mirror of https://github.com/istio/istio.io.git
80 lines
68 KiB
HTML
80 lines
68 KiB
HTML
<!doctype html><html lang=en itemscope itemtype=https://schema.org/WebPage><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="IE=edge"><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=theme-color content=#466BB0><meta name=title content=Observability><meta name=description content="Describes the telemetry and monitoring features provided by Istio."><meta name=keywords content=microservices,services,mesh,policies,telemetry,control,config><meta property=og:title content=Observability><meta property=og:type content=website><meta property=og:description content="Describes the telemetry and monitoring features provided by Istio."><meta property=og:url content=/v1.2/docs/concepts/observability/><meta property=og:image content=/v1.2/img/istio-whitelogo-bluebackground-framed.svg><meta property=og:image:alt content="Istio Logo"><meta property=og:image:width content=112><meta property=og:image:height content=150><meta property=og:site_name content=Istio><meta name=twitter:card content=summary><meta name=twitter:site content=@IstioMesh><title>Istioldie 1.2 / Observability</title><script async src="https://www.googletagmanager.com/gtag/js?id=UA-98480406-2"></script><script>window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments);}
|
|
gtag('js',new Date());gtag('config','UA-98480406-2');</script><link rel=alternate type=application/rss+xml title="Istio Blog" href=/v1.2/feed.xml><link rel="shortcut icon" href=/v1.2/favicons/favicon.ico><link rel=apple-touch-icon href=/v1.2/favicons/apple-touch-icon-180x180.png sizes=180x180><link rel=icon type=image/png href=/v1.2/favicons/favicon-16x16.png sizes=16x16><link rel=icon type=image/png href=/v1.2/favicons/favicon-32x32.png sizes=32x32><link rel=icon type=image/png href=/v1.2/favicons/android-36x36.png sizes=36x36><link rel=icon type=image/png href=/v1.2/favicons/android-48x48.png sizes=48x48><link rel=icon type=image/png href=/v1.2/favicons/android-72x72.png sizes=72x72><link rel=icon type=image/png href=/v1.2/favicons/android-96x96.png sizes=96xW96><link rel=icon type=image/png href=/v1.2/favicons/android-144x144.png sizes=144x144><link rel=icon type=image/png href=/v1.2/favicons/android-192x192.png sizes=192x192><link rel=manifest href=/v1.2/manifest.json><meta name=apple-mobile-web-app-title content=Istio><meta name=application-name content=Istio><link rel=stylesheet href="https://fonts.googleapis.com/css?family=Work+Sans:400|Chivo:400|Work+Sans:500,300,600,300italic,400italic,500italic,600italic|Chivo:500,300,600,300italic,400italic,500italic,600italic"><link rel=stylesheet href=/v1.2/css/all.css><script src=/v1.2/js/themes_init.min.js></script></head><body class="language-unknown archive-site"><script>const branchName="release-1.2";const docTitle="Observability";const iconFile="\/v1.2/img/icons.svg";const buttonCopy='Copy to clipboard';const buttonPrint='Print';const buttonDownload='Download';</script><script src="https://www.google.com/cse/brand?form=search-form" defer></script><script src=/v1.2/js/all.min.js data-manual defer></script><header><nav><a id=brand href=/v1.2/><span class=logo><svg viewBox="0 0 300 300"><circle cx="150" cy="150" r="146" stroke-width="2" /><path d="M65 240H225L125 270z"/><path d="M65 230l60-10V110z"/><path d="M135 220l90 10L135 30z"/></svg></span><span class=name>Istioldie 1.2</span></a><div id=hamburger><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#hamburger"/></svg></div><div id=header-links><span title="Learn how to deploy, use, and operate Istio.">Docs</span>
|
|
<a title="Posts about using Istio." href=/v1.2/blog/2019/announcing-1.2.5/>Blog</a>
|
|
<a title="Frequently Asked Questions about Istio." href=/v1.2/faq/>FAQ</a>
|
|
<a title="Get a bit more in-depth info about the Istio project." href=/v1.2/about/>About</a><div class=menu><button id=gearDropdownButton class=menu-trigger title="Options and settings" aria-label="Options and Settings" aria-controls=gearDropdownContent><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#gear"/></svg></button><div id=gearDropdownContent class=menu-content aria-labelledby=gearDropdownButton role=menu><a tabindex=-1 role=menuitem lang=en id=switch-lang-en class=active>English</a>
|
|
<a tabindex=-1 role=menuitem lang=zh id=switch-lang-zh>中文</a><div role=separator></div><a tabindex=-1 role=menuitem class=active id=light-theme-item>Light Theme</a>
|
|
<a tabindex=-1 role=menuitem id=dark-theme-item>Dark Theme</a><div role=separator></div><a tabindex=-1 role=menuitem id=syntax-coloring-item>Color Examples</a><div role=separator></div><h6>Other versions of this site</h6><a tabindex=-1 role=menuitem onclick="navigateToUrlOrRoot('https://istio.io/docs\/concepts\/observability\/');return false;">Current Release</a>
|
|
<a tabindex=-1 role=menuitem onclick="navigateToUrlOrRoot('https://preliminary.istio.io/docs\/concepts\/observability\/');return false;">Next Release</a>
|
|
<a tabindex=-1 role=menuitem href=https://archive.istio.io>Older Releases</a></div></div><button id=search-show title="Search this site" aria-label=Search><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#magnifier"/></svg></button></div><form id=search-form name=cse role=search><input type=hidden name=cx value=013699703217164175118:iwwf17ikgf4>
|
|
<input type=hidden name=ie value=utf-8>
|
|
<input type=hidden name=hl value=en>
|
|
<input type=hidden id=search-page-url value=/v1.2/search.html>
|
|
<input id=search-textbox class=form-control name=q type=search aria-label="Search this site">
|
|
<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#cancel-x"/></svg></button></form></nav></header><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="/v1.2/img/icons.svg#concepts"/></svg>Concepts</button><div class="body default" 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 design goals." href=/v1.2/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=/v1.2/docs/concepts/traffic-management/>Traffic Management</a></li><li role=none><a role=treeitem title="Describes Istio's authorization and authentication functionality." href=/v1.2/docs/concepts/security/>Policies and Security</a></li><li role=none><span role=treeitem class=current title="Describes the telemetry and monitoring features provided by Istio.">Observability</span></li><li role=none><a role=treeitem title="Introduces performance and scalability for Istio." href=/v1.2/docs/concepts/performance-and-scalability/>Performance and Scalability</a></li><li role=none><a role=treeitem title="Describes how a service mesh can be configured to include services from more than one cluster." href=/v1.2/docs/concepts/multicluster-deployments/>Multicluster Deployments</a></li></ul></div></div><div class=card><button class="header dynamic" id=card46 title="How to deploy and upgrade Istio in various environments