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<title data-rh="true">Plugins Guide | DataHub</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" name="twitter:card" content="summary_large_image"><meta data-rh="true" property="og:url" content="https://docs.datahub.com/docs/plugins"><meta data-rh="true" name="docusaurus_locale" content="en"><meta data-rh="true" name="docsearch:language" content="en"><meta data-rh="true" name="docusaurus_version" content="current"><meta data-rh="true" name="docusaurus_tag" content="docs-default-current"><meta data-rh="true" name="docsearch:version" content="current"><meta data-rh="true" name="docsearch:docusaurus_tag" content="docs-default-current"><meta data-rh="true" property="og:title" content="Plugins Guide | DataHub"><meta data-rh="true" name="description" content="Plugins are way to enhance the basic DataHub functionality in a custom manner."><meta data-rh="true" property="og:description" content="Plugins are way to enhance the basic DataHub functionality in a custom manner."><link data-rh="true" rel="icon" href="/img/favicon.ico"><link data-rh="true" rel="canonical" href="https://docs.datahub.com/docs/plugins"><link data-rh="true" rel="alternate" href="https://docs.datahub.com/docs/plugins" hreflang="en"><link data-rh="true" rel="alternate" href="https://docs.datahub.com/docs/plugins" hreflang="x-default"><link data-rh="true" rel="preconnect" href="https://RK0UG797F3-dsn.algolia.net" crossorigin="anonymous"><link rel="alternate" type="application/rss+xml" href="/learn/rss.xml" title="DataHub RSS Feed">
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<script id="runllm-widget-script" type="module" src="https://widget.runllm.com" crossorigin="true" runllm-name="DataHub" runllm-assistant-id="81" runllm-position="BOTTOM_RIGHT" runllm-keyboard-shortcut="Mod+j" runllm-preset="docusaurus" runllm-theme-color="#1890FF" runllm-brand-logo="https://docs.datahub.com/img/datahub-logo-color-mark.svg" runllm-community-url="https://datahub.com/slack" runllm-community-type="slack" runllm-disable-ask-a-person="true" async></script><link rel="stylesheet" href="/assets/css/styles.d8fe2eb8.css">
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<div role="region" aria-label="Skip to main content"><a class="skipToContent_fXgn" href="#__docusaurus_skipToContent_fallback">Skip to main content</a></div><div class="announcementBar_mb4j" style="background-color:transparent;color:#ffffff" role="banner"><div class="content_knG7 announcementBarContent_xLdY"><div class="shimmer-banner"><p>DataHub Secures $35 Million Series B</p><a href="https://datahub.com/news/series-b-announcement/" target="_blank" class="button"><div>Read the announcement<span> →</span></div></a></div></div></div><nav aria-label="Main" class="navbar navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><button aria-label="Toggle navigation bar" aria-expanded="false" class="navbar__toggle clean-btn" type="button"><svg width="30" height="30" viewBox="0 0 30 30" aria-hidden="true"><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><a href="https://datahub.com" target="_blank" rel="noopener noreferrer" class="navbar__brand"><div class="navbar__logo"><img src="/img/datahub-logo-color-light-horizontal.svg" alt="DataHub Logo" class="themedImage_ToTc themedImage--light_HNdA"><img src="/img/datahub-logo-color-dark-horizontal.svg" alt="DataHub Logo" class="themedImage_ToTc themedImage--dark_i4oU"></div></a><div class="navbar__item dropdown dropdown--hoverable"><a href="#" aria-haspopup="true" aria-expanded="false" role="button" class="navbar__link versionNavItem_cbn8">Next</a><ul class="dropdown__menu"><li><a aria-current="page" class="dropdown__link dropdown__link--active" href="/docs/plugins">Next</a></li><li><a class="dropdown__link" href="/docs/1.1.0/plugins">1.1.0</a></li><li><hr class="dropdown-separator" style="margin: 0.4rem;"></li><li><div class="dropdown__link"><b>Archived versions</b></div></li><li>
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<a class="dropdown__link" href="https://docs-website-t9sv4w3gr-acryldata.vercel.app/docs/0.15.0/features">0.15.0
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<a class="dropdown__link" href="https://docs-website-8jkm4uler-acryldata.vercel.app/docs/0.14.1/features">0.14.1
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<a class="dropdown__link" href="https://docs-website-eue2qafvn-acryldata.vercel.app/docs/features">0.14.0
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<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg>
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</a>
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<a class="dropdown__link" href="https://docs-website-psat3nzgi-acryldata.vercel.app/docs/features">0.13.1
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<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg>
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<a class="dropdown__link" href="https://docs-website-lzxh86531-acryldata.vercel.app/docs/features">0.13.0
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</a>
