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<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>
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<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 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><a role=treeitem title="Describes the telemetry and monitoring features provided by Istio." href=/v1.2/docs/concepts/observability/>Observability</a></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 default" aria-labelledby=card46 role=region id=card46-body><ul role=tree aria-expanded=true aria-labelledby=card46><li role=treeitem aria-label=Kubernetes><button class=show 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=true><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 class=show aria-hidden=true></button><a title="Information on upgrading Istio." href=/v1.2/docs/setup/kubernetes/upgrade/>Upgrade</a><ul role=group aria-expanded=true 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><span role=treeitem class=current title="Upgrade the Istio control plane and data plane independently.">Upgrade Steps</span></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 &amp; 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 &amp; 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&#39;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/setup/ title="How to deploy and upgrade Istio in various environments such as Kubernetes and Consul.">Setup</a></li><li><a href=/v1.2/docs/setup/kubernetes/ title="Instructions for installing the Istio control plane on Kubernetes and adding virtual machines into the mesh.">Kubernetes</a></li><li><a href=/v1.2/docs/setup/kubernetes/upgrade/ title="Information on upgrading Istio.">Upgrade</a></li><li>Upgrade Steps</li></ol></nav><article aria-labelledby=title><div class=title-area><div><h1 id=title>Upgrade Steps</h1><p class=byline><span title="1534 words"><svg class="icon"><use xlink:href="/v1.2/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="Upgrade steps"><a href=#upgrade-steps>Upgrade steps</a><ol><li role=none aria-label="Istio CNI upgrade"><a href=#istio-cni-upgrade>Istio CNI upgrade</a><li role=none aria-label="Control plane upgrade"><a href=#control-plane-upgrade>Control plane upgrade</a><li role=none aria-label="Sidecar upgrade"><a href=#sidecar-upgrade>Sidecar upgrade</a></ol></li><li role=none aria-label="Migrating per-service mutual TLS enablement via annotations to authentication policy"><a href=#migrating-per-service-mutual-tls-enablement-via-annotations-to-authentication-policy>Migrating per-service mutual TLS enablement via annotations to authentication policy</a><li role=none aria-label="Migrating the mtls_excluded_services configuration to destination rules"><a href=#migrating-the-mtls-excluded-services-configuration-to-destination-rules>Migrating the <code>mtls_excluded_services</code> configuration to destination rules</a><li role=none aria-label="Migrating from RbacConfig to ClusterRbacConfig"><a href=#migrating-from-rbacconfig-to-clusterrbacconfig>Migrating from <code>RbacConfig</code> to <code>ClusterRbacConfig</code></a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><p>Follow this flow to upgrade an existing Istio deployment, including both the
control plane and the sidecar proxies, to a new release of Istio. The upgrade
process may install new binaries and may change configuration and API schemas.
