Hands-On Docker for Microservices with Python

A step-by-step guide to building microservices using Python and Docker, along with managing and orchestrating them with Kubernetes Key Features Learn to use Docker containers to create, operate, and deploy your microservices Create workflows to manage independent deployments on coordinating services using CI and GitOps through GitHub, Travis CI, and Flux Develop a REST microservice in Python using the Flask framework and Postgres database Book DescriptionMicroservices architecture helps create complex systems with multiple, interconnected services that can be maintained by independent teams working in parallel. This book guides you on how to develop these complex systems with the help of containers. Youll start by learning to design an efficient strategy for migrating a legacy monolithic system to microservices. Youll build a RESTful microservice with Python and learn how to encapsulate the code for the services into a container using Docker. While developing the services, youll understand how to use tools such as GitHub and Travis CI to ensure continuous delivery (CD) and continuous integration (CI). As the systems become complex and grow in size, youll be introduced to Kubernetes and explore how to orchestrate a system of containers while managing multiple services. Next, youll configure Kubernetes clusters for production-ready environments and secure them for reliable deployments. In the concluding chapters, youll learn how to detect and debug critical problems with the help of logs and metrics. Finally, youll discover a variety of strategies for working with multiple teams dealing with different microservices for effective collaboration. By the end of this book, youll be able to build production-grade microservices as well as orchestrate a complex system of services using containers. What you will learn Discover how to design, test, and operate scalable microservices Coordinate and deploy different services using Kubernetes Use Docker to construct scalable and manageable applications with microservices Understand how to monitor a complete system to ensure early detection of problems Become well versed with migrating from an existing monolithic system to a microservice one Use load balancing to ensure seamless operation between the old monolith and the new service Who this book is forThis book is for developers, engineers, or software architects who are trying to move away from traditional approaches for building complex multi-service systems by adopting microservices and containers. Although familiarity with Python programming is assumed, no prior knowledge of Docker is required.