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<a class="dropdown__link" href="https://docs-website-2uuxmgza2-acryldata.vercel.app/docs/features">0.12.1
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<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg>
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</a>
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<a class="dropdown__link" href="https://docs-website-irpoe2osc-acryldata.vercel.app/docs/features">0.11.0
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<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg>
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</a>
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</li><li>
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<a class="dropdown__link" href="https://docs-website-1gv2yzn9d-acryldata.vercel.app/docs/features">0.10.5
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<svg width="12" height="12" aria-hidden="true" viewBox="0 0 24 24"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg>
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</li></ul></div></div><div class="navbar__items navbar__items--right"><a aria-current="page" class="navbar__item navbar__link navbar__link--active" href="/docs">Docs</a><a class="navbar__item navbar__link" href="/integrations">Integrations</a><div class="navbar__item dropdown dropdown--hoverable"><a href="#" aria-haspopup="true" aria-expanded="false" role="button" class="navbar__link">Learn</a><ul class="dropdown__menu dropdown__menu_Z8FC"><div class="wrapper_kp81"><div><a href="https://datahub.com/weekly-demo" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-join-slack.png" alt="Weekly Demo"></div><div class="title_c7DP">Weekly Demo</div></a></div><div><a href="https://datahub.com/use-cases" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-forum.png" alt="Use Cases"></div><div class="title_c7DP">Use Cases</div></a></div><div><a href="httpps://datahub.com/adoption-stories" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-events.png" alt="Adoption Stories"></div><div class="title_c7DP">Adoption Stories</div></a></div><div><a href="https://medium.com/datahub-project" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-champions.png" alt="Blog"></div><div class="title_c7DP">Blog</div></a></div><div><a href="https://www.youtube.com/channel/UC3qFQC5IiwR5fvWEqi_tJ5w" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-share-your-journey.png" alt="Youtube"></div><div class="title_c7DP">Youtube</div></a></div></div></ul></div><div class="navbar__item dropdown dropdown--hoverable"><a href="#" aria-haspopup="true" aria-expanded="false" role="button" class="navbar__link">Community</a><ul class="dropdown__menu dropdown__menu_Z8FC"><div class="wrapper_kp81"><div><a href="https://datahub.com/slack/" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-join-slack.png" alt="Join Slack"></div><div class="title_c7DP">Join Slack</div></a></div><div><a href="https://datahub.com/events" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-events.png" alt="Events"></div><div class="title_c7DP">Events</div></a></div><div><a href="https://datahub.com/champions/" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-champions.png" alt="Champions"></div><div class="title_c7DP">Champions</div></a></div><div><a href="https://datahub.com/share-your-journey/" target="_blank" rel="noopener noreferrer" class="card_BUD7"><div class="icon_BgHd"><img src="/img/icon-share-your-journey.png" alt="Share Your Journey"></div><div class="title_c7DP">Share Your Journey</div></a></div></div></ul></div><a href="https://datahub.com/products/why-datahub-cloud/" target="_blank" rel="noopener noreferrer" class="navbar__item navbar__link">
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<style>
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.cloud-cta {
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color: var(--ifm-menu-color-active);
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font-weight: 600;
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background: linear-gradient(40deg, var(--ifm-menu-color-active), var(--ifm-menu-color-active));
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background-size: 200% 100%;
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-webkit-background-clip: text;
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background-clip: text;
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transition: background-image 0.3s ease;
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}
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.cloud-cta:hover {
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color: transparent;
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background: linear-gradient(40deg, var(--ifm-menu-color-active), #ff1493);
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background-size: 200% 100%;
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-webkit-background-clip: text;
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background-clip: text;
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animation: gradientShift 3s ease infinite;
