<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Authentication using Athenz · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="[Athenz](https://github.com/AthenZ/athenz) is a role-based authentication/authorization system. In Pulsar, you can use Athenz role tokens (also known as *z-tokens*) to establish the identify of the client."/><meta name="docsearch:version" content="2.4.2"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Authentication using Athenz · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="[Athenz](https://github.com/AthenZ/athenz) is a role-based authentication/authorization system. In Pulsar, you can use Athenz role tokens (also known as *z-tokens*) to establish the identify of the client."/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://pulsar.apache.org/img/pulsar.svg"/><link rel="shortcut icon" href="/img/pulsar.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/atom-one-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://pulsar.apache.org/blog/atom.xml" title="Apache Pulsar Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://pulsar.apache.org/blog/feed.xml" title="Apache Pulsar Blog RSS Feed"/><link rel="stylesheet" href="/css/code-blocks-buttons.css"/><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script><script type="text/javascript" src="/js/custom.js"></script><script src="/js/scrollSpy.js"></script><link rel="stylesheet" href="/css/main.css"/><script src="/js/codetabs.js"></script></head><body class="sideNavVisible separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/en"><img class="logo" src="/img/pulsar.svg" alt="Apache Pulsar"/></a><a href="/en/versions"><h3>2.4.2</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.4.2/getting-started-standalone" target="_self">Docs</a></li><li class=""><a href="/en/download" target="_self">Download</a></li><li class="siteNavGroupActive"><a href="/docs/en/2.4.2/client-libraries" target="_self">Clients</a></li><li class=""><a href="#restapis" target="_self">REST APIs</a></li><li class=""><a href="#cli" target="_self">Cli</a></li><li class=""><a href="/blog/" target="_self">Blog</a></li><li class=""><a href="#community" target="_self">Community</a></li><li class=""><a href="#apache" target="_self">Apache</a></li><li class=""><a href="https://pulsar-next.staged.apache.org/" target="_self">New Website (Beta)</a></li><span><li><a id="languages-menu" href="#"><img class="languages-icon" src="/img/language.svg" alt="Languages icon"/>English</a><div id="languages-dropdown" class="hide"><ul id="languages-dropdown-items"><li><a href="/docs/ja/2.4.2/security-athenz">日本語</a></li><li><a href="/docs/fr/2.4.2/security-athenz">Français</a></li><li><a href="/docs/ko/2.4.2/security-athenz">한국어</a></li><li><a href="/docs/zh-CN/2.4.2/security-athenz">中文</a></li><li><a href="/docs/zh-TW/2.4.2/security-athenz">繁體中文</a></li><li><a href="https://crowdin.com/project/apache-pulsar" target="_blank" rel="noreferrer noopener">Help Translate</a></li></ul></div></li><script>
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<h2><a class="anchor" aria-hidden="true" id="athenz-authentication-settings"></a><a href="#athenz-authentication-settings" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Athenz authentication settings</h2>
<p>A <a href="https://github.com/AthenZ/athenz/blob/master/docs/decent_authz_flow.md">decentralized Athenz system</a> contains an <a href="https://github.com/AthenZ/athenz/blob/master/docs/setup_zms.md">authori<strong>Z</strong>ation <strong>M</strong>anagement <strong>S</strong>ystem</a> (ZMS) server and an <a href="https://github.com/AthenZ/athenz/blob/master/docs/setup_zts.md">authori<strong>Z</strong>ation <strong>T</strong>oken <strong>S</strong>ystem</a> (ZTS) server.</p>
<p>To begin, you need to set up Athenz service access control. You need to create domains for the <em>provider</em> (which provides some resources to other services with some authentication/authorization policies) and the <em>tenant</em> (which is provisioned to access some resources in a provider). In this case, the provider corresponds to the Pulsar service itself and the tenant corresponds to each application using Pulsar (typically, a <a href="/docs/en/2.4.2/reference-terminology#tenant">tenant</a> in Pulsar).</p>
