td>Boolean</td><td><code>false</code></td><td>Enable the legacy inbound cluster format (inbound|port|port-name|hostname). This option will be removed soon.</td></tr><tr><td><code>PILOT_ENABLE_LOOP_BLOCKER</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, Envoy will be configured to prevent traffic directly the the inbound/outbound ports (15001/15006). This prevents traffic loops. This option will be removed, and considered always enabled, in 1.9.</td></tr><tr><td><code>PILOT_ENABLE_MYSQL_FILTER</code></td><td>Boolean</td><td><code>false</code></td><td>EnableMysqlFilter enables injection of `envoy.filters.network.mysql_proxy` in the filter chain.</td></tr><tr><td><code>PILOT_ENABLE_PROTOCOL_SNIFFING_FOR_INBOUND</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, protocol sniffing will be used for inbound listeners whose port protocol is not specified or unsupported</td></tr><tr><td><code>PILOT_ENABLE_PROTOCOL_SNIFFING_FOR_OUTBOUND</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, protocol sniffing will be used for outbound listeners whose port protocol is not specified or unsupported</td></tr><tr><td><code>PILOT_ENABLE_REDIS_FILTER</code></td><td>Boolean</td><td><code>false</code></td><td>EnableRedisFilter enables injection of `envoy.filters.network.redis_proxy` in the filter chain.</td></tr><tr><td><code>PILOT_ENABLE_SERVICEENTRY_SELECT_PODS</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, service entries with selectors will select pods from the cluster. It is safe to disable it if you are quite sure you don't need this feature</td></tr><tr><td><code>PILOT_ENABLE_STATUS</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, pilot will update the CRD Status field of all istio resources with reconciliation status.</td></tr><tr><td><code>PILOT_ENABLE_TCP_METADATA_EXCHANGE</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, metadata exchange will be enabled for TCP using ALPN and Network Metadata Exchange filters in Envoy</td></tr><tr><td><code>PILOT_ENABLE_THRIFT_FILTER</code></td><td>Boolean</td><td><code>false</code></td><td>EnableThriftFilter enables injection of `envoy.filters.network.thrift_proxy` in the filter chain.</td></tr><tr><td><code>PILOT_ENABLE_UNSAFE_RUNTIME_ASSERTIONS</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, addition runtime asserts will be performed. These checks are both expensive and panic on failure. As a result, this should be used only for testing.</td></tr><tr><td><code>PILOT_ENABLE_VIRTUAL_SERVICE_DELEGATE</code></td><td>Boolean</td><td><code>true</code></td><td>If set to false, virtualService delegate will not be supported.</td></tr><tr><td><code>PILOT_ENABLE_WORKLOAD_ENTRY_AUTOREGISTRATION</code></td><td>Boolean</td><td><code>false</code></td><td>Enables auto-registering WorkloadEntries based on associated WorkloadGroups upon XDS connection by the workload.</td></tr><tr><td><code>PILOT_ENABLE_XDS_CACHE</code></td><td>Boolean</td><td><code>true</code></td><td>If true, Pilot will cache XDS responses.</td></tr><tr><td><code>PILOT_ENABLE_XDS_IDENTITY_CHECK</code></td><td>Boolean</td><td><code>true</code></td><td>If enabled, pilot will authorize XDS clients, to ensure they are acting only as namespaces they have permissions for.</td></tr><tr><td><code>PILOT_ENDPOINT_TELEMETRY_LABEL</code></td><td>Boolean</td><td><code>false</code></td><td>If true, pilot will add telemetry related metadata to Endpoint resource, which will be consumed by telemetry filter.</td></tr><tr><td><code>PILOT_FILTER_GATEWAY_CLUSTER_CONFIG</code></td><td>Boolean</td><td><code>false</code></td><td></td></tr><tr><td><code>PILOT_HTTP10</code></td><td>Boolean</td><td><code>false</code></td><td>Enables the use of HTTP 1.0 in the outbound HTTP listeners, to support legacy applications.