Book Image

Modern DevOps Practices

By : Gaurav Agarwal
Book Image

Modern DevOps Practices

By: Gaurav Agarwal

Overview of this book

Containers have entirely changed how developers and end-users see applications as a whole. With this book, you'll learn all about containers, their architecture and benefits, and how to implement them within your development lifecycle. You'll discover how you can transition from the traditional world of virtual machines and adopt modern ways of using DevOps to ship a package of software continuously. Starting with a quick refresher on the core concepts of containers, you'll move on to study the architectural concepts to implement modern ways of application development. You'll cover topics around Docker, Kubernetes, Ansible, Terraform, Packer, and other similar tools that will help you to build a base. As you advance, the book covers the core elements of cloud integration (AWS ECS, GKE, and other CaaS services), continuous integration, and continuous delivery (GitHub actions, Jenkins, and Spinnaker) to help you understand the essence of container management and delivery. The later sections of the book will take you through container pipeline security and GitOps (Flux CD and Terraform). By the end of this DevOps book, you'll have learned best practices for automating your development lifecycle and making the most of containers, infrastructure automation, and CaaS, and be ready to develop applications using modern tools and techniques.
Table of Contents (19 chapters)
1
Section 1: Container Fundamentals and Best Practices
7
Section 2: Delivering Containers
15
Section 3: Modern DevOps with GitOps

Amazon ECS with EC2 and Fargate

Amazon Elastic Container Service (ECS) is a container orchestration platform that AWS offers. It is simple to use and manage, uses Docker behind the scenes, and can deploy your workloads to Amazon EC2, a virtual machine-based solution, or Amazon Fargate, a serverless solution.

It is a highly scalable solution that helps you host your containers in minutes. It makes it easy to host, run, stop, and start your containers. Similar to how Kubernetes offers pods, ECS offers tasks, which help you run your container workloads. A task can contain one or more containers, grouped according to a logical relationship. You can also group one or more tasks into services. Services are similar to Kubernetes controllers, which manage tasks and can ensure that the required number of replicas of your tasks are running in the right places at a time. ECS uses simple API calls to provide many functionalities, such as creating, updating, reading, and deleting tasks and services...