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}
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@keyframes gradientShift {
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0%, 100% { background-position: 0% 50%; }
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50% { background-position: 100% 50%; }
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}
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</style>
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<div class="cloud-cta">Get Cloud</div>
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</a><a href="https://datahub.com/slack?utm_source=docs&utm_medium=header&utm_campaign=docs_header" target="_blank" rel="noopener noreferrer" class="navbar__item navbar__link">
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<style>
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.slack-logo:hover {
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opacity: 0.8;
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}
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</style>
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<img class="slack-logo" src="https://upload.wikimedia.org/wikipedia/commons/d/d5/Slack_icon_2019.svg" , alt="slack" , height="20px" style="margin: 10px 0 0 0;">
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</a><div class="searchBox_ZlJk"><button type="button" class="DocSearch DocSearch-Button" aria-label="Search"><span class="DocSearch-Button-Container"><svg width="20" height="20" class="DocSearch-Search-Icon" viewBox="0 0 20 20" aria-hidden="true"><path d="M14.386 14.386l4.0877 4.0877-4.0877-4.0877c-2.9418 2.9419-7.7115 2.9419-10.6533 0-2.9419-2.9418-2.9419-7.7115 0-10.6533 2.9418-2.9419 7.7115-2.9419 10.6533 0 2.9419 2.9418 2.9419 7.7115 0 10.6533z" stroke="currentColor" fill="none" fill-rule="evenodd" stroke-linecap="round" stroke-linejoin="round"></path></svg><span class="DocSearch-Button-Placeholder">Search</span></span><span class="DocSearch-Button-Keys"></span></button></div></div></div><div role="presentation" class="navbar-sidebar__backdrop"></div></nav><div id="__docusaurus_skipToContent_fallback" class="main-wrapper mainWrapper_z2l0 docsWrapper_BCFX"><button aria-label="Scroll back to top" class="clean-btn theme-back-to-top-button backToTopButton_sjWU" type="button"></button><div class="docPage__5DB"><aside class="theme-doc-sidebar-container docSidebarContainer_b6E3"><div class="sidebarViewport_Xe31"><div class="sidebar_njMd"><nav aria-label="Docs sidebar" class="menu thin-scrollbar menu_SIkG menuWithAnnouncementBar_GW3s"><ul class="theme-doc-sidebar-menu menu__list"><li class="theme-doc-sidebar-item-link theme-doc-sidebar-item-link-level-1 menuHtmlItem_M9Kj menu__list-item"><div>Getting Started</div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist" aria-expanded="false" href="/docs/features">What Is DataHub?</a><button aria-label="Toggle the collapsible sidebar category 'What Is DataHub?'" type="button" class="clean-btn menu__caret"></button></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item 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class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="/docs/authentication/guides/sso/initialize-oidc">Configure Single Sign-On</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="/docs/managed-datahub/remote-executor/about">Remote Executor</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item menu__list-item--collapsed"><div class="menu__list-item-collapsible"><a class="menu__link menu__link--sublist menu__link--sublist-caret" aria-expanded="false" href="/docs/managed-datahub/datahub-api/entity-events-api">DataHub API</a></div></li><li class="theme-doc-sidebar-item-category theme-doc-sidebar-item-category-level-1 menu__list-item 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menu__link--sublist-caret" aria-expanded="false" href="/docs/releases">Release History</a></div></li></ul></nav></div></div></aside><main class="docMainContainer_gTbr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs" itemscope="" itemtype="https://schema.org/BreadcrumbList"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Advanced Guides</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Plugins Guide</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: Next</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Plugins Guide</h1><p>Plugins are way to enhance the basic DataHub functionality in a custom manner.</p><p>Currently, DataHub formally supports 2 types of plugins:</p><ul><li><a href="#authentication">Authentication</a></li><li><a href="#authorization">Authorization</a></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="authentication">Authentication<a href="#authentication" class="hash-link" aria-label="Direct link to Authentication" title="Direct link to Authentication"></a></h2><blockquote><p><strong>Note:</strong> This is in <b>BETA</b> version</p></blockquote><blockquote><p>It is recommend that you do not do this unless you really know what you are doing</p></blockquote><p>Custom authentication plugin makes it possible to authenticate DataHub users against any Identity Management System.