</td></tr><tr><td><code>PILOT_INBOUND_PROTOCOL_DETECTION_TIMEOUT</code></td><td>Time Duration</td><td><code>1s</code></td><td>Protocol detection timeout for inbound listener</td></tr><tr><td><code>PILOT_INITIAL_FETCH_TIMEOUT</code></td><td>Time Duration</td><td><code>0s</code></td><td>Specifies the initial_fetch_timeout for config. If this time is reached without a response to the config requested by Envoy, the Envoy will move on with the init phase. This prevents envoy from getting stuck waiting on config during startup.</td></tr><tr><td><code>PILOT_PUSH_THROTTLE</code></td><td>Integer</td><td><code>100</code></td><td>Limits the number of concurrent pushes allowed. On larger machines this can be increased for faster pushes</td></tr><tr><td><code>PILOT_SCOPE_GATEWAY_TO_NAMESPACE</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, a gateway workload can only select gateway resources in the same namespace. Gateways with same selectors in different namespaces will not be applicable.</td></tr><tr><td><code>PILOT_SIDECAR_ENABLE_INBOUND_TLS_V2</code></td><td>Boolean</td><td><code>true</code></td><td>If true, Pilot will set the TLS version on server side as TLSv1_2 and also enforce strong cipher suites</td></tr><tr><td><code>PILOT_SIDECAR_USE_REMOTE_ADDRESS</code></td><td>Boolean</td><td><code>false</code></td><td>UseRemoteAddress sets useRemoteAddress to true for side car outbound listeners.</td></tr><tr><td><code>PILOT_SKIP_VALIDATE_TRUST_DOMAIN</code></td><td>Boolean</td><td><code>false</code></td><td>Skip validating the peer is from the same trust domain when mTLS is enabled in authentication policy</td></tr><tr><td><code>PILOT_STATUS_BURST</code></td><td>Integer</td><td><code>500</code></td><td>If status is enabled, controls the Burst rate with which status will be updated. See https://godoc.org/k8s.io/client-go/rest#Config Burst</td></tr><tr><td><code>PILOT_STATUS_QPS</code></td><td>Floating-Point</td><td><code>100</code></td><td>If status is enabled, controls the QPS with which status will be updated. See https://godoc.org/k8s.io/client-go/rest#Config QPS</td></tr><tr><td><code>PILOT_TRACE_SAMPLING</code></td><td>Floating-Point</td><td><code>100</code></td><td>Sets the mesh-wide trace sampling percentage. Should be 0.0 - 100.0. Precision to 0.01. Default is 100, not recommended for production use.</td></tr><tr><td><code>PILOT_USE_ENDPOINT_SLICE</code></td><td>Boolean</td><td><code>false</code></td><td>If enabled, Pilot will use EndpointSlices as the source of endpoints for Kubernetes services. By default, this is false, and Endpoints will be used. This requires the Kubernetes EndpointSlice controller to be enabled. Currently this is mutual exclusive - either Endpoints or EndpointSlices will be used</td></tr><tr><td><code>PILOT_WORKLOAD_ENTRY_GRACE_PERIOD</code></td><td>Time Duration</td><td><code>10s</code></td><td>The amount of time an auto-registered workload can remain disconnected from all Pilot instances before the associated WorkloadEntry is cleaned up.</td></tr><tr><td><code>PILOT_XDS_CACHE_SIZE</code></td><td>Integer</td><td><code>20000</code></td><td>The maximum number of cache entries for the XDS cache.</td></tr><tr><td><code>PILOT_XDS_CACHE_STATS</code></td><td>Boolean</td><td><code>false</code></td><td>If true, Pilot will collect metrics for XDS cache efficiency.</td></tr><tr><td><code>PILOT_XDS_SEND_TIMEOUT</code></td><td>Time Duration</td><td><code>5s</code></td><td>The timeout to send the XDS configuration to proxies. After this timeout is reached, Pilot will discard that push.</td></tr><tr><td><code>POD_NAME</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>POD_NAMESPACE</code></td><td>String</td><td><code>istio-system</code></td><td></td></tr><tr><td><code>REQUIRE_3P_TOKEN</code></td><td>Boolean</td><td><code>false</code></td><td>Reject k8s default tokens, without audience. If false, default K8S token will be accepted</td></tr><tr><td><code>REVISION</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>ROOT_CA_DIR</code></td><td>String</td><td><code>./etc/cacerts</code></td><td>Location of a local or mounted CA root</td></tr><tr><td><code>SECRET_WATCHER_RESYNC_PERIOD</code></td><td>String</td><td><code></code></td><td></td></tr><tr><td><code>SPIFFE_BUNDLE_ENDPOINTS</code></td><td>String</td><td><code></code></td><td>The