truth for declarative infrastructure and application code. In GitOps, the desired state of the system is versioned and stored in a Git repository, and a reconciliation loop continuously monitors and published by the GitOps Working Group: The desired state of a GitOps managed system must be: 1. Declarative A system managed by GitOps must have its desired state expressed declaratively the source. 4. Continuously reconciled Software agents continuously observe the actual system state and attempt to apply the desired state. The Philosophy of GitOps | 07 3 KEY ELEMENTS

unrelated. Is GitOps something that application developers use? Is it for infra- structure folks or system administrators? Is it something you can buy off the shelf? Or is it just a fancy new term for DevOps change took down their entire hosting platform, but the DevOps engineers were able to bring back the system in about 40 minutes. When asked how they did it so quickly, they described their process, which cofounder Alexis Richardson called “GitOps.” The DevOps engineers over at Weaveworks came up with a system that allowed them to return their entire platform (not just the workloads running on them) back

• GitOps for Kubernetes Essentials • Conclusion Git is the most widely used version control system, with more than 80 percent of its market share in today’s software industry. GitOps is a methodology infrastructure definitions can be kept alongside application code in Git. Keeping your entire system in Git means that your development team uses familiar Git-based workflows and pull requests to (VCS) like Git should be the only source of truth. Whatever changes one wants to perform in the system should be declared and always committed first in Git or the GitLab repo alone. This helps to identify

日志 监控告警 Lifecycle Management 网络 计算 存储 数据库 System Resource Monolithic Sprint Cloud Coding VScode EFK Prometheus Serverless Tencent Serverless System Resource Mysql Ceph Docker KVM 业务运维 平台运维 … System Resource Serverless 介绍 什么是 Serverless Application ❑ 无服务器：不代表真的不需要服务器，只不过服务器由云厂商维护 ❑ 是一种软件系统架构思想和方法，不是软件框架、类库或者工具 ❑ 核心思想：无须关注底层资源，比如：CPU、内存和数据库等，只 需关注业务开发 用户运维 Cloud Vendor System Resource 需要运维实现故障恢复逻辑 ❑ 如果没有故障恢复逻辑，需要运维介入 • 响应慢 有风险 ❑ 自动回复，秒 级 ❑ 每次请求都是一个新的实例 虚拟机 容器 Serverless 性能调优 Database Linux OS 虚拟机 Database Tomcat Network Runtime Serverless vs. IaaS 运维能力 安全保障 Serverless vs. IaaS 运维能力

evolved further by incorporating microservices-based architectures and even databases in the form of database DevOps. Now there’s a new kind of Ops. GitOps is rapidly gaining popularity to extend the scope apply when implementing and dealing with GitOps. Let’s take a look. Declarative system In the GitOps model, the complete system is configured declaratively. This declarative approach is focused on the result facilitating convenient deployments and rollbacks. The system state is versioned in Git All the declarative states are stored in the version-controlled system, which acts as the single source of truth. With

pipelines GENERAL DISTRIBUTION 17 What is Cloud-Native CI/CD? Designed with microservices and distributed teams in mind OPENSHIFT PIPELINES Containers Built for container apps and runs on Kubernetes

1）进入备份目录解压：gunzip fit2cloud_$date.sql.gz 2）登录数据库后新建数据库并导入数据 mysql -uroot -pPassword123@mysql CREATE DATABASE fit2cloud_01 /*!40100 DEFAULT CHARACTER SET utf8mb4 */; use fit2cloud_01; source /backup/mysq

OSS、华为云 OBS、Ceph、Swift、Azure； Kubernetes管理 ⽀持对 Kubernetes 进⾏运维审计。 JumpServer 的数据库审计功能 数据库运维安全审计 Database Auditing 连接⽅式 命令⾏⽅式 数据库代理直连⽅式，可使⽤数据库管理⼯具（例如 Navicat、SQLyog 等）进⾏直连操作 Web GUI ⽅式 远程应⽤ ⽀持的数据库 MySQL

significantly speed up your team’s ability to ship features. eBook 4 The Principles of GitOps The entire system is described declaratively. Kubernetes is just one example of many modern cloud native tools that reproduced. --------------- --- The canonical desired system state is versioned in Git. With the declaration of your system stored in a version control system, and serving as your canonical source of truth automatically applied to the system. Once you have the declared state kept in Git, the next step is to allow any changes to that state to be automatically applied to your system. What’s significant about

delivery teams can release software continuously, and with full confidence in the reliability of the system. THE GITOPS GUIDE TO BUILDING & MANAGING INTERNAL PLATFORMS 3 weave.works ▼ Self-service In the past, the only way a developer could get access to servers, data, or software was to ask a system administrator. In the modern era, however, developers require on-demand access to a variety of tools 3. Enforce zero-trust security 4. Sidecars enable better security A platform is an intricate system and it cannot be bought ready made from any vendor. It’s something that needs to be custom-built