store. How a deployment is done will be described in later chapters. But I can describe it here at a high level. Under GitOps, the CI process just needs either to make a commit directly to your state store structures that require other considerations that are out of scope for this discussion. But taking a high-level look at things, two patterns arise when considering the structure of repositories: monorepo /functions_and_pipelines/ [5.3] https://argo-cd.readthedocs.io/en/stable/operator-manual/high_ availability/#monorepo-scaling-considerations [5.4] https://github.com/christianh814/example-kubernetes-go-repo

as measures of Software Delivery and Operational (SDO) performance and are metrics where elite and high performance excelled: 1. Deployment frequency DORA found that the world’s best performing businesses performance between the very best teams and their less successful counterparts. SDO Measure Elite High Medium Low Deployment frequency On-demand (multiple deploys per day) Between once per day deployment, but it also speeds up the detection and remediation of problems, which in turn boosts availability. This is achieved by using Git as the record for the desired state, alongside purpose-built

Kubernetes Cluster Part 2: Fork the Sock Shop Repository Part 3: Setup CI and Connect a Container Registry Part 4: Let’s Get Started with GitOps Further Resources 11 14 21 23 31 36 kicks off unit tests that eventually build the Docker image that gets pushed to the container registry. With a typical CI/CD pipeline, Docker images are deployed using some sort of bash script or CONTINUOUS INTEGRATION CONTINUOUS DEPLOYMENT Write Code VCS Code Base Unit Tests Integ Tests Container Registry DEPLOY eBook 8 Security and the Typical CI/CD Pipeline How secure is the typical CI/CD pipeline

organized them by low, mid, and high DevOps maturity. The report highlighted a DevOps maturity model that shows 80% of organizations being ‘stuck in the middle’, yet to reach high levels of DevOps maturity teams. weave.works THE GITOPS GUIDE TO BUILDING & MANAGING INTERNAL PLATFORMS 4 ▼ Score for “high use” DevOps evolution Stream-aligned teams are essentially application development teams that build are many ways to deliver resources and tools to application developers, the favorite approach of high-performing DevOps teams is to deploy an internal platform that developers use to create and access

unit tests that eventually build the Docker container image that gets pushed to the container registry. Figure 1 BROUGHT TO YOU IN PARTNERSHIP WITH REFCARD | GITOPS FOR KUBERNETES REFCARD you have to share your API credentials with the CI tooling. That means your CI tool becomes a high-value target. If someone breaks into your CI tool, they will have total control over your production image and deposits the new image to a registry. 5. The Deployment Automator watches the image registry, notices the image, pulls the new image from the registry, and updates its YAML in the config

Benefits are: ● Separate cluster management for better control and audit ● Redundancy and High Availability But it does (did) pose challenges... What is Multicluster? Why? Target Audience What to expect

consistency 7 Source Git Repository Image Registry CI The GitOps Application Delivery Model 8 Source Git Repository Config Git Repository Image Registry Kubernetes CI CD The GitOps Application Delivery Model Pull Request Push Pull Push Pull Pull Request 9 Source Git Repository Image Registry CI The GitOps Application Delivery Model Config Git Repository Kubernetes Deploy Monitor OpenShift Builds OpenShift Pipelines Source Git Repository Config Git Repository Image Registry Kubernetes The GitOps Application Delivery Model on OpenShift Pull Request Push Pull OpenShift

请使用 使用 -- /usr/bin/gather_audit_logs 参数，如以下部分所述。 参数，如以下部分所述。 $ oc adm must-gather --image=registry.redhat.io/openshift-gitops-1/must-gather- rhel8:v1.10.0 Red Hat OpenShift GitOps 1.13 了解 了解 OpenShift must-gather-s8sdh 2/2 Running 0 72s ... $ oc adm must-gather --image=registry.redhat.io/openshift-gitops-1/must-gather-rhel8:v1.10.0 第 第 3 章 章 为 为支持收集 支持收集诊 诊断信息 断信息 11 GitOps must-gather 镜 镜像 像运 运行 行 oc adm must-gather 命令： 命令： $ oc adm must-gather --image=registry.redhat.io/openshift-gitops-1/must-gather-rhel8: 1 Red Hat OpenShift GitOps

Use Repository 分⽀策略、Flow、Workflow 7. Agile & Iteration ⼩粒度、多迭代 Tools VCS CI CD Container Registry CM IaC Container orchestration Yes Yes Yes Yes 透過 Runner 間接運⽤ 透過 Runner 間接運⽤ 可整合

GitOps solution in place that not only cares about Git hashes but also offers full visibility on the high-level metrics of each deployment will allow all stakeholders to monitor the deployment process and multiple business features getting shipped. We need a way to present all this information in both high-level and low-level representations. On one hand, we need a way to provide a bird’s eye view of hashes, and deployments events that mean nothing to product owners or business analysts. 2. High-level “deployment” tools that are actually a fancy UI layer on top of a low-level tool exposing