such as Kubernetes and Consul." aria-controls=card46-body><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#setup"/></svg>Setup</button><div class=body aria-labelledby=card46 role=region id=card46-body><ul role=tree aria-expanded=true aria-labelledby=card46><li role=treeitem aria-label=Kubernetes><button aria-hidden=true></button><a title="Instructions for installing the Istio control plane on Kubernetes and adding virtual machines into the mesh." href=/v1.2/docs/setup/kubernetes/>Kubernetes</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Download, install, and try out Istio." href=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/platform-setup/alicloud/>Alibaba Cloud</a></li><li role=none><a role=treeitem title="Instructions to setup an Azure cluster for Istio." href=/v1.2/docs/setup/kubernetes/platform-setup/azure/>Azure</a></li><li role=none><a role=treeitem title="Instructions to setup Docker Desktop for use with Istio." href=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/platform-setup/ibm/>IBM Cloud</a></li><li role=none><a role=treeitem title="Instructions to setup a Gardener cluster for Istio." href=/v1.2/docs/setup/kubernetes/platform-setup/gardener/>Kubernetes Gardener</a></li><li role=none><a role=treeitem title="Instructions to setup minikube for use with Istio." href=/v1.2/docs/setup/kubernetes/platform-setup/minikube/>Minikube</a></li><li role=none><a role=treeitem title="Instructions to setup an OpenShift cluster for Istio." href=/v1.2/docs/setup/kubernetes/platform-setup/openshift/>OpenShift</a></li><li role=none><a role=treeitem title="Instructions to setup an OKE cluster for Istio." href=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/install/>Install</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Instructions to install Istio in a Kubernetes cluster for evaluation." href=/v1.2/docs/setup/kubernetes/install/kubernetes/>Quick Start Evaluation Install</a></li><li role=none><a role=treeitem title="Install and configure Istio for in-depth evaluation or production use." href=/v1.2/docs/setup/kubernetes/install/helm/>Customizable Install with Helm</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=/v1.2/docs/setup/kubernetes/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 individually deployed control planes." href=/v1.2/docs/setup/kubernetes/install/multicluster/gateways/>Multiple control planes</a></li><li role=none><a role=treeitem title="Install an Istio mesh across multiple Kubernetes clusters with a shared control plane and VPN connectivity between clusters." href=/v1.2/docs/setup/kubernetes/install/multicluster/shared-vpn/>Shared control plane (single-network)</a></li><li role=none><a role=treeitem title="Install an Istio mesh across multiple Kubernetes clusters using a shared control plane for diconnected cluster networks." href=/v1.2/docs/setup/kubernetes/install/multicluster/shared-gateways/>Shared control plane (multi-network)</a></li></ul></li><li role=treeitem aria-label="Platform-specific Instructions"><button aria-hidden=true></button><a title="Additional installation instructions for supported Kubernetes platforms." href=/v1.2/docs/setup/kubernetes/install/platform/>Platform-specific Instructions</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Instructions to install Istio using the Alibaba Cloud Kubernetes Container Service." href=/v1.2/docs/setup/kubernetes/install/platform/alicloud/>Alibaba Cloud</a></li><li role=none><a role=treeitem title="Instructions to install Istio using the Google Kubernetes Engine (GKE)." href=/v1.2/docs/setup/kubernetes/install/platform/gke/>Google Kubernetes Engine</a></li><li role=none><a role=treeitem title="Instructions to install Istio using IBM Cloud Public or IBM Cloud Private." href=/v1.2/docs/setup/kubernetes/install/platform/ibm/>IBM Cloud</a></li></ul></li></ul></li><li role=treeitem aria-label=Upgrade><button aria-hidden=true></button><a title="Information on upgrading Istio." href=/v1.2/docs/setup/kubernetes/upgrade/>Upgrade</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Important changes operators must understand before upgrading to Istio 1.2." href=/v1.2/docs/setup/kubernetes/upgrade/notice/>1.2 Upgrade Notice</a></li><li role=none><a role=treeitem title="Upgrade the Istio control plane and data plane independently." href=/v1.2/docs/setup/kubernetes/upgrade/steps/>Upgrade Steps</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=/v1.2/docs/setup/kubernetes/additional-setup/>More Guides</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Prepare your Kubernetes pods and services to run in an Istio-enabled cluster." href=/v1.2/docs/setup/kubernetes/additional-setup/requirements/>Pods and Services</a></li><li role=none><a role=treeitem title="Describes the built-in Istio installation configuration profiles." href=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/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=/v1.2/docs/setup/kubernetes/additional-setup/cni/>Install Istio with the Istio CNI plugin</a></li><li role=none><a role=treeitem title="Integrate VMs and bare metal hosts into an Istio mesh deployed on Kubernetes." href=/v1.2/docs/setup/kubernetes/additional-setup/mesh-expansion/>Mesh Expansion</a></li></ul></li></ul></li><li role=treeitem aria-label="Nomad & Consul"><button aria-hidden=true></button><a title="Instructions for installing the Istio control plane in a Consul based environment, with or without Nomad." href=/v1.2/docs/setup/consul/>Nomad & Consul</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Quick Start instructions to setup the Istio service mesh with Docker Compose." href=/v1.2/docs/setup/consul/quick-start/>Quick Start on Docker</a></li><li role=none><a role=treeitem title="Instructions for installing the Istio control plane in a Consul-based environment, with or without Nomad." href=/v1.2/docs/setup/consul/install/>Installation</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card69 title="How to do single specific targeted activities with the Istio system." aria-controls=card69-body><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#tasks"/></svg>Tasks</button><div class=body aria-labelledby=card69 role=region id=card69-body><ul role=tree aria-expanded=true aria-labelledby=card69><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Tasks that demonstrate Istio's traffic routing features." href=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/docs/tasks/traffic-management/egress/egress_sni_monitoring_and_policies/>Monitoring and Policies for TLS Egress</a></li><li role=none><a role=treeitem title="Describes how to configure Istio to let applications use an external HTTPS proxy." href=/v1.2/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=/v1.2/docs/tasks/security/>Security</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=/v1.2/docs/tasks/security/authn-policy/>Authentication