Kubernetes Essentials • Conclusion Git is the most widely used version control system, with more than 80 percent of its market share in today’s software industry. GitOps is a methodology which revolves recreate a new system independent of the compromised one, reducing downtime and allowing for better incident response. Also, separating responsibility between packaging software and releasing it of Kubernetes resource. Kubernetes deployments have the following properties that make them perfect for GitOps-style deployment workflows: • Automation: Kubernetes provides a built-in mechanism

weeks (or months!) to provision an environment The application behaves different in production than it did in test Environments are all manually configured (“pets vs. cattle”) Production deployments resources One-click updates for platform, services, and applications OpenShift and GitOps - A Perfect Match ● OpenShift is a declarative environment ○ Cluster configuration is declared and Operators OpenShift Templates Patching framework Ability to apply yaml directly Some use-cases may work better with templates No support in OpenShift GUI console Great for enterprise teams, not as good for

you have to accept if you wish to use GitOps with Helm charts making the process much more complex than needed. Continuous Deployment and GitOps do not mix together GitOps is great as a Continuous Delivery release candidate that is ready to be sent to production. GitOps and Continuous Delivery are a perfect match, as the Pull Request process dictated by GitOps can function as a quality gate that approves/rejects Git. I don’t see this as an essential requirement for handling secrets in GitOps if there is a better proposal. On the topic of rollbacks, the ideal GitOps tool should be able to perform the following:

experience that will improve developer productivity. But it’s not just about providing better tools. It’s about providing a better way to access these tools and resources that eliminate obstacles. Developers forever to get what they need. It’s a good idea to have a consistent process in place, but it’s even better to have a consistent experience for your developers. Especially if your organization has numerous handful of what we call core locations, 20 to 25, then there are near edge locations and there are more than 10,000 edge locations.” — Vuk Gojnic, Deutsche Telekom With this tremendous infrastructure complexity

continuous integration (CI) and continuous delivery (CD) tooling. My mindset at the time was, “We can do better.” We had new, declarative tools for infrastructure and a new paradigm to work. However, there weren’t the holy grail of software and infrastructure management.” At the time, someone was trying to do better: A small, scrappy startup called Weaveworks. They’re the ones who coined the term GitOps in 2017 experts in GitOps. He deftly fielded questions about the topic live on-air and answered them more often than not as if this were second nature. Christian embodies GitOps and applies it where it makes sense

complements monitoring by providing a broader and more detailed view of the system, allowing for better understanding and troubleshooting of complex and dynamic environments. This allows teams to monitor practices. The process involves managing and provisioning infrastructure resources using code rather than manual processes or interactive configuration tools. Ultimately this means codifying your workload individuals or teams to have direct access to the environment. A pool of contributors needs nothing more than existing repository-level git permissions. Designing Your GitOps Strategy | 12 3 KEY ELEMENTS

configured declaratively. This declarative approach is focused on the result (desired state) rather than the steps needed to achieve the required result. This declarative approach allows users to specify also makes it easier to troubleshoot production bugs, such as network connectivity, as users have better visibility of the changes with the deployments. Increased productivity The source-controlled, validated

has 4 clusters with Istio multicluster setup. Benefits are: ● Separate cluster management for better control and audit ● Redundancy and High Availability But it does (did) pose challenges... What

on the cart have all changed to red! So that’s useful for manually gated changes, but it’s even better to do continuous delivery. Enable the Continuous Delivery policy by toggling the ‘Automate’ button

company is a technology company now. Yet, like all approaches to software development, there is more than one way to implement DevOps. As the DevOps Research and Assessment group (DORA) found in their recent SOFTWARE SUCCESS LEADS TO OPERATIONAL SUCCESS In publishing its latest report, DORA has done more than simply measure the impact of DevOps practices. It has identified four key performance indicators production release. Businesses that perform best against this measure report average lead times of less than a day. Businesses that are not performing well reported an average lead time of between one and six