SPIFFE bundle trust domain to endpoint mappings. Istiod retrieves the root certificate from each SPIFFE bundle endpoint and uses it to verify client certifiates from that trust domain. The endpoint must be compliant to the SPIFFE Bundle Endpoint standard. For details, please refer to https://github.com/spiffe/spiffe/blob/master/standards/SPIFFE_Trust_Domain_and_Bundle.md . No need to configure this for root certificates issued via Istiod or web-PKI based root certificates. Use || between <trustdomain, endpoint> tuples. Use | as delimiter between trust domain and endpoint in each tuple. For example: foo|https://url/for/foo||bar|https://url/for/bar</td></tr><tr><td><code>TERMINATION_DRAIN_DURATION_SECONDS</code></td><td>Integer</td><td><code>5</code></td><td>The amount of time allowed for connections to complete on pilot-agent shutdown. On receiving SIGTERM or SIGINT, pilot-agent tells the active Envoy to start draining, preventing any new connections and allowing existing connections to complete. It then sleeps for the TerminationDrainDuration and then kills any remaining active Envoy processes.</td></tr><tr><td><code>TOKEN_AUDIENCES</code></td><td>String</td><td><code>istio-ca</code></td><td>A list of comma separated audiences to check in the JWT token before issuing a certificate. The token is accepted if it matches with one of the audiences</td></tr><tr><td><code>TOKEN_ISSUER</code></td><td>String</td><td><code></code></td><td>OIDC token issuer. If set, will be used to check the tokens.</td></tr><tr><td><code>USE_REMOTE_CERTS</code></td><td>Boolean</td><td><code>false</code></td><td>Whether to try to load CA certs from a remote Kubernetes cluster. Used for external Istiod.</td></tr><tr><td><code>VALIDATION_ENABLED</code></td><td>Boolean</td><td><code>true</code></td><td>Enable config validation handler.</td></tr><tr><td><code>VALIDATION_WEBHOOK_CONFIG_NAME</code></td><td>String</td><td><code>istiod-${namespace}</code></td><td>Name of validatingwebhookconfiguration to patch. Empty will skip using cluster admin to patch.</td></tr><tr><td><code>XDS_AUTH</code></td><td>Boolean</td><td><code>true</code></td><td>If true, will authenticate XDS clients.</td></tr></tbody></table><h2 id=metrics>Exported metrics</h2><table class=metrics><thead><tr><th>Metric Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td><code>citadel_server_authentication_failure_count</code></td><td><code>Sum</code></td><td>The number of authentication failures.</td></tr><tr><td><code>citadel_server_cert_chain_expiry_timestamp</code></td><td><code>LastValue</code></td><td>The unix timestamp, in seconds, when Citadel cert chain will expire. A negative time indicates the cert is expired.</td></tr><tr><td><code>citadel_server_csr_count</code></td><td><code>Sum</code></td><td>The number of CSRs received by Citadel server.</td></tr><tr><td><code>citadel_server_csr_parsing_err_count</code></td><td><code>Sum</code></td><td>The number of errors occurred when parsing the CSR.</td></tr><tr><td><code>citadel_server_csr_sign_err_count</code></td><td><code>Sum</code></td><td>The number of errors occurred when signing the CSR.</td></tr><tr><td><code>citadel_server_id_extraction_err_count</code></td><td><code>Sum</code></td><td>The number of errors occurred when extracting the ID from CSR.</td></tr><tr><td><code>citadel_server_root_cert_expiry_timestamp</code></td><td><code>LastValue</code></td><td>The unix timestamp, in seconds, when Citadel root cert will expire. A negative time indicates the cert is expired.</td></tr><tr><td><code>citadel_server_success_cert_issuance_count</code></td><td><code>Sum</code></td><td>The number of certificates issuances that have succeeded.</td></tr><tr><td><code>endpoint_no_pod</code></td><td><code>LastValue</code></td><td>Endpoints without an associated pod.