红帽全球峰会故障排除问题
Red Hat OpenShift GitOps 1.16
OpenShift GitOps 和集群的故障排除主题
摘要
本文档提供有关如何在 OpenShift GitOps 中对问题进行故障排除的信息。
第 1 章 问题：在 Argo CD 与机器配置同步过程中自动重启
在 Red Hat OpenShift Container Platform 中，节点通过 Red Hat OpenShift Machine Config Operator (MCO) 自动更新。Machine Config Operator (MCO) 是一个自定义资源，供集群用来管理其节点的完整生命周期。
当在集群中创建或更新 MCO 资源时，MCO 会选择更新，对所选节点执行必要的更改，并通过封锁、排空和重新引导这些节点来安全地重启节点。它会处理从内核到 kubelet 的所有活动。
但是，MCO 和 GitOps 工作流之间的交互可能会带来重大性能问题和其他不必要的行为。本节介绍如何使 MCO 和 Argo CD GitOps 编配工具正常工作。
1.1. 解决方案 ：提高机器配置和 Argo CD 的性能
当您将 Machine Config Operator 用作 GitOps 工作流的一部分时，以下序列会生成子优化的性能：
- Argo CD 在提交包含应用程序资源的 Git 存储库后启动自动同步任务。
- 如果 Argo CD 在同步操作过程中发现新的或更新的机器配置，MCO 会获取机器配置的更改并开始重启节点以应用更改。
- 如果集群中的重新引导节点包含 Argo CD 应用程序控制器，应用程序控制器会终止，应用程序同步将中止。
当 MCO 按顺序重启节点时，可以在每次重启时重新调度 Argo CD 工作负载，可能需要一些时间才能完成同步。这会导致未定义的行为，直到 MCO 重启受同步中机器配置影响的所有节点。
1.2. 其他资源
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