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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#cancel-x"/></svg></button></form></nav></header><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="A bunch of resources to help you deploy, configure and use Istio."><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#help"/></svg>Need Help?</div><div class="body default" aria-labelledby=header0><ul role=tree aria-expanded=true aria-labelledby=header0><li role=treeitem aria-label="Operations Guide"><button aria-hidden=true></button><a title="Hints, tips, tricks about running an Istio mesh." href=/v1.1/help/ops/>Operations Guide</a><ul role=group aria-expanded=false><li role=none><a role=treeitem title="Describes how to use component-level logging to get insights into a running component's behavior." href=/v1.1/help/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=/v1.1/help/ops/controlz/>Component Introspection</a></li><li role=none><a role=treeitem title="How to do low-level debugging of Istio components." href=/v1.1/help/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=/v1.1/help/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=/v1.1/help/ops/traffic-management/introduction/>Introduction to Network Operations</a></li><li role=none><a role=treeitem title="Provides specific deployment and configuration guidelines." href=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/ops/telemetry/missing-metrics/>Missing Metrics</a></li><li role=none><a role=treeitem title="Dealing with Grafana issues." href=/v1.1/help/ops/telemetry/grafana/>Grafana</a></li><li role=none><a role=treeitem title="Fine-grained control of Envoy statistics." href=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/ops/setup/validation/>Configuration Validation Webhook</a></li><li role=none><a role=treeitem title="Describes Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.1/help/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=/v1.1/help/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=/v1.1/help/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=/v1.1/help/ops/misc/>Miscellaneous</a></li></ul></li><li role=treeitem aria-label=FAQ><button class=show aria-hidden=true></button><a title="Frequently Asked Questions about Istio." href=/v1.1/help/faq/>FAQ</a><ul role=group aria-expanded=true class=leaf-section><li role=none><a role=treeitem title="General Q & A." href=/v1.1/help/faq/general/>General</a></li><li role=none><a role=treeitem title="Setup Q & A." href=/v1.1/help/faq/setup/>Setup</a></li><li role=none><a role=treeitem title="Security Q & A." href=/v1.1/help/faq/security/>Security</a></li><li role=none><a role=treeitem title="Mixer Q & A." href=/v1.1/help/faq/mixer/>Mixer</a></li><li role=none><a role=treeitem title="Metrics and Logs Q & A." href=/v1.1/help/faq/metrics-and-logs/>Metrics and Logs</a></li><li role=none><a role=treeitem title="Distributed Tracing Q & A." href=/v1.1/help/faq/distributed-tracing/>Distributed Tracing</a></li><li role=none><span role=treeitem class=current title="Traffic Management Q & A.">Traffic Management</span></li></ul></li><li role=none><a role=treeitem title="A glossary of common Istio terms." href=/v1.1/help/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="/v1.1/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.1/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.1/help/ title="A bunch of resources to help you deploy, configure and use Istio.">Help</a></li><li><a href=/v1.1/help/faq/ title="Frequently Asked Questions about Istio.">FAQ</a></li><li>Traffic Management</li></ol></nav><article aria-labelledby=title><div class=title-area><i class=title-icon><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#faq"/></svg></i><div><h1 id=title>Traffic Management FAQ</h1></div></div><nav class="toc-inlined toc-forced"><hr><div class=directory role=directory><nav id=InlineTableOfContents><ol><li role=none aria-label="How can I view the current route rules I have configured with Istio?"><a href=#viewing-current-rules>How can I view the current route rules I have configured with Istio?</a></li><li role=none aria-label="Can I use standard Ingress specification without any route rules?"><a href=#ingress-with-no-route-rules>Can I use standard Ingress specification without any route rules?</a></li><li role=none aria-label="What is the naming convention for port name inside my application deployment file?"><a href=#naming-port-convention>What is the naming convention for port name inside my application deployment file?</a></li></ol></nav></div><hr></nav><div class=faq><h5 id=viewing-current-rules class=question>How can I view the current route rules I have configured with Istio?</h5><div class=answer><p>Rules can be viewed using <code>kubectl get virtualservice -o yaml</code></p></div><h5 id=ingress-with-no-route-rules class=question>Can I use standard Ingress specification without any route rules?</h5><div class=answer><p>Simple ingress specifications, with host, TLS, and exact path based
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matches will work out of the box without the need for route
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rules. However, note that the path used in the ingress resource should
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not have any <code>.</code> characters.</p><p>For example, the following ingress resource matches requests for the
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example.com host, with /helloworld as the URL.</p><pre><code class=language-bash data-expandlinks=true>$ kubectl create -f - <<EOF
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: simple-ingress
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annotations:
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kubernetes.io/ingress.class: istio
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spec:
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rules:
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- host: example.com
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http:
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paths:
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- path: /helloworld
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backend:
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serviceName: myservice
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servicePort: grpc
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EOF
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</code></pre><p>However, the following rules will not work because they use regular
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expressions in the path and <code>ingress.kubernetes.io</code> annotations:</p><pre><code class=language-bash data-expandlinks=true>$ kubectl create -f - <<EOF
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: this-will-not-work
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annotations:
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kubernetes.io/ingress.class: istio
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# Ingress annotations other than ingress class will not be honored
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ingress.kubernetes.io/rewrite-target: /
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spec:
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rules:
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- host: example.com
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http:
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paths:
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- path: /hello(.*?)world/
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backend:
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serviceName: myservice
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servicePort: grpc
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EOF
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</code></pre></div><h5 id=naming-port-convention class=question>What is the naming convention for port name inside my application deployment file?</h5><div class=answer><p>Named ports: Service ports must be named.</p><p>The port names must be of the form <code>protocol</code>-<code>suffix</code> with <code>grpc</code>, <code>http</code>, <code>http2</code>, <code>https</code>, <code>mongo</code>, <code>redis</code>, <code>tcp</code>, <code>tls</code> or <code>udp</code> as the <code>protocol</code> in order to take advantage of Istio’s routing features.</p><p>For example, <code>name: http2-foo</code> or <code>name: http</code> are valid port names, but <code>name: http2foo</code> is not. If the port name does not begin with a recognized prefix or if the port is unnamed, traffic on the port will be treated as plain TCP traffic (unless the port explicitly uses Protocol: UDP to signify a UDP port).</p></div></div></article><nav class=pagenav><div class=left><a title="Distributed Tracing Q & A." href=/v1.1/help/faq/distributed-tracing/><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#left-arrow"/></svg>Distributed Tracing</a></div><div class=right></div></nav><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 1.1.9 now" href=https://github.com/istio/istio/releases/tag/1.1.9 aria-label="Download Istio"><span>download</span><svg class="icon"><use xlink:href="/v1.1/img/icons.svg#download"/></svg>
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1.1.9<br>© 2019 Istio Authors, <a href=https://policies.google.com/privacy>Privacy Policy</a><br>Archived on June 18, 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="/v1.1/img/icons.svg#github"/></svg></a>
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