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Need Help?</div></div><div role=tabpanel aria-labelledby=header0><div class=card-body><ul class=tree><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-right"></i><a title="Hints, tips, tricks about running an Istio mesh." href=/v1.0/help/ops/>Operations Guide</a></label><ul class="tree collapse"><li><a title="Describes how to use component-level logging to get insights into a running component's behavior." href=/v1.0/help/ops/component-logging/>Component Logging</a></li><li><a title="Describes how to use ControlZ to get insight into individual running components." href=/v1.0/help/ops/controlz/>Component Introspection</a></li><li><a title="How to do low-level debugging of Istio components." href=/v1.0/help/ops/component-debugging/>Component Debugging</a></li><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-right"></i><a title="Helps you manage the networking aspects of a running mesh." href=/v1.0/help/ops/traffic-management/>Traffic Management</a></label><ul class="tree collapse"><li><a title="Demonstrates how to debug Pilot and Envoy." href=/v1.0/help/ops/traffic-management/proxy-cmd/>Debugging Envoy and Pilot</a></li><li><a title="Provides specific deployment and configuration guidelines." href=/v1.0/help/ops/traffic-management/deploy-guidelines/>Deployment and Configuration Guidelines</a></li><li><a title="An introduction to Istio networking operational aspects." href=/v1.0/help/ops/traffic-management/introduction/>Introduction to Network Operations</a></li><li><a title="Describes tools and techniques to observe traffic management or issues related to traffic management." href=/v1.0/help/ops/traffic-management/observing/>Observing Traffic Management</a></li><li><a title="Describes tools and techniques that can be used to root cause networking issues." href=/v1.0/help/ops/traffic-management/troubleshooting/>Troubleshooting Networking Issues</a></li></ul></li><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-right"></i><a title="Helps you manage the security aspects of a running mesh." href=/v1.0/help/ops/security/>Security</a></label><ul class="tree collapse"><li><a title="Demonstrates how to debug authorization." href=/v1.0/help/ops/security/debugging-authorization/>Debugging Authorization</a></li><li><a title="What to do if Citadel is not behaving properly." href=/v1.0/help/ops/security/repairing-citadel/>Repairing Citadel</a></li><li><a title="What to do if you suspect problems with Istio keys and certificates." href=/v1.0/help/ops/security/keys-and-certs/>Keys and Certificates</a></li><li><a title="What to do if mutual TLS authentication isn't working." href=/v1.0/help/ops/security/mutual-tls/>Mutual TLS</a></li><li><a title="How to get health checks working when mutual TLS is enabled." href=/v1.0/help/ops/security/health-checks-and-mtls/>Health Checks and Mutual TLS</a></li><li><a title="Authorization is enabled, but requests make it through anyway." href=/v1.0/help/ops/security/authorization-permissive/>Authorization Too Permissive</a></li><li><a title="Authorization is enabled and no requests make it through to the service." href=/v1.0/help/ops/security/authorization-restrictive/>Authorization Too Restrictive</a></li><li><a title="What to do if end-user authentication doesn't work." href=/v1.0/help/ops/security/end-user-auth/>End User Authentication</a></li></ul></li><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-right"></i><a title="Helps you manage telemetry collection and visualization in a running mesh." href=/v1.0/help/ops/telemetry/>Telemetry</a></label><ul class="tree collapse"><li><a href=/v1.0/help/ops/telemetry/missing-metrics/>Missing Metrics</a></li><li><a title="Dealing with Grafana issues." href=/v1.0/help/ops/telemetry/grafana/>Grafana</a></li></ul></li><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-right"></i><a title="Helps you diagnose and repair Istio installations." href=/v1.0/help/ops/setup/>Installation and Setup</a></label><ul class="tree collapse"><li><a title="Provides a general overview of Istio's use of Kubernetes webhooks and the related issues that can arise." href=/v1.0/help/ops/setup/webhook/>Dynamic Admission Webhooks Overview</a></li><li><a title="Describes Istio's use of Kubernetes webhooks for server-side configuration validation." href=/v1.0/help/ops/setup/validation/>Configuration Validation Webhook</a></li><li><a title="Describes Istio's use of Kubernetes webhooks for automatic sidecar injection." href=/v1.0/help/ops/setup/injection/>Sidecar Injection Webhook</a></li></ul></li><li><a title="Advice on tackling common problems with Istio." href=/v1.0/help/ops/misc/>Miscellaneous</a></li></ul></li><li class=sublist><label class=tree-toggle><i class="fa fa-lg fa-caret-down"></i><a title="Frequently Asked Questions about Istio." href=/v1.0/help/faq/>FAQ</a></label><ul