Policy</a></li><li role=none><a role=treeitem title="Shows how to set up role-based access control for HTTP services." href=/v1.2/docs/tasks/security/authz-http/>Authorization for HTTP Services</a></li><li role=none><a role=treeitem title="Shows how to set up role-based access control for TCP services." href=/v1.2/docs/tasks/security/authz-tcp/>Authorization for TCP Services</a></li><li role=none><a role=treeitem title="Tutorial on how to configure the groups-base authorization and configure the authorization of list-typed claims in Istio." href=/v1.2/docs/tasks/security/rbac-groups/>Authorization for groups and list claims</a></li><li role=none><a role=treeitem title="Shows how to use Authorization permissive mode." href=/v1.2/docs/tasks/security/authz-permissive/>Authorization permissive mode</a></li><li role=none><a role=treeitem title="This task shows you how to integrate a Vault Certificate Authority with Istio for mutual TLS." href=/v1.2/docs/tasks/security/vault-ca/>Istio Vault CA Integration</a></li><li role=none><a role=treeitem title="Shows you how to verify and test Istio's automatic mutual TLS authentication." href=/v1.2/docs/tasks/security/mutual-tls/>Mutual TLS Deep-Dive</a></li><li role=none><a role=treeitem title="Shows how operators can configure Citadel with existing root certificate, signing certificate and key." href=/v1.2/docs/tasks/security/plugin-ca-cert/>Plugging in External CA Key and Certificate</a></li><li role=none><a role=treeitem title="Shows how to enable Citadel health checking with Kubernetes." href=/v1.2/docs/tasks/security/health-check/>Citadel Health Checking</a></li><li role=none><a role=treeitem title="Shows how to enable SDS (secret discovery service) for Istio identity provisioning." href=/v1.2/docs/tasks/security/auth-sds/>Provisioning Identity through SDS</a></li><li role=none><a role=treeitem title="Shows you how to incrementally migrate your Istio services to mutual TLS." href=/v1.2/docs/tasks/security/mtls-migration/>Mutual TLS Migration</a></li><li role=none><a role=treeitem title="Shows how to enable mutual TLS on HTTPS services." href=/v1.2/docs/tasks/security/https-overlay/>Mutual TLS over HTTPS</a></li></ul></li><li role=treeitem aria-label=Policies><button aria-hidden=true></button><a title="Demonstrates policy enforcement features." href=/v1.2/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=/v1.2/docs/tasks/policy-enforcement/enabling-policy/>Enabling Policy Enforcement</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=/v1.2/docs/tasks/policy-enforcement/rate-limiting/>Enabling Rate Limits</a></li><li role=none><a role=treeitem title="Shows how to modify request headers and routing using policy adapters." href=/v1.2/docs/tasks/policy-enforcement/control-headers/>Control Headers and Routing</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=/v1.2/docs/tasks/policy-enforcement/denial-and-list/>Denials and White/Black Listing</a></li></ul></li><li role=treeitem aria-label=Telemetry><button aria-hidden=true></button><a title="Demonstrates how to collect telemetry information from the mesh." href=/v1.2/docs/tasks/telemetry/>Telemetry</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." href=/v1.2/docs/tasks/telemetry/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 and customize metrics." href=/v1.2/docs/tasks/telemetry/metrics/collecting-metrics/>Collecting Metrics</a></li><li role=none><a role=treeitem title="This task shows you how to configure Istio to collect metrics for TCP services." href=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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 configuration, collection, and processing of Istio mesh logs." href=/v1.2/docs/tasks/telemetry/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 to collect and customize logs." href=/v1.2/docs/tasks/telemetry/logs/collecting-logs/>Collecting Logs</a></li><li role=none><a role=treeitem title="This task shows you how to configure Envoy proxies to print access log to their standard output." href=/v1.2/docs/tasks/telemetry/logs/access-log/>Getting Envoy's Access Logs</a></li><li role=none><a role=treeitem title="This task shows you how to configure Istio to log to a Fluentd daemon." href=/v1.2/docs/tasks/telemetry/logs/fluentd/>Logging with Fluentd</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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/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=/v1.2/docs/tasks/telemetry/gateways/>Remotely Accessing Telemetry Addons</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card83 title="A variety of fully working example uses for Istio that you can experiment with." aria-controls=card83-body><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#examples"/></svg>Examples</button><div class=body aria-labelledby=card83 role=region id=card83-body><ul role=tree aria-expanded=true aria-labelledby=card83><li role=none><a role=treeitem title="Deploys a sample application composed of four separate microservices used to demonstrate various Istio features." href=/v1.2/docs/examples/bookinfo/>Bookinfo Application</a></li><li role=none><a role=treeitem title="Explains how to manually integrate Google Cloud Endpoints services with Istio." href=/v1.2/docs/examples/endpoints/>Install Istio for Google Cloud Endpoints Services</a></li><li role=none><a role=treeitem title="Illustrates how to use Istio to control a Kubernetes cluster and raw VMs as a single mesh." href=/v1.2/docs/examples/integrating-vms/>Integrating Virtual Machines</a></li><li role=treeitem aria-label="Multicluster Service Mesh"><button aria-hidden=true></button><a title="Multicluster service mesh examples for Istio that you can experiment with." href=/v1.2/docs/examples/multicluster/>Multicluster Service Mesh</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Set up a multicluster mesh over two GKE clusters." href=/v1.2/docs/examples/multicluster/gke/>Google Kubernetes Engine</a></li><li role=none><a role=treeitem title="Example multicluster mesh over two IBM Cloud Private clusters." href=/v1.2/docs/examples/multicluster/icp/>IBM Cloud Private</a></li></ul></li></ul></div></div><div class=card><button class="header dynamic" id=card100 title="Hints, tips, tricks about running an Istio mesh." aria-controls=card100-body><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#guide"/></svg>Operations</button><div class=body aria-labelledby=card100 role=region id=card100-body><ul role=tree aria-expanded=true aria-labelledby=card100><li role=none><a role=treeitem title="Describes how to use component-level logging to get insights into a running component's behavior." href=/v1.2/docs/ops/component-logging/>Component Logging</a></li><li role=none><a role=treeitem title="Describes how to use ControlZ to get insight into individual running components." href=/v1.2/docs/ops/controlz/>Component