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Choose your Identity Management System and write custom authentication plugin as per detail mentioned in this section.</p><blockquote><p>Currently, custom authenticators cannot be used to authenticate users of DataHub's web UI. This is because the DataHub web app expects the presence of 2 special cookies PLAY_SESSION and actor which are explicitly set by the server when a login action is performed.
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Instead, custom authenticators are useful for authenticating API requests to DataHub's backend (GMS), and can stand in addition to the default Authentication performed by DataHub, which is based on DataHub-minted access tokens.</p></blockquote><p>The sample authenticator implementation can be found at <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/plugin/src/test/sample-test-plugins" target="_blank" rel="noopener noreferrer">Authenticator Sample</a></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="implementing-an-authentication-plugin">Implementing an Authentication Plugin<a href="#implementing-an-authentication-plugin" class="hash-link" aria-label="Direct link to Implementing an Authentication Plugin" title="Direct link to Implementing an Authentication Plugin"></a></h3><ol><li><p>Add <em>datahub-auth-api</em> as compileOnly dependency: Maven coordinates of <em>datahub-auth-api</em> can be found at <a href="https://mvnrepository.com/artifact/io.acryl/datahub-auth-api" target="_blank" rel="noopener noreferrer">Maven</a></p><p>Example of gradle dependency is given below.</p><div class="language-groovy codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-groovy codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> dependencies {</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> def auth_api = 'io.acryl:datahub-auth-api:0.9.3-3rc3'</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> compileOnly "${auth_api}"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> testImplementation "${auth_api}"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> }</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Implement the Authenticator interface: Refer <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/plugin/src/test/sample-test-plugins" target="_blank" rel="noopener noreferrer">Authenticator Sample</a></p><details class="details_lb9f alert alert--info details_b_Ee" data-collapsed="true"><summary>Sample class which implements the Authenticator interface</summary><div><div class="collapsibleContent_i85q"><div class="language-java codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-java codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">class</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">GoogleAuthenticator</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">implements</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Authenticator</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Override</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">void</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">init</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nonnull</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Map</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)"><</span><span class="token generics class-name" style="color:rgb(255, 203, 107)">String</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token generics"> </span><span class="token generics class-name" style="color:rgb(255, 203, 107)">Object</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)">></span><span class="token plain"> authenticatorConfig</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nullable</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthenticatorContext</span><span class="token plain"> context</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// Plugin initialization code will go here</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// DataHub will call this method on boot time</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nullable</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Override</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Authentication</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">authenticate</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nonnull</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthenticationRequest</span><span class="token plain"> authenticationRequest</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">throws</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthenticationException</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// DataHub will call this method whenever authentication decisions are need to be taken</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// Authenticate the request and return Authentication</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div></div></details></li><li><p>Use <code>getResourceAsStream</code> to read files: If your plugin read any configuration file like properties or YAML or JSON or xml then use <code>this.getClass().getClassLoader().getResourceAsStream("<file-name>")</code> to read that file from DataHub GMS plugin's class-path. For DataHub GMS resource look-up behavior please refer <a href="#plugin-installation">Plugin Installation</a> section. Sample code of <code>getResourceAsStream</code> is available in sample Authenticator plugin <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/plugin/src/test/sample-test-plugins/src/main/java/com/datahub/plugins/test/TestAuthenticator.java" target="_blank" rel="noopener noreferrer">TestAuthenticator.java</a>.</p></li><li><p>Bundle your Jar: Use <code>com.gradleup.shadow</code> gradle plugin to create an uber jar.