To understand intricacies and inner workings of Jenkins X, we need to understand Kubernetes. But, you do not need to understand Kubernetes to use Jenkins X. That is one of the main contributions of the project. Jenkins X allows us to harness the power of Kubernetes without spending eternity learning the ever-growing list of the things it does. Jenkins X helps us by simplifying complex processes into concepts that can be adopted quickly and without spending months in trying to figure out “the right way to do stuff.” It helps by removing and simplifying some of the problems caused by the overall complexity of Kubernetes and its ecosystem. If you are indeed a Kubernetes ninja, you will appreciate all the effort put into Jenkins X. If you’re not, you will be able to jump right in and harness the power of Kubernetes without ripping your hair out of frustration caused by Kubernetes complexity. Continue reading →
The difference between continuous integration, delivery, and deployment is not in processes, but in the level of confidence we have in them.
The continuous deployment process is relatively easy to explain, even though implementation might get tricky. We’ll split our requirements into two groups. We’ll start with a discussion about the overall goals that should be applied to the whole process. To be more precise, we’ll talk about what I consider non-negotiable requirements. Continue reading →
Soon after I started working on The DevOps 2.3 Toolkit: Kubernetes, I realized that a single book could only scratch the surface. Kubernetes is vast, and no single book can envelop even all the core components. If we add community projects, the scope becomes even more extensive. Then we need to include hosting vendors and different ways to set up and manage Kubernetes. That would inevitably lead us to third-party solutions like OpenShift, Rancher, and DockerEE, to name a few. It doesn’t end there. We’d need to explore other types of community and third-party additions like those related to networking and storage. And don’t forget the processes like, for example, continuous delivery and deployment. All those things could not be explored in a single book so The DevOps 2.3 Toolkit: Kubernetes ended up being an introduction to Kubernetes. It can serve as the base for exploring everything else.
The moment I published the last chapter of The DevOps 2.3 Toolkit: Kubernetes, I started working on the next material. A lot of ideas and tryouts came out of it. It took me a while until the subject and the form of the forthcoming book materialized. After a lot of consultation with the readers of the previous book, the decision was made to explore continuous delivery and deployment processes in a Kubernetes cluster. The high-level scope of the book you are reading right now was born. Continue reading →
Everyone wants to implement continuous delivery. After all, the benefits are too big to be ignored. Increase the speed of delivery, increase the quality, decrease the costs, free people to dedicate time on what brings value, and so on and so forth. Those improvements are like music to any decision maker. Especially if that person has a business background. If a tech geek can articulate the benefits continuous delivery brings to the table, when he asks a business representative for a budget, the response is almost always “Yes! Do it.”
A continuous delivery project will start. Tests will be written. Builds will be scripted. Deployments will be automated. Everything will be tied into an automated pipeline and triggered on every commit. Everyone will enter a state of nirvana as soon as all that is done. There will be a huge inauguration party with a vice president having the honor to be the first one to press the button that will deploy the first release to production. Isn’t that a glorious plan everyone should be proud of? Continue reading →
At the beginning of 2016, I published The DevOps 2.0 Toolkit. It took me a long time to finish it. Much longer than I imagined.
I started by writing blog posts in TechnologyConversations.com. They become popular and I received a lot of feedback. Through them, I clarified the idea behind the book. The goal was to provide a guide for those who want to implement DevOps practices and tools. At the same time, I did not want to write a material usable to any situation. I wanted to concentrate only on people that truly want to implement the latest and greatest practices. I hoped to make it go beyond the “traditional” DevOps. I wished to show that the DevOps movement matured and evolved over the years and that we needed a new name. A reset from the way DevOps is implemented in some organizations. Hence the name, The DevOps 2.0 Toolkit. Continue reading →
Jenkins (forked from Hudson after a dispute with Oracle) has been around for a long time and established itself as the leading platform for the creation of continuous integration (CI) and continuous delivery/deployment (CD) pipelines. The idea behind it is that we should create jobs that perform certain operations like building, testing, deploying, and so on. Those jobs should be chained together to create a CI/CD pipeline. The success was so big that other products followed its lead and we got Bamboo, Team City, and others. They all used a similar logic of having jobs and chaining them together. Operations, maintenance, monitoring, and the creation of jobs is mostly done through their UIs. However, none of the other products managed to suppress Jenkins due to its strong community support. There are over one thousand plugins and one would have a hard time imagining a task that is not supported by, at least, one of them. The support, flexibility, and extensibility featured by Jenkins allowed it to maintain its reign as the most popular and widely used CI/CD tool throughout all this time. The approach based on heavy usage of UIs can be considered the first generation of CI/CD tools (even though there were others before). Continue reading →