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 AWS ECS

ECS is a container orchestration engine that is provided by AWS. We can use ECS in order to deploy, manage, and scale our container applications. Since it is provided by AWS, it is integrated with the rest of the AWS platform. By deploying an application on ECS it will use an elastic load balancer to expose an application; it will use EC2 instances to run the application, and the application will reside on an AWS Virtual Private Cloud (VPC) and its subnets. The logs of the applications will also be accessible through CloudWatch.

ECS comes with the option of AWS Fargate. AWS is a serverless compute option that enables you to deploy your Docker workloads without needing to manage EC2 instances and autoscaling groups. If the application’s workloads are small, require low overhead, and have non-frequent bursts of requests and usage, then Fargate is a solution that our application can benefit from. We will choose Fargate for our application, since our application...