</p><p>To see an example of building an uber jar, check out the <code>build.gradle</code> file for the apache-ranger-plugin file of <a href="https://github.com/acryldata/datahub-ranger-auth-plugin/tree/main/apache-ranger-plugin" target="_blank" rel="noopener noreferrer">Apache Ranger Plugin</a> for reference.</p><p>Exclude signature files as shown in below <code>shadowJar</code> task.</p><div class="language-groovy codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-groovy codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> apply plugin: 'com.gradleup.shadow';</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> shadowJar {</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // Exclude com.datahub.plugins package and files related to jar signature</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> exclude "META-INF/*.RSA", "META-INF/*.SF","META-INF/*.DSA"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> }</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Refer section <a href="#plugin-installation">Plugin Installation</a> for plugin installation in DataHub environment</p></li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="enable-gms-authentication">Enable GMS Authentication<a href="#enable-gms-authentication" class="hash-link" aria-label="Direct link to Enable GMS Authentication" title="Direct link to Enable GMS Authentication"></a></h2><p>By default, authentication is disabled in DataHub GMS.</p><p>Follow below steps to enable GMS authentication</p><ol><li><p>Download docker-compose.quickstart.yml: Download docker compose file <a href="https://github.com/datahub-project/datahub/blob/master/docker/quickstart/docker-compose.quickstart.yml" target="_blank" rel="noopener noreferrer">docker-compose.quickstart.yml</a></p></li><li><p>Set environment variable: Set <code>METADATA_SERVICE_AUTH_ENABLED</code> environment variable to <code>true</code></p></li><li><p>Redeploy DataHub GMS: Below is quickstart command to redeploy DataHub GMS</p><div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain">datahub </span><span class="token function" style="color:rgb(130, 170, 255)">docker</span><span class="token plain"> quickstart -f docker-compose.quickstart.yml</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="authorization">Authorization<a href="#authorization" class="hash-link" aria-label="Direct link to Authorization" title="Direct link to Authorization"></a></h2><blockquote><p><strong>Note:</strong> This is in <b>BETA</b> version</p></blockquote><blockquote><p>It is recommend that you do not do this unless you really know what you are doing</p></blockquote><p>Custom authorization plugin makes it possible to authorize DataHub users against any Access Management System.
|
||
Choose your Access Management System and write custom authorization plugin as per detail mentioned in this section.</p><p>The sample authorizer implementation can be found at <a href="https://github.com/acryldata/datahub-ranger-auth-plugin/tree/main/apache-ranger-plugin" target="_blank" rel="noopener noreferrer">Authorizer Sample</a></p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="implementing-an-authorization-plugin">Implementing an Authorization Plugin<a href="#implementing-an-authorization-plugin" class="hash-link" aria-label="Direct link to Implementing an Authorization Plugin" title="Direct link to Implementing an Authorization Plugin"></a></h3><ol><li><p>Add <em>datahub-auth-api</em> as compileOnly dependency: Maven coordinates of <em>datahub-auth-api</em> can be found at <a href="https://mvnrepository.com/artifact/io.acryl/datahub-auth-api" target="_blank" rel="noopener noreferrer">Maven</a></p><p>Example of gradle dependency is given below.</p><div class="language-groovy codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-groovy codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> dependencies {</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> def auth_api = 'io.acryl:datahub-auth-api:0.9.3-3rc3'</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> compileOnly "${auth_api}"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> testImplementation "${auth_api}"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> }</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Implement the Authorizer interface: <a href="https://github.com/acryldata/datahub-ranger-auth-plugin/tree/main/apache-ranger-plugin" target="_blank" rel="noopener noreferrer">Authorizer Sample</a></p><details class="details_lb9f alert alert--info details_b_Ee" data-collapsed="true"><summary>Sample class which implements the Authorization interface </summary><div><div class="collapsibleContent_i85q"><div class="language-java codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-java codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">class</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">ApacheRangerAuthorizer</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">implements</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Authorizer</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Override</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">void</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">init</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nonnull</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Map</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)"><</span><span class="token generics class-name" style="color:rgb(255, 203, 107)">String</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token generics"> </span><span class="token generics class-name" style="color:rgb(255, 203, 107)">Object</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)">></span><span class="token plain"> authorizerConfig</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nonnull</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthorizerContext</span><span class="token