Deploying Applications with AWS Fargate - AWS ECS Tutorial

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AWS Fargate is a serverless compute engine for containers that enables you to deploy and run containers without managing the underlying infrastructure. Amazon Elastic Container Service (ECS) integrates with Fargate, making it easy to deploy and scale containerized applications. In this tutorial, you will learn how to deploy applications using AWS Fargate in Amazon ECS.

Steps to Deploy Applications with AWS Fargate

Follow these steps to deploy applications with AWS Fargate in Amazon ECS:

  1. Create a Task Definition: Define the specifications for your containerized application, such as the container image, CPU and memory requirements, and networking configuration. Use the AWS Management Console, AWS CLI, or AWS SDKs to create a task definition.
  2. Create a Cluster: Create an ECS cluster that will host your application. Choose the Fargate launch type when creating the cluster to leverage the serverless capabilities of Fargate.
  3. Create a Service: Define a service to manage and run your tasks within the cluster. Specify the task definition to use, the desired number of tasks to run, and any additional configurations such as load balancing.
  4. Configure Security: Set up security groups and network access control lists (NACLs) to control inbound and outbound traffic to your containers. Define IAM roles to manage permissions for your tasks and services.
  5. Deploy and Scale: Deploy your service and monitor its performance. You can adjust the desired number of tasks or configure service auto scaling to handle changing traffic patterns.

Example: Creating a Task Definition with AWS CLI

Here's an example of creating a task definition using the AWS CLI:

    aws ecs register-task-definition \
      --family my-task-definition \
      --container-definitions '[
          "name": "my-container",
          "image": "my-container-image",
          "cpu": 256,
          "memory": 512

This command registers a task definition named "my-task-definition" with a single container named "my-container" and its corresponding properties.

Common Mistakes

  • Not properly defining the resource requirements of your containers, leading to insufficient CPU or memory allocation.
  • Overlooking security configurations, such as not properly configuring security groups or IAM roles.
  • Not monitoring the performance and scaling of your application, which can result in resource inefficiency or inadequate capacity.
  • Choosing the wrong launch type, such as selecting EC2 instead of Fargate or vice versa, based on your application requirements.
  • Not considering cost optimization strategies, such as right-sizing containers or leveraging spot instances for cost savings.

Frequently Asked Questions

  1. What is the difference between AWS Fargate and EC2 launch types in ECS?

    AWS Fargate is a serverless launch type in ECS that abstracts the underlying infrastructure, allowing you to focus solely on deploying and running containers. The EC2 launch type, on the other hand, requires managing and scaling EC2 instances to run containers.

  2. Can I use load balancers with AWS Fargate?

    Yes, AWS Fargate integrates seamlessly with Elastic Load Balancing (ELB), allowing you to distribute traffic across multiple containers in your Fargate tasks.

  3. How does AWS Fargate handle scaling?

    AWS Fargate automatically scales the number of tasks based on the desired count you specify in the service definition. It ensures that the desired number of tasks is always running, adjusting capacity as needed to handle the load.

  4. Can I use AWS Fargate with other AWS services?

    Yes, AWS Fargate integrates with various AWS services, such as Amazon RDS for database hosting, Amazon S3 for object storage, and Amazon CloudWatch for monitoring and logging.

  5. Is AWS Fargate more expensive than the EC2 launch type?

    The cost of using AWS Fargate depends on factors such as the number of tasks, the CPU and memory requirements, and the region. In some cases, Fargate may be more expensive than the EC2 launch type, but it offers the benefit of serverless management, eliminating the need for EC2 instance management.


AWS Fargate provides a convenient way to deploy containerized applications without the need to manage EC2 instances. In this tutorial, you learned the steps involved in deploying applications with AWS Fargate in Amazon ECS. You discovered how to create a task definition, cluster, and service, as well as common mistakes to avoid. Additionally, you found answers to FAQs related to deploying applications with AWS Fargate. Now you can leverage the power of serverless containers and easily deploy and scale your applications on AWS Fargate.