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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon"><use xlink:href="/v1.5/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=card24 title="Learn about the different parts of the Istio system and the abstractions it uses." aria-controls=card24-body><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#concepts"/></svg>Concepts</button><div class=body aria-labelledby=card24 role=region id=card24-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card24><li role=none><a role=treeitem title="Introduces Istio, the problems it solves, its high-level architecture, and its design goals." href=/v1.5/docs/concepts/what-is-istio/>What is Istio?</a></li><li role=none><a 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aria-labelledby=card47><li role=none><a role=treeitem title="Try Istio’s features quickly and easily." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/setup/platform-setup/azure/>Azure</a></li><li role=none><a role=treeitem title="Instructions to setup Docker Desktop for Istio." href=/v1.5/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=/v1.5/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=/v1.5/docs/setup/platform-setup/ibm/>IBM Cloud</a></li><li role=none><a role=treeitem title="Instructions to setup kind for Istio." href=/v1.5/docs/setup/platform-setup/kind/>kind</a></li><li role=none><a role=treeitem title="Instructions to setup a Gardener cluster for Istio." href=/v1.5/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=/v1.5/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=/v1.5/docs/setup/platform-setup/microk8s/>MicroK8s</a></li><li role=none><a role=treeitem title="Instructions to setup minikube for Istio." href=/v1.5/docs/setup/platform-setup/minikube/>Minikube</a></li><li role=none><a role=treeitem title="Instructions to setup an OpenShift cluster for Istio." href=/v1.5/docs/setup/platform-setup/openshift/>OpenShift</a></li><li role=none><a role=treeitem title="Instructions to setup an OKE cluster for Istio." href=/v1.5/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=/v1.5/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=/v1.5/docs/setup/install/istioctl/>Customizable Install with Istioctl</a></li><li role=none><a role=treeitem title="Install and configure Istio for in-depth evaluation or production use." href=/v1.5/docs/setup/install/helm/>Customizable Install with Helm</a></li><li role=none><a role=treeitem title="Instructions to install Istio in a Kubernetes cluster using the Istio operator." href=/v1.5/docs/setup/install/standalone-operator/>Standalone Operator Install</a></li><li role=treeitem aria-label="Multicluster Installation"><button aria-hidden=true></button><a title="Configure an Istio mesh spanning multiple Kubernetes clusters." href=/v1.5/docs/setup/install/multicluster/>Multicluster Installation</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Install an Istio mesh across multiple Kubernetes clusters with replicated control plane instances." href=/v1.5/docs/setup/install/multicluster/gateways/>Replicated control planes</a></li><li role=none><a role=treeitem title="Install an Istio mesh across multiple Kubernetes clusters with a shared control plane." href=/v1.5/docs/setup/install/multicluster/shared/>Shared control plane (single and multiple networks)</a></li></ul></li></ul></li><li role=treeitem aria-label=Upgrade><button aria-hidden=true></button><a title="Choose the upgrade guide that corresponds to the approach you previously used to install Istio." href=/v1.5/docs/setup/upgrade/>Upgrade</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Upgrade or downgrade Istio using the istioctl upgrade command." href=/v1.5/docs/setup/upgrade/istioctl-upgrade/>Upgrade Istio using istioctl</a></li><li role=none><a role=treeitem title="Upgrade the Istio control plane, and optionally, the CNI plug-in using Helm." href=/v1.5/docs/setup/upgrade/cni-helm-upgrade/>Upgrade using Helm</a></li></ul></li><li role=treeitem aria-label="More Guides"><button class=show aria-hidden=true></button><a title="More information on additional setup tasks." href=/v1.5/docs/setup/additional-setup/>More Guides</a><ul role=group aria-expanded=true class=leaf-section><li role=none><a role=treeitem title="Describes the built-in Istio installation configuration profiles." href=/v1.5/docs/setup/additional-setup/config-profiles/>Installation Configuration Profiles</a></li><li role=none><span role=treeitem class=current title="Install the Istio sidecar in application pods automatically using the sidecar injector webhook or manually using istioctl CLI.">Installing the Sidecar</span></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=/v1.5/docs/setup/additional-setup/cni/>Install Istio with the Istio CNI plugin</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card77 title="How to do single specific targeted activities with the Istio system." aria-controls=card77-body><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#tasks"/></svg>Tasks</button><div class=body aria-labelledby=card77 role=region id=card77-body><ul role=tree aria-expanded=true aria-labelledby=card77><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Tasks that demonstrate Istio's traffic routing features." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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 using file-mounted certificates." href=/v1.5/docs/tasks/traffic-management/ingress/secure-ingress-mount/>Secure Gateways (File Mount)</a></li><li role=none><a role=treeitem title="Expose a service outside of the service mesh over TLS or mTLS using the secret discovery service (SDS)." href=/v1.5/docs/tasks/traffic-management/ingress/secure-ingress-sds/>Secure Gateways (SDS)</a></li><li role=none><a role=treeitem title="Describes how to configure SNI passthrough for an ingress gateway." href=/v1.5/docs/tasks/traffic-management/ingress/ingress-sni-passthrough/>Ingress Gateway without TLS Termination</a></li><li role=none><a role=treeitem title="Demonstrates how to obtain Let's Encrypt TLS certificates for Kubernetes Ingress automatically using Cert-Manager." href=/v1.5/docs/tasks/traffic-management/ingress/ingress-certmgr/>Kubernetes Ingress with Cert-Manager</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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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." href=/v1.5/docs/tasks/traffic-management/egress/egress-gateway-tls-origination/>Egress Gateways with TLS Origination</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=/v1.5/docs/tasks/traffic-management/egress/wildcard-egress-hosts/>Egress using Wildcard Hosts</a></li><li role=none><a role=treeitem title="Describes how to configure SNI monitoring and apply policies on TLS egress traffic." href=/v1.5/docs/tasks/traffic-management/egress/egress_sni_monitoring_and_policies/>Monitoring and Policies for TLS Egress with Mixer (Deprecated)</a></li><li role=none><a role=treeitem title="Describes how to configure Istio to let applications use an external HTTPS proxy." href=/v1.5/docs/tasks/traffic-management/egress/http-proxy/>Using an External HTTPS Proxy</a></li><li role=none><a role=treeitem title="Shows how to configure Istio for Kubernetes External Services." href=/v1.5/docs/tasks/traffic-management/egress/egress-kubernetes-services/>Kubernetes Services for Egress Traffic</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=/v1.5/docs/tasks/security/>Security</a><ul role=group aria-expanded=false><li role=treeitem aria-label=Authentication><button aria-hidden=true></button><a title="Controlling mutual TLS and end-user authentication for mesh services." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/tasks/security/authorization/authz-td-migration/>Authorization Policy Trust Domain Migration</a></li></ul></li><li role=none><a role=treeitem title="Shows how system administrators can configure Istio's CA with an existing root certificate, signing certificate and key." href=/v1.5/docs/tasks/security/plugin-ca-cert/>Plugging in existing CA Certificates</a></li><li role=none><a role=treeitem title="Shows how to provision and manage DNS certificates in Istio." href=/v1.5/docs/tasks/security/dns-cert/>Istio DNS Certificate Management</a></li></ul></li><li role=treeitem aria-label=Policies><button aria-hidden=true></button><a title="Demonstrates policy enforcement features." href=/v1.5/docs/tasks/policy-enforcement/>Policies</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="This task shows you how to enable Istio policy enforcement." href=/v1.5/docs/tasks/policy-enforcement/enabling-policy/>Enabling Policy Enforcement (Deprecated)</a></li><li role=none><a role=treeitem title="This task shows you how to use Istio to dynamically limit the traffic to a service." href=/v1.5/docs/tasks/policy-enforcement/rate-limiting/>Enabling Rate Limits (Deprecated)</a></li><li role=none><a role=treeitem title="Shows how to control access to a service using simple denials or white/black listing." href=/v1.5/docs/tasks/policy-enforcement/denial-and-list/>Denials and White/Black Listing (Deprecated)</a></li><li role=none><a role=treeitem title="Shows how to modify request headers and routing using policy adapters." href=/v1.5/docs/tasks/policy-enforcement/control-headers/>Control Headers and Routing (Deprecated)</a></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=/v1.5/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=/v1.5/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=/v1.5/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 query for Istio Metrics using Prometheus." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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 Jaeger." href=/v1.5/docs/tasks/observability/distributed-tracing/jaeger/>Jaeger</a></li><li role=none><a role=treeitem title="Learn how to configure the proxies to send tracing requests to Zipkin." href=/v1.5/docs/tasks/observability/distributed-tracing/zipkin/>Zipkin</a></li><li role=none><a role=treeitem title="How to configure the proxies to send tracing requests to LightStep." href=/v1.5/docs/tasks/observability/distributed-tracing/lightstep/>LightStep</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=/v1.5/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=/v1.5/docs/tasks/observability/gateways/>Remotely Accessing Telemetry Addons</a></li><li role=treeitem aria-label="Using Mixer for Telemetry (deprecated)"><button aria-hidden=true></button><a title="Demonstrates how to collect telemetry information from the mesh using Mixer." href=/v1.5/docs/tasks/observability/mixer/>Using Mixer for Telemetry (deprecated)</a><ul role=group aria-expanded=false><li role=treeitem aria-label=Metrics><button aria-hidden=true></button><a title="Demonstrates the configuration, collection, and processing of Istio mesh metrics using Mixer." href=/v1.5/docs/tasks/observability/mixer/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's Mixer to collect and customize metrics." href=/v1.5/docs/tasks/observability/mixer/metrics/collecting-metrics/>Collecting Metrics With Mixer</a></li><li role=none><a role=treeitem title="This task shows you how to configure Istio's Mixer to collect metrics for TCP services." href=/v1.5/docs/tasks/observability/mixer/metrics/tcp-metrics/>Collecting Metrics for TCP services with Mixer</a></li></ul></li><li role=treeitem aria-label=Logs><button aria-hidden=true></button><a title="Demonstrates the configuration, collection, and processing of Istio mesh logs." href=/v1.5/docs/tasks/observability/mixer/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 Istio's Mixer to collect and customize logs." href=/v1.5/docs/tasks/observability/mixer/logs/collecting-logs/>Collecting Logs with Mixer</a></li><li role=none><a role=treeitem title="This task shows you how to configure Istio's Mixer to log to a Fluentd daemon." href=/v1.5/docs/tasks/observability/mixer/logs/fluentd/>Logging with Mixer and Fluentd</a></li></ul></li></ul></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card92 title="A variety of fully working example uses for Istio that you can experiment with." aria-controls=card92-body><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#examples"/></svg>Examples</button><div class=body aria-labelledby=card92 role=region id=card92-body><ul role=tree aria-expanded=true aria-labelledby=card92><li role=none><a role=treeitem title="Deploys a sample application composed of four separate microservices used to demonstrate various Istio features." href=/v1.5/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=/v1.5/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=/v1.5/docs/examples/virtual-machines/single-network/>Virtual Machines in Single-Network Meshes</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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/examples/microservices-istio/prereq/>Prerequisites</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/setup-kubernetes-cluster/>Setup a Kubernetes Cluster</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/setup-local-computer/>Setup a Local Computer</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/single/>Run a Microservice Locally</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/package-service/>Run ratings in Docker</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/bookinfo-kubernetes/>Run Bookinfo with Kubernetes</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/production-testing/>Test in production</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/add-new-microservice-version/>Add a new version of reviews</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/add-istio/>Enable Istio on productpage</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/enable-istio-all-microservices/>Enable Istio on all the