AWS ECS — Container Service Guide

AWS ECS provides container orchestration without managing Kubernetes complexity.

AWS ECS — Container Service Guide
Task Definitions
Creating Services
FAQ

Task Definitions

{
  "family": "my-app",
  "networkMode": "awsvpc",
  "requiresCompatibilities": ["FARGATE"],
  "cpu": "256",
  "memory": "512",
  "containerDefinitions": [
    {
      "name": "my-container",
      "image": "my-account.dkr.ecr.us-east-1.amazonaws.com/my-app:latest",
      "portMappings": [
        {
          "containerPort": 3000,
          "hostPort": 3000,
          "protocol": "tcp"
        }
      ],
      "essential": true
    }
  ]
}

Creating Services

# Register task definition
aws ecs register-task-definition --cli-input-json file://task.json

# Create service
aws ecs create-service \
  --cluster my-cluster \
  --service-name my-service \
  --task-definition my-app \
  --desired-count 2 \
  --launch-type FARGATE

FAQ

Q: What's the difference between ECS and Kubernetes? A: ECS is simpler, AWS-native; Kubernetes is more portable and feature-rich.