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to inject delays and test the resiliency of your application."}); docs.push({path: [ "index.md", ], url: "/docs/tasks/index.html", title: "Tasks", order: 20, overview: "Tasks show you how to do a single specific targeted activity with the Istio system."}); docs.push({path: [ "ingress.md", ], url: "/docs/tasks/ingress.html", title: "Enabling Ingress Traffic", order: 30, overview: "Describes how to configure Istio to expose a service outside of the service mesh."}); docs.push({path: [ "installing-istio.md", ], url: "/docs/tasks/installing-istio.html", title: "Installing Istio", order: 10, overview: "This task shows you how to setup the Istio service mesh."}); docs.push({path: [ "integrating-services-into-istio.md", ], url: "/docs/tasks/integrating-services-into-istio.html", title: "Integrating Services into the Mesh", order: 20, overview: "This task shows you how to integrate your applications with the Istio service mesh."}); docs.push({path: [ "istio-auth.md", ], url: "/docs/tasks/istio-auth.html", title: "Testing Istio Auth", order: 100, overview: "This task shows you how to verify and test Istio-Auth."}); docs.push({path: [ "metrics-logs.md", ], url: "/docs/tasks/metrics-logs.html", title: "Collecting Metrics and Logs", order: 110, overview: "This task shows you how to configure Mixer to collect metrics and logs from Envoy instances."}); docs.push({path: [ "rate-limiting.md", ], url: "/docs/tasks/rate-limiting.html", title: "Enabling Rate Limits", order: 80, overview: "This task shows you how to use Istio to dynamically limit the traffic to a service."}); docs.push({path: [ "request-routing.md", ], url: "/docs/tasks/request-routing.html", title: "Configuring Request Routing", order: 50, overview: "This task shows you how to configure dynamic request routing based on weights and HTTP headers."}); docs.push({path: [ "request-timeouts.md", ], url: "/docs/tasks/request-timeouts.html", title: "Setting Request Timeouts", order: 70, overview: "This task shows you how to setup request timeouts in Envoy using Istio."}); docs.push({path: [ "zipkin-tracing.md", ], url: "/docs/tasks/zipkin-tracing.html", title: "Distributed Request Tracing", order: 120, overview: "How to configure the proxies to send tracing requests to Zipkin"}); 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>Enabling Simple Access Control</h1><p>This task shows how to use Istio to control access to a service.</p><h2 id="before-you-begin">Before you begin</h2><ul><li><p>Setup Istio by following the instructions in the <a href="./installing-istio.html">Installation guide</a>.</p></li><li><p>Deploy the <a href="/v0.1/docs/samples/bookinfo.html">BookInfo</a> sample application.</p></li><li><p>Initialize the application version routing to direct <code>reviews</code> service requests from test user “jason” to version v2 and requests from any other user to v3.</p><pre><code class="language-bash">istioctl create -f samples/apps/bookinfo/route-rule-reviews-test-v2.yaml
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istioctl create -f samples/apps/bookinfo/route-rule-reviews-v3.yaml
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</code></pre><blockquote><p>Note: if you have conflicting rule that you set in previous tasks, use <code>istioctl replace</code> instead of <code>istioctl create</code>.</p></blockquote></li></ul><h2 id="access-control-using-denials">Access control using <em>denials</em></h2><p>Using Istio you can control access to a service based on any attributes that are available within Mixer. This simple form of access control is based on conditionally denying requests using Mixer selectors.</p><p>Consider the <a href="/v0.1/docs/samples/bookinfo.html">BookInfo</a> sample application where the <code>ratings</code> service is accessed by multiple versions of the <code>reviews</code> service. We would like to cut off access to version <code>v3</code> of the <code>reviews</code> service.</p><ol><li><p>Point your browser at the BookInfo <code>productpage</code> (http://$GATEWAY_URL/productpage).</p><p>If you log in as user “jason”, you should see black ratings stars with each review, indicating that the <code>ratings</code> service is being called by the “v2” version of the <code>reviews</code> service.</p><p>If you log in as any other user (or logout) you should see red ratings stars with each review, indicating that the <code>ratings</code> service is being called by the “v3” version of the <code>reviews</code> service.</p></li><li><p>Explicitly deny access to version <code>v3</code> of the <code>reviews</code> service.</p><pre><code class="language-bash">istioctl mixer rule create global ratings.default.svc.cluster.local -f samples/apps/bookinfo/mixer-rule-ratings-denial.yaml
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</code></pre><p>This command sets configuration for <code>subject=ratings.default.svc.cluster.local</code>. You can display the current configuration with the following command:</p><pre><code>istioctl mixer rule get global ratings.default.svc.cluster.local
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</code></pre><p>which should produce:</p><pre><code class="language-yaml">rules:
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- aspects:
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- kind: denials
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selector: source.labels["app"]=="reviews" && source.labels["version"] == "v3"
