If you want to learn how to build modern, scalable software with Docker and Kubernetes, then this book is for you. Kubernetes is an open-source, efficient platform to host your applications in a safe and scalable environment, and Docker is the virtualization architecture from the future! Without Docker, your computer may look like an unwanted tray. Apps have all kinds of dependencies. Some applications rely on system-specific libraries for common tasks such as sound, network, graphics, etc. Others may depend on standard libraries for the language in which they are written. Some others depend on other applications, such as how a Java application depends on a Java virtual machine or a web application may depend on a database. Typically, running a program requires exclusive access to scarce resources, such as a network connection or file. Today, Docker-free applications extend to the entire file system and create a complex network of interactions. Docker keeps things organised by isolating everything with pots and paintings.