plain"> ctx</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// Plugin initialization code will go here</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// DataHub will call this method on boot time</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Override</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthorizationResult</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">authorize</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Nonnull</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthorizationRequest</span><span class="token plain"> request</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// DataHub will call this method whenever authorization decisions are need be taken</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// Authorize the request and return AuthorizationResult</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token annotation punctuation" style="color:rgb(199, 146, 234)">@Override</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token keyword" style="font-style:italic">public</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">AuthorizedActors</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">authorizedActors</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token class-name" style="color:rgb(255, 203, 107)">String</span><span class="token plain"> privilege</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">Optional</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)"><</span><span class="token generics class-name" style="color:rgb(255, 203, 107)">ResourceSpec</span><span class="token generics punctuation" style="color:rgb(199, 146, 234)">></span><span class="token plain"> resourceSpec</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token comment" style="color:rgb(105, 112, 152);font-style:italic">// Need to add doc</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div></div></details></li><li><p>Use <code>getResourceAsStream</code> to read files: If your plugin read any configuration file like properties or YAML or JSON or xml then use <code>this.getClass().getClassLoader().getResourceAsStream("<file-name>")</code> to read that file from DataHub GMS plugin's class-path. For DataHub GMS resource look-up behavior please refer <a href="#plugin-installation">Plugin Installation</a> section. Sample code of <code>getResourceAsStream</code> is available in sample Authenticator plugin <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/plugin/src/test/sample-test-plugins/src/main/java/com/datahub/plugins/test/TestAuthenticator.java" target="_blank" rel="noopener noreferrer">TestAuthenticator.java</a>.</p></li><li><p>Bundle your Jar: Use <code>com.gradleup.shadow</code> gradle plugin to create an uber jar.</p><p>To see an example of building an uber jar, check out the <code>build.gradle</code> file for the apache-ranger-plugin file of <a href="https://github.com/acryldata/datahub-ranger-auth-plugin/tree/main/apache-ranger-plugin" target="_blank" rel="noopener noreferrer">Apache Ranger Plugin</a> for reference.</p><p>Exclude signature files as shown in below <code>shadowJar</code> task.</p><div class="language-groovy codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-groovy codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> apply plugin: 'com.gradleup.shadow';</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> shadowJar {</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> // Exclude com.datahub.plugins package and files related to jar signature</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> exclude "META-INF/*.RSA", "META-INF/*.SF","META-INF/*.DSA"</span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> }</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Install the Plugin: Refer to the section (Plugin Installation)<!-- -->[#plugin_installation]<!-- --> for plugin installation in DataHub environment</p></li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="plugin-installation">Plugin Installation<a href="#plugin-installation" class="hash-link" aria-label="Direct link to Plugin Installation" title="Direct link to Plugin Installation"></a></h2><p>DataHub's GMS Service searches for the plugins in container's local directory at location <code>/etc/datahub/plugins/auth/</code>. This location will be referred as <code>plugin-base-directory</code> hereafter.</p><p>For docker, we set docker-compose to mount <code>${HOME}/.datahub</code> directory to <code>/etc/datahub</code> directory within the GMS containers.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="docker">Docker<a href="#docker" class="hash-link" aria-label="Direct link to Docker" title="Direct link to Docker"></a></h3><p>Follow below steps to install plugins:</p><p>Lets consider you have created an uber jar for authorizer plugin and jar name is apache-ranger-authorizer.jar and class com.abc.RangerAuthorizer has implemented the <a href="https://github.com/datahub-project/datahub/blob/master/metadata-auth/auth-api/src/main/java/com/datahub/plugins/auth/authorization/Authorizer.java" target="_blank" rel="noopener noreferrer">Authorizer</a> interface.