OPERATOR LIFECYCLE MANAGER (OLM) 2.5. 了解 OPERATORHUB 2.6. 红帽提供的 OPERATOR 目录 2.7. 多租户集群中的 OPERATOR 2.8. CRD 第 第 3 章 章 用 用户 户任 任务 务 3.1. 从已安装的 OPERATOR 创建应用程序 3.2. 在命名空间中安装 OPERATOR 第 第 4 章 章 管理 管理员 员任 任务 工具来管理您的应用程序？ 用程序？ 这些 API 功能丰富，所有平台均有对应的客户端，并可插入到集群的访问控制/审核中。Operator 会 使用 Kubernetes 的扩展机制“自定义资源定义 (CRD)”支持您的自定义对象，如 MongoDB，它类似于 内置的原生 Kubernetes 对象。 Operator 与 与 Service Broker 的比 的比较？ ？ 服务代理（service Container Platform 4.14 中。 Operator Registry Operator Registry 存储 ClusterServiceVersions (CSV) 和自定义资源定义 (CRD) 以便在集群中创建， 并存储有关软件包和频道的 Operator 元数据。它运行在 Kubernetes 或 OpenShift 集群中，向 OLM 提供这些 Operator 目录数据。 OperatorHub

Internals Hubble internals Hubble Architecture Cilium Operator Highly Available Cilium Operator CRD Registration IPAM KVStore operations Identity garbage collection CiliumEndpoint garbage collection steps: Default Configuration: Datapath IPAM Datastore Direct Routing Kubernetes PodCIDR Kubernetes CRD Requirements: The cluster should be created with the taint node.cilium.io/agent-not- ready=true:NoExecute following steps: Default Configuration: Datapath IPAM Datastore Encapsulation Cluster Pool Kubernetes CRD Note BYOCNI is the preferred way to run Cilium on AKS, however integration with the Azure stack via

Internals Hubble internals Hubble Architecture Cilium Operator Highly Available Cilium Operator CRD Registration IPAM KVStore operations Identity garbage collection CiliumEndpoint garbage collection steps: Default Configuration: Datapath IPAM Datastore Direct Routing Kubernetes PodCIDR Kubernetes CRD Datapath IPAM Datastore Requirements: The cluster should be created with the taint node.cilium.io/agent-not- following steps: Default Configuration: Datapath IPAM Datastore Encapsulation Cluster Pool Kubernetes CRD Note BYOCNI is the preferred way to run Cilium on AKS, however integration with the Azure stack via

resource definition(CRD) ü custom controller Operator 是什么 • Kubernetes 中一切都可视为资源 • 默认资源类型：如 Pod、Service、Volume 等 • Kubernetes 1.7 之后增加了 CRD 自定义资源 • 二次开发扩展 Kubernetes API CRD 的基本原理 ① 观察资源的当前状态 mysql Pod-T 0. 创建 CRD 3. 集群管理 2. 调度 pod Ceph MySQL-Operator 主流程 API Server Reflector DeltaFIFO Local Storage Callbacks OnAdd OnUpdate OnDelete WorkQueue List/Watch - CRD - Pod Write Informer WorkQueue：事件合并、过滤、延时、限速 Operator CRD 里有什么 MySQL CRD • Spec：配置 & 期望状态 • Status：当前状态 MySQL 配置 • 版本 • 端口 • 存储信息 • 配置文件 集群配置 • 副本数 • 高可用模式 K8s 调度信息 • 资源套餐 • 亲和性信息 • NodeSelector 使用 CRD 2. client-go 配套工具

Kubernetes Introduction Concepts Requirements Configuration Network Policy Endpoint CRD Kubernetes Compatibility Cilium CRD schema validation Troubleshooting Istio Getting Started Using Istio Docker Cilium maintains an etcd cluster as part of the Kubernetes cluster. The identity allocation remains to be CRD-based which means that etcd remains an optional component to improve scalability. Failures in providing ploy#run-a-sample-workload]. Configuring IPAM modes CRD-backed IPAM CRD-backed IPAM This is a quick tutorial walking through how to enable CRD-backed IPAM. The purpose of this tutorial is to show how

Integrations Kubernetes Introduction Concepts Requirements Configuration Network Policy Endpoint CRD Kubernetes Compatibility Troubleshooting Istio Getting Started Using Istio Docker Cilium with Docker maintains an etcd cluster as part of the Kubernetes cluster. The identity allocation remains to be CRD-based which means that etcd remains an optional component to improve scalability. Failures in providing deploy/examples/test-deploy-kata-fc.yaml Configuring IPAM modes CRD-backed IPAM CRD-backed IPAM This is a quick tutorial walking through how to enable CRD-backed IPAM. The purpose of this tutorial is to show how

Custom resource definition (CRD), which defines a schema of settings available for configuring the operand. • Programmatic API, which defines the same data schema as the CRD and is implemented using the language, such asGo. • Custom resource (CR), which specifies values for the settings defined by the CRD; these values describe the configuration of an operand. •Controller: The brains of the operator. The 如何打造一个Operator? Operator组件 描述 Controller 负责资源的reconcile核心 逻辑实现。 CRD 自定义资源类型，以yaml 文件呈现。 API 定义了与CRD相同的数据 结构，面向编程实现，如 Go语言。 CR CRD定义的设置的值，这 些值描述operand的配置。 API type LifelongLearningJob struct { metav1

maintains an etcd cluster as part of the Kubernetes cluster. The identity allocation remains to be CRD-based which means that etcd remains an optional component to improve scalability. Failures in providing Cilium must be configured to use Kubernetes for identity allocation (identityAllocationMode set to crd). This is the default for new installations. External workloads must run a recent enough kernel for rkload]. Configuring IPAM modes CRD-backed IPAM CRD-backed by Cilium cluster-pool IPAM CRD-backed IPAM This is a quick tutorial walking through how to enable CRD-backed IPAM. The purpose of this tutorial

maintains an etcd cluster as part of the Kubernetes cluster. The identity allocation remains to be CRD-based which means that etcd remains an optional component to improve scalability. Failures in providing rkload]. Configuring IPAM modes CRD-backed IPAM CRD-backed by Cilium cluster-pool IPAM CRD-backed IPAM This is a quick tutorial walking through how to enable CRD-backed IPAM. The purpose of this tutorial details, see the section CRD-Backed Enable CRD IPAM mode 1. Setup Cilium for Kubernetes using any of the available guides. 2. Run Cilium with the --ipam=crd option or set ipam: crd in the cilium-config

only disclosed for when namespace isolation is enabled. 34 The Sidecar CRD to save the mesh Stabilizing Istio The Sidecar CRD (Custom Resource Definition) allows to control the exposure of mesh configuration spec: egress: - hosts: - ./* - istio-system/* 35 The Sidecar CRD to save the mesh Stabilizing Istio The Sidecar CRD (Custom Resource Definition) allows to control the exposure of mesh configuration Clusters ● Endpoints 36 The Sidecar CRD to save the mesh Stabilizing Istio Without sidecar CRD With sidecar CRD Istiod average CPU usage 37 The Sidecar CRD to save the mesh Stabilizing Istio Main