</td></tr><tr><td><code>galley_runtime_processor_event_span_duration_milliseconds</code></td><td><code>Distribution</code></td><td>The duration between each incoming event</td></tr><tr><td><code>galley_runtime_processor_events_processed_total</code></td><td><code>Count</code></td><td>The number of events that have been processed</td></tr><tr><td><code>galley_runtime_processor_snapshot_events_total</code></td><td><code>Distribution</code></td><td>The number of events per snapshot</td></tr><tr><td><code>galley_runtime_processor_snapshot_lifetime_duration_milliseconds</code></td><td><code>Distribution</code></td><td>The duration of each snapshot</td></tr><tr><td><code>galley_runtime_processor_snapshots_published_total</code></td><td><code>Count</code></td><td>The number of snapshots that have been published</td></tr><tr><td><code>galley_runtime_state_type_instances_total</code></td><td><code>LastValue</code></td><td>The number of type instances per type URL</td></tr><tr><td><code>galley_runtime_strategy_on_change_total</code></td><td><code>Count</code></td><td>The number of times the strategy's onChange has been called</td></tr><tr><td><code>galley_runtime_strategy_timer_max_time_reached_total</code></td><td><code>Count</code></td><td>The number of times the max time has been reached</td></tr><tr><td><code>galley_runtime_strategy_timer_quiesce_reached_total</code></td><td><code>Count</code></td><td>The number of times a quiesce has been reached</td></tr><tr><td><code>galley_runtime_strategy_timer_resets_total</code></td><td><code>Count</code></td><td>The number of times the timer has been reset</td></tr><tr><td><code>galley_source_kube_dynamic_converter_failure_total</code></td><td><code>Count</code></td><td>The number of times a dynamnic kubernetes source failed converting a resources</td></tr><tr><td><code>galley_source_kube_dynamic_converter_success_total</code></td><td><code>Count</code></td><td>The number of times a dynamic kubernetes source successfully converted a resource</td></tr><tr><td><code>galley_source_kube_event_error_total</code></td><td><code>Count</code></td><td>The number of times a kubernetes source encountered errored while handling an event</td></tr><tr><td><code>galley_source_kube_event_success_total</code></td><td><code>Count</code></td><td>The number of times a kubernetes source successfully handled an event</td></tr><tr><td><code>galley_validation_config_delete_error</code></td><td><code>Count</code></td><td>k8s webhook configuration delete error</td></tr><tr><td><code>galley_validation_config_load</code></td><td><code>Count</code></td><td>k8s webhook configuration (re)loads</td></tr><tr><td><code>galley_validation_config_load_error</code></td><td><code>Count</code></td><td>k8s webhook configuration (re)load error</td></tr><tr><td><code>galley_validation_config_update_error</code></td><td><code>Count</code></td><td>k8s webhook configuration update error</td></tr><tr><td><code>galley_validation_config_updates</code></td><td><code>Count</code></td><td>k8s webhook configuration updates</td></tr><tr><td><code>galley_validation_failed</code></td><td><code>Sum</code></td><td>Resource validation failed</td></tr><tr><td><code>galley_validation_http_error</code></td><td><code>Sum</code></td><td>Resource validation http serve errors</td></tr><tr><td><code>galley_validation_passed</code></td><td><code>Sum</code></td><td>Resource is valid</td></tr><tr><td><code>istio_build</code></td><td><code>LastValue</code></td><td>Istio component build info</td></tr><tr><td><code>istio_mcp_clients_total</code></td><td><code>LastValue</code></td><td>The number of streams currently connected.</td></tr><tr><td><code>istio_mcp_message_sizes_bytes</code></td><td><code>Distribution</code></td><td>Size of messages received from clients.</td></tr><tr><td><code>istio_mcp_reconnections</code></td><td><code>Sum</code></td><td>The number of times the sink has reconnected.</td></tr><tr><td><code>istio_mcp_recv_failures_total</code></td><td><code>Sum</code></td><td>The number of recv failures in the source.