The upgrade process may result in service downtime. To minimize downtime,
please ensure your Istio control plane components and your applications are
highly available with multiple replicas (as multi-replica Citadel is still
under development, Citadel should be deployed with one replica).</p><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.2/img/icons.svg#callout-warning"/></svg></div><div class=content>Citadel does not support multiple instances. Running multiple Citadel instances
may introduce race conditions and lead to system outages.</div></aside></div><p>This flow assumes that the Istio components are installed and upgraded in the
<code>istio-system</code> namespace.</p><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.2/img/icons.svg#callout-warning"/></svg></div><div class=content>Be sure to check out the <a href=/v1.2/docs/setup/kubernetes/upgrade/notice>upgrade notice</a> for a concise list of things you should know before
upgrading your deployment to Istio 1.1.</div></aside></div><h2 id=upgrade-steps>Upgrade steps</h2><p><a href=/v1.2/docs/setup/kubernetes/#downloading-the-release>Download the new Istio release</a>
and change directory to the new release directory.</p><h3 id=istio-cni-upgrade>Istio CNI upgrade</h3><p>If you have installed or are planning to install <a href=/v1.2/docs/setup/kubernetes/additional-setup/cni/>Istio CNI</a>,
choose one of the following <strong>mutually exclusive</strong> options to check whether
Istio CNI is already installed and to upgrade it:</p><div id=tabset-docs-setup-kubernetes-upgrade-steps-1 role=tablist class=tabset><div class=tab-strip data-cookie-name=controlplaneupdate><button aria-selected=true data-cookie-value=k8supdate aria-controls=tabset-docs-setup-kubernetes-upgrade-steps-1-0-panel id=tabset-docs-setup-kubernetes-upgrade-steps-1-0-tab role=tab><span>Kubernetes rolling update</span>
</button><button tabindex=-1 data-cookie-value=helmupgrade aria-controls=tabset-docs-setup-kubernetes-upgrade-steps-1-1-panel id=tabset-docs-setup-kubernetes-upgrade-steps-1-1-tab role=tab><span>Helm upgrade</span></button></div><div class=tab-content><div id=tabset-docs-setup-kubernetes-upgrade-steps-1-0-panel role=tabpanel tabindex=0 aria-labelledby=tabset-docs-setup-kubernetes-upgrade-steps-1-0-tab><p>You can use Kubernetes’ rolling update mechanism to upgrade the Istio CNI components.
This is suitable for cases where <code>kubectl apply</code> was used to deploy Istio CNI.</p><ol><li><p>To check whether <code>istio-cni</code> is installed, search for <code>istio-cni-node</code> pods
and in which namespace they are running (typically, <code>kube-system</code> or <code>istio-system</code>):</p><pre><code class=language-bash data-expandlinks=true>$ kubectl get pods -l k8s-app=istio-cni-node --all-namespaces
$ NAMESPACE=$(kubectl get pods -l k8s-app=istio-cni-node --all-namespaces --output=&#39;jsonpath={.items[0].metadata.namespace}&#39;)
</code></pre></li><li><p>If <code>istio-cni</code> is currently installed in a namespace other than <code>kube-system</code>
(for example, <code>istio-system</code>), delete <code>istio-cni</code>:</p><pre><code class=language-bash data-expandlinks=true>$ helm template install/kubernetes/helm/istio-cni --name=istio-cni --namespace=$NAMESPACE | kubectl delete -f -
</code></pre></li><li><p>Install or upgrade <code>istio-cni</code> in the <code>kube-system</code> namespace:</p><pre><code class=language-bash data-expandlinks=true>$ helm template install/kubernetes/helm/istio-cni --name=istio-cni --namespace=kube-system | kubectl apply -f -
</code></pre></li></ol></div><div hidden id=tabset-docs-setup-kubernetes-upgrade-steps-1-1-panel role=tabpanel tabindex=0 aria-labelledby=tabset-docs-setup-kubernetes-upgrade-steps-1-1-tab><p>If you installed Istio CNI using <a href=/v1.2/docs/setup/kubernetes/install/helm/#option-2-install-with-helm-and-tiller-via-helm-install>Helm and Tiller</a>,
the preferred upgrade option is to let Helm take care of the upgrade.</p><ol><li><p>Check whether <code>istio-cni</code> is installed, and in which namespace:</p><pre><code class=language-bash data-expandlinks=true>$ helm status istio-cni
</code></pre></li><li><p>(Re-)install or upgrade <code>istio-cni</code> depending on the status:</p><ul><li><p>If <code>istio-cni</code> is not currently installed and you decide to install it:</p><pre><code class=language-bash data-expandlinks=true>$ helm install install/kubernetes/helm/istio-cni --name istio-cni --namespace kube-system
</code></pre></li><li><p>If <code>istio-cni</code> is currently installed in a namespace other than <code>kube-system</code>
(for example, <code>istio-system</code>), delete it:</p><pre><code class=language-bash data-expandlinks=true>$ helm delete --purge istio-cni
</code></pre><p>Then install it again in the <code>kube-system</code> namespace:</p><pre><code class=language-bash data-expandlinks=true>$ helm install install/kubernetes/helm/istio-cni --name istio-cni --namespace kube-system
</code></pre></li><li><p>If <code>istio-cni</code> is currently installed in the <code>kube-system</code> namespace, upgrade it:</p><pre><code class=language-bash data-expandlinks=true>$ helm upgrade istio-cni install/kubernetes/helm/istio-cni --namespace kube-system
</code></pre></li></ul></li></ol></div></div></div><h3 id=control-plane-upgrade>Control plane upgrade</h3><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.2/img/icons.svg#callout-warning"/></svg></div><div class=content><p>Helm has significant problems when upgrading CRDs using Tiller.
