it can be declar- ative based on a source of truth. Based on a reconciliation loop, the GitOps controller makes changes to the cluster by deploying new instances, once those changes have been committed by the GitOps controller. What’s powerful about this method is that you no longer have to wait for the CI/CD process to finish before detecting and correcting drift. The GitOps controller acts as both These components include the source controller, the Kustomize controller, the Helm controller, the notification controller, and the image automation controller. Flux was born out of the best practices

Deployment Pipeline GitOps implements a Kubernetes controller that listens for and synchronizes deployments to your Kubernetes cluster. The controller uses the operator pattern. This is significant With the operator pattern, an agent acts on behalf of the cluster. It listens to events relating to custom resource changes, and then applies those changes based on a deployment policy. The agent is responsible is running on it. 1. Step through the setup screens and choose Generic Kubernetes. 2. Run the custom command that appears on your master node. After running the command, you will see several objects

执行以下操作的控制器： 持续监控 Git 存储库的更改 监控正在运行的应用程序 将 live 状态与所需的目标状态进行比较 部署新更改 示例包括 Argo CD Application Controller 检测 OutOfSync 应用程序状态，并选择性地采取纠正操 作。 应 应用程序 用程序 自定 自定义资 义资源 源(CR) 描述如何部署 Argo CD 应用程序的资源的 YAML 清单。 CRD 定义单个 ApplicationSet CR，以生成和更新多个对应的 Argo CD Application CR。 ApplicationSet Controller (Argo CD ApplicationSet Controller) Argo CD 中存在并处理 ApplicationSet CR 的自定义 Kubernetes 控制器。此控制器会根据 ApplicationSet Argo CD 组件： 从源仓库（如 Git、Helm 或开放容器项目(OCI)）读取 生成对应的应用程序清单 运行自定义配置管理工具 将结果返回到 Argo CD Application Controller Argo CD 资 资源 源(ArgoCD CR) 描述给定 Argo CD 实例的预期状态的 CR。它允许您配置组成 Argo CD 实例的组件和设置。 Argo CD 服 服务 务器

工作负载移到基础架构节点。以下是您 可以移动的 control plane 工作负载： kam deployment 集群部署 集群部署（后端服务） openshift-gitops-applicationset-controller 部署 部署 openshift-gitops-dex-server 部署 部署 openshift-gitops-redis 部署 部署 openshift-gitops-redis-ha-haproxy openshift-gitops-repo-sever 部署 部署 openshift-gitops-server 部署 部署 openshift-gitops-application-controller statefulset openshift-gitops-redis-server statefulset 流程 流程 1. 运行以下命令，将现有节点标记为基础架构： 2. 编辑 GitOpsService AGE IP NODE NOMINATED NODE READINESS GATES openshift-gitops-operator-controller-manager-abcd 2/2 Running 0 11m 94.142.44.126

MVCC）： MVCC ( ) ，即多版本并发控制，主要解决的是并发读写时的冲突问题，利用该机制在读写时候可以去除锁机制 Multi-version Concurrency Controller (备注：我认为利用 MVCC 可以保证事务 ACID 中的 C(一致性) 和 I(隔离性)) 方案主要借鉴 leveldb 与 etcd(boltdb) 中事务的实现（主要利用

公有云方面，国内公有云支持阿里云、腾讯云、华为云，国外公有云支持 AWS、 Azure;  私有基础架构方面,  负载均衡方面，支持 F5。  SDN 方面，支持华为 Agile Controller, VMware NSX-T, 华三 SDN。  物理机方面, 支持  DELL：R720，R730，R930  HP：DL 380 Gen8，DL 580 Gen8, DL 380

是一种统一纳管虚拟化平台、私有云、公有云，整合对外提供在线运行环 境服务及全生命周期管理的平台。 F5 主流的硬件负载均衡产品，一直以来市场占有率非常高，直到 2021 年 3 月才被深信服超越。 华为 Agile Controller 华为硬件 SDN 产品 容器云 指 k8s 容器云管理平台 常见的容器云管理平台有 OpenShift、Rancher、时速云、灵雀云等。 杭州飞致云信息科技有限公司 9 云账号

some simple configuration ● Add / remove offerings you are keen to test and see in action ● Add custom configuration on top of simple setup ● Install in cluster with other business applications, where some simple configuration ● Add / remove offerings you are keen to test and see in action ● Add custom configuration on top of simple setup With requirements such as: ● Multicluster ● GitOps integration Second Demo What’s next? Control Plane Data Plane istiod Manages data plane components Handles Custom Resources Handles actual traffic Can be standalone or sidecar Other Container Istio Sidecar Proxy

from Git and in most cases, this is not what you want. State difference Argo supports ​custom diffs​ and Flux​ has a recommendation​ but I consider these workarounds as simple hacks that move developers often have to build additional cruft on top of the deployment platform and ever resort to custom low-level scripts that tie them together. It is always important to remember that while on reach production) cannot be measured easily if your deployment is handled by multiple tools and custom glue code (a very common occurrence in companies of all sizes). It should be clear that we

master syncPolicy: automated: prune: false selfHeal: false ● Argo CD Application is a Custom Resource (CR) that defines the app in a declarative manner ● Application definition includes: Prometheus ● In-cluster Tekton catalog and hub ● Jenkins migration guide ● Deployment pattern custom tasks ● OpenShift Pipelines GA ● Disconnected clusters (air-gapped) ● Proxy support ● Pipeline