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If you're stepping into the world of AWS Fargate and ECS (Elastic Container Service), here's a quick and easy guide to understand the basic components. This will help you get started with running containers in a serverless way!
? 1. Container Definition
A container definition includes:
A task definition is like a blueprint for your application.
3. Service
A service helps you:
A task is the running instance of a task definition.
Using Fargate with ECS lets you focus on your app while AWS takes care of the heavy lifting. No server management, no EC2 setup — just define your containers and go!
? 1. Container Definition
A container definition includes:
- The container image (e.g. from Docker Hub or ECR)
- Container-level settings such as: - Ports, Registry details, and Environment variables
- ? These settings apply to individual containers.
A task definition is like a blueprint for your application.
- It describes one or more containers using configuration attributes.
- Most settings are defined per container, not at the task level.
- If multiple containers are used together, they’re combined into one task.
3. ServiceA service helps you:
- Run and maintain a specific number of task instances (called desired count).
- Automatically restart tasks if they stop.
- Ensure high availability in your ECS cluster.
- A Fargate cluster is fully managed by AWS.
- No need to manage EC2 instances or underlying infrastructure.
- You just define your container requirements, and AWS handles the rest.
A task is the running instance of a task definition.
- A task is the running version of a task definition.
- You can run tasks directly or through a service.
- Each task in Fargate runs in its own isolated environment: - It doesn’t share CPU, memory, or network with other tasks.
Using Fargate with ECS lets you focus on your app while AWS takes care of the heavy lifting. No server management, no EC2 setup — just define your containers and go!