</p><ol><li><p>Create a plugin configuration file: Create a <code>config.yml</code> file at <code>${HOME}/.datahub/plugins/auth/</code>. For more detail on configuration refer <a href="#config-detail">Config Detail</a> section</p></li><li><p>Create a plugin directory: Create plugin directory as <code>apache-ranger-authorizer</code>, this directory will be referred as <code>plugin-home</code> hereafter</p><div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">mkdir</span><span class="token plain"> -p </span><span class="token variable" style="color:rgb(191, 199, 213)">${</span><span class="token variable environment constant" style="color:rgb(130, 170, 255)">HOME</span><span class="token variable" style="color:rgb(191, 199, 213)">}</span><span class="token plain">/.datahub/plugins/auth/apache-ranger-authorizer</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Copy plugin jar to <code>plugin-home</code>: Copy <code>apache-ranger-authorizer.jar</code> to <code>plugin-home</code></p><div class="language-shell codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-shell codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token plain"> copy apache-ranger-authorizer.jar </span><span class="token variable" style="color:rgb(191, 199, 213)">${</span><span class="token variable environment constant" style="color:rgb(130, 170, 255)">HOME</span><span class="token variable" style="color:rgb(191, 199, 213)">}</span><span class="token plain">/.datahub/plugins/auth/apache-ranger-authorizer</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Update plugin configuration file: Add below entry in <code>config.yml</code> file, the plugin can take any arbitrary configuration under the "configs" block. in our example, there is username and password</p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">plugins</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"apache-ranger-authorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"authorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">enabled</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"true"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">params</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">className</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"com.abc.RangerAuthorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">configs</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">username</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"foo"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">password</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"fake"</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Restart datahub-gms container:</p><p>On startup DataHub GMS service performs below steps</p><ol><li>Load <code>config.yml</code></li><li>Prepare list of plugin where <code>enabled</code> is set to <code>true</code></li><li>Look for directory equivalent to plugin <code>name</code> in <code>plugin-base-directory</code>. In this case it is <code>/etc/datahub/plugins/auth/apache-ranger-authorizer/</code>, this directory will become <code>plugin-home</code></li><li>Look for <code>params.jarFileName</code> attribute otherwise look for jar having name as <!-- --><<!-- -->plugin-name<!-- -->><!-- -->.jar. In this case it is <code>/etc/datahub/plugins/auth/apache-ranger-authorizer/apache-ranger-authorizer.jar</code></li><li>Load class given in plugin <code>params.className</code> attribute from the jar, here load class <code>com.abc.RangerAuthorizer</code> from <code>apache-ranger-authorizer.jar</code></li><li>Call <code>init</code> method of plugin</li></ol><br>On method call of `getResourceAsStream` DataHub GMS service looks for the resource in below order.<ol><li>Look for the requested resource in plugin-jar file. if found then return the resource as InputStream.</li><li>Look for the requested resource in <code>plugin-home</code> directory. if found then return the resource as InputStream.</li><li>Look for the requested resource in application class-loader. if found then return the resource as InputStream.</li><li>Return <code>null</code> as requested resource is not found.</li></ol></li></ol><p>By default, authentication is disabled in DataHub GMS, Please follow section <a href="#enable-gms-authentication">Enable GMS Authentication</a> to enable authentication.</p><h3 class="anchor anchorWithStickyNavbar_LWe7" id="kubernetes">Kubernetes<a href="#kubernetes" class="hash-link" aria-label="Direct link to Kubernetes" title="Direct link to Kubernetes"></a></h3><p>Helm support is coming soon.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="config-detail">Config Detail<a href="#config-detail" class="hash-link" aria-label="Direct link to Config Detail" title="Direct link to Config Detail"></a></h2><p>A sample <code>config.yml</code> can be found at <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/plugin/src/test/resources/valid-base-plugin-dir1/config.yml" target="_blank" rel="noopener noreferrer">config.yml</a>.</p><p><code>config.yml</code> structure:</p><table><thead><tr><th>Field</th><th>Required</th><th>Type</th><th>Default</th><th>Description</th></tr></thead><tbody><tr><td>plugins[].name</td><td>✅</td><td>string</td><td></td><td>name of the plugin</td></tr><tr><td>plugins[].type</td><td>✅</td><td>enum<!-- -->[authenticator, authorizer]</td><td></td><td>type of plugin, possible values are authenticator or authorizer</td></tr><tr><td>plugins[].enabled</td><td>✅</td><td>boolean</td><td></td><td>whether this plugin is enabled or disabled. DataHub GMS wouldn't process disabled plugin</td></tr><tr><td>plugins[].params.className</td><td>✅</td><td>string</td><td></td><td>Authenticator or Authorizer implementation class' fully qualified class name</td></tr><tr><td>plugins[].params.jarFileName</td><td></td><td>string</td><td>default to <code>plugins[].name</code>.jar</td><td>jar file name in <code>plugin-home</code></td></tr><tr><td>plugins[].params.configs</td><td></td><td>map<string,object></td><td>default to empty map</td><td>Runtime configuration required for plugin</td></tr></tbody></table><blockquote><p>plugins[] is an array of plugin, where you can define multiple authenticator and authorizer plugins. plugin name should be unique in plugins array.</p></blockquote><h2 class="anchor anchorWithStickyNavbar_LWe7" id="plugin-permissions">Plugin Permissions<a href="#plugin-permissions" class="hash-link" aria-label="Direct link to Plugin Permissions" title="Direct link to Plugin Permissions"></a></h2><p>Adhere to below plugin access control to keep your plugin forward compatible.