<!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, Athenz role tokens (aka *z-tokens*) can be used to establish the identify of the client."/><meta name="docsearch:version" content="2.2.0"/><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, Athenz role tokens (aka *z-tokens*) can be used 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>2.2.0</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.2.0/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/2.2.0/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/2.2.0/security-athenz">日本語</a></li><li><a href="/docs/fr/2.2.0/security-athenz">Français</a></li><li><a href="/docs/ko/2.2.0/security-athenz">한국어</a></li><li><a href="/docs/zh-CN/2.2.0/security-athenz">中文</a></li><li><a href="/docs/zh-TW/2.2.0/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>In a <a href="https://github.com/AthenZ/athenz/blob/master/docs/decent_authz_flow.md">decentralized Athenz system</a> there is both 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 should 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/2.2.0/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/2.2.0/reference-terminology#tenant">tenant</a> side, you need to:</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 the private key generated in step 2 needs to be specified when the Pulsar client connects to the <a href="/docs/en/2.2.0/reference-terminology#broker">broker</a> (see client configuration examples for <a href="/docs/en/2.2.0/client-libraries-java#tls-authentication">Java</a> and <a href="/docs/en/2.2.0/client-libraries-cpp#tls-authentication">C++</a>).</p>
<p>For more specific steps involving the Athenz UI, please refer to <a href="https://github.com/AthenZ/athenz/blob/master/docs/example_service_athenz_setup.md#client-tenant-domain">this doc</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:</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 in step 2 any action and resource can be specified 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, please refer to <a href="https://github.com/AthenZ/athenz/blob/master/docs/example_service_athenz_setup.md#server-provider-domain">this doc</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-strongly-recommended"></a><a href="#tls-encryption-strongly-recommended" 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 strongly recommended</h3>
<p>Please note that using TLS encryption is strongly recommended when using Athenz as an authentication provider,
as it can protect role tokens from being intercepted and reused (see also <a href="https://github.com/AthenZ/athenz/blob/master/docs/data_model.md">this doc</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 available in the <code>conf/broker.conf</code> file, as well as the default
values for those parameters, can be found in <a href="/docs/en/2.2.0/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/2.2.0/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/2.2.0/reference-cli-tools">Command-line tools</a> like <a href="/docs/en/2.2.0/reference-pulsar-admin"><code>pulsar-admin</code></a>, <a href="/docs/en/2.2.0/reference-cli-tools#pulsar-perf"><code>pulsar-perf</code></a>, and <a href="/docs/en/2.2.0/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’ll need to add the following authentication parameters to that file to use Athenz with Pulsar’s CLI tools:</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/2.2.0/security-tls-authentication"><span class="arrow-prev">← </span><span>Authentication using TLS</span></a><a class="docs-next button" href="/docs/en/2.2.0/security-authorization"><span>Authorization and ACLs</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-strongly-recommended">TLS encryption strongly recommended</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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