microservices</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/istio-ingress-gateway/>Configure Istio Ingress Gateway</a></li><li role=none><a role=treeitem href=/v1.5/docs/examples/microservices-istio/logs-istio/>Monitoring with Istio</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card113 title="Concepts, tools, and techniques to deploy and manage an Istio mesh." aria-controls=card113-body><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#guide"/></svg>Operations</button><div class=body aria-labelledby=card113 role=region id=card113-body><ul role=tree aria-expanded=true aria-labelledby=card113><li role=treeitem aria-label=Deployment><button aria-hidden=true></button><a title="Requirements, concepts, and considerations for setting up an Istio deployment." href=/v1.5/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=/v1.5/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=/v1.5/docs/ops/deployment/deployment-models/>Deployment Models</a></li><li role=none><a role=treeitem title="Istio performance and scalability summary." href=/v1.5/docs/ops/deployment/performance-and-scalability/>Performance and Scalability</a></li><li role=none><a role=treeitem title="Prepare your Kubernetes pods and services to run in an Istio-enabled cluster." href=/v1.5/docs/ops/deployment/requirements/>Pods and Services</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=/v1.5/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=/v1.5/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=/v1.5/docs/ops/configuration/mesh/webhook/>Dynamic Admission Webhooks Overview</a></li><li role=none><a role=treeitem title="Describes Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.5/docs/ops/configuration/mesh/injection-concepts/>Automatic Sidecar Injection</a></li><li role=none><a role=treeitem title="Describes how Citadel determines whether to create service account secrets." href=/v1.5/docs/ops/configuration/mesh/secret-creation/>Service Account Secret Creation</a></li><li role=none><a role=treeitem title="Shows how to do health checking for Istio services." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/ops/configuration/traffic-management/locality-load-balancing/>Locality Load Balancing</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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/ops/configuration/telemetry/envoy-stats/>Envoy Statistics</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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/docs/ops/common-problems/security-issues/>Security Problems</a></li><li role=none><a role=treeitem title="Dealing with telemetry collection issues." href=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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=/v1.5/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 individual running components." href=/v1.5/docs/ops/diagnostic-tools/controlz/>Component 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=/v1.5/docs/ops/diagnostic-tools/component-logging/>Component Logging</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card161 title="Detailed authoritative reference material such as command-line options, configuration options, and API calling parameters." aria-controls=card161-body><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#reference"/></svg>Reference</button><div class=body aria-labelledby=card161 role=region id=card161-body><ul role=tree aria-expanded=true aria-labelledby=card161><li role=treeitem aria-label=Configuration><button aria-hidden=true></button><a title="Detailed information on configuration options." href=/v1.5/docs/reference/config/>Configuration</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Describes the options available when installing Istio using Helm charts." href=/v1.5/docs/reference/config/installation-options/>Installation Options (Helm)</a></li><li role=none><a role=treeitem title="Configuration affecting the service mesh as a whole." href=/v1.5/docs/reference/config/istio.mesh.v1alpha1/>Global Mesh Options</a></li><li role=none><a role=treeitem title="Configuration affecting Istio control plane installation version and shape." href=/v1.5/docs/reference/config/istio.operator.v1alpha1/>IstioOperator Options</a></li><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Describes how to configure HTTP/TCP routing features." href=/v1.5/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=/v1.5/docs/reference/config/networking/destination-rule/>Destination Rule</a></li><li role=none><a role=treeitem title="Customizing Envoy configuration generated by Istio." href=/v1.5/docs/reference/config/networking/envoy-filter/>Envoy Filter</a></li><li role=none><a role=treeitem title="Configuration affecting edge load balancer." href=/v1.5/docs/reference/config/networking/gateway/>Gateway</a></li><li role=none><a role=treeitem title="Configuration affecting label/content routing, sni routing, etc." href=/v1.5/docs/reference/config/networking/virtual-service/>Virtual Service</a></li><li role=none><a role=treeitem title="Configuration affecting network reachability of a sidecar." href=/v1.5/docs/reference/config/networking/sidecar/>Sidecar</a></li><li role=none><a role=treeitem title="Configuration affecting service registry." href=/v1.5/docs/reference/config/networking/service-entry/>Service Entry</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=/v1.5/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=/v1.5/docs/reference/config/security/jwt/>JWTRule</a></li><li role=none><a role=treeitem title="Request authentication configuration for workloads." href=/v1.5/docs/reference/config/security/request_authentication/>RequestAuthentication</a></li><li role=none><a role=treeitem title="Peer authentication configuration for workloads." href=/v1.5/docs/reference/config/security/peer_authentication/>PeerAuthentication</a></li><li role=none><a role=treeitem title="Authentication policy for Istio services." href=/v1.5/docs/reference/config/security/istio.authentication.v1alpha1/>Authentication Policy</a></li><li role=none><a role=treeitem title="Configuration for access control on workloads." href=/v1.5/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=/v1.5/docs/reference/config/security/conditions/>Authorization Policy Conditions</a></li><li role=none><a role=treeitem title="Configuration for Role Based Access Control." href=/v1.5/docs/reference/config/security/istio.rbac.v1alpha1/>RBAC (deprecated)</a></li><li role=none><a role=treeitem title="Describes the supported constraints and properties." href=/v1.5/docs/reference/config/security/constraints-and-properties/>RBAC Constraints and Properties (deprecated)</a></li></ul></li><li role=treeitem aria-label="Telemetry V2"><button aria-hidden=true></button><a title="Describes how to configure Istio telemetry V2." href=/v1.5/docs/reference/config/telemetry/>Telemetry V2</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Istio