changed drastically. The “benevolent dictator for life” of any given codebase is being replaced with a team of developers who have to collaborate on a codebase to move it forward. Instead of a single developer these tools and resources that eliminate obstacles. Developers should not have to file a list of support tickets and wait forever to get what they need. It’s a good idea to have a consistent process in application development teams that build features and release code into production. Platform teams, on the other hand, exist to support application development teams and make resources available to them whenever

August 2019, and I was making an internal move at Red Hat from the Ansible team to the OpenShift (Red Hat’s Kubernetes product) team. That was when I was introduced to Christian Hernandez. A font of Kubernetes Kubernetes knowledge, Christian would take the lead on building out some of the most complex systems our team could develop. Not only that, he saw a lot of potential for Kubernetes and was looking for ways pandemic. Meeting customers one-by-one via the communication platform du jour wasn’t scalable. Our team started live streaming, and on October 9, 2020, Christian and I hosted our first stream about GitOps

approach for rollbacks. At the time of writing, however, the present GitOps tools have very little support and guidance on how you perform a rollback in a standard way. Observability for GitOps (and Git) important to remember that some of the most useful questions in a software team are the following: ● Does our production environment contain feature X? ● Has feature X cleared our staging environment environment? ● Are bugs X, Y present only in staging or also in production as well? These kinds of questions are pretty important for most product owners and project managers and finding an answer

months. 2. Lead time for code changes This metric refers to the average time from check-in to production release. Businesses that perform best against this measure report average lead times of less than one month Change failure rate 0-15% 0-15% 0-15% 46-60% A surprise: speed and stability support one another Combining the first and second SDO measures (lead time and deployment frequency) provides relinquishing control. Far from it. By recording every change that is made in Git, from code commits to production configuration changes, GitOps provides a full audit trail. At any point, you can see exactly what

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 deploy both application and infrastructure kept under source control, diff tools and synchronization agents can compare what’s running in production with what’s under source control — and when a divergence is detected between the two, an alert there is a segregated environment, and the state definition lives outside of it. This allows your team to separate what they actually do from how they are going to do it. CONFIGURATION DRIFT DETECTION

compare the actual production state with what’s under source control and alerts you when there is a divergence. The ultimate goal of GitOps is to speed up development so that your team can make changes and adopting continuous delivery in your organization easier and will significantly speed up your team’s ability to ship features. eBook 4 The Principles of GitOps The entire system is described declaratively with an integrated feedback control loop speeds up your mean time to deployment. This allows your team to ship 30-100x more changes per day, and increases overall development output 2-3 times. 1. Increased

Reduces the management overhead of the application infrastructure GitOps allows developers or the Ops team to declare their infrastructure as code and version control them via Git. Whenever a new change is infrastructure change can be bundled and managed together. It also makes it easier to troubleshoot production bugs, such as network connectivity, as users have better visibility of the changes with the deployments repository. 2. Create a pull request. 3. After that, this code can be reviewed and scrutinized by another team member and finally get approved—which triggers the CI/CD pipeline. The pipeline will then inform the

development to the DevOps approach. Instead of throwing code over a wall to a separate engineering team and never seeing it again, they would prefer to have small teams of developers work together to handle The monolithic application should be split up into microservices that can each be owned by a single team. Organizational leaders must also create a new culture that celebrates iterating and failing fast contains declarative descriptions of all desired elements in the production environment while an automated process ensures the production environment matches the described state. P.4 Weave the principles

mesh. IstioCon is a community-led event, showcasing the lessons learned from running Istio in production, hands-on experiences from the Istio community, and featuring maintainers from across the Istio Ryota? ● Find me at usual places with @rytswd (Ryota Sawada) ● CTO at UPSIDER, Inc., leading Platform team ● Worked in finance space for about a decade ● Based in London ● Have 2 cats @rytswd #IstioCon UPSIDER ● Startup providing B2B payment service ● Uses Istio extensively in production ● Headquarter in Tokyo, Japan ● Remote team around the world We are hiring. @rytswd #IstioCon This slide will be

allowing for rapid, repeatable, and error-free provisioning of infrastructure. Popular tooling to support IaC includes Terraform, Pulumi, Ansible, Salt, and Puppet. These tools provide the necessary capabilities operate and maintain a GitOps system effectively, you will need a certain level of visibility. Your team will need to detect, diagnose, and resolve issues promptly, ensuring the system’s stability, reliability access controls based on changes in team compositions, responsibilities, or security requirements. Also, you can further enhance your security posture by educating team members about security practices