</td></tr><tr><td><code>istio_mcp_request_acks_total</code></td><td><code>Sum</code></td><td>The number of request acks received by the source.</td></tr><tr><td><code>istio_mcp_request_nacks_total</code></td><td><code>Sum</code></td><td>The number of request nacks received by the source.</td></tr><tr><td><code>istio_mcp_send_failures_total</code></td><td><code>Sum</code></td><td>The number of send failures in the source.</td></tr><tr><td><code>num_failed_outgoing_requests</code></td><td><code>Sum</code></td><td>Number of failed outgoing requests (e.g. to a token exchange server, CA, etc.)</td></tr><tr><td><code>num_outgoing_requests</code></td><td><code>Sum</code></td><td>Number of total outgoing requests (e.g. to a token exchange server, CA, etc.)</td></tr><tr><td><code>num_outgoing_retries</code></td><td><code>Sum</code></td><td>Number of outgoing retry requests (e.g. to a token exchange server, CA, etc.)</td></tr><tr><td><code>outgoing_latency</code></td><td><code>Sum</code></td><td>The latency of outgoing requests (e.g. to a token exchange server, CA, etc.) in milliseconds.</td></tr><tr><td><code>pilot_conflict_inbound_listener</code></td><td><code>LastValue</code></td><td>Number of conflicting inbound listeners.</td></tr><tr><td><code>pilot_conflict_outbound_listener_http_over_current_tcp</code></td><td><code>LastValue</code></td><td>Number of conflicting wildcard http listeners with current wildcard tcp listener.</td></tr><tr><td><code>pilot_conflict_outbound_listener_tcp_over_current_http</code></td><td><code>LastValue</code></td><td>Number of conflicting wildcard tcp listeners with current wildcard http listener.</td></tr><tr><td><code>pilot_conflict_outbound_listener_tcp_over_current_tcp</code></td><td><code>LastValue</code></td><td>Number of conflicting tcp listeners with current tcp listener.</td></tr><tr><td><code>pilot_destrule_subsets</code></td><td><code>LastValue</code></td><td>Duplicate subsets across destination rules for same host</td></tr><tr><td><code>pilot_duplicate_envoy_clusters</code></td><td><code>LastValue</code></td><td>Duplicate envoy clusters caused by service entries with same hostname</td></tr><tr><td><code>pilot_eds_no_instances</code></td><td><code>LastValue</code></td><td>Number of clusters without instances.</td></tr><tr><td><code>pilot_endpoint_not_ready</code></td><td><code>LastValue</code></td><td>Endpoint found in unready state.</td></tr><tr><td><code>pilot_inbound_updates</code></td><td><code>Sum</code></td><td>Total number of updates received by pilot.</td></tr><tr><td><code>pilot_invalid_out_listeners</code></td><td><code>LastValue</code></td><td>Number of invalid outbound listeners.</td></tr><tr><td><code>pilot_jwks_resolver_network_fetch_fail_total</code></td><td><code>Sum</code></td><td>Total number of failed network fetch by pilot jwks resolver</td></tr><tr><td><code>pilot_jwks_resolver_network_fetch_success_total</code></td><td><code>Sum</code></td><td>Total number of successfully network fetch by pilot jwks resolver</td></tr><tr><td><code>pilot_k8s_cfg_events</code></td><td><code>Sum</code></td><td>Events from k8s config.</td></tr><tr><td><code>pilot_k8s_endpoints_pending_pod</code></td><td><code>LastValue</code></td><td>Number of endpoints that do not currently have any corresponding pods.</td></tr><tr><td><code>pilot_k8s_endpoints_with_no_pods</code></td><td><code>Sum</code></td><td>Endpoints that does not have any corresponding pods.</td></tr><tr><td><code>pilot_k8s_object_errors</code></td><td><code>LastValue</code></td><td>Errors converting k8s CRDs</td></tr><tr><td><code>pilot_k8s_reg_events</code></td><td><code>Sum</code></td><td>Events from k8s registry.</td></tr><tr><td><code>pilot_no_ip</code></td><td><code>LastValue</code></td><td>Pods not found in the endpoint table, possibly invalid.</td></tr><tr><td><code>pilot_proxy_convergence_time</code></td><td><code>Distribution</code></td><td>Delay in seconds between config change and a proxy receiving all required configuration.