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up-to-date documentation, see the <b><a href="/docs/latest/about/introduction">latest version</a></b> (<!-- -->1.5.0<!-- -->).</div></div><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_OVgt"><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">Architecture</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">Proxy User Mode</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">Version: 1.1.1</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"><header><h1>Proxy User Mode</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="1-background">1 Background<a class="hash-link" href="#1-background" title="Direct link to heading"></a></h2><p>At present, when linkis is executing the task submitted by the user, the main process service of linkis will switch to the corresponding user through sudo -u ${submit user}, and then execute the corresponding engine startup command. |
| This requires creating a corresponding system user for each ${submit user} in advance, and configuring relevant environment variables. |
| For new users, a series of environment initialization preparations are required. Frequent user changes will increase operation and maintenance costs, and there are too many users, so resources cannot be configured for a single user, and resources cannot be well managed. If the A agent can be executed to the designated agent user, the execution entry can be converged uniformly, and the problem of needing to initialize the environment can be solved.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="2-basic-concepts">2 Basic Concepts<a class="hash-link" href="#2-basic-concepts" title="Direct link to heading"></a></h2><ul><li>Login user: the user who directly logs in to the system through the user name and password</li><li>Proxy user: The user who actually performs the operation as the login user is called the proxy user, and the related operations of the proxy login user</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="3-goals-achieved">3 Goals achieved<a class="hash-link" href="#3-goals-achieved" title="Direct link to heading"></a></h2><ul><li>Login user A can choose a proxy user and decide which proxy user to proxy to</li><li>Login user A can delegate tasks to proxy user B for execution</li><li>When logging in to user A as an agent to agent user B, you can view B-related execution records, task results and other data</li><li>A proxy user can proxy multiple login users at the same time, but a login user can only be associated with a certain proxy user at the same time</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="4-realize-the-general-idea">4 Realize the general idea<a class="hash-link" href="#4-realize-the-general-idea" title="Direct link to heading"></a></h2><p>Modify the existing interface cookie processing, which needs to be able to parse out the logged-in user and proxy user in the cookie</p><div class="language-html codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#F8F8F2;--prism-background-color:#282A36"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-html codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#F8F8F2"><span class="token plain">The key of the proxy user's cookie is: linkis_user_session_proxy_ticket_id_v1</span><br></span><span class="token-line" style="color:#F8F8F2"><span class="token plain">Login user's cookie: linkis_user_session_ticket_id_v1</span><br></span><span class="token-line" style="color:#F8F8F2"><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 class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path 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 class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><ul><li>The relevant interface of linkis needs to be able to identify the proxy user information based on the original UserName obtained, and use the proxy user to perform various operations. And record the audit log, including the user's task execution operation, download operation</li><li>When the task is submitted for execution, the entry service needs to modify the executing user to be the proxy user</li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="5-things-to-consider--note">5 Things to Consider & Note<a class="hash-link" href="#5-things-to-consider--note" title="Direct link to heading"></a></h2><ul><li>Users are divided into proxy users and non-proxy users. Users of proxy type cannot perform proxying to other users again.</li><li>It is necessary to control the list of logged-in users and system users who can be proxied, to prohibit the occurrence of arbitrary proxies, and to avoid uncontrollable permissions. It is best to support database tables to configure, and can be directly modified to take effect without restarting the service</li><li>Separately record log files containing proxy user operations, such as proxy execution, function update, etc. All proxy user operations of PublicService are recorded in the log, which is convenient for auditing</li></ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/linkis-website/edit/dev/versioned_docs/version-1.1.1/architecture/proxy-user.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/1.1.1/architecture/job-submission-preparation-and-execution-process"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Job Submission</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/1.1.1/architecture/add-an-engine-conn"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Add an EngineConn</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#1-background" class="table-of-contents__link toc-highlight">1 Background</a></li><li><a href="#2-basic-concepts" class="table-of-contents__link toc-highlight">2 Basic Concepts</a></li><li><a href="#3-goals-achieved" class="table-of-contents__link toc-highlight">3 Goals achieved</a></li><li><a href="#4-realize-the-general-idea" class="table-of-contents__link toc-highlight">4 Realize the general idea</a></li><li><a href="#5-things-to-consider--note" class="table-of-contents__link toc-highlight">5 Things to Consider & Note</a></li></ul></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Linkis</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/docs/latest/about/introduction">Document</a></li><li class="footer__item"><a class="footer__link-item" href="/faq/main">FAQ</a></li><li class="footer__item"><a href="https://github.com/apache/linkis/releases" target="_blank" rel="noopener noreferrer" class="footer__link-item">Releases</a></li></ul></div><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://github.com/apache/linkis" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub</a></li><li class="footer__item"><a href="https://github.com/apache/linkis/issues" target="_blank" rel="noopener noreferrer" class="footer__link-item">Issue Tracker</a></li><li class="footer__item"><a href="https://github.com/apache/linkis/pulls" target="_blank" rel="noopener noreferrer" class="footer__link-item">Pull Requests</a></li></ul></div><div class="col footer__col"><div class="footer__title">Subscribe Mailing List</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/community/how-to-subscribe">How to Subscribe</a></li><li class="footer__item"><a href="mailto:dev-subscribe@linkis.apache.org" target="_blank" rel="noopener noreferrer" class="footer__link-item">Subscribe Mail</a></li><li class="footer__item"><a href="https://lists.apache.org/list.html?dev@linkis.apache.org" target="_blank" rel="noopener noreferrer" class="footer__link-item">Mail Archive</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright"><div><img style="height:50px" alt="Apache Software Foundation" src="/img/incubator-logo.svg"><p style="color: #999999; padding: 0 20px 30px;font-weight:400;text-align:left">Apache Linkis is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. 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