We believe we have solved these with the introduction of the <code>istio-init</code> chart.
However, because of the wide variety of Helm and Tiller versions used with previous Istio deployments,
ranging from 2.7.2 to 2.12.2, we recommend an abundance of caution by
backing up your custom resource data, before proceeding with the upgrade:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl get crds | grep &#39;istio.io\|certmanager.k8s.io&#39; | cut -f1-1 -d &#34;.&#34; | \
xargs -n1 -I{} sh -c &#34;kubectl get --all-namespaces -oyaml {}; echo ---&#34; &gt; $HOME/ISTIO_1_0_RESTORE_CRD_DATA.yaml
</code></pre></div></aside></div><p>The Istio control plane components include: Citadel, Ingress gateway, Egress gateway, Pilot, Galley, Policy, Telemetry and
Sidecar injector. Choose one of the following two <strong>mutually exclusive</strong> options to update the control plane:</p><div id=tabset-docs-setup-kubernetes-upgrade-steps-2 role=tablist class=tabset><div class=tab-strip data-cookie-name=controlplaneupdate><button aria-selected=true data-cookie-value=k8supdate aria-controls=tabset-docs-setup-kubernetes-upgrade-steps-2-0-panel id=tabset-docs-setup-kubernetes-upgrade-steps-2-0-tab role=tab><span>Kubernetes rolling update</span>
</button><button tabindex=-1 data-cookie-value=helmupgrade aria-controls=tabset-docs-setup-kubernetes-upgrade-steps-2-1-panel id=tabset-docs-setup-kubernetes-upgrade-steps-2-1-tab role=tab><span>Helm upgrade</span></button></div><div class=tab-content><div id=tabset-docs-setup-kubernetes-upgrade-steps-2-0-panel role=tabpanel tabindex=0 aria-labelledby=tabset-docs-setup-kubernetes-upgrade-steps-2-0-tab><p>You can use Kubernetes’ rolling update mechanism to upgrade the control plane components.
This is suitable for cases where <code>kubectl apply</code> was used to deploy the Istio components,
including configurations generated using
<a href=/v1.2/docs/setup/kubernetes/install/helm/#option-1-install-with-helm-via-helm-template>helm template</a>.</p><ol><li><p>Use <code>kubectl apply</code> to upgrade all the Istio&rsquo;s CRDs. Wait a few seconds for the Kubernetes API server to receive the upgraded CRDs:</p><pre><code class=language-bash data-expandlinks=true>$ for i in install/kubernetes/helm/istio-init/files/crd*yaml; do kubectl apply -f $i; done
</code></pre></li><li><p>Add Istio&rsquo;s core components to a Kubernetes manifest file, for example.</p><pre><code class=language-bash data-expandlinks=true>$ helm template install/kubernetes/helm/istio --name istio \
--namespace istio-system &gt; $HOME/istio.yaml
</code></pre><p>If you want to enable <a href=/v1.2/docs/concepts/security/#mutual-tls-authentication>global mutual TLS</a>, set <code>global.mtls.enabled</code> and <code>global.controlPlaneSecurityEnabled</code> to <code>true</code> for the last command:</p><pre><code class=language-bash data-expandlinks=true>$ helm template install/kubernetes/helm/istio --name istio --namespace istio-system \
--set global.mtls.enabled=true --set global.controlPlaneSecurityEnabled=true &gt; $HOME/istio-auth.yaml
</code></pre><p>If Istio CNI is installed, enable it by adding the <code>--set istio_cni.enabled=true</code> setting.</p></li><li><p>Upgrade the Istio control plane components via the manifest, for example:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl apply -f $HOME/istio.yaml
</code></pre><p>or</p><pre><code class=language-bash data-expandlinks=true>$ kubectl apply -f $HOME/istio-auth.yaml
