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<!DOCTYPE html><html lang="en" itemscope itemtype="https://schema.org/WebPage" style="overflow-y: scroll;"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><meta name="title" content="FAQ"><meta name="og:title" content="FAQ"><meta name="og:image" content="/v0.2/img/logo.png"/><meta name="description" content="Common issues, known limitations and work arounds, and other frequently asked questions on this topic."><meta name="og:description" content="Common issues, known limitations and work arounds, and other frequently asked questions on this topic."><title>Istioldie 0.2 / FAQ</title><script> window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date; ga('create', 'UA-98480406-2', 'auto'); ga('send', 'pageview'); </script> <script async src='https://www.google-analytics.com/analytics.js'></script><link rel="alternate" type="application/rss+xml" title="Istio Blog RSS" 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href="/v0.2/docs/reference/">Reference</a></li></ul></div></div></div><script src="/v0.2/js/navtree.js"></script><div class="container docs"><div class="row"><div class="col-md-11 nofloat center-block"><div class="row"><div id="sidebar-container" class="col-sm-3"><ul class="doc-side-nav"><li><h5 class='doc-side-nav-title'>Tasks</h5></li><script type="text/javascript"> var docs = []; docs.push({path: [ "index.md", ], url: "/docs/tasks/", title: "Tasks", order: 20, overview: "Tasks show you how to do a single specific targeted activity with the Istio system."}); docs.push({path: [ "policy-enforcement", "faq.md", ], url: "/docs/tasks/policy-enforcement/faq.html", title: "FAQ", order: 100, overview: "Common issues, known limitations and work arounds, and other frequently asked questions on this topic."}); docs.push({path: [ "policy-enforcement", "index.md", ], url: "/docs/tasks/policy-enforcement/", title: "Policy Enforcement", order: 20, overview: "Describes tasks that demonstrate policy enforcement features."}); docs.push({path: [ "policy-enforcement", "rate-limiting.md", ], url: "/docs/tasks/policy-enforcement/rate-limiting.html", title: "Enabling Rate Limits", order: 10, overview: "This task shows you how to use Istio to dynamically limit the traffic to a service."}); docs.push({path: [ "security", "basic-access-control.md", ], url: "/docs/tasks/security/basic-access-control.html", title: "Setting up Basic Access Control", order: 20, overview: "This task shows how to control access to a service using the Kubernetes labels."}); docs.push({path: [ "security", "faq.md", ], url: "/docs/tasks/security/faq.html", title: "FAQ", order: 100, overview: "Common issues, known limitations and work arounds, and other frequently asked questions on this topic."}); docs.push({path: [ "security", "index.md", ], url: "/docs/tasks/security/", title: "Security", order: 40, overview: "Describes tasks that help securing the service mesh traffic."}); docs.push({path: [ "security", "mutual-tls.md", ], url: "/docs/tasks/security/mutual-tls.html", title: "Testing Istio mutual TLS authentication", order: 10, overview: "This task shows you how to verify and test Istio's automatic mutual TLS authentication."}); docs.push({path: [ "security", "plugin-ca-cert.md", ], url: "/docs/tasks/security/plugin-ca-cert.html", title: "Plugging in CA certificate and key", order: 40, overview: "This task shows how operators can plug existing certificate and key into Istio CA."}); docs.push({path: [ "security", "secure-access-control.md", ], url: "/docs/tasks/security/secure-access-control.html", title: "Setting up Secure Access Control", order: 30, overview: "This task shows how to securely control access to a service using service accounts."}); docs.push({path: [ "telemetry", "distributed-tracing.md", ], url: "/docs/tasks/telemetry/distributed-tracing.html", title: "Distributed Tracing", order: 10, overview: "How to configure the proxies to send tracing requests to Zipkin or Jaeger"}); docs.push({path: [ "telemetry", "faq.md", ], url: "/docs/tasks/telemetry/faq.html", title: "FAQ", order: 100, overview: "Common issues, known limitations and work arounds, and other frequently asked questions on this topic."