</td></tr><tr><td><code>pilot_proxy_queue_time</code></td><td><code>Distribution</code></td><td>Time in seconds, a proxy is in the push queue before being dequeued.</td></tr><tr><td><code>pilot_push_triggers</code></td><td><code>Sum</code></td><td>Total number of times a push was triggered, labeled by reason for the push.</td></tr><tr><td><code>pilot_services</code></td><td><code>LastValue</code></td><td>Total services known to pilot.</td></tr><tr><td><code>pilot_total_k8s_object_errors</code></td><td><code>Sum</code></td><td>Total Errors converting k8s CRDs</td></tr><tr><td><code>pilot_total_rejected_configs</code></td><td><code>Sum</code></td><td>Total number of configs that Pilot had to reject or ignore.</td></tr><tr><td><code>pilot_total_xds_internal_errors</code></td><td><code>Sum</code></td><td>Total number of internal XDS errors in pilot.</td></tr><tr><td><code>pilot_total_xds_rejects</code></td><td><code>Sum</code></td><td>Total number of XDS responses from pilot rejected by proxy.</td></tr><tr><td><code>pilot_virt_services</code></td><td><code>LastValue</code></td><td>Total virtual services known to pilot.</td></tr><tr><td><code>pilot_vservice_dup_domain</code></td><td><code>LastValue</code></td><td>Virtual services with dup domains.</td></tr><tr><td><code>pilot_xds</code></td><td><code>LastValue</code></td><td>Number of endpoints connected to this pilot using XDS.</td></tr><tr><td><code>pilot_xds_cds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected CDS configs.</td></tr><tr><td><code>pilot_xds_eds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected EDS.</td></tr><tr><td><code>pilot_xds_expired_nonce</code></td><td><code>Sum</code></td><td>Total number of XDS requests with an expired nonce.</td></tr><tr><td><code>pilot_xds_lds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected LDS.</td></tr><tr><td><code>pilot_xds_push_context_errors</code></td><td><code>Sum</code></td><td>Number of errors (timeouts) initiating push context.</td></tr><tr><td><code>pilot_xds_push_time</code></td><td><code>Distribution</code></td><td>Total time in seconds Pilot takes to push lds, rds, cds and eds.</td></tr><tr><td><code>pilot_xds_pushes</code></td><td><code>Sum</code></td><td>Pilot build and send errors for lds, rds, cds and eds.</td></tr><tr><td><code>pilot_xds_rds_reject</code></td><td><code>LastValue</code></td><td>Pilot rejected RDS.</td></tr><tr><td><code>pilot_xds_send_time</code></td><td><code>Distribution</code></td><td>Total time in seconds Pilot takes to send generated configuration.</td></tr><tr><td><code>pilot_xds_write_timeout</code></td><td><code>Sum</code></td><td>Pilot XDS response write timeouts.</td></tr><tr><td><code>scrape_failures_total</code></td><td><code>Sum</code></td><td>The total number of failed scrapes.</td></tr><tr><td><code>scrapes_total</code></td><td><code>Sum</code></td><td>The total number of scrapes.</td></tr><tr><td><code>sidecar_injection_failure_total</code></td><td><code>Sum</code></td><td>Total number of failed sidecar injection requests.</td></tr><tr><td><code>sidecar_injection_requests_total</code></td><td><code>Sum</code></td><td>Total number of sidecar injection requests.</td></tr><tr><td><code>sidecar_injection_skip_total</code></td><td><code>Sum</code></td><td>Total number of skipped sidecar injection requests.</td></tr><tr><td><code>sidecar_injection_success_total</code></td><td><code>Sum</code></td><td>Total number of successful sidecar injection requests.</td></tr><tr><td><code>startup_duration_seconds</code></td><td><code>LastValue</code></td><td>The time from the process starting to being marked ready.</td></tr><tr><td><code>xds_cache_evictions</code></td><td><code>Sum</code></td><td>Total number of xds cache evictions.</td></tr><tr><td><code>xds_cache_reads</code></td><td><code>Sum</code></td><td>Total number of xds cache xdsCacheReads.</td></tr><tr><td><code>xds_cache_size</code></td><td><code>LastValue</code></td><td>Current size of xds cache</td></tr></tbody></table></article><nav 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