Book Image

Amazon Fargate Quick Start Guide

By : Deepak Vohra
Book Image

Amazon Fargate Quick Start Guide

By: Deepak Vohra

Overview of this book

Amazon Fargate is new launch type for the Amazon Elastic Container Service (ECS). ECS is an AWS service for Docker container orchestration. Docker is the de facto containerization framework and has revolutionized packaging and deployment of software. The introduction of Fargate has made the ECS platform serverless. The book takes you through how Amazon Fargate runs ECS services composed of tasks and Docker containers and exposes the containers to the user. Fargate has simplified the ECS platform. We will learn how Fargate creates an Elastic Network Interface (ENI) for each task and how auto scaling can be enabled for ECS tasks. You will also learn about using an IAM policy to download Docker images and send logs to CloudWatch. Finally, by the end of this book, you will have learned about how to use ECS CLI to create an ECS cluster and deploy tasks with Docker Compose.
Table of Contents (14 chapters)
Title Page
Copyright and Credits
Packt Upsell

Configuring a Task definition

The default Task definition settings are listed. Some of the Task definition settings are modifiable, while others are not. Network mode is not modifiable, and must be awsvpc. Compatibilities is also not modifiable, and must be set to FARGATE. Modifying the task definition is optional:

  1. To modify a task definition, click on Task definition Edit, as shown in the following screenshot:
  1. In the Configure task definition dialog, set the Task definition name (mysql-task-definition) as shown in the following screenshot.
  2. Network mode is not modifiable for the Fargate launch type and must be awsvpc.
  3. Select Task execution role as ecsTaskExecutionRole. The ecsTaskExecutionRole grants permissions to make calls to CloudWatch to send container logs.
  4. Compatibilities is preset to FARGATE, and is not modifiable either. 
  5. Set the Task size, which allocates the selected task memory and CPU to the task. Only specific combinations of Task memory and Task CPU may be selected. 
  6. Click on Save...