Introspection</a></li><li role=none><a role=treeitem title="How to do low-level debugging of Istio components." href=/v1.2/docs/ops/component-debugging/>Component Debugging</a></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=/v1.2/docs/ops/traffic-management/>Traffic Management</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="An introduction to Istio networking operational aspects." href=/v1.2/docs/ops/traffic-management/introduction/>Introduction to Network Operations</a></li><li role=none><a role=treeitem title="Provides specific deployment and configuration guidelines." href=/v1.2/docs/ops/traffic-management/deploy-guidelines/>Deployment and Configuration Guidelines</a></li><li role=none><a role=treeitem title="Describes common networking issues and how to recognize and avoid them." href=/v1.2/docs/ops/traffic-management/troubleshooting/>Troubleshooting Networking Issues</a></li><li role=none><a role=treeitem title="Describes tools and techniques to diagnose Envoy configuration issues related to traffic management." href=/v1.2/docs/ops/traffic-management/proxy-cmd/>Debugging Envoy and Pilot</a></li><li role=none><a role=treeitem title="Information on how to enable and understand Locality Load Balancing." href=/v1.2/docs/ops/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=/v1.2/docs/ops/security/>Security</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Demonstrates how to debug authorization." href=/v1.2/docs/ops/security/debugging-authorization/>Debugging Authorization</a></li><li role=none><a role=treeitem title="What to do if Citadel is not behaving properly." href=/v1.2/docs/ops/security/repairing-citadel/>Repairing Citadel</a></li><li role=none><a role=treeitem title="What to do if you suspect problems with Istio keys and certificates." href=/v1.2/docs/ops/security/keys-and-certs/>Keys and Certificates</a></li><li role=none><a role=treeitem title="What to do if mutual TLS authentication isn't working." href=/v1.2/docs/ops/security/mutual-tls/>Mutual TLS</a></li><li role=none><a role=treeitem title="Authorization is enabled, but requests make it through anyway." href=/v1.2/docs/ops/security/authorization-permissive/>Authorization Too Permissive</a></li><li role=none><a role=treeitem title="Authorization is enabled and no requests make it through to the service." href=/v1.2/docs/ops/security/authorization-restrictive/>Authorization Too Restrictive</a></li><li role=none><a role=treeitem title="What to do if end-user authentication doesn't work." href=/v1.2/docs/ops/security/end-user-auth/>End User Authentication</a></li><li role=none><a role=treeitem title="Learn how to extend the lifetime of the Istio self-signed root certificate." href=/v1.2/docs/ops/security/root-transition/>Extending Self-Signed Certificate Lifetime</a></li></ul></li><li role=treeitem aria-label=Telemetry><button aria-hidden=true></button><a title="Helps you manage telemetry collection and visualization in a running mesh." href=/v1.2/docs/ops/telemetry/>Telemetry</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Diagnose problems where metrics are not being collected." href=/v1.2/docs/ops/telemetry/missing-metrics/>Missing Metrics</a></li><li role=none><a role=treeitem title="Dealing with Grafana issues." href=/v1.2/docs/ops/telemetry/grafana/>Grafana</a></li><li role=none><a role=treeitem title="Fine-grained control of Envoy statistics." href=/v1.2/docs/ops/telemetry/envoy-stats/>Envoy Statistics</a></li></ul></li><li role=treeitem aria-label="Installation and Setup"><button aria-hidden=true></button><a title="Helps you diagnose and repair Istio installations." href=/v1.2/docs/ops/setup/>Installation and Setup</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=/v1.2/docs/ops/setup/webhook/>Dynamic Admission Webhooks Overview</a></li><li role=none><a role=treeitem title="Describes Istio's use of Kubernetes webhooks for server-side configuration validation." href=/v1.2/docs/ops/setup/validation/>Configuration Validation Webhook</a></li><li role=none><a role=treeitem title="Istio includes a supplemental tool that provides debugging and diagnosis for Istio service mesh deployments." href=/v1.2/docs/ops/setup/istioctl/>Using the istioctl command-line tool</a></li><li role=none><a role=treeitem title="Describes Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.2/docs/ops/setup/injection/>Sidecar Injection Webhook</a></li><li role=none><a role=treeitem title="Describes how to check which capabilities are allowed for your pods." href=/v1.2/docs/ops/setup/required-pod-capabilities/>Required Pod Capabilities</a></li><li role=none><a role=treeitem title="Shows how to do health checking for Istio services." href=/v1.2/docs/ops/setup/app-health-check/>Health Checking of Istio Services</a></li></ul></li><li role=none><a role=treeitem title="Advice on tackling common problems with Istio." href=/v1.2/docs/ops/misc/>Miscellaneous</a></li></ul></div></div><div class=card><button class="header dynamic" id=card130 title="Detailed authoritative reference material such as command-line options, configuration options, and API calling parameters." aria-controls=card130-body><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#reference"/></svg>Reference</button><div class=body aria-labelledby=card130 role=region id=card130-body><ul role=tree aria-expanded=true aria-labelledby=card130><li role=treeitem aria-label=Configuration><button aria-hidden=true></button><a title="Detailed information on configuration options." href=/v1.2/docs/reference/config/>Configuration</a><ul role=group aria-expanded=false><li role=treeitem aria-label="Traffic Management"><button aria-hidden=true></button><a title="Describes how to configure HTTP/TCP routing features." href=/v1.2/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=/v1.2/docs/reference/config/networking/v1alpha3/destination-rule/>Destination Rule</a></li><li role=none><a role=treeitem title="Configuration affecting insertion of custom Envoy filters." href=/v1.2/docs/reference/config/networking/v1alpha3/envoy-filter/>Envoy Filter</a></li><li role=none><a role=treeitem title="Configuration affecting edge load balancer." href=/v1.2/docs/reference/config/networking/v1alpha3/gateway/>Gateway</a></li><li role=none><a role=treeitem title="Configuration affecting service registry." href=/v1.2/docs/reference/config/networking/v1alpha3/service-entry/>Service Entry</a></li><li role=none><a role=treeitem title="Configuration affecting network reachability of a sidecar." href=/v1.2/docs/reference/config/networking/v1alpha3/sidecar/>Sidecar</a></li><li role=none><a role=treeitem title="Configuration affecting label/content routing, sni routing, etc." href=/v1.2/docs/reference/config/networking/v1alpha3/virtual-service/>Virtual Service</a></li></ul></li><li role=treeitem aria-label=Authorization><button aria-hidden=true></button><a