class=tree><li><span class=current title="General Q & A.">General</span></li><li><a title="Setup Q & A." href=/v1.0/help/faq/setup/>Setup</a></li><li><a title="Security Q & A." href=/v1.0/help/faq/security/>Security</a></li><li><a title="Mixer Q & A." href=/v1.0/help/faq/mixer/>Mixer</a></li><li><a title="Telemetry Q & A." href=/v1.0/help/faq/telemetry/>Telemetry</a></li><li><a title="Traffic Management Q & A." href=/v1.0/help/faq/traffic-management/>Traffic Management</a></li></ul></li><li><a title="A glossary of common Istio terms." href=/v1.0/help/glossary/>Glossary</a></li></ul></div></div></div></div></nav></div><div class="col-12 col-md-9 col-xl-10"><p class=d-md-none><label class=sidebar-toggler data-toggle=offcanvas><i class="fa fa-sign-out-alt"></i></label></p><main aria-labelledby=title><div class=pagenav><p><a href=/v1.0/help/faq/ title="Frequently Asked Questions about Istio."><i style=transform:scaleX(-1) class="fa fa-level-up-alt"></i>&nbsp;FAQ</a></p></div><h1 id=title><img src=/v1.0/img/faq.svg alt=Icon class=page_icon>
General FAQ</h1><nav class="toc-inlined d-xl-none d-print-none" style=display:block!important><hr><div class=directory role=directory><nav id=InlineTableOfContents><ul><li><a href=#what-is-istio>What is Istio?</a></li><li><a href=#why-use-istio>Why would I want to use Istio?</a></li><li><a href=#how-do-i-get-started>How do I get started using Istio?</a></li><li><a href=#what-is-the-license>What is the license?</a></li><li><a href=#how-was-istio-started>How was Istio started?</a></li><li><a href=#what-deployment-environment>What deployment environments are supported?</a></li><li><a href=#how-do-i-contribute>How can I contribute?</a></li><li><a href=#istio-partners-and-vendors>How can I discover more about Partner and Vendor opportunities?</a></li><li><a href=#where-is-the-documentation>Where is the documentation?</a></li><li><a href=#istio-doesnt-work>Istio doesn't work - what do I do?</a></li><li><a href=#roadmap>What is Istio's roadmap?</a></li><li><a href=#what-does-istio-mean>What does the word 'Istio' mean?</a></li></ul></nav></div><hr></nav><div class=faq><h5 id=what-is-istio class=question>What is Istio?</h5><div class=answer><p>Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection.</p><p><em>Open</em>: Istio is being developed and maintained as open-source software. We encourage contributions and feedback from the community at-large.</p><p><em>Platform-independent</em>: Istio is not targeted at any specific deployment environment. During the initial stages of development, Istio will support
Kubernetes-based deployments. However, Istio is being built to enable rapid and easy adaptation to other environments.</p><p><em>Service mesh</em>: Istio is designed to manage communications between microservices and applications. Without requiring changes to the underlying services, Istio provides automated baseline traffic resilience, service metrics collection, distributed tracing, traffic encryption, protocol upgrades, and advanced routing functionality for all service-to-service communication.</p><p>For more detail, please see: <a href=/v1.0/docs/concepts/what-is-istio/>What is Istio?</a></p></div><h5 id=why-use-istio class=question>Why would I want to use Istio?</h5><div class=answer><p>Traditionally, much of the logic handled by Istio has been built directly into applications. Across a fleet of services, managing updates to this communications logic can be a large burden. Istio provides an infrastructure-level solution to managing service communications.</p><p><em>Application developers</em>: With Istio managing how traffic flows across their services, developers can focus exclusively on business logic and iterate quickly on new features.</p><p><em>Service operators</em>: Istio enables policy enforcement and mesh monitoring from a single centralized control point, independent of application evolution. As a result, operators can ensure continuous policy compliance through a simplified management plane.</p></div><h5 id=how-do-i-get-started class=question>How do I get started using Istio?</h5><div class=answer><p>We recommend starting with the <a href=/v1.0/docs/examples/>Guides</a>, which walks
through different core Istio concepts in a tutorial style. The guides show
case intelligent routing, policy enforcement, security, telemetry, etc.</p><p>To start using Istio on your existing Kubernetes or Consul deployment, please refer to our <a href=/v1.0/docs/setup/>Installation</a> task guide.</p></div><h5 id=what-is-the-license class=question>What is the license?</h5><div class=answer><p>Istio uses the <a href=https://www.apache.org/licenses/LICENSE-2.0.html>Apache License 2.0</a>.</p></div><h5 id=how-was-istio-started class=question>How was Istio started?</h5><div class=answer><p>The Istio project was started by teams from Google and IBM in partnership with the Envoy team from Lyft. It's been
