Fargate

ELI5 — The Vibe Check

Fargate is AWS's 'serverless containers' magic. You run Docker containers without ever seeing or touching an EC2 server. AWS figures out where to run them. You just say 'run this container with 1 CPU and 2GB RAM' and it happens. No more EC2 instance babysitting.

Real Talk

AWS Fargate is a serverless compute engine for containers that works with ECS and EKS. It eliminates the need to manage EC2 instances — you define CPU and memory requirements per task and Fargate provisions, scales, and patches the underlying infrastructure. Billed per vCPU and GB of RAM per second.

Show Me The Code

# ECS Fargate task definition snippet
{
  "requiresCompatibilities": ["FARGATE"],
  "networkMode": "awsvpc",
  "cpu": "256",
  "memory": "512",
  "containerDefinitions": [{
    "name": "my-app",
    "image": "123456789.dkr.ecr.us-east-1.amazonaws.com/my-app:latest",
    "portMappings": [{ "containerPort": 3000 }]
  }]
}

When You'll Hear This

"We switched to Fargate and stopped maintaining EC2 instances entirely." / "Fargate costs a bit more than EC2 but the ops savings are worth it."