[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-09-01。"],[],[],null,["This page shows you how to secure your containers by enabling SELinux. SELinux\nis supported for Red Hat Enterprise Linux (RHEL). If your host machines are\nrunning RHEL and you want to enable SELinux for your cluster, you must enable\nSELinux in all of your host machines. Starting with Google Distributed Cloud release\n1.9.0, you can enable or disable SELinux before or after cluster creation or\ncluster upgrades. When SELinux is enabled on the host, it is enabled for the\ncontainer runtime.\n\nCheck if SELinux is enabled\n\nSELinux is enabled on RHEL by default.\n\n- To verify, run:\n\n getenforce\n\nThe command returns either `Enforcing`, `Permissive`, or `Disabled`. If the\ncommand returns `Enforcing`, then you can proceed with upgrading or creating\nyour clusters.\n\nEnable SELinux\n\nIf the `getenforce` command returns `Permissive`, you can switch to `Enforcing`\nmode using the `setenforce` command. Toggling between `Permissive` and\n`Enforcing` mode using `setenforce` doesn't require a system reboot. However, if\nyou want the changes to be persistent across reboots, you must update the\n`/etc/selinux/config` file.\n\n- To switch to `Enforcing` mode, run:\n\n sudo setenforce 1 # temporary\n sudo sed -i 's/SELINUX=permissive/SELINUX=enforcing/g' /etc/selinux/config # persistent - after reboot\n\nIf SELinux is `Disabled`, to enable it, we recommend to first enable it in\n`Permissive` mode first and reboot the system to verify that the system boots\nsuccessfully. If there are no SELinux errors, then you can safely switch SELinux\nto `Enforcing` mode.\n\n1. **Optional** : Enable SELinux in `Permissive` mode:\n\n sudo sed -i 's/SELINUX=disabled/SELINUX=permissive/g' /etc/selinux/config\n sudo reboot\n\n2. If the system reboots successfully with no SELinux errors, then you can\n enable `Enforcing` mode:\n\n sudo sed -i 's/SELINUX=disabled/SELINUX=enforcing/g' /etc/selinux/config\n sudo reboot\n\nOnce SELinux is enabled in `Enforcing` mode, SELinux is enabled for all\nprocesses on the host, including the container runtime."]]