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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon"><use xlink:href="/v1.7/img/icons.svg#cancel-x"/></svg></button></form></nav></header><div class=banner-container></div><main class="primary notoc"><div id=sidebar-container class="sidebar-container sidebar-offcanvas"><nav id=sidebar aria-label="Section Navigation"><div class=directory><div class=card><div id=header0 class=header title="Frequently Asked Questions about Istio."><svg class="icon"><use xlink:href="/v1.7/img/icons.svg#faq"/></svg>FAQ</div><div class="body default" aria-labelledby=header0><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=header0><li role=none><a role=treeitem title="General Q & A." href=/v1.7/faq/general/>General</a></li><li role=none><a role=treeitem title="Setup Q & A." href=/v1.7/faq/setup/>Setup</a></li><li role=none><a role=treeitem title="Application Specific Q & A." href=/v1.7/faq/applications/>Applications</a></li><li role=none><a role=treeitem title="Security Q & A." href=/v1.7/faq/security/>Security</a></li><li role=none><a role=treeitem title="Metrics and Logs Q & A." href=/v1.7/faq/metrics-and-logs/>Metrics and Logs</a></li><li role=none><a role=treeitem title="Distributed Tracing Q & A." href=/v1.7/faq/distributed-tracing/>Distributed Tracing</a></li><li role=none><a role=treeitem title="Traffic Management Q & A." href=/v1.7/faq/traffic-management/>Traffic Management</a></li></ul></div></div></div></nav></div><div class=article-container><nav aria-label=Breadcrumb><ol><li><a href=/v1.7/ title="Connect, secure, control, and observe services.">Istio</a></li><li>FAQ</li></ol></nav><article aria-labelledby=title><div class=title-area><i class=title-icon><svg class="icon"><use xlink:href="/v1.7/img/icons.svg#faq"/></svg></i><div style=width:100%><h1 id=title>FAQ</h1></div></div><p>You’ve got questions? We’ve got answers!</p><div class=faq-landing><div><div class=panel><div class=header>General</div><nav class=body><ul aria-label=General><li role=none><a href=/v1.7/faq/general/#what-is-istio>What is Istio?</a></li><li role=none><a href=/v1.7/faq/general/#why-use-istio>Why would I want to use Istio?</a></li><li role=none><a href=/v1.7/faq/general/#how-do-i-get-started>How do I get started using Istio?</a></li><li role=none><a href=/v1.7/faq/general/#what-is-the-license>What is the license?</a></li><li role=none><a href=/v1.7/faq/general/#how-was-istio-started>How was Istio started?</a></li><li role=none><a href=/v1.7/faq/general/#what-deployment-environment>What deployment environments are supported?</a></li><li role=none><a href=/v1.7/faq/general/#how-do-i-contribute>How can I contribute?</a></li><li role=none><a href=/v1.7/faq/general/#where-is-the-documentation>Where is the documentation?</a></li><li role=none><a href=/v1.7/faq/general/#istio-doesnt-work>Istio doesn't work - what do I do?</a></li><li role=none><a href=/v1.7/faq/general/#roadmap>What is Istio's roadmap?</a></li><li role=none><a href=/v1.7/faq/general/#what-does-istio-mean>What does the word 'Istio' mean?</a></li><li role=none><a href=/v1.7/faq/general/#how-to-join-slack>How can I join the Istio Slack workspace?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Setup</div><nav class=body><ul aria-label=Setup><li role=none><a href=/v1.7/faq/setup/#k8s-sidecar-injection-not-working>Kubernetes - How can I debug problems with automatic sidecar injection?</a></li><li role=none><a href=/v1.7/faq/setup/#k8s-migrating>Kubernetes - Can I migrate an existing installation from Istio 0.1.x to 0.2.x?</a></li><li role=none><a href=/v1.7/faq/setup/#consul-app-not-working>Consul - My application isn't working, where can I troubleshoot this?</a></li><li role=none><a href=/v1.7/faq/setup/#consul-unset-context>Consul - How do I unset the context changed by kubectl at the end?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Applications</div><nav class=body><ul aria-label=Applications><li role=none><a href=/v1.7/faq/applications/#nifi>Can I run Apache NiFi inside an Istio mesh?</a></li><li role=none><a href=/v1.7/faq/applications/#cassandra>Can I run Cassandra inside an Istio mesh?</a></li><li role=none><a href=/v1.7/faq/applications/#elasticsearch>Can I run Elasticsearch inside an Istio mesh?</a></li><li role=none><a href=/v1.7/faq/applications/#redis>Can I run Redis inside an Istio mesh?</a></li><li role=none><a href=/v1.7/faq/applications/#zookeeper>Can I run Zookeeper inside an Istio mesh?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Security</div><nav class=body><ul aria-label=Security><li role=none><a href=/v1.7/faq/security/#enabling-disabling-mtls>How can I enable/disable mutual TLS after I installed Istio?</a></li><li role=none><a href=/v1.7/faq/security/#auth-mix-and-match>Can I enable mutual TLS for some services while leaving it disabled for other services in the same cluster?</a></li><li role=none><a href=/v1.7/faq/security/#verify-mtls-encryption>How can I verify that traffic is using mutual TLS encryption?</a></li><li role=none><a href=/v1.7/faq/security/#non-istio-to-istio>If mutual TLS is globally enabled, can non-Istio services access Istio services?</a></li><li role=none><a href=/v1.7/faq/security/#accessing-non-istio-services>How can services that use Istio access non-Istio services?