</code></pre></li></ol><p>The rolling update process will upgrade all deployments and configmaps to the new version. After this process finishes,
your Istio control plane should be updated to the new version. Your existing application should continue to work without
any change. If there is any critical issue with the new control plane, you can rollback the changes by applying the yaml files from the old version.</p></div><div hidden id=tabset-docs-setup-kubernetes-upgrade-steps-2-1-panel role=tabpanel tabindex=0 aria-labelledby=tabset-docs-setup-kubernetes-upgrade-steps-2-1-tab><p>If you installed Istio using <a href=/v1.2/docs/setup/kubernetes/install/helm/#option-2-install-with-helm-and-tiller-via-helm-install>Helm and Tiller</a>,
the preferred upgrade option is to let Helm take care of the upgrade.</p><ol><li><p>Upgrade the <code>istio-init</code> chart to update all the Istio <a href=https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/#customresourcedefinitions>Custom Resource Definitions</a> (CRDs).</p><pre><code class=language-bash data-expandlinks=true>$ helm upgrade --install --force istio-init install/kubernetes/helm/istio-init --namespace istio-system
</code></pre></li><li><p>Check that all the CRD creation jobs completed successfully to verify that the Kubernetes API server received all the CRDs:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl get job --namespace istio-system | grep istio-init-crd
</code></pre></li><li><p>Upgrade the <code>istio</code> chart:</p><pre><code class=language-bash data-expandlinks=true>$ helm upgrade istio install/kubernetes/helm/istio --namespace istio-system
</code></pre><p>If Istio CNI is installed, enable it by adding the <code>--set istio_cni.enabled=true</code> setting.</p></li></ol></div></div></div><h3 id=sidecar-upgrade>Sidecar upgrade</h3><p>After the control plane upgrade, the applications already running Istio will still be using an older sidecar. To upgrade the sidecar, you will need to re-inject it.</p><p>If you&rsquo;re using automatic sidecar injection, you can upgrade the sidecar
by doing a rolling update for all the pods, so that the new version of the
sidecar will be automatically re-injected. There are some tricks to reload
all pods. E.g. There is a sample <a href=https://github.com/truongnh1992/playing-with-istio/blob/master/upgrade-sidecar.sh>bash script</a>
which triggers the rolling update by patching the grace termination period.</p><pre><code class=language-bash data-expandlinks=true>$ ./upgrade-sidecar.sh $namespace
</code></pre><p>If you&rsquo;re using manual injection, you can upgrade the
sidecar by executing:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl apply -f &lt;(istioctl kube-inject -f $ORIGINAL_DEPLOYMENT_YAML)
</code></pre><p>If the sidecar was previously injected with some customized inject configuration
files, you will need to change the version tag in the configuration files to the new
version and re-inject the sidecar as follows:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl apply -f &lt;(istioctl kube-inject \
--injectConfigFile inject-config.yaml \
--filename $ORIGINAL_DEPLOYMENT_YAML)
</code></pre><h2 id=migrating-per-service-mutual-tls-enablement-via-annotations-to-authentication-policy>Migrating per-service mutual TLS enablement via annotations to authentication policy</h2><p>If you use service annotations to override global mutual TLS enablement for a service, you need to replace it with
