your system. What’s significant about this is that you don’t need cluster credentials to make a change to your system. With GitOps, there is a segregated environment that the state definition lives 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 changes by creating issues, and reviewing pull requests. GitOps allows you to roll back any kind of change made in your cluster. In addition to this, you also get built-in observability, which enables

Performance: The Facts 4 4. Change failure rate This can be seen as a measure of quality in the release process. The best performers in the DORA study reported a change failure rate of less than 15% service Less than one hour Less than one day Less than one day Between one week and one month Change failure rate 0-15% 0-15% 0-15% 46-60% A surprise: speed and stability support one another provides an indication of throughput. Combining the third and fourth (time to restore service and change failure rate) gives an indication of stability. These two concepts – speed and stability – might

History of Infrastructure as Code Challenges of Infrastructure as Code Containers Change the Game Argo CD Flux Open Cluster Management Other GitOps Tools PipeCD methodologies like waterfall. The process was speeding up, so the delivery of that software had to change to catch up. The DevOps movement was born out of the need to automate application delivery. It infrastructure layer managing the applications. One day there was an incident where a configuration change took down their entire hosting platform, but the DevOps engineers were able to bring back the system

you Git using DevOps and GitOps together Deployment/Cycle Time Deployment Frequency Change Lead Time Change Failure Rate MTTR vs. MTTF (mean time to recover/fail) P.3 Simplify Kubernetes operations cluster. 1 3 2 4 GitOps doesn’t require cluster credentials or manual intervention to make a change to the system. As a segregated environment, the system can only be changed through Git, thereby 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

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

manage your entire software stack through Git and treat your servers as your source code. Every change and configuration is done through a pull request and everyone has access to the application, which should trust the platform you are building on. With GitOps, you can make sure that each configuration change is verified by your peers and automatically tested before it is deployed. Your platform should not anyone else knowing about it. GitOps allows you to have a team of people who are responsible for each change being made on the platform. Beyond this, it helps to build a platform that is modular, flexible

apply a minor patch to your system state, i.e., application configuration. So you can commit that change to Git with version number 1.0.1 and push those changes. In case 1.0.1 does not bring the expected What's significant about this is that you don't need specific cluster credentials to make a change to your system. With GitOps, there is a segregated environment, and the state definition lives manifests. The “where” to refactor/change are the base manifests, e.g., a deployment.yaml. The “what” to change are the overlays or small snippets of YAML to change, e.g., a replica count, volume mounts

want to change the state you need to perform a Git operation such as creating a commit or opening a pull request Specifically for Kubernetes, GitOps says that you must not use `kubectl` to change the example, if you have 20 git repositories with Kubernetes manifests and you need to make a central change (e.g. adding a new company-wide label on each deployment) you need to manually make 20 Git commits platform that follows the full journey of each code change, from commit to deployment. This way you will have full traceability on each production change and can also easily answer critical DevOps metrics

their infrastructure as code and version control them via Git. Whenever a new change is required, a pull request with the new change is created, executing the CI/CD pipeline to provision or modify the infrastructure infrastructure as a part of the CI/CD pipeline, any application modification that requires an infrastructure change can be bundled and managed together. It also makes it easier to troubleshoot production bugs, such Then the git operator will compare the states. This new configuration will identify this as a state change and automatically orchestrate the underlying infrastructure to match the desired state. The delivery

deployed from Argo CD GUI or CLI (argocd or kubectl or oc) Argo CD - Synchronizing Poll/Push Change in git Pushed to Argo CD Check Sync Status Synchronize Argo CD - Challenges It’s not all rainbows Infrastructure repo Application Developer Infrastructure Admin Merge PR to “master” 1 2 3 4 5 Push change and open PR Merge PR to “dev” repo Argo CD - Avoiding Duplication Argo CD enables deployment