<h3><a class="anchor" aria-hidden="true" id="create-the-tenant-domain-and-service"></a><a href="#create-the-tenant-domain-and-service" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Create the tenant domain and service</h3>
<p>On the <a href="/docs/en/2.4.2/reference-terminology#tenant">tenant</a> side, you need to do the following things:</p>
<ol>
<li>Create a domain, such as <code>shopping</code></li>
<li>Generate a private/public key pair</li>
<li>Create a service, such as <code>some_app</code>, on the domain with the public key</li>
</ol>
<p>Note that you need to specify the private key generated in step 2 when the Pulsar client connects to the <a href="/docs/en/2.4.2/reference-terminology#broker">broker</a> (see client configuration examples for <a href="/docs/en/2.4.2/client-libraries-java#tls-authentication">Java</a> and <a href="/docs/en/2.4.2/client-libraries-cpp#tls-authentication">C++</a>).</p>
<p>For more specific steps involving the Athenz UI, refer to <a href="https://github.com/AthenZ/athenz/blob/master/docs/example_service_athenz_setup.md#client-tenant-domain">Example Service Access Control Setup</a>.</p>
<h3><a class="anchor" aria-hidden="true" id="create-the-provider-domain-and-add-the-tenant-service-to-some-role-members"></a><a href="#create-the-provider-domain-and-add-the-tenant-service-to-some-role-members" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Create the provider domain and add the tenant service to some role members</h3>
<p>On the provider side, you need to do the following things:</p>
<ol>
<li>Create a domain, such as <code>pulsar</code></li>
<li>Create a role</li>
<li>Add the tenant service to members of the role</li>
</ol>
<p>Note that you can specify any action and resource in step 2 since they are not used on Pulsar. In other words, Pulsar uses the Athenz role token only for authentication, <em>not</em> for authorization.</p>
<p>For more specific steps involving UI, refer to <a href="https://github.com/AthenZ/athenz/blob/master/docs/example_service_athenz_setup.md#server-provider-domain">Example Service Access Control Setup</a>.</p>
<h2><a class="anchor" aria-hidden="true" id="configure-the-broker-for-athenz"></a><a href="#configure-the-broker-for-athenz" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Configure the broker for Athenz</h2>
<blockquote>
<h3><a class="anchor" aria-hidden="true" id="tls-encryption"></a><a href="#tls-encryption" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>TLS encryption</h3>
<p>Note that when you are using Athenz as an authentication provider, you had better use TLS encryption
as it can protect role tokens from being intercepted and reused. (for more details involving TLS encryption see <a href="https://github.com/AthenZ/athenz/blob/master/docs/data_model.md">Architecture - Data Model</a>).</p>
</blockquote>
<p>In the <code>conf/broker.conf</code> configuration file in your Pulsar installation, you need to provide the class name of the Athenz authentication provider as well as a comma-separated list of provider domain names.</p>
<pre><code class="hljs css language-properties"><span class="hljs-comment"># Add the Athenz auth provider</span>
<span class="hljs-attr">authenticationEnabled</span>=<span class="hljs-string">true</span>
<span class="hljs-attr">authorizationEnabled</span>=<span class="hljs-string">true</span>
<span class="hljs-attr">authenticationProviders</span>=<span class="hljs-string">org.apache.pulsar.broker.authentication.AuthenticationProviderAthenz</span>
<span class="hljs-attr">athenzDomainNames</span>=<span class="hljs-string">pulsar</span>
<span class="hljs-comment">
# Enable TLS</span>
<span class="hljs-attr">tlsEnabled</span>=<span class="hljs-string">true</span>
<span class="hljs-attr">tlsCertificateFilePath</span>=<span class="hljs-string">/path/to/broker-cert.pem</span>
<span class="hljs-attr">tlsKeyFilePath</span>=<span class="hljs-string">/path/to/broker-key.pem</span>
<span class="hljs-comment">