</p><ul><li>Plugin should read/write file to and from <code>plugin-home</code> directory only. Refer <a href="#plugin-installation">Plugin Installation</a> step2 for <code>plugin-home</code> definition</li><li>Plugin should access port 80 or 443 or port higher than 1024</li></ul><p>All other access are forbidden for the plugin.</p><blockquote><p>Disclaimer: In BETA version your plugin can access any port and can read/write to any location on file system, however you should implement the plugin as per above access permission to keep your plugin compatible with upcoming release of DataHub.</p></blockquote><h2 class="anchor anchorWithStickyNavbar_LWe7" id="migration-of-plugins-from-applicationyaml">Migration Of Plugins From application.yaml<a href="#migration-of-plugins-from-applicationyaml" class="hash-link" aria-label="Direct link to Migration Of Plugins From application.yaml" title="Direct link to Migration Of Plugins From application.yaml"></a></h2><p>If you have any custom Authentication or Authorization plugin define in <code>authorization</code> or <code>authentication</code> section of <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/configuration/src/main/resources/application.yaml" target="_blank" rel="noopener noreferrer">application.yaml</a> then migrate them as per below steps.</p><ol><li><p>Implement Plugin: For Authentication Plugin follow steps of <a href="#implementing-an-authentication-plugin">Implementing an Authentication Plugin</a> and for Authorization Plugin follow steps of <a href="#implementing-an-authorization-plugin">Implementing an Authorization Plugin</a></p></li><li><p>Install Plugin: Install the plugins as per steps mentioned in <a href="#plugin-installation">Plugin Installation</a>. Here you need to map the configuration from <a href="https://github.com/datahub-project/datahub/blob/master/metadata-service/configuration/src/main/resources/application.yaml" target="_blank" rel="noopener noreferrer">application.yaml</a> to configuration in <code>config.yml</code>. This mapping from <code>application.yaml</code> to <code>config.yml</code> is described below</p><p><strong>Mapping for Authenticators</strong></p><p>a. In <code>config.yml</code> set <code>plugins[].type</code> to <code>authenticator</code></p><p>b. <code>authentication.authenticators[].type</code> is mapped to <code>plugins[].params.className</code></p><p>c. <code>authentication.authenticators[].configs</code> is mapped to <code>plugins[].params.configs</code></p><p>Example Authenticator Plugin configuration in <code>config.yml</code></p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">plugins</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"apache-ranger-authenticator"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"authenticator"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">enabled</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"true"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">params</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">className</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"com.abc.RangerAuthenticator"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">configs</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">username</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"foo"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">password</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"fake"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p><strong>Mapping for Authorizer</strong></p><p>a. In <code>config.yml</code> set <code>plugins[].type</code> to <code>authorizer</code></p><p>b. <code>authorization.authorizers[].type</code> is mapped to <code>plugins[].params.className</code></p><p>c. <code>authorization.authorizers[].configs</code> is mapped to <code>plugins[].params.configs</code></p><p>Example Authorizer Plugin configuration in <code>config.yml</code></p><div class="language-yaml codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#bfc7d5;--prism-background-color:#292d3e"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-yaml codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#bfc7d5"><span class="token key atrule">plugins</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">-</span><span class="token plain"> </span><span class="token key atrule">name</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"apache-ranger-authorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">type</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"authorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">enabled</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"true"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">params</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">className</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"com.abc.RangerAuthorizer"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">configs</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">username</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"foo"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token key atrule">password</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token string" style="color:rgb(195, 232, 141)">"fake"</span><span class="token plain"></span><br></span><span class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_y97N"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_LjdS"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></li><li><p>Move any other configurations files of your plugin to <code>plugin_home</code> directory. The detail about <code>plugin_home</code> is mentioned in <a href="#plugin-installation">Plugin Installation</a> section.</p></li></ol></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="slackUtm_uoBr"><div class="slackUtm_uoBr"><hr>Need more help? 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