THE FUTURE OF DEVOPS Table of Contents 1. The Pains of GitOps 1.0 1.1. GitOps tools 1.2. Splitting CI and CD 1.3. Promotion of releases between environments 1.4. Modeling multi-environment configurations following pain points of GitOps: 1. GitOps covers only a subset of the software lifecycle 2. Splitting CI and CD with GitOps is not straightforward 3. GitOps doesn’t address promotion of releases between should make sure that all other processes and workflows are ready to work with GitOps. Splitting CI and CD with GitOps is not straightforward GitOps has been heralded as a way to decouple CI

默认日志路径：/var/log/mysqld.log 杭州飞致云信息科技有限公司 23 使用如下命令查看日志： tail -f /var/log/mysqld.log 6.3 Nginx 服务日志 Nginx 默认日志路径：/var/log/nginx；其中 access.log 为访问日志，error.log 为错误日志。 使用如下命令查看日志： tail -f /var/log/nginx/error /var/log/nginx/error.log 七、监控服务 7.1 服务说明 1）此监控服务采用部署包形式通过云管平台导入进行安装部署，能自动拉取客户端监控数 据，通过数据可视化展示，并且将异常数据通过监控告警邮件直接发送至管理员邮箱。解决 了服务器信息数据不直观、异常信息不能及时发现等问题。 2）组件：  使用 Exporter 收集客户机指标  使用 Prometheus Server 抓取数据

Stability When you use Git to manage your Kubernetes cluster, you automatically gain a convenient audit log of all cluster changes outside of Kubernetes. An audit trail of who did what, and when to your cluster PART 1: SPIN UP A KUBERNETES CLUSTER eBook 15 1. Create three droplets in Digital Ocean Sign up or log into Digital Ocean and create three Ubuntu instances with the following specifications: • Ubuntu 16 Container Registry Account at Quay Sign up for a Quay.io account, and record the user name. After you log in, you can see it under “Users and Organizations” on the top right of the repositories page. Create

revert/rollback and fork in the case of a catastrophic event. Meet compliance requirements Build an audit log of all cluster changes and attribution that meets SOC 2 compliance just by using Git. Standardize

manage all deployments both infrastructure changes and code, you automatically generate a full audit log of all cluster changes made outside of Kubernetes. In short, it tells you who did what, and when.

linux 下的 mv 操作之所以能跨文件系统，是因为它是通过 read 源文件，然后 write 目标文件的方式实现的：© XXX Page 10 of 15 mv $ strace -o log sh -c 'mv srcfile /tmp/dstfile' ... rename("srcfile", "/tmp/dstfile") = -1 EXDEV (Invalid cross-device

the result is the same each time, so the operation is idempo- tent. In contrast, adding a line to a log file leaves multiple lines for the event, so it is not idempotent. This issue doesn’t seem obvious