title="Describes how to configure Istio's authorization features." href=/v1.2/docs/reference/config/authorization/>Authorization</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Describes the supported constraints and properties." href=/v1.2/docs/reference/config/authorization/constraints-and-properties/>Constraints and Properties</a></li><li role=none><a role=treeitem title="Configuration for Role Based Access Control." href=/v1.2/docs/reference/config/authorization/istio.rbac.v1alpha1/>RBAC</a></li></ul></li><li role=none><a role=treeitem title="Describes the options available when installing Istio using the included Helm chart." href=/v1.2/docs/reference/config/installation-options/>Installation Options</a></li><li role=none><a role=treeitem title="Details the Helm chart installation options differences between release-1.1 and release-1.2." href=/v1.2/docs/reference/config/installation-options-changes/>Installation Options Changes</a></li><li role=treeitem aria-label="Policies and Telemetry"><button aria-hidden=true></button><a title="Describes how to configure Istio's policy and telemetry features." href=/v1.2/docs/reference/config/policy-and-telemetry/>Policies and Telemetry</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Describes the configuration model for Istio's policy enforcement and telemetry mechanisms." href=/v1.2/docs/reference/config/policy-and-telemetry/mixer-overview/>Mixer Configuration Model</a></li><li role=none><a role=treeitem title="Describes the base attribute vocabulary used for policy and control." href=/v1.2/docs/reference/config/policy-and-telemetry/attribute-vocabulary/>Attribute Vocabulary</a></li><li role=none><a role=treeitem title="Mixer configuration expression language reference." href=/v1.2/docs/reference/config/policy-and-telemetry/expression-language/>Expression Language</a></li><li role=treeitem aria-label=Adapters><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=/v1.2/docs/reference/config/policy-and-telemetry/adapters/>Adapters</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=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/adapters/apigee/>Apigee</a></li><li role=none><a role=treeitem title="Adapter for circonus.com's monitoring solution." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/circonus/>Circonus</a></li><li role=none><a role=treeitem title="Adapter for cloudmonitor metrics." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/cloudmonitor/>CloudMonitor</a></li><li role=none><a role=treeitem title="Adapter for cloudwatch metrics." href=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/adapters/datadog/>Datadog</a></li><li role=none><a role=treeitem title="Adapter that always returns a precondition denial." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/denier/>Denier</a></li><li role=none><a role=treeitem title="Adapter that delivers logs to a Fluentd daemon." href=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/adapters/kubernetesenv/>Kubernetes Env</a></li><li role=none><a role=treeitem title="Adapter that performs whitelist or blacklist checks." href=/v1.2/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=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/adapters/opa/>OPA</a></li><li role=none><a role=treeitem title="Adapter that exposes Istio metrics for ingestion by a Prometheus harvester." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/prometheus/>Prometheus</a></li><li role=none><a role=treeitem title="Adapter for a Redis-based quota management system." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/redisquota/>Redis Quota</a></li><li role=none><a role=treeitem title="Adapter that sends metrics to SignalFx." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/signalfx/>SignalFx</a></li><li role=none><a role=treeitem title="Adapter to deliver logs and metrics to Papertrail and AppOptics backends." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/solarwinds/>SolarWinds</a></li><li role=none><a role=treeitem title="Adapter to deliver logs, metrics, and traces to Stackdriver." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/stackdriver/>Stackdriver</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to a StatsD backend." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/statsd/>StatsD</a></li><li role=none><a role=treeitem title="Adapter to locally output logs and metrics." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/stdio/>Stdio</a></li><li role=none><a role=treeitem title="Adapter to deliver metrics to Wavefront by VMware." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/wavefront/>Wavefront by VMware</a></li><li role=none><a role=treeitem title="Adapter to deliver tracing data to Zipkin." href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/zipkin/>Zipkin</a></li></ul></li><li role=none><a role=treeitem title="Default Metrics exported from Istio through Mixer." href=/v1.2/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=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/templates/apikey/>API Key</a></li><li role=none><a role=treeitem title="The Analytics template is used to dispatch runtime telemetry to Apigee." href=/v1.2/docs/reference/config/policy-and-telemetry/templates/analytics/>Analytics</a></li><li role=none><a role=treeitem title="A template used to represent an access control query." href=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/templates/checknothing/>Check Nothing</a></li><li role=none><a role=treeitem title="A template designed to report observed communication edges between workloads." href=/v1.2/docs/reference/config/policy-and-telemetry/templates/edge/>Edge</a></li><li role=none><a role=treeitem title="A template that is used to control the production of Kubernetes-specific attributes." href=/v1.2/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=/v1.2/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=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/templates/metric/>Metric</a></li><li role=none><a role=treeitem title="A template that represents a quota allocation request." href=/v1.2/docs/reference/config/policy-and-telemetry/templates/quota/>Quota</a></li><li role=none><a role=treeitem title="A template that carries no data, useful for testing." href=/v1.2/docs/reference/config/policy-and-telemetry/templates/reportnothing/>Report Nothing</a></li><li role=none><a role=treeitem title="A template that represents an individual span within a distributed trace." href=/v1.2/docs/reference/config/policy-and-telemetry/templates/tracespan/>Trace Span</a></li></ul></li><li role=none><a role=treeitem title="Configuration state for the Mixer client library." href=/v1.2/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=/v1.2/docs/reference/config/policy-and-telemetry/istio.policy.v1beta1/>Rules</a></li></ul></li><li role=none><a role=treeitem