different environments 2.4. Achieving Continuous deployment and full Git automation 2.5. Built-in handling for rollbacks and secrets 2.6. Running GitOps at scale 2.7. Making the vision for GitOps 2.0 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 cluster be in place. Even several deployment concerns (such as promotion between environments, secret handling, smoke testing) are conveniently left out of the GitOps paradigm, and teams that adopt GitOps

CI/CD Traditional CI/CD Workflows Where does GitOps fit in? Operations via Pull Request Summary 14 Chapter 2–Tools of the Trade Infrastructure as Code History of Infrastructure Drawbacks A Mindset Shift Conclusion The Path to GitOps | 4 Contents 37 Chapter 7–Handling Secrets Common Patterns Storing Encrypted Secrets Sealed Secrets Challenges 12], the recommended way to trigger deployment is by submitting a pull request; in GitLab [1.13] it’s by submitting a merge request (the same idea with a different term). Once merged, the change will

traffic after routing has occurred, allowing more fine-grained load balancing, connection pool handling, etc. #IstioCon Brush up on Istio resources (cont’d) Target Audience What to expect Istio Multicluster demo uses Argo CD. Benefits are: ● Git repo becomes source of truth ● Clear change history ● Pull Request approval flow ● Non-Git based changes get reverted ● Easy to take down, recreate, and/or replicate

下次访问的时候，带上对应 copyset 的最新 txid (copyset_txid)，判断 PendingTx，如果 (copyset_txid >= PendingTxId && rpc_request.key == PendingTxKey)，则表明 PendingTx 对应的事务是已经成功了的，并且 PendingTx 对应事务刚好操作的是请求的 dentry，则返回 PendingTxKey 下次访问的时候，带上对应 copyset 的最新 txid (copyset_txid)，判断 PendingTX，如果 (copyset_txid >= PendingTxId && rpc_request.key == PendingTxKey)，则表明 PendingTx 对应的事务是已经成功了的，并且 PendingTx 对应事务刚好操作的是请求的 dentry，则返回 PendingTxKey 但是如果是 rename 事务的话，则需要先处理这个 PendingTx： 如果当前事务带上来的 rpc_request.txid == PendingTxId 的话，则表示上一次事务失败了，则将该 PendingTxKey 对应的 dentry 的副本删除即可 如果当前事务带上来的 rpc_request.txid > PendingTxId 的话，则表示上一次事务成功了，我们则 并删除副本 更新 dentry

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 Repository Image Registry Kubernetes The GitOps Application Delivery Model on OpenShift Pull Request Push Pull OpenShift Builds 12 Automate building container images using Kubernetes tools GENERAL Manager CLI 31 Pull Tekton Pipelines Argo CD Push source code Webhook Image Registry Pull-request app manifests Pull Dev Environment Staging Environment Prod Environment

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 Troubleshooting Auditing Rollbacks Changes are automatically applied when approved When a pull or merge request is made, it will be verified and then approved since all the changes are stored in Git. Furthermore will: Declare the infrastructure as code. 1. Push the code to a Git repository. 2. Create a pull request. 3. After that, this code can be reviewed and scrutinized by another team member and finally get

Not only are your continuous integration and continuous deployment pipelines all driven by pull request, but your operations tasks are also fully reproducible through Git. 6. Stronger Security Guarantees changes can be triggered, stored, validated and audited in Git Ops changes can be made by pull request including rollbacks Ops changes can be observed and monitored Since all of your developers are cluster. Here is a typical developer workflow for creating or updating a new feature: 1. A pull request for a new feature is pushed to Git for review. 2. The code is reviewed and approved by a colleague

pull request. GitOps allows you to create and 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 changes in Git repositories and enables you to automate their deployment by simply approving a pull request. Setup production-ready clusters in a fraction of the time it takes. Constantly monitor for drift

Understand exact state during any prior time period ● Accessible - Changes only require a pull request ● Git as a system of record for the desired state of configuration ● Pull requests drive all application

through the tools they work in everyday. Changes are automatically applied to the cluster once a Pull Request is approved and merged. Changes are handled by reconcilers that look for discrepancies between what