<a href=/v1.2/docs/concepts/security/#authentication-policies>authentication policy</a> and <a href=/v1.2/docs/concepts/traffic-management/#destination-rules>destination rules</a>.</p><p>For example, if you install Istio with mutual TLS enabled, and disable it for service <code>foo</code> using a service annotation like below:</p><pre><code class=language-yaml data-expandlinks=true>kind: Service
metadata:
name: foo
namespace: bar
annotations:
auth.istio.io/8000: NONE
</code></pre><p>You need to replace this with this authentication policy and destination rule (deleting the old annotation is optional)</p><pre><code class=language-yaml data-expandlinks=true>apiVersion: &#34;authentication.istio.io/v1alpha1&#34;
kind: &#34;Policy&#34;
metadata:
name: &#34;disable-mTLS-foo&#34;
namespace: bar
spec:
targets:
- name: foo
ports:
- number: 8000
peers:
---
apiVersion: &#34;networking.istio.io/v1alpha3&#34;
kind: &#34;DestinationRule&#34;
metadata:
name: &#34;disable-mTLS-foo&#34;
namespace: &#34;bar&#34;
spec:
host: &#34;foo&#34;
trafficPolicy:
tls:
mode: ISTIO_MUTUAL
portLevelSettings:
- port:
number: 8000
tls:
mode: DISABLE
</code></pre><p>If you already have destination rules for <code>foo</code>, you must edit that rule instead of creating a new one.
When create a new destination rule, make sure to include other settings, i.e <code>load balancer</code>, <code>connection pool</code> and <code>outlier detection</code> if necessary.
Finally, If <code>foo</code> doesn&rsquo;t have sidecar, you can skip authentication policy, but still need to add destination rule.</p><p>If 8000 is the only port that service <code>foo</code> provides (or you want to disable mutual TLS for all ports), the policies can be simplified as:</p><pre><code class=language-yaml data-expandlinks=true>apiVersion: &#34;authentication.istio.io/v1alpha1&#34;
kind: &#34;Policy&#34;
metadata:
name: &#34;disable-mTLS-foo&#34;
namespace: bar
spec:
targets:
- name: foo
peers:
---
apiVersion: &#34;networking.istio.io/v1alpha3&#34;
kind: &#34;DestinationRule&#34;
metadata:
name: &#34;disable-mTLS-foo&#34;
namespace: &#34;bar&#34;
spec:
host: &#34;foo&#34;
trafficPolicy:
tls:
mode: DISABLE
</code></pre><h2 id=migrating-the-mtls-excluded-services-configuration-to-destination-rules>Migrating the <code>mtls_excluded_services</code> configuration to destination rules</h2><p>If you installed Istio with mutual TLS enabled, and used the mesh configuration option <code>mtls_excluded_services</code> to
disable mutual TLS when connecting to these services (e.g Kubernetes API server), you need to replace this by adding a destination rule. For example:</p><pre><code class=language-yaml data-expandlinks=true>apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: &#34;kubernetes-master&#34;
namespace: &#34;default&#34;
spec:
host: &#34;kubernetes.default.svc.cluster.local&#34;
trafficPolicy:
tls:
mode: DISABLE
</code></pre><h2 id=migrating-from-rbacconfig-to-clusterrbacconfig>Migrating from <code>RbacConfig</code> to <code>ClusterRbacConfig</code></h2><p>The <code>RbacConfig</code> is deprecated due to a <a href=https://github.com/istio/istio/issues/8825>bug</a>. You must
migrate to <code>ClusterRbacConfig</code> if you are currently using <code>RbacConfig</code>. The bug reduces the scope of
the object to be namespace-scoped in some cases. The <code>ClusterRbacConfig</code> follows the exact same
specification as the <code>RbacConfig</code> but with the correct cluster scope implementation.</p><p>To automate the migration, we developed the <code>convert_RbacConfig_to_ClusterRbacConfig.sh</code> script.
