The tutorial is a comprehensive guide to DevOps, an approach that has become revolutionary in the IT world. DevOps integrates development and operational processes, making them more flexible, faster and more efficient. This book is the perfect start for those who want to understand DevOps and its principles and put them into practice. In the world of information technology, DevOps is not just a technical approach, but a real revolution in the way software products are created, deployed and maintained. This term, derived from the words "development" (development) and "operations" (operation), personifies the harmonious merger of the two most important aspects of 1T processes. In the first chapter, students will get acquainted with the basics of DevOps, its history and significance in the modern world. This section creates the basis for understanding the entire course, providing readers with the necessary context. Further, the manual immerses students in the key principles of DevOps, from culture and automation to monitoring and sharing knowledge. These principles are the basis for the successful implementation of DevOps in any organization. Particular attention is paid to the DevOps toolkit. Readers will learn about key tools such as Git, CICD, Docker and Kubernetes. These tools have become standards in the industry and are necessary for any DevOps engineer. Once the basics are mastered, students will delve into more advanced topics such as infrastructure, monitoring and logging, and security in DevOps.