}); docs.push({path: [ "telemetry", "index.md", ], url: "/docs/tasks/telemetry/", title: "Metrics, Logs, and Traces", order: 30, overview: "Describes tasks that demonstrate how to collect telemetry information from the service mesh."}); docs.push({path: [ "telemetry", "metrics-logs.md", ], url: "/docs/tasks/telemetry/metrics-logs.html", title: "Collecting Metrics and Logs", order: 20, overview: "This task shows you how to configure Istio to collect metrics and logs."}); docs.push({path: [ "telemetry", "querying-metrics.md", ], url: "/docs/tasks/telemetry/querying-metrics.html", title: "Querying Metrics from Prometheus", order: 30, overview: "This task shows you how to query for Istio Metrics using Prometheus."}); docs.push({path: [ "telemetry", "servicegraph.md", ], url: "/docs/tasks/telemetry/servicegraph.html", title: "Generating a Service Graph", order: 50, overview: "This task shows you how to generate a graph of services within an Istio mesh."}); docs.push({path: [ "telemetry", "tcp-metrics.md", ], url: "/docs/tasks/telemetry/tcp-metrics.html", title: "Collecting Metrics for TCP services", order: 25, overview: "This task shows you how to configure Istio to collect metrics for TCP services."}); docs.push({path: [ "telemetry", "using-istio-dashboard.md", ], url: "/docs/tasks/telemetry/using-istio-dashboard.html", title: "Visualizing Metrics with Grafana", order: 40, overview: "This task shows you how to setup and use the Istio Dashboard to monitor mesh traffic."}); docs.push({path: [ "traffic-management", "egress.md", ], url: "/docs/tasks/traffic-management/egress.html", title: "Control Egress Traffic", order: 40, overview: "Describes how to configure Istio to route traffic from services in the mesh to external services."}); docs.push({path: [ "traffic-management", "faq.md", ], url: "/docs/tasks/traffic-management/faq.html", title: "FAQ", order: 100, overview: "Common issues, known limitations and work arounds, and other frequently asked questions on this topic."}); docs.push({path: [ "traffic-management", "fault-injection.md", ], url: "/docs/tasks/traffic-management/fault-injection.html", title: "Fault Injection", order: 20, overview: "This task shows how to inject delays and test the resiliency of your application."}); docs.push({path: [ "traffic-management", "index.md", ], url: "/docs/tasks/traffic-management/", title: "Traffic Management", order: 10, overview: "Describes tasks that demonstrate traffic routing features of Istio service mesh."}); docs.push({path: [ "traffic-management", "ingress.md", ], url: "/docs/tasks/traffic-management/ingress.html", title: "Istio Ingress Controller", order: 30, overview: "Describes how to configure the Istio ingress controller on Kubernetes."}); docs.push({path: [ "traffic-management", "request-routing.md", ], url: "/docs/tasks/traffic-management/request-routing.html", title: "Configuring Request Routing", order: 10, overview: "This task shows you how to configure dynamic request routing based on weights and HTTP headers."}); docs.push({path: [ "traffic-management", "request-timeouts.md", ], url: "/docs/tasks/traffic-management/request-timeouts.html", title: "Setting Request Timeouts", order: 28, overview: "This task shows you how to setup request timeouts in Envoy using Istio."}); docs.push({path: [ "traffic-management", "traffic-shifting.md", ], url: "/docs/tasks/traffic-management/traffic-shifting.html", title: "Traffic Shifting", order: 25, overview: "This task shows you how to migrate traffic from an old to new version of a service."}); genNavBarTree(docs) </script></ul></div><div id="tab-container" class="col-xs-1 tab-neg-margin pull-left"> <a id="sidebar-tab" class="glyphicon glyphicon-chevron-left" href="javascript:void 0;"></a></div><div id="content-container" class="thin-left-border col-sm-9 markdown"><div id="toc" class="toc"></div><div id="doc-content"><h1>FAQ</h1><ul><li><p><em>How can I view the current rules I have configured with Istio?</em></p><p>Rules can be viewed using <code>istioctl get routerules -o yaml</code> or <code>kubectl get routerules -o yaml</code>.