</a></li><li role=none><a href=/v1.7/faq/security/#k8s-health-checks>How can I use Kubernetes liveness and readiness for pod health checks when mutual TLS is enabled?</a></li><li role=none><a href=/v1.7/faq/security/#cert-lifetime-config>How to configure the lifetime for Istio certificates?</a></li><li role=none><a href=/v1.7/faq/security/#mysql-with-mtls>MySQL Connectivity Troubleshooting</a></li><li role=none><a href=/v1.7/faq/security/#does-istio-support-authorization>Does Istio support authorization?</a></li><li role=none><a href=/v1.7/faq/security/#use-k8s-secrets>Does Istio authentication use Kubernetes secrets?</a></li><li role=none><a href=/v1.7/faq/security/#secret-encryption>Is the secret encrypted for workload key and cert?</a></li><li role=none><a href=/v1.7/faq/security/#secure-ingress>How to configure Istio Ingress to only accept TLS traffic?</a></li><li role=none><a href=/v1.7/faq/security/#https-overlay>Can I install Istio sidecar for HTTPS services?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Metrics and Logs</div><nav class=body><ul aria-label="Metrics and Logs"><li role=none><a href=/v1.7/faq/metrics-and-logs/#accessing-telemetry-via-rest>Can Istio metrics be accessed through REST?</a></li><li role=none><a href=/v1.7/faq/metrics-and-logs/#telemetry-v1-vs-v2>What are the differences in telemetry reported by in-proxy telemetry (aka v2) and Mixer-based telemetry (aka v1)?</a></li><li role=none><a href=/v1.7/faq/metrics-and-logs/#controlling-what-the-sidecar-reports>How can I control the data being reported by the sidecar?</a></li><li role=none><a href=/v1.7/faq/metrics-and-logs/#prometheus-for-non-k8s>Can the Prometheus adapter be used in non-Kubernetes environments?</a></li><li role=none><a href=/v1.7/faq/metrics-and-logs/#life-of-a-request>How to figure out what happened to a request in Istio?</a></li><li role=none><a href=/v1.7/faq/metrics-and-logs/#prometheus-application-metrics>Can I use Prometheus to scrape application metrics with Istio?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Distributed Tracing</div><nav class=body><ul aria-label="Distributed Tracing"><li role=none><a href=/v1.7/faq/distributed-tracing/#how-distributed-tracing-works>How does distributed tracing work with Istio?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#how-to-support-tracing>What is required for distributed tracing with Istio?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#how-envoy-based-tracing-works>How does Envoy-based tracing work?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#how-mixer-based-tracing-works>How does Mixer-based tracing work?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#minimal-requirements>What is the minimal Istio configuration required for distributed tracing?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#initial-zipkin-header>What generates the initial Zipkin (B3) HTTP headers?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#istio-copy-headers>Why can't Istio propagate headers instead of the application?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#no-tracing>Why are my requests not being traced?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#control-sampling>How can I control the volume of traces?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#disabling-tracing>How do I disable tracing?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#external-zipkin>Can Istio send tracing information to an external Zipkin-compatible backend?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#vert.x>Does Istio support request tracing for vert.x event bus messages?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#mixer-role>What role does Mixer play in the Istio tracing story?</a></li><li role=none><a href=/v1.7/faq/distributed-tracing/#why-mixer-spans>Why do I see `istio-mixer` spans in some of my distributed traces?</a></li></ul></nav></div></div><div><div class=panel><div class=header>Traffic Management</div><nav class=body><ul aria-label="Traffic Management"><li role=none><a href=/v1.7/faq/traffic-management/#viewing-current-rules>How can I view the current route rules I have configured with Istio?</a></li><li role=none><a href=/v1.7/faq/traffic-management/#controlling-inbound-ports>On what ports does a sidecar proxy capture inbound traffic?</a></li><li role=none><a href=/v1.7/faq/traffic-management/#ingress-with-no-route-rules>Can I use standard Ingress specification without any route rules?</a></li><li role=none><a href=/v1.7/faq/traffic-management/#naming-port-convention>What protocols does Istio support?</a></li></ul></nav></div></div></div></article><div id=endnotes-container aria-hidden=true><h2>Links</h2><ol id=endnotes></ol></div></div></main><footer><div class=user-links><a class=channel title="Go download Istio 1.7.4 now" href=/v1.7/docs/setup/getting-started/#download aria-label="Download Istio"><span>download</span><svg class="icon"><use xlink:href="/v1.7/img/icons.svg#download"/></svg>
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1.7.4<br>© 2020 Istio Authors, <a href=https://policies.google.com/privacy>Privacy Policy</a><br>Archived on November 19, 2020</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="/v1.7/img/icons.svg#github"/></svg></a>
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