The script is included in the <a href=/v1.2/docs/setup/kubernetes/#downloading-the-release>Istio installation package</a>.</p><p>Download and run the script with the following command:</p><pre><code class=language-bash data-expandlinks=true>$ curl -L https://raw.githubusercontent.com/istio/istio/release-1.2/tools/convert_RbacConfig_to_ClusterRbacConfig.sh | sh -
</code></pre><p>The script automates the following operations:</p><ol><li><p>The script creates the cluster RBAC configuration with same specification as the existing RBAC configuration
because Kubernetes doesn&rsquo;t allow the value of <code>kind:</code> in a custom resource to change after it&rsquo;s created.</p><p>For example, if you have the following RBAC configuration:</p><pre><code class=language-yaml data-expandlinks=true>apiVersion: &#34;rbac.istio.io/v1alpha1&#34;
kind: RbacConfig
metadata:
name: default
spec:
mode: &#39;ON_WITH_INCLUSION&#39;
inclusion:
namespaces: [&#34;default&#34;]
</code></pre><p>The script creates the following cluster RBAC configuration:</p><pre><code class=language-yaml data-expandlinks=true>apiVersion: &#34;rbac.istio.io/v1alpha1&#34;
kind: ClusterRbacConfig
metadata:
name: default
spec:
mode: &#39;ON_WITH_INCLUSION&#39;
inclusion:
namespaces: [&#34;default&#34;]
</code></pre></li><li><p>The script applies the configuration and waits for a few seconds to let the configuration to take effect.</p></li><li><p>The script deletes the previous RBAC configuration custom resource after applying the cluster RBAC
configuration successfully.</p></li></ol><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/blog/2019/data-plane-setup/>Demystifying Istio&#39;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=/v1.2/docs/setup/kubernetes/install/helm/>Customizable Install with Helm</a></p><p class=desc>Install and configure Istio for in-depth evaluation or production use.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/setup/kubernetes/platform-setup/docker/>Docker Desktop</a></p><p class=desc>Instructions to setup Docker Desktop for use with Istio.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/setup/kubernetes/getting-started/>Getting Started</a></p><p class=desc>Download, install, and try out Istio.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/examples/multicluster/gke/>Google Kubernetes Engine</a></p><p class=desc>Set up a multicluster mesh over two GKE clusters.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.2/docs/setup/kubernetes/platform-setup/gke/>Google Kubernetes Engine</a></p><p class=desc>Instructions to setup a Google Kubernetes Engine cluster for Istio.</p></div></div></nav></article><nav class=pagenav><div class=left><a title="Important changes operators must understand before upgrading to Istio 1.2." href=/v1.2/docs/setup/kubernetes/upgrade/notice/><svg class="icon"><use xlink:href="/v1.2/img/icons.svg#left-arrow"/></svg>1.2 Upgrade Notice</a></div><div class=right></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="Upgrade steps"><a href=#upgrade-steps>Upgrade steps</a><ol><li role=none aria-label="Istio CNI upgrade"><a href=#istio-cni-upgrade>Istio CNI upgrade</a><li role=none aria-label="Control plane upgrade"><a href=#control-plane-upgrade>Control plane upgrade</a><li role=none aria-label="Sidecar upgrade"><a href=#sidecar-upgrade>Sidecar upgrade</a></ol></li><li role=none aria-label="Migrating per-service mutual TLS enablement via annotations to authentication policy"><a href=#migrating-per-service-mutual-tls-enablement-via-annotations-to-authentication-policy>Migrating per-service mutual TLS enablement via annotations to authentication policy</a><li role=none aria-label="Migrating the mtls_excluded_services configuration to destination rules"><a href=#migrating-the-mtls-excluded-services-configuration-to-destination-rules>Migrating the <code>mtls_excluded_services</code> configuration to destination rules</a><li role=none aria-label="Migrating from RbacConfig to ClusterRbacConfig"><a href=#migrating-from-rbacconfig-to-clusterrbacconfig>Migrating from <code>RbacConfig</code> to <code>ClusterRbacConfig</code></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>
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