Book Image

A Developer's Essential Guide to Docker Compose

By : Emmanouil Gkatziouras
Book Image

A Developer's Essential Guide to Docker Compose

By: Emmanouil Gkatziouras

Overview of this book

Software development is becoming increasingly complex due to the various software components used. Applications need to be packaged with software components to facilitate their operations, making it complicated to run them. With Docker Compose, a single command can set up your application and the needed dependencies. This book starts with an overview of Docker Compose and its usage and then shows how to create an application. You will also get to grips with the fundamentals of Docker volumes and network, along with Compose commands, their purpose, and use cases. Next, you will set up databases for daily usage using Compose and, leveraging Docker networking, you will establish communication between microservices. You will also run entire stacks locally on Compose, simulate production environments, and enhance CI/CD jobs using Docker Compose. Later chapters will show you how to benefit from Docker Compose for production deployments, provision infrastructure on public clouds such as AWS and Azure, and wrap up with Compose deployments on said infrastructure. By the end of this book, you will have learned how to effectively utilize Docker Compose for day-to-day development.
Table of Contents (19 chapters)
1
Part 1: Docker Compose 101
6
Part 2: Daily Development with Docker Compose
12
Part 3: Deployment with Docker Compose

Introduction to Kubernetes

Kubernetes is a container orchestration engine. By using Kubernetes, we can automate the deployment, scaling, and management of container-based applications. Since it is open source, a Kubernetes cluster can be set up from scratch in your data center, whether it is an on-premise data center or in the cloud. Also, there is the option of using a managed Kubernetes cluster. Due to its growing popularity, every major cloud provider, such as AWS, Google Cloud, and Azure, has a managed Kubernetes offering.

When we deploy an application on Kubernetes, we deploy the application to an environment that has various capabilities that assist in provisioning, scaling, and monitoring that application.

Kubernetes provides a distributed and robust way to store application secrets and configurations. It offers a health check and readiness system for a deployed application. It can scale the application that’s been provisioned as well as load balance the traffic...