# Authentication settings of the broker itself. Used when the broker connects to other brokers, either in same or other clusters</span>
<span class="hljs-attr">brokerClientAuthenticationPlugin</span>=<span class="hljs-string">org.apache.pulsar.client.impl.auth.AuthenticationAthenz</span>
<span class="hljs-attr">brokerClientAuthenticationParameters</span>=<span class="hljs-string">{"tenantDomain":"shopping","tenantService":"some_app","providerDomain":"pulsar","privateKey":"file:///path/to/private.pem","keyId":"v1"}</span>
</code></pre>
<blockquote>
<p>A full listing of parameters is available in the <code>conf/broker.conf</code> file, you can also find the default
values for those parameters in <a href="/docs/en/2.4.2/reference-configuration#broker">Broker Configuration</a>.</p>
</blockquote>
<h2><a class="anchor" aria-hidden="true" id="configure-clients-for-athenz"></a><a href="#configure-clients-for-athenz" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Configure clients for Athenz</h2>
<p>For more information on Pulsar client authentication using Athenz, see the following language-specific docs:</p>
<ul>
<li><a href="/docs/en/2.4.2/client-libraries-java#athenz">Java client</a></li>
</ul>
<h2><a class="anchor" aria-hidden="true" id="configure-cli-tools-for-athenz"></a><a href="#configure-cli-tools-for-athenz" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Configure CLI tools for Athenz</h2>
<p><a href="/docs/en/2.4.2/reference-cli-tools">Command-line tools</a> like <a href="/docs/en/2.4.2/reference-pulsar-admin"><code>pulsar-admin</code></a>, <a href="/docs/en/2.4.2/reference-cli-tools#pulsar-perf"><code>pulsar-perf</code></a>, and <a href="/docs/en/2.4.2/reference-cli-tools#pulsar-client"><code>pulsar-client</code></a> use the <code>conf/client.conf</code> config file in a Pulsar installation.</p>
<p>You need to add the following authentication parameters to the <code>conf/client.conf</code> config file to use Athenz with CLI tools of Pulsar:</p>
<pre><code class="hljs css language-properties"><span class="hljs-comment"># URL for the broker</span>
<span class="hljs-attr">serviceUrl</span>=<span class="hljs-string">https://broker.example.com:8443/</span>
<span class="hljs-comment">
# Set Athenz auth plugin and its parameters</span>
<span class="hljs-attr">authPlugin</span>=<span class="hljs-string">org.apache.pulsar.client.impl.auth.AuthenticationAthenz</span>
<span class="hljs-attr">authParams</span>=<span class="hljs-string">{"tenantDomain":"shopping","tenantService":"some_app","providerDomain":"pulsar","privateKey":"file:///path/to/private.pem","keyId":"v1"}</span>
<span class="hljs-comment">
# Enable TLS</span>
<span class="hljs-attr">useTls</span>=<span class="hljs-string">true</span>
<span class="hljs-attr">tlsAllowInsecureConnection</span>=<span class="hljs-string">false</span>
<span class="hljs-attr">tlsTrustCertsFilePath</span>=<span class="hljs-string">/path/to/cacert.pem</span>
</code></pre>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/2.4.2/security-token-admin"><span class="arrow-prev">← </span><span>Token authentication admin</span></a><a class="docs-next button" href="/docs/en/2.4.2/security-kerberos"><span>Authentication using Kerberos</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#athenz-authentication-settings">Athenz authentication settings</a><ul class="toc-headings"><li><a href="#create-the-tenant-domain-and-service">Create the tenant domain and service</a></li><li><a href="#create-the-provider-domain-and-add-the-tenant-service-to-some-role-members">Create the provider domain and add the tenant service to some role members</a></li></ul></li><li><a href="#configure-the-broker-for-athenz">Configure the broker for Athenz</a><ul class="toc-headings"><li><a href="#tls-encryption">TLS encryption</a></li></ul></li><li><a href="#configure-clients-for-athenz">Configure clients for Athenz</a></li><li><a href="#configure-cli-tools-for-athenz">Configure CLI tools for Athenz</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">Copyright © 2022 The Apache Software Foundation. All Rights Reserved. Apache, Apache Pulsar and the Apache feather logo are trademarks of The Apache Software Foundation.</section><span><script>
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