standard metrics exported by Istio telemetry." href=/v1.5/docs/reference/config/telemetry/metrics/>Istio Standard Metrics</a></li><li role=none><a role=treeitem title="How to configure v2 metrics (experimental)." href=/v1.5/docs/reference/config/telemetry/configurable_metrics/>Configurable Metrics (Experimental)</a></li><li role=none><a role=treeitem title="How to enable Telemetry V2 with Wasm runtime (experimental)." href=/v1.5/docs/reference/config/telemetry/telemetry_v2_with_wasm/>Telemetry V2 with Wasm runtime (Experimental)</a></li></ul></li><li role=none><a role=treeitem title="Resource annotations used by Istio." href=/v1.5/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 configurarion analysis." href=/v1.5/docs/reference/config/analysis/>Configuration Analysis Messages</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/message-format/>Analyzer Message Format</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0109/>ConflictingMeshGatewayVirtualServiceHosts</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0110/>ConflictingSidecarWorkloadSelectors</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0002/>Deprecated</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0107/>MisplacedAnnotation</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0104/>GatewayPortNotOnWorkload</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0001/>InternalError</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0105/>IstioProxyImageMismatch</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0119/>JwtFailureDueToInvalidServicePortPrefix</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0113/>MTLSPolicyConflict</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0111/>MultipleSidecarsWithoutWorkloadSelectors</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0102/>NamespaceNotInjected</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0112/>VirtualServiceDestinationPortSelectorRequired</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0108/>UnknownAnnotation</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0106/>SchemaValidationError</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0101/>ReferencedResourceNotFound</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0118/>PortNameIsNotUnderNamingConvention</a></li><li role=none><a role=treeitem href=/v1.5/docs/reference/config/analysis/ist0103/>PodMissingProxy</a></li></ul></li><li role=treeitem aria-label="Mixer Policies and Telemetry (Deprecated)"><button aria-hidden=true></button><a title="Describes how to configure Mixer's policy and telemetry features." href=/v1.5/docs/reference/config/policy-and-telemetry/>Mixer Policies and Telemetry (Deprecated)</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Configuration state for the Mixer client library." href=/v1.5/docs/reference/config/policy-and-telemetry/istio.mixer.v1.config.client/>Mixer Client</a></li><li role=none><a role=treeitem title="Describes the rules used to configure Mixer's policy and telemetry features." href=/v1.5/docs/reference/config/policy-and-telemetry/istio.policy.v1beta1/>Rules</a></li><li role=none><a role=treeitem title="Describes the configuration model for Istio's policy enforcement and telemetry mechanisms." href=/v1.5/docs/reference/config/policy-and-telemetry/mixer-overview/>Mixer Configuration Model (Deprecated)</a></li><li role=none><a role=treeitem title="Describes the base attribute vocabulary used for policy and control." href=/v1.5/docs/reference/config/policy-and-telemetry/attribute-vocabulary/>Attribute Vocabulary (Deprecated)</a></li><li role=none><a role=treeitem title="Mixer configuration expression language reference." href=/v1.5/docs/reference/config/policy-and-telemetry/expression-language/>Expression Language</a></li><li role=treeitem aria-label="Mixer Adapters (Deprecated)"><button aria-hidden=true></button><a title="Mixer adapters allow Istio to interface to a variety of infrastructure backends for such things as metrics and logs." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/>Mixer Adapters (Deprecated)</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Adapter to deliver metrics to Apache SkyWalking." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/apache-skywalking/>Apache SkyWalking</a></li><li role=none><a role=treeitem title="Adapter for Apigee's distributed policy checks and analytics." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/apigee/>Apigee</a></li><li role=none><a role=treeitem title="Adapter to enforce authentication and authorization policies for web apps and APIs." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/app-identity-access-adapter/>App Identity and Access</a></li><li role=none><a role=treeitem title="Adapter for circonus.com's monitoring solution." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/circonus/>Circonus</a></li><li role=none><a role=treeitem title="Adapter for cloudmonitor metrics." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/cloudmonitor/>CloudMonitor</a></li><li role=none><a role=treeitem title="Adapter for cloudwatch metrics." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/cloudwatch/>CloudWatch</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to a dogstatsd agent for delivery to DataDog." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/datadog/>Datadog</a></li><li role=none><a role=treeitem title="Adapter to deliver tracing data to Zipkin." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/zipkin/>Zipkin</a></li><li role=none><a role=treeitem title="Adapter that always returns a precondition denial." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/denier/>Denier</a></li><li role=none><a role=treeitem title="An Istio Mixer adapter to send telemetry data to New Relic." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/newrelic/>New Relic</a></li><li role=none><a role=treeitem title="Adapter that delivers logs to a Fluentd daemon." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/fluentd/>Fluentd</a></li><li role=none><a role=treeitem title="Adapter that extracts information from a Kubernetes environment." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/kubernetesenv/>Kubernetes Env</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to Layer5." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/layer5/>Layer5</a></li><li role=none><a role=treeitem title="Adapter that performs whitelist or blacklist checks." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/list/>List</a></li><li role=none><a role=treeitem title="Adapter for a simple in-memory quota management system." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/memquota/>Memory quota</a></li><li role=none><a role=treeitem title="Adapter that implements an Open Policy Agent engine." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/opa/>OPA</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to Wavefront by VMware." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/wavefront/>Wavefront by VMware</a></li><li role=none><a role=treeitem title="Adapter to locally output logs and metrics." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/stdio/>Stdio</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to a StatsD backend." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/statsd/>StatsD</a></li><li role=none><a role=treeitem title="Adapter to deliver logs, metrics, and traces to Stackdriver." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/stackdriver/>Stackdriver</a></li><li role=none><a role=treeitem title="Adapter to deliver logs and metrics to Papertrail and AppOptics backends." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/solarwinds/>SolarWinds</a></li><li role=none><a role=treeitem title="Adapter for a Redis-based quota management system." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/redisquota/>Redis Quota</a></li><li role=none><a role=treeitem title="Adapter that exposes Istio metrics for ingestion by a Prometheus harvester." href=/v1.5/docs/reference/config/policy-and-telemetry/adapters/prometheus/>Prometheus</a></li></ul></li><li role=none><a role=treeitem title="Default Metrics exported from Istio through Mixer." href=/v1.5/docs/reference/config/policy-and-telemetry/metrics/>Default Metrics</a></li><li role=treeitem aria-label=Templates><button aria-hidden=true></button><a title="Mixer templates are used to send data to individual adapters." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/>Templates</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="A template that represents a single API key." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/apikey/>API Key</a></li><li role=none><a role=treeitem title="A template used to represent an access control query." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/authorization/>Authorization</a></li><li role=none><a role=treeitem title="A template that carries no data, useful for testing." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/checknothing/>Check Nothing</a></li><li role=none><a role=treeitem title="A template that is used to control the production of Kubernetes-specific attributes." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/kubernetes/>Kubernetes</a></li><li role=none><a role=treeitem title="A template designed to let you perform list checking operations." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/listentry/>List Entry</a></li><li role=none><a role=treeitem title="A template that represents a single runtime log entry." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/logentry/>Log Entry</a></li><li role=none><a role=treeitem title="A template that represents a single runtime metric." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/metric/>Metric</a></li><li role=none><a role=treeitem title="The Analytics template is used to dispatch runtime telemetry to Apigee." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/analytics/>Analytics</a></li><li role=none><a role=treeitem title="A template that represents an individual span within a distributed trace." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/tracespan/>Trace Span</a></li><li role=none><a role=treeitem title="A template that carries no data, useful for testing." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/reportnothing/>Report Nothing</a></li><li role=none><a role=treeitem title="A template that represents a quota allocation request." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/quota/>Quota</a></li><li role=none><a role=treeitem title="A template designed to report observed communication edges between workloads." href=/v1.5/docs/reference/config/policy-and-telemetry/templates/edge/>Edge</a></li></ul></li></ul></li></ul></li><li role=treeitem aria-label=Commands><button aria-hidden=true></button><a title="Describes usage and options of the Istio commands and utilities." href=/v1.5/docs/reference/commands/>Commands</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Galley provides configuration management services for Istio." href=/v1.5/docs/reference/commands/galley/>galley</a></li><li role=none><a role=treeitem title="Istio Certificate Authority (CA)." href=/v1.5/docs/reference/commands/istio_ca/>istio_ca</a></li><li role=none><a role=treeitem title="Istio control interface." href=/v1.5/docs/reference/commands/istioctl/>istioctl</a></li><li role=none><a role=treeitem title="Mixer is Istio's abstraction on top of infrastructure backends." href=/v1.5/docs/reference/commands/mixs/>mixs</a></li><li role=none><a role=treeitem title="Kubernetes webhook for automatic Istio sidecar injection." href=/v1.5/docs/reference/commands/sidecar-injector/>sidecar-injector</a></li><li role=none><a role=treeitem title="Istio Pilot." href=/v1.5/docs/reference/commands/pilot-discovery/>pilot-discovery</a></li><li role=none><a role=treeitem title="Istio Pilot agent." href=/v1.5/docs/reference/commands/pilot-agent/>pilot-agent</a></li><li role=none><a role=treeitem title="The Istio operator." href=/v1.5/docs/reference/commands/operator/>operator</a></li><li role=none><a role=treeitem title="Istio security per-node agent." href=/v1.5/docs/reference/commands/node_agent/>node_agent</a></li></ul></li><li role=none><a role=treeitem title="A glossary of common Istio terms." href=/v1.5/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"><use xlink:href="/v1.5/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.5/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.5/docs/ title="Learn how to deploy, use, and operate Istio.">Docs</a></li><li><a href=/v1.5/docs/setup/ title="Instructions for installing the Istio control plane on Kubernetes.">Setup</a></li><li><a href=/v1.5/docs/setup/additional-setup/ title="More information on additional setup tasks.">More Guides</a></li><li>Installing the Sidecar</li></ol></nav><article aria-labelledby=title><div class=title-area><div style=width:100%><h1 id=title>Installing the Sidecar</h1><p class=byline><span title="1512 words"><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#clock"/></svg><span>&nbsp;</span>8 minute read</span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=Injection><a href=#injection>Injection</a><ol><li role=none aria-label="Manual sidecar injection"><a href=#manual-sidecar-injection>Manual sidecar injection</a><li role=none aria-label="Automatic sidecar injection"><a href=#automatic-sidecar-injection>Automatic sidecar injection</a><ol><li role=none aria-label="Disabling or updating the webhook"><a href=#disabling-or-updating-the-webhook>Disabling or updating the webhook</a><li role=none aria-label="Deploying an app"><a href=#deploying-an-app>Deploying an app</a><li role=none aria-label="Understanding what happened"><a href=#understanding-what-happened>Understanding what happened</a><ol><li role=none aria-label=policy><a href=#policy><em><strong>policy</strong></em></a><li role=none aria-label=template><a href=#template><em><strong>template</strong></em></a></ol></li><li role=none aria-label="More control: adding exceptions"><a href=#more-control-adding-exceptions>More control: adding exceptions</a><li role=none aria-label="Uninstalling the automatic sidecar injector"><a href=#uninstalling-the-automatic-sidecar-injector>Uninstalling the automatic sidecar injector</a></ol></li></ol></li><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><h2 id=injection>Injection</h2><p>In order to take advantage of all of Istio&rsquo;s features, pods in the mesh must be running an Istio sidecar proxy.</p><p>The following sections describe two