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</code></pre><p>This rule uses the <code>denials</code> aspect to deny requests coming from version <code>v3</code> of the reviews service. The <code>denials</code> aspect always denies requests with a pre-configured status code and message. The status code and the message is specified in the <a href="/v0.1/docs/reference/config/mixer/adapters/denyChecker.html">DenyChecker</a> adapter configuration.</p></li><li><p>Refresh the <code>productpage</code> in your browser.</p><p>If you are logged out or logged in as any user other than “jason” you will no longer see red ratings stars because the <code>reviews:v3</code> service has been denied access to the <code>ratings</code> service. Notice, however, that if you log in as user “jason” (the <code>reviews:v2</code> user) you continue to see the black ratings stars.</p></li></ol><h2 id="access-control-using-whitelists">Access control using <em>whitelists</em></h2><p>Istio also supports attribute-based white and blacklists. Using a whitelist is a two step process.</p><ol><li><p>Add an adapter definition for the <a href="/v0.1/docs/reference/config/mixer/adapters/genericListChecker.html"><code>genericListChecker</code></a> adapter that lists versions <code>v1, v2</code>:</p><pre><code class="language-yaml">- name: versionList
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impl: genericListChecker
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params:
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listEntries: ["v1", "v2"]
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</code></pre></li><li><p>Enable <code>whitelist</code> checking by using the <a href="/v0.1/docs/reference/config/mixer/aspects/lists.html"><code>lists</code></a> aspect:</p><pre><code class="language-yaml">rules:
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aspects:
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- kind: lists
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adapter: versionList
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params:
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blacklist: false
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checkExpression: source.labels["version"]
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</code></pre><p><code>checkExpression</code> is evaluated and checked against the list <code>[v1, v2]</code>. The check behavior can be changed to a blacklist by specifying <code>blacklist: true</code>. The expression evaluator returns the value of the <code>version</code> label as specified by the <code>checkExpression</code> key.</p></li></ol><p>The current version of <code>istioctl</code> does not yet support pushing adapter configurations like the one in step 1. There is, however, a <a href="/v0.1/docs/concepts/policy-and-control/mixer-aspect-config.html#pushing-configuration">workaround</a> that you can use if you want to try it out anyway.</p><h2 id="cleanup">Cleanup</h2><ul><li><p>Remove the mixer configuration rule:</p><pre><code class="language-bash">istioctl mixer rule delete global ratings.default.svc.cluster.local
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</code></pre></li><li><p>Remove the application routing rules:</p><pre><code>istioctl delete -f samples/apps/bookinfo/route-rule-reviews-test-v2.yaml
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istioctl delete -f samples/apps/bookinfo/route-rule-reviews-v3.yaml
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</code></pre></li></ul><h2 id="whats-next">What’s next</h2><ul><li><p>Learn more about <a href="/v0.1/docs/concepts/policy-and-control/mixer.html">Mixer</a> and <a href="/v0.1/docs/concepts/policy-and-control/mixer-config.html">Mixer Config</a>.</p></li><li><p>Discover the full <a href="/v0.1/docs/reference/config/mixer/attribute-vocabulary.html">Attribute Vocabulary</a>.</p></li><li><p>Read the reference guide to <a href="/v0.1/docs/reference/writing-config.html">Writing Config</a>.</p></li></ul></div></div></div></div></div></div><script src="/v0.1/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="/v0.1/docs/">Welcome</a></li><li><a href="/v0.1/docs/concepts">Concepts</a></li><li><a href="/v0.1/docs/tasks">Tasks</a></li><li><a href="/v0.1/docs/samples">Samples</a></li><li><a href="/v0.1/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="/v0.1/faq">Frequently Asked Questions</a></li><li><a href="/v0.1/troubleshooting">Troubleshooting Guide</a></li><li><a href="/v0.1/bugs">Report a Bug</a></li><li><a href="https://github.com/istio/istio.github.io/issues/new?title=Issue with _docs/tasks/basic-access-control.md">Report a Doc Issue</a></li><li><a href="https://github.com/istio/istio.github.io/edit/master/_docs/tasks/basic-access-control.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 Mailing 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"> Copyright © 2017 Istio Authors<br> Istio 0.1<br> Archived on 20-Jul-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="/v0.1/js/jquery.form.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script> <script src="/v0.1/js/slick.min.js"></script> <script src="/v0.1/js/jquery.visible.min.js"></script> <script src="/v0.1/js/common.js" type="text/javascript" charset="utf-8"></script> <script src="/v0.1/js/buttons.js"></script> <script src="/v0.1/js/search.js"></script> <script src="/v0.1/js/prism.js"></script></body></html>
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