title="Authentication policy for Istio services." href=/v1.2/docs/reference/config/istio.authentication.v1alpha1/>Authentication Policy</a></li><li role=none><a role=treeitem title="Configuration affecting the service mesh as a whole." href=/v1.2/docs/reference/config/istio.mesh.v1alpha1/>Service Mesh</a></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=/v1.2/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=/v1.2/docs/reference/commands/galley/>galley</a></li><li role=none><a role=treeitem title="Istio Certificate Authority (CA)." href=/v1.2/docs/reference/commands/istio_ca/>istio_ca</a></li><li role=none><a role=treeitem title="Istio control interface." href=/v1.2/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=/v1.2/docs/reference/commands/mixs/>mixs</a></li><li role=none><a role=treeitem title="Istio security per-node agent." href=/v1.2/docs/reference/commands/node_agent/>node_agent</a></li><li role=none><a role=treeitem title="The Istio operator." href=/v1.2/docs/reference/commands/operator/>operator</a></li><li role=none><a role=treeitem title="Istio Pilot agent." href=/v1.2/docs/reference/commands/pilot-agent/>pilot-agent</a></li><li role=none><a role=treeitem title="Istio Pilot." href=/v1.2/docs/reference/commands/pilot-discovery/>pilot-discovery</a></li><li role=none><a role=treeitem title="Kubernetes webhook for automatic Istio sidecar injection." href=/v1.2/docs/reference/commands/sidecar-injector/>sidecar-injector</a></li></ul></li><li role=none><a role=treeitem title="A glossary of common Istio terms." href=/v1.2/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="/v1.2/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.2/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.2/docs/ title="Learn how to deploy, use, and operate Istio.">Docs</a></li><li><a href=/v1.2/docs/concepts/ title="Learn about the different parts of the Istio system and the abstractions it uses.">Concepts</a></li><li>Observability</li></ol></nav><article aria-labelledby=title><div class=title-area><div><h1 id=title>Observability</h1><p class=byline><span title="1003 words"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#clock"/></svg><span> </span>5 minute read</span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=Metrics><a href=#metrics>Metrics</a><ol><li role=none aria-label="Proxy-level Metrics"><a href=#proxy-level-metrics>Proxy-level Metrics</a><li role=none aria-label="Service-level Metrics"><a href=#service-level-metrics>Service-level Metrics</a><li role=none aria-label="Control Plane Metrics"><a href=#control-plane-metrics>Control Plane Metrics</a></ol></li><li role=none aria-label="Distributed Traces"><a href=#distributed-traces>Distributed Traces</a><li role=none aria-label="Access Logs"><a href=#access-logs>Access Logs</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><p>Istio generates detailed telemetry for all service communications within a mesh. This telemetry provides <em>observability</em> of service behavior,
|
|
empowering operators to troubleshoot, maintain, and optimize their applications – without imposing any additional burdens on service developers. Through
|
|
Istio, operators gain a thorough understanding of how monitored services are interacting, both with other services and with the Istio components themselves.</p><p>Istio generates the following types of telemetry in order to provide overall service mesh observability:</p><ul><li><a href=#metrics><strong>Metrics</strong></a>. Istio generates a set of service metrics based on the four “golden signals” of monitoring (latency, traffic, errors, and
|
|
saturation). Istio also provides detailed metrics for the <a href=/v1.2/docs/concepts/what-is-istio/#architecture>mesh control plane</a>.
|
|
A default set of mesh monitoring dashboards built on top of these metrics is also provided.</li><li><a href=#distributed-traces><strong>Distributed Traces</strong></a>. Istio generates distributed trace spans for each service, providing operators with a detailed understanding
|
|
of call flows and service dependencies within a mesh.</li><li><a href=#access-logs><strong>Access Logs</strong></a>. As traffic flows into a service within a mesh, Istio can generate a full record of each request, including source and
|
|
destination metadata. This information enables operators to audit service behavior down to the individual
|
|
<a href=/v1.2/docs/reference/glossary/#workload-instance>workload instance</a> level.</li></ul><h2 id=metrics>Metrics</h2><p>Metrics provide a way of monitoring and understanding behavior in aggregate.</p><p>To monitor service behavior, Istio generates metrics for all service traffic in, out, and within an Istio service mesh. These metrics provide information on
|
|
behaviors such as the overall volume of traffic, the error rates within the traffic, and the response times for requests.</p><p>In addition to monitoring the behavior of services within a mesh, it is also important to monitor the behavior of the mesh itself. Istio components export
|
|
metrics on their own internal behaviors to provide insight on the health and function of the mesh control plane.</p><p>Istio metrics collection is driven by operator configuration. Operators select how and when to collect metrics, as well as how detailed the metrics themselves
|
|
should be. This enables operators to flexibly tune metrics collection to meet their individual needs.</p><h3 id=proxy-level-metrics>Proxy-level Metrics</h3><p>Istio metrics collection begins with the sidecar proxies (Envoy). Each proxy generates a rich set of metrics about all traffic passing through the proxy (both
|
|
inbound and outbound). The proxies also provide detailed statistics about the administrative functions of the proxy itself, including configuration and health
|
|
information.</p><p>Envoy-generated metrics provide monitoring of the mesh at the granularity of Envoy resources (such as listeners and clusters). As a result, understanding the
|
|
connection between mesh services and Envoy resources is required for monitoring the Envoy metrics.</p><p>Istio enables operators to select which of the Envoy metrics are generated and collected at each workload instance. By default, Istio enables only a small
|
|
subset of the Envoy-generated statistics to avoid overwhelming metrics backends and to reduce the CPU overhead associated with metrics collection. However,
|
|
operators can easily expand the set of collected proxy metrics when required. This enables targeted debugging of networking behavior, while reducing the
|
|
overall cost of monitoring across the mesh.</p><p>The <a href=https://www.envoyproxy.io/docs/envoy/latest/>Envoy documentation site</a> includes a detailed overview of <a href="https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/observability/statistics.html?highlight=statistics">Envoy statistics collection</a>.
