AWS ECS — Container Orchestration

Elastic Container Service. Task definitions, services, Fargate vs EC2, service discovery.

ECS vs EKS

• ECS — AWS-native, jednodušší, tight AWS integrace
• EKS — managed Kubernetes, portabilní, větší ekosystém
• Fargate — serverless compute, žádná správa nodů

Task Definition

{
  "family": "my-api",
  "networkMode": "awsvpc",
  "requiresCompatibilities": ["FARGATE"],
  "cpu": "512", "memory": "1024