Ecs

AWS ECS container orchestration for running Docker containers. Use when deploying containerized applications, configuring task definitions, setting up services, managing clusters, or troubleshooting container issues.

DevOps & Cloud|v1|Updated 7/2/2026|GitHub source

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# AWS ECS

Amazon Elastic Container Service (ECS) is a fully managed container orchestration service. Run containers on AWS Fargate (serverless) or EC2 instances.

## Table of Contents

- [Core Concepts](#core-concepts)
- [Common Patterns](#common-patterns)
- [CLI Reference](#cli-reference)
- [Best Practices](#best-practices)
- [Troubleshooting](#troubleshooting)
- [References](#references)

## Core Concepts

### Cluster

Logical grouping of tasks or services. Can contain Fargate tasks, EC2 instances, or both.

### Task Definition

Blueprint for your application. Defines containers, resources, networking, and IAM roles.

### Task

Running instance of a task definition. Can run standalone or as part of a service.

### Service

Maintains desired count of tasks. Handles deployments, load balancing, and auto scaling.

### Launch Types

| Type | Description | Use Case |
|------|-------------|----------|
| **Fargate** | Serverless, pay per task | Most workloads |
| **EC2** | Self-managed instances | GPU, Windows, specific requirements |

## Common Patterns

### Create a Fargate Cluster

**AWS CLI:**

```bash
# Create cluster
aws ecs create-cluster --cluster-name my-cluster

# With capacity providers
aws ecs create-cluster \

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#docker#containerizationaws