|
|
The operations guide on <a href=/v1.2/docs/ops/telemetry/envoy-stats/>Envoy Statistics</a> provides more information on controlling the generation of proxy-level metrics.</p><p>Example proxy-level Metrics:</p><pre><code class=language-json>envoy_cluster_internal_upstream_rq{response_code_class="2xx",cluster_name="xds-grpc"} 7163
|
|
|
|
envoy_cluster_upstream_rq_completed{cluster_name="xds-grpc"} 7164
|
|
|
|
envoy_cluster_ssl_connection_error{cluster_name="xds-grpc"} 0
|
|
|
|
envoy_cluster_lb_subsets_removed{cluster_name="xds-grpc"} 0
|
|
|
|
envoy_cluster_internal_upstream_rq{response_code="503",cluster_name="xds-grpc"} 1
|
|
</code></pre><h3 id=service-level-metrics>Service-level Metrics</h3><p>In addition to the proxy-level metrics, Istio provides a set of service-oriented metrics for monitoring service communications. These metrics cover the four
|
|
basic service monitoring needs: latency, traffic, errors, and saturation. Istio ships with a default set of
|
|
<a href=/v1.2/docs/tasks/telemetry/metrics/using-istio-dashboard/>dashboards</a> for monitoring service behaviors based on these metrics.</p><p>The <a href=/v1.2/docs/reference/config/policy-and-telemetry/metrics/>default Istio metrics</a> are defined by a set of configuration artifacts that ship with Istio and are
|
|
exported to <a href=/v1.2/docs/reference/config/policy-and-telemetry/adapters/prometheus/>Prometheus</a> by default. Operators are free to modify the
|
|
shape and content of these metrics, as well as to change their collection mechanism, to meet their individual monitoring needs.</p><p>The <a href=/v1.2/docs/tasks/telemetry/metrics/collecting-metrics/>Collecting Metrics</a> task provides more information on customizing Istio metrics generation.</p><p>Use of the service-level metrics is entirely optional. Operators may choose to turn off generation and collection of these metrics to meet their individual
|
|
needs.</p><p>Example service-level metric:</p><pre><code class=language-json>istio_requests_total{
|
|
connection_security_policy="mutual_tls",
|
|
destination_app="details",
|
|
destination_principal="cluster.local/ns/default/sa/default",
|
|
destination_service="details.default.svc.cluster.local",
|
|
destination_service_name="details",
|
|
destination_service_namespace="default",
|
|
destination_version="v1",
|
|
destination_workload="details-v1",
|
|
destination_workload_namespace="default",
|
|
reporter="destination",
|
|
request_protocol="http",
|
|
response_code="200",
|
|
response_flags="-",
|
|
source_app="productpage",
|
|
source_principal="cluster.local/ns/default/sa/default",
|
|
source_version="v1",
|
|
source_workload="productpage-v1",
|
|
source_workload_namespace="default"
|
|
} 214
|
|
</code></pre><h3 id=control-plane-metrics>Control Plane Metrics</h3><p>Each Istio component (Pilot, Galley, Mixer) also provides a collection of self-monitoring metrics. These metrics allow monitoring of the behavior
|
|
of Istio itself (as distinct from that of the services within the mesh).</p><p>For more information on which metrics are maintained, please refer to the reference documentation for each of the components:</p><ul><li><a href=/v1.2/docs/reference/commands/pilot-discovery/#metrics>Pilot</a></li><li><a href=/v1.2/docs/reference/commands/galley/#metrics>Galley</a></li><li><a href=/v1.2/docs/reference/commands/mixs/#metrics>Mixer</a></li><li><a href=/v1.2/docs/reference/commands/istio_ca/#metrics>Citadel</a></li></ul><h2 id=distributed-traces>Distributed Traces</h2><p>Distributed tracing provides a way to monitor and understand behavior by monitoring individual requests as they flow through a mesh.
|
|
Traces empower mesh operators to understand service dependencies and the sources of latency within their service mesh.</p><p>Istio supports distributed tracing through the Envoy proxies. The proxies automatically generate trace spans on behalf of the applications they proxy,
|
|
requiring only that the applications forward the appropriate request context.</p><p>Istio supports a number of tracing backends, including <a href=/v1.2/docs/tasks/telemetry/distributed-tracing/zipkin/>Zipkin</a>,
|
|
<a href=/v1.2/docs/tasks/telemetry/distributed-tracing/jaeger/>Jaeger</a>, <a href=/v1.2/docs/tasks/telemetry/distributed-tracing/lightstep/>LightStep</a>, and
|
|
<a href=https://www.datadoghq.com/blog/monitor-istio-with-datadog/>Datadog</a>. Operators control the sampling rate for trace generation (that is, the rate at
|
|
which tracing data is generated per request). This allows operators to control the amount and rate of tracing data being produced for their mesh.</p><p>More information about Distributed Tracing with Istio is found in our <a href=/v1.2/faq/distributed-tracing/>FAQ on Distributed Tracing</a>.</p><p>Example Istio-generated distributed trace for a single request:</p><figure style=width:100%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:40.150564617314934%><a data-skipendnotes=true href=/v1.2/docs/tasks/telemetry/distributed-tracing/zipkin/istio-tracing-details-zipkin.png title="Distributed Trace for a single request"><img class=element-to-stretch src=/v1.2/docs/tasks/telemetry/distributed-tracing/zipkin/istio-tracing-details-zipkin.png alt="Distributed Trace for a single request"></a></div><figcaption>Distributed Trace for a single request</figcaption></figure><h2 id=access-logs>Access Logs</h2><p>Access logs provide a way to monitor and understand behavior from the perspective of an individual workload instance.</p><p>Istio can generate access logs for service traffic in a configurable set of formats, providing operators with full control of the how, what, when and where of
|
|