developed fully in the open on GitHub.</p></div><h5 id=what-deployment-environment class=question>What deployment environments are supported?</h5><div class=answer><p>Istio is designed and built to be platform-independent. For our
1.0 release, Istio supports environments running
container orchestration platforms such as Kubernetes (v1.9 or greater)
and Nomad (with Consul).</p></div><h5 id=how-do-i-contribute class=question>How can I contribute?</h5><div class=answer><p>Contributions are highly welcome. We look forward to community feedback, additions, and bug reports.</p><p>The code repositories are hosted on <a href=https://github.com/istio>GitHub</a>. Please see our <a href=https://github.com/istio/community/blob/master/CONTRIBUTING.md>Contribution Guidelines</a> to learn how to contribute.</p><p>In addition to the code, there are other ways to contribute to the Istio <a href=/v1.0/about/community/>community</a>, including on
<a href=https://stackoverflow.com/questions/tagged/istio>Stack Overflow</a>, and the <a href=https://groups.google.com/forum/#!forum/istio-users>mailing list</a>.</p></div><h5 id=istio-partners-and-vendors class=question>How can I discover more about Partner and Vendor opportunities?</h5><div class=answer><p>If you'd like to speak to the Istio team about a potential integration
and/or a partnership opportunity, please complete this <a href=https://goo.gl/forms/ax2SdpC6FpVh9Th02>form</a>.</p></div><h5 id=where-is-the-documentation class=question>Where is the documentation?</h5><div class=answer><p>Check out the <a href=/v1.0/docs/>documentation</a> right here on istio.io. The docs include
<a href=/v1.0/docs/concepts/>concept overviews</a>,
<a href=/v1.0/docs/tasks/>task guides</a>,
<a href=/v1.0/docs/examples/>guides</a>,
and the <a href=/v1.0/docs/reference/>complete reference documentation</a>.</p><p>Detailed developer-level documentation is maintained on our <a href=https://github.com/istio/istio/wiki>Wiki</a></p></div><h5 id=istio-doesnt-work class=question>Istio doesn't work - what do I do?</h5><div class=answer><p>Check out the <a href=/v1.0/help/ops/>operations guide</a> for finding solutions and our
<a href=/v1.0/about/bugs/>bug reporting</a> page for filing bugs.</p></div><h5 id=roadmap class=question>What is Istio's roadmap?</h5><div class=answer><p>See our <a href=/v1.0/about/feature-stages/>feature stages page</a>
and <a href=/v1.0/about/notes>release notes</a> for more details.</p></div><h5 id=what-does-istio-mean class=question>What does the word 'Istio' mean?</h5><div class=answer><p>It's the Greek word for &lsquo;sail&rsquo;.</p></div></div></main><div class="container-fluid d-print-none"><br><div class=row><div class="col-6 pagenav"></div><div class="col-6 pagenav" style=text-align:right><p><a title="Setup Q & A." href=/v1.0/help/faq/setup/>Setup
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<a title="GitHub is where development takes place on Istio code" href=https://github.com/istio/community aria-label=GitHub><svg viewBox="0 0 478.165 478.165"><path d="M349.22 55.768c6.136 14.046 10.241 37.556 4.224 54.69 24.426 20.999 33.073 71.904 21.079 113.704 35.006 2.73 76.666-1.235 103.642 9.484-25.183-3.248-59.651-9.563-91.987-7.431-6.136.458-15.361-.239-14.903 8.408 37.735 3.008 75.092 6.117 105.894 15.779-30.702-4.981-67.74-12.552-105.894-13.668-15.54 30.921-47.239 46.262-90.991 49.49 4.682 10.261 13.847 14.066 15.879 30.702 3.267 24.406-4.881 60.328 3.208 76.686 4.064 7.89 10.579 8.009 14.863 14.604-10.699 12.871-37.257-1.395-40.186-14.604-5.14-22.852 7.89-58.256-6.415-73.737.996 24.865-5.718 59.85.996 82.145 2.789 8.806 10.659 12.113 8.647 20.063-49.809 5.08-28.989-64.373-37.177-105.356-7.471.697-4.204 11.197-4.224 15.76-.199 40.106 8.189 94.836-34.846 89.556-1.315-8.348 5.838-11.217 8.467-19.007 7.91-22.434-1.454-56.045 2.112-83.161-16.417 12.512 1.793 55.666-8.428 77.961-5.838 12.671-24.785 18.27-39.19 12.651 1.873-9.464 11.695-7.989 15.879-16.875 5.818-12.452.02-30.244 2.092-48.494-30.423 6.097-53.993-.877-65.608-20.023-5.12-8.507-6.356-18.708-12.632-26.219-6.117-7.551-16.098-8.507-19.087-18.808 37.755-9.185 39.17 38.771 73.06 39.807 10.44.418 15.799-2.909 25.402-5.16 2.749-12.113 8.428-21.039 16.875-27.494-42.078-5.658-76.865-18.788-93.023-50.466-38.293 1.893-73.339 7.013-105.894 14.843 29.547-10.679 65.807-14.604 104.778-15.819-2.351-13.807-22.434-10.022-34.866-9.543C47.677 227.17 18.449 230.138.0 233.645c26.817-9.543 64.233-8.348 100.454-8.428-11.038-34.767-7.232-90.014 17.015-110.615-6.854-17.254-4.722-45.346 4.184-58.834 27.036 1.175 43.374 12.891 60.388 24.247 21.019-6.017 43.035-9.045 71.904-7.451 12.133.677 24.705 6.097 33.731 5.32 8.906-.877 18.728-10.898 27.534-14.843C326.507 58.099 336.17 56.206 349.22 55.768z"/></svg></a></div><div class=icon><span>drive</span>
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