繁體中文（台灣）
Logto 的多租戶模型解析
看看我們如何設計 Logto 的多租戶模型及其對 SaaS 應用程式的優勢。
Gao
Founder
Founder
看看我們如何設計 Logto 的多租戶模型及其對 SaaS 應用程式的優勢。
你可能聽說過一些產品使用「多租戶」這個詞來表示身份隔離：每個租戶都有自己的一套用戶、角色、權限和數據。
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xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eTenant 1%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3cg class='edgePaths'/%3e%3cg class='edgeLabels'/%3e%3cg class='nodes'%3e%3cg transform='translate(119.0703125%2c 70)' id='flowchart-u1-3' class='node default'%3e%3crect height='54' width='101.78125' y='-27' x='-50.890625' style='' class='basic label-container'/%3e%3cg transform='translate(-20.890625%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='41.78125'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eUsers%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3cg transform='translate(119.0703125%2c 174)' id='flowchart-r1-4' class='node default'%3e%3crect height='54' width='100.90625' y='-27' x='-50.453125' style='' class='basic 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class='nodeLabel'%3e%3cp%3ePermissions%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3cg transform='translate(272.140625%2c 0)' class='root'%3e%3cg class='clusters'%3e%3cg data-look='classic' id='t2' class='cluster'%3e%3crect height='332' width='222.140625' y='8' x='8' style=''/%3e%3cg transform='translate(88.375%2c 8)' class='cluster-label'%3e%3cforeignObject height='24' width='61.390625'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eTenant 2%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3cg class='edgePaths'/%3e%3cg class='edgeLabels'/%3e%3cg class='nodes'%3e%3cg transform='translate(119.0703125%2c 70)' id='flowchart-u2-0' class='node default'%3e%3crect height='54' width='101.78125' y='-27' x='-50.890625' style='' class='basic label-container'/%3e%3cg transform='translate(-20.890625%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='41.78125'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eUsers%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3cg transform='translate(119.0703125%2c 174)' id='flowchart-r2-1' class='node default'%3e%3crect height='54' width='100.90625' y='-27' x='-50.453125' style='' class='basic label-container'/%3e%3cg transform='translate(-20.453125%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='40.90625'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eRoles%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3cg transform='translate(119.0703125%2c 278)' id='flowchart-p2-2' class='node default'%3e%3crect height='54' width='147.140625' y='-27' x='-73.5703125' style='' class='basic label-container'/%3e%3cg transform='translate(-43.5703125%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='87.140625'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3ePermissions%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
這可能有些反直覺，但事實上，「多租戶」表示相反：多個租戶共享單個實例中的資源。對用戶來說，應用程式中的身份就像是駕照。例如，有了駕照，你可以在不同州駕駛（多個組織的一個身份），而不是為每個州重新申請新的駕照。
在 Logto，我們注意到了設計之初的這個混淆，並努力為你的應用程式和用戶搞清楚這一點。以下是我們的設計：
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37.5)' class='root'%3e%3cg class='clusters'%3e%3cg data-look='classic' id='template' class='cluster'%3e%3crect height='228' width='340.53125' y='8' x='8' style=''/%3e%3cg transform='translate(100%2c 8)' class='cluster-label'%3e%3cforeignObject height='24' width='156.53125'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eOrganization template%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3cg class='edgePaths'/%3e%3cg class='edgeLabels'/%3e%3cg class='nodes'%3e%3cg transform='translate(178.265625%2c 70)' id='flowchart-roles-6' class='node default'%3e%3crect height='54' width='189.84375' y='-27' x='-94.921875' style='' class='basic label-container'/%3e%3cg transform='translate(-64.921875%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='129.84375'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eOrganization roles%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3cg transform='translate(178.265625%2c 174)' id='flowchart-permissions-7' class='node default'%3e%3crect height='54' width='240.53125' y='-27' x='-120.265625' style='' class='basic label-container'/%3e%3cg transform='translate(-90.265625%2c -12)' style='' class='label'%3e%3crect/%3e%3cforeignObject height='24' width='180.53125'%3e%3cdiv style='display: table-cell%3b white-space: nowrap%3b line-height: 1.5%3b max-width: 200px%3b text-align: center%3b' xmlns='http://www.w3.org/1999/xhtml'%3e%3cspan class='nodeLabel'%3e%3cp%3eOrganization permissions%3c/p%3e%3c/span%3e%3c/div%3e%3c/foreignObject%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e)
這個模型提供了管理身份的靈活性和可重用性，特別是對於 SaaS 應用程式。如果我們看看一些熱門的 SaaS 應用程式，可以發現它們都可以適應這個模型。在不同的應用程式中，「組織」的術語可能會不同，例如「工作區」、「團隊」等。但概念是一樣的。
例如，在 Notion（一個流行的協作工具）中：
因此，用戶可以輕鬆在工作區之間切換，而不需要切換帳號或重新登入，並且保持工作區之間的隔離。將此轉換為 Logto 的模型，這意味著：
根據不同角色，用戶可以在不同的工作區（組織）中擁有不同的權限。
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對於用戶而言，他們可以享受真正的單次登入體驗。在組織間切換就像在標籤間切換一樣簡單。
SaaS 應用程式的一個優勢是它們是標準化的且可擴展的。例如，你可以在 Notion 中點幾下就創建一個新工作區，並且可以立即使用。
當你的應用程式成長時，你可能想要為每個組織新增更多角色和權限。例如，一個新角色「訪客」和一個新權限「invite:guest」。如果你需要逐一更新所有現有的組織，這可能是一場噩夢。
使用 Logto，你可以更新組織模板，然後所有現有的組織將會自動更新。
在 Logto，我們使用相同的訪問控制模型（RBAC）來管理組織和 API 資源。這意味著，如果你對 RBAC 熟悉，就不需要學習新的訪問控制模型。同時，它們是彼此隔離的，因此你可以將它們用於不同的使用情境。
最激動人心的部分是，你能同時使用它們。讓我們擴展 Notion 的例子：
大多數的 Logto SDK 支援這兩種類型的 RBAC。
不同點
組織 RBAC 和 API 資源 RBAC 在以下方面有所不同：
建立一個 SaaS 應用程式是很困難的，我們希望 Logto 可以幫助你專注於核心業務。如果你有任何疑問或建議，請不要猶豫給我們反饋。