logging. Istio exposes a full set of source and destination metadata to the access logging mechanisms, allowing detailed audit of network transactions.</p><p>Access logs may be generated locally or exported to custom backends, including <a href=/v1.2/docs/tasks/telemetry/logs/fluentd/>Fluentd</a>.</p><p>More information on access logging is provided in the <a href=/v1.2/docs/tasks/telemetry/logs/collecting-logs/>Collecting Logs</a> and the <a href=/v1.2/docs/tasks/telemetry/logs/access-log/>Getting Envoy’s Access Logs</a> tasks.</p><p>Example Istio access log (formatted in JSON):</p><pre><code class=language-json>{"level":"info","time":"2019-06-11T20:57:35.424310Z","instance":"accesslog.instance.istio-control","connection_security_policy":"mutual_tls","destinationApp":"productpage","destinationIp":"10.44.2.15","destinationName":"productpage-v1-6db7564db8-pvsnd","destinationNamespace":"default","destinationOwner":"kubernetes://apis/apps/v1/namespaces/default/deployments/productpage-v1","destinationPrincipal":"cluster.local/ns/default/sa/default","destinationServiceHost":"productpage.default.svc.cluster.local","destinationWorkload":"productpage-v1","httpAuthority":"35.202.6.119","latency":"35.076236ms","method":"GET","protocol":"http","receivedBytes":917,"referer":"","reporter":"destination","requestId":"e3f7cffb-5642-434d-ae75-233a05b06158","requestSize":0,"requestedServerName":"outbound_.9080_._.productpage.default.svc.cluster.local","responseCode":200,"responseFlags":"-","responseSize":4183,"responseTimestamp":"2019-06-11T20:57:35.459150Z","sentBytes":4328,"sourceApp":"istio-ingressgateway","sourceIp":"10.44.0.8","sourceName":"ingressgateway-7748774cbf-bvf4j","sourceNamespace":"istio-control","sourceOwner":"kubernetes://apis/apps/v1/namespaces/istio-control/deployments/ingressgateway","sourcePrincipal":"cluster.local/ns/istio-control/sa/default","sourceWorkload":"ingressgateway","url":"/productpage","userAgent":"curl/7.54.0","xForwardedFor":"10.128.0.35"}
|
|
</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=/v1.2/docs/reference/config/policy-and-telemetry/mixer-overview/>Mixer Configuration Model</a></p><p class=desc>Describes the configuration model for Istio's policy enforcement and telemetry mechanisms.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/blog/2017/mixer-spof-myth/>Mixer and the SPOF Myth</a></p><p class=desc>Improving availability and reducing latency.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/blog/2017/adapter-model/>Mixer Adapter Model</a></p><p class=desc>Provides an overview of Mixer's plug-in architecture.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/tasks/traffic-management/egress/egress_sni_monitoring_and_policies/>Monitoring and Policies for TLS Egress</a></p><p class=desc>Describes how to configure SNI monitoring and apply policies on TLS egress traffic.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/tasks/telemetry/logs/collecting-logs/>Collecting Logs</a></p><p class=desc>This task shows you how to configure Istio to collect and customize logs.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/tasks/telemetry/metrics/collecting-metrics/>Collecting Metrics</a></p><p class=desc>This task shows you how to configure Istio to collect and customize metrics.</p></div></div></nav></article><nav class=pagenav><div class=left><a title="Describes Istio's authorization and authentication functionality." href=/v1.2/docs/concepts/security/><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#left-arrow"/></svg>Policies and Security</a></div><div class=right><a title="Introduces performance and scalability for Istio." href=/v1.2/docs/concepts/performance-and-scalability/>Performance and Scalability<svg class="icon"><use xlink:href="/v1.2/img/icons.svg#right-arrow"/></svg></a></div></nav><div id=endnotes-container aria-hidden=true><h2>Links</h2><ol id=endnotes></ol></div></div><div class=toc-container><nav class=toc aria-label="Table of Contents"><div id=toc><ol><li role=none aria-label=Metrics><a href=#metrics>Metrics</a><ol><li role=none aria-label="Proxy-level Metrics"><a href=#proxy-level-metrics>Proxy-level Metrics</a><li role=none aria-label="Service-level Metrics"><a href=#service-level-metrics>Service-level Metrics</a><li role=none aria-label="Control Plane Metrics"><a href=#control-plane-metrics>Control Plane Metrics</a></ol></li><li role=none aria-label="Distributed Traces"><a href=#distributed-traces>Distributed Traces</a><li role=none aria-label="Access Logs"><a href=#access-logs>Access Logs</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol></div></nav></div></main><footer><div class=user-links><a class=channel title="Go download Istio 1.2.5 now" href=https://github.com/istio/istio/releases/tag/1.2.5 aria-label="Download Istio"><span>download</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#download"/></svg>
|
|
</a><a class=channel title="Join the Istio discussion board to participate in discussions and get help troubleshooting problems" href=https://discuss.istio.io aria-label="Istio discussion board"><span>discuss</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#discourse"/></svg></a>
|
|
<a class=channel title="Stack Overflow is where you can ask questions and find curated answers on deploying, configuring, and using Istio" href=https://stackoverflow.com/questions/tagged/istio aria-label="Stack Overflow"><span>stack overflow</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#stackoverflow"/></svg></a>
|
|
<a class=channel title="Interactively discuss issues with the Istio community on Slack" href=https://istio.slack.com aria-label=slack><span>slack</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#slack"/></svg></a>
|
|
<a class=channel title="Follow us on Twitter to get the latest news" href=https://twitter.com/IstioMesh aria-label=Twitter><span>twitter</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#twitter"/></svg></a><div class=tag>for everyone</div></div><div class=info><p class=copyright>Istio Archive
|
|
1.2.5<br>© 2019 Istio Authors, <a href=https://policies.google.com/privacy>Privacy Policy</a><br>Archived on September 12, 2019</p></div><div class=dev-links><a class=channel title="GitHub is where development takes place on Istio code" href=https://github.com/istio/community aria-label=GitHub><span>github</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#github"/></svg></a>
|
|
<a class=channel title="Access our team drive if you'd like to take a look at the Istio technical design documents" href=https://groups.google.com/forum/#!forum/istio-team-drive-access aria-label="team drive"><span>drive</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#drive"/></svg></a>
|
|
<a class=channel title="If you'd like to contribute to the Istio project, consider participating in our working groups" href=https://github.com/istio/community/blob/master/WORKING-GROUPS.md aria-label="working groups"><span>working groups</span><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#working-groups"/></svg></a><div class=tag>for developers</div></div></footer><div id=scroll-to-top-container aria-hidden=true><button id=scroll-to-top title="Back to top"><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#top"/></svg></button></div></body></html> |