</p></li><li><p><em>I created a weighted Route Rule to split traffic between two versions of a service but I am not seeing the expected behavior.</em></p><p>For the current Envoy sidecar implementation, up to 100 requests may be required for the desired distribution to be observed.</p></li><li><p><em>How come some of my services are unreachable after creating Route Rules?</em></p><p>This is an known issue with the current Envoy sidecar implementation. After two seconds of creating the rule, services should become available.</p></li><li><p><em>Can I use standard Ingress specification without any route rules?</em></p><p>Simple ingress specifications, with host, TLS, and exact path based matches will work out of the box without the need for route rules. However, note that the path used in the ingress resource should not have any <code>.</code> characters.</p><p>For example, the following ingress resource matches requests for example.com host, with /helloworld as the URL.</p><pre><code class="language-bash">cat <<EOF | kubectl create -f -
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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 it uses regular expressions in the path and uses <code>ingress.kubernetes.io</code> annotations.</p><pre><code class="language-bash">cat <<EOF | kubectl create -f -
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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></li></ul></div></div></div></div></div></div><script src="/v0.2/js/sidemenu.js"></script><footer><div class="container"><div class="row"><div class="col-md-2"></div><div class="col-md-3 col-sm-4 col-xs-12 center-block"><ul class="toggle"><p class="header">Docs</p><li><a href="/v0.2/docs/">Welcome</a></li><li><a href="/v0.2/docs/concepts">Concepts</a></li><li><a href="/v0.2/docs/setup">Setup</a></li><li><a href="/v0.2/docs/tasks">Tasks</a></li><li><a href="/v0.2/docs/guides">Guides</a></li><li><a href="/v0.2/docs/reference">Reference</a></li></ul></div><hr class="footer-sections" /><div class="col-md-3 col-sm-4 col-xs-12 center-block"><ul class="toggle"><p class="header">Resources</p><li><a href="/v0.2/faq">Frequently Asked Questions</a></li><li><a href="/v0.2/troubleshooting">Troubleshooting Guide</a></li><li><a href="/v0.2/bugs">Report a Bug</a></li><li><a href="https://github.com/istio/istio.github.io/issues/new?title=Issue with _docs/tasks/traffic-management/faq.md">Report a Doc Issue</a></li><li><a href="https://github.com/istio/istio.github.io/edit/master/_docs/tasks/traffic-management/faq.md">Edit This Page on GitHub</a></li></ul></div><hr class="footer-sections" /><div class="col-md-3 col-sm-4 col-xs-12 center-block"><ul class="toggle"><p class="header">Community</p><li><a href="https://groups.google.com/forum/#!forum/istio-users" target="_blank"><span class="group">User</span></a> | <a href="https://groups.google.com/forum/#!forum/istio-dev" target="_blank">Dev</a> | <a href="https://github.com/istio/istio/blob/master/GROUPS.md#working-groups" target="_blank">Working Group Lists</a></li><li><a href="https://twitter.com/IstioMesh" target="_blank"><span class="twitter">Twitter</span></a></li><li><a href="https://github.com/istio/istio" target="_blank"><span class="github">GitHub</span></a></li></ul></div><div class="col-md-1"></div></div><div class="row"><p class="description small text-center"> Istio 0.2, Copyright © 2017 Istio Authors<br> Archived on 12-Nov-2017</p></div></div></footer><script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.15.0/jquery.validate.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.form/4.2.1/jquery.form.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-visible/1.2.0/jquery.visible.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.6.0/slick.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/1.7.1/clipboard.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <script src="/v0.2/js/common.js"></script> <script src="/v0.2/js/buttons.js"></script> <script src="/v0.2/js/search.js"></script> <script src="/v0.2/js/prism.js"></script></body></html>
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