ways of injecting the Istio sidecar into a pod: manually using the <a href=/v1.5/docs/reference/commands/istioctl><code>istioctl</code></a>
command or by enabling automatic Istio sidecar injection in the pod&rsquo;s namespace.</p><p>Manual injection directly modifies configuration, like deployments, and injects the proxy configuration into it.</p><p>When enabled in a pod&rsquo;s namespace, automatic injection injects the proxy configuration at pod creation time using an admission controller.</p><p>Injection occurs by applying a template defined in the <code>istio-sidecar-injector</code> ConfigMap.</p><h3 id=manual-sidecar-injection>Manual sidecar injection</h3><p>To manually inject a deployment, use <a href=/v1.5/docs/reference/commands/istioctl/#istioctl-kube-inject><code>istioctl kube-inject</code></a>:</p><div><a data-skipendnotes=true style=display:none href=https://raw.githubusercontent.com/istio/istio/release-1.5/samples/sleep/sleep.yaml>Zip</a><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ istioctl kube-inject -f @samples/sleep/sleep.yaml@ | kubectl apply -f -
</code></pre></div><p>By default, this will use the in-cluster configuration. Alternatively, injection can be done using local copies of the configuration.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl -n istio-system get configmap istio-sidecar-injector -o=jsonpath=&#39;{.data.config}&#39; &gt; inject-config.yaml
$ kubectl -n istio-system get configmap istio-sidecar-injector -o=jsonpath=&#39;{.data.values}&#39; &gt; inject-values.yaml
$ kubectl -n istio-system get configmap istio -o=jsonpath=&#39;{.data.mesh}&#39; &gt; mesh-config.yaml
</code></pre><p>Run <code>kube-inject</code> over the input file and deploy.</p><div><a data-skipendnotes=true style=display:none href=https://raw.githubusercontent.com/istio/istio/release-1.5/samples/sleep/sleep.yaml>Zip</a><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ istioctl kube-inject \
--injectConfigFile inject-config.yaml \
--meshConfigFile mesh-config.yaml \
--valuesFile inject-values.yaml \
--filename @samples/sleep/sleep.yaml@ \
| kubectl apply -f -
</code></pre></div><p>Verify that the sidecar has been injected into the sleep pod with <code>2/2</code> under the READY column.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl get pod -l app=sleep
NAME READY STATUS RESTARTS AGE
sleep-64c6f57bc8-f5n4x 2/2 Running 0 24s
</code></pre><h3 id=automatic-sidecar-injection>Automatic sidecar injection</h3><p>Sidecars can be automatically added to applicable Kubernetes pods using a
<a href=https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/>mutating webhook admission controller</a> provided by Istio.</p><div><aside class="callout tip"><div class=type><svg class="large-icon"><use xlink:href="/v1.5/img/icons.svg#callout-tip"/></svg></div><div class=content>While admission controllers are enabled by default, some Kubernetes distributions may disable them. If this is the case, follow the instructions to <a href=https://kubernetes.io/docs/reference/access-authn-authz/admission-controllers/#how-do-i-turn-on-an-admission-controller>turn on admission controllers</a>.</div></aside></div><p>When you set the <code>istio-injection=enabled</code> label on a namespace and the injection webhook is enabled, any new pods that are created in that namespace will automatically have a sidecar added to them.</p><p>Note that unlike manual injection, automatic injection occurs at the pod-level. You won&rsquo;t see any change to the deployment itself. Instead you&rsquo;ll want to check individual pods (via <code>kubectl describe</code>) to see the injected proxy.</p><h4 id=disabling-or-updating-the-webhook>Disabling or updating the webhook</h4><p>The sidecar injecting webhook is enabled by default. If you wish to disable the webhook, you can
use <a href=/v1.5/docs/setup/install/helm/>Helm</a> to set option <code>sidecarInjectorWebhook.enabled</code> to <code>false</code>.</p><p>There are also a <a href=/v1.5/docs/reference/config/installation-options/#sidecarinjectorwebhook-options>variety of other options</a> that can be configured.</p><h4 id=deploying-an-app>Deploying an app</h4><p>Deploy sleep app. Verify both deployment and pod have a single container.</p><div><a data-skipendnotes=true style=display:none href=https://raw.githubusercontent.com/istio/istio/release-1.5/samples/sleep/sleep.yaml>Zip</a><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl apply -f @samples/sleep/sleep.yaml@
$ kubectl get deployment -o wide
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE CONTAINERS IMAGES SELECTOR
sleep 1 1 1 1 12m sleep tutum/curl app=sleep
</code></pre></div><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl get pod
NAME READY STATUS RESTARTS AGE
sleep-776b7bcdcd-7hpnk 1/1 Running 0 4
</code></pre><p>Label the <code>default</code> namespace with <code>istio-injection=enabled</code></p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl label namespace default istio-injection=enabled
$ kubectl get namespace -L istio-injection
NAME STATUS AGE ISTIO-INJECTION
default Active 1h enabled
istio-system Active 1h
kube-public Active 1h
kube-system Active 1h
</code></pre><p>Injection occurs at pod creation time. Kill the running pod and verify a new pod is created with the injected sidecar. The original pod has 1/1 READY containers and the pod with injected sidecar has 2/2 READY containers.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl delete pod -l app=sleep
$ kubectl get pod -l app=sleep
NAME READY STATUS RESTARTS AGE
sleep-776b7bcdcd-7hpnk 1/1 Terminating 0 1m
sleep-776b7bcdcd-bhn9m 2/2 Running 0 7s
</code></pre><p>View detailed state of the injected pod. You should see the injected <code>istio-proxy</code> container and corresponding volumes. Be sure to substitute the correct name for the <code>Running</code> pod below.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl describe pod -l app=sleep
</code></pre><p>Disable injection for the <code>default</code> namespace and verify new pods are created without the sidecar.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl label namespace default istio-injection-
$ kubectl delete pod -l app=sleep
$ kubectl get pod
NAME READY STATUS RESTARTS AGE
sleep-776b7bcdcd-bhn9m 2/2 Terminating 0 2m
sleep-776b7bcdcd-gmvnr 1/1 Running 0 2s
</code></pre><h4 id=understanding-what-happened>Understanding what happened</h4><p>When Kubernetes invokes the webhook, the <a href=https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.10/#mutatingwebhookconfiguration-v1beta1-admissionregistration-k8s-io><code>admissionregistration.k8s.io/v1beta1#MutatingWebhookConfiguration</code></a>
configuration is applied. The default configuration injects the sidecar into
pods in any namespace with the <code>istio-injection=enabled label</code>. The
<code>istio-sidecar-injector</code> configuration map specifies the configuration for the
injected sidecar. To change how namespaces are selected for injection, you can
edit the <code>MutatingWebhookConfiguration</code> with the following command:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl edit mutatingwebhookconfiguration istio-sidecar-injector
</code></pre><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.5/img/icons.svg#callout-warning"/></svg></div><div class=content>You should restart the sidecar injector pod(s) after modifying
the <code>MutatingWebhookConfiguration</code>.</div></aside></div><p>For example, you can modify the <code>MutatingWebhookConfiguration</code> to always inject
the sidecar into every namespace, unless a label is set. Editing this
configuration is an advanced operation. Refer to the Kubernetes documentation
for the <a href=https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.10/#mutatingwebhookconfiguration-v1beta1-admissionregistration-k8s-io><code>MutatingWebhookConfiguration</code> API</a>
for more information.</p><h5 id=policy><em><strong>policy</strong></em></h5><p><code>disabled</code> - The sidecar injector will not inject the sidecar into
pods by default. Add the <code>sidecar.istio.io/inject</code> annotation with
value <code>true</code> to the pod template spec to override the default and enable injection.</p><p><code>enabled</code> - The sidecar injector will inject the sidecar into pods by
default. Add the <code>sidecar.istio.io/inject</code> annotation with
value <code>false</code> to the pod template spec to override the default and disable injection.</p><p>The following example uses the <code>sidecar.istio.io/inject</code> annotation to disable sidecar injection.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: apps/v1
kind: Deployment
metadata:
name: ignored
spec:
template:
metadata:
annotations:
sidecar.istio.io/inject: &#34;false&#34;
spec:
containers:
- name: ignored
image: tutum/curl
command: [&#34;/bin/sleep&#34;,&#34;infinity&#34;]
</code></pre><h5 id=template><em><strong>template</strong></em></h5><p>The sidecar injection template uses <a href=https://golang.org/pkg/text/template>https://golang.org/pkg/text/template</a> which,
when parsed and executed, is decoded to the following
struct containing the list of containers and volumes to inject into the pod.</p><pre><code class=language-go data-expandlinks=true data-repo=istio>type SidecarInjectionSpec struct {
RewriteAppHTTPProbe bool `yaml:&#34;rewriteAppHTTPProbe&#34;`
InitContainers []corev1.Container `yaml:&#34;initContainers&#34;`
Containers []corev1.Container `yaml:&#34;containers&#34;`
Volumes []corev1.Volume `yaml:&#34;volumes&#34;`
DNSConfig *corev1.PodDNSConfig `yaml:&#34;dnsConfig&#34;`
ImagePullSecrets []corev1.LocalObjectReference `yaml:&#34;imagePullSecrets&#34;`
}
</code></pre><p>The template is applied to the following data structure at runtime.</p><pre><code class=language-go data-expandlinks=true data-repo=istio>type SidecarTemplateData struct {
DeploymentMeta *metav1.ObjectMeta
ObjectMeta *metav1.ObjectMeta
Spec *corev1.PodSpec
ProxyConfig *meshconfig.ProxyConfig // Defined by https://istio.io/docs/reference/config/service-mesh.html#proxyconfig
MeshConfig *meshconfig.MeshConfig // Defined by https://istio.io/docs/reference/config/service-mesh.html#meshconfig
}
</code></pre><p><code>ObjectMeta</code> and <code>Spec</code> are from the pod. <code>ProxyConfig</code> and <code>MeshConfig</code>
are from the <code>istio</code> ConfigMap in the <code>istio-system</code> namespace. Templates can conditionally
define injected containers and volumes with this data.</p><p>For example, the following template</p><pre><code class=language-plain data-expandlinks=true data-repo=istio>containers:
- name: istio-proxy
image: istio.io/proxy:0.5.0
args:
- proxy
- sidecar
- --configPath
- {{ .ProxyConfig.ConfigPath }}
- --binaryPath
- {{ .ProxyConfig.BinaryPath }}
- --serviceCluster
{{ if ne &#34;&#34; (index .ObjectMeta.Labels &#34;app&#34;) -}}
- {{ index .ObjectMeta.Labels &#34;app&#34; }}
{{ else -}}
- &#34;istio-proxy&#34;
{{ end -}}
</code></pre><p>expands to</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>containers:
- name: istio-proxy
image: istio.io/proxy:0.5.0
args:
- proxy
- sidecar
- --configPath
- /etc/istio/proxy
- --binaryPath
- /usr/local/bin/envoy
- --serviceCluster
- sleep
</code></pre><p>when applied over a pod defined by the pod template spec in <a href=https://github.com/istio/istio/tree/release-1.5/samples/sleep/sleep.yaml><code>samples/sleep/sleep.yaml</code></a></p><h4 id=more-control-adding-exceptions>More control: adding exceptions</h4><p>There are cases where users do not have control of the pod creation, for instance, when they are created by someone else. Therefore they are unable to add the annotation <code>sidecar.istio.io/inject</code> in the pod, to explicitly instruct Istio whether to install the sidecar or not.</p><p>Think of auxiliary pods that might be created as an intermediate step while deploying an application. <a href=https://docs.okd.io/latest/builds/understanding-image-builds.html#build-strategy-s2i_understanding-image-builds>OpenShift Source to Image Builds</a>, for example, creates such pods for building the source code of an application. Once the binary artifact is built, the application pod is ready to run and the auxiliary pods are discarded. Those intermediate pods should not get an Istio sidecar, even if the policy is set to <code>enabled</code> and the namespace is properly labeled to get automatic injection.</p><p>For such cases you can instruct Istio to <strong>not</strong> inject the sidecar on those pods, based on labels that are present in those pods. You can do this by editing the <code>istio-sidecar-injector</code> ConfigMap and adding the entry <code>neverInjectSelector</code>. It is an array of Kubernetes label selectors. They are <code>OR'd</code>, stopping at the first match. See an example:</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: v1
kind: ConfigMap
metadata:
name: istio-sidecar-injector
data:
config: |-
policy: enabled
neverInjectSelector:
- matchExpressions:
- {key: openshift.io/build.name, operator: Exists}
- matchExpressions:
- {key: openshift.io/deployer-pod-for.name, operator: Exists}
template: |-
initContainers:
...
</code></pre><p>The above statement means: Never inject on pods that have the label <code>openshift.io/build.name</code> <strong>or</strong> <code>openshift.io/deployer-pod-for.name</code> – the values of the labels don&rsquo;t matter, we are just checking if the keys exist. With this rule added, the OpenShift Builds use case illustrated above is covered, meaning auxiliary pods will not have sidecars injected (because source-to-image auxiliary pods <strong>do</strong> contain those labels).</p><p>For completeness, you can also use a field called <code>alwaysInjectSelector</code>, with similar syntax, which will always inject the sidecar on pods that match that label selector, regardless of the global policy.</p><p>The label selector approach gives a lot of flexibility on how to express those exceptions. Take a look at <a href=https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#resources-that-support-set-based-requirements>these docs</a> to see what you can do with them!</p><div><aside class="callout tip"><div class=type><svg class="large-icon"><use xlink:href="/v1.5/img/icons.svg#callout-tip"/></svg></div><div class=content><p>It&rsquo;s worth noting that annotations in the pods have higher precedence than the label selectors. If a pod is annotated with <code>sidecar.istio.io/inject: "true/false"</code> then it will be honored. So, the order of evaluation is:</p><p><code>Pod Annotations → NeverInjectSelector → AlwaysInjectSelector → Default Policy</code></p></div></aside></div><h4 id=uninstalling-the-automatic-sidecar-injector>Uninstalling the automatic sidecar injector</h4><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl delete mutatingwebhookconfiguration istio-sidecar-injector
$ kubectl -n istio-system delete service istio-sidecar-injector
$ kubectl -n istio-system delete deployment istio-sidecar-injector
$ kubectl -n istio-system delete serviceaccount istio-sidecar-injector-service-account
$ kubectl delete clusterrole istio-sidecar-injector-istio-system
$ kubectl delete clusterrolebinding istio-sidecar-injector-admin-role-binding-istio-system
</code></pre><p>The above command will not remove the injected sidecars from Pods. A
rolling update or simply deleting the pods and forcing the deployment
to create them is required.</p><p>Optionally, it may also be desirable to clean-up other resources that
were modified in this task.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl label namespace default istio-injection-
</code></pre><nav id=see-also><h2>See also</h2><div class=see-also><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/docs/ops/deployment/requirements/>Pods and Services</a></p><p class=desc>Prepare your Kubernetes pods and services to run in an Istio-enabled cluster.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/blog/2019/data-plane-setup/>Demystifying Istio's Sidecar Injection Model</a></p><p class=desc>De-mystify how Istio manages to plugin its data-plane components into an existing deployment.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/docs/setup/additional-setup/cni/>Install Istio with the Istio CNI plugin</a></p><p class=desc>Install and use Istio with the Istio CNI plugin, allowing operators to deploy services with lower privilege.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/blog/2020/proxy-cert/>Provision a certificate and key for an application without sidecars</a></p><p class=desc>A mechanism to acquire and share an application certificate and key through mounted files.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/blog/2019/dns-cert/>DNS Certificate Management</a></p><p class=desc>Provision and manage DNS certificates in Istio.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.5/blog/2019/webhook/>Secure Webhook Management</a></p><p class=desc>A more secure way to manage Istio webhooks.</p></div></div></nav></article><nav class=pagenav><div class=left><a title="Describes the built-in Istio installation configuration profiles." href=/v1.5/docs/setup/additional-setup/config-profiles/><svg class="icon"><use xlink:href="/v1.5/img/icons.svg#left-arrow"/></svg>Installation Configuration Profiles</a></div><div class=right><a title="Install and use Istio with the Istio CNI plugin, allowing operators to deploy services with lower privilege." href=/v1.5/docs/setup/additional-setup/cni/>Install Istio with the Istio CNI plugin<svg class="icon"><use xlink:href="/v1.5/img/icons.svg#right-arrow"/></svg></a></div></nav><div id=feedback><div id=feedback-initial>Was this information useful?<br><button class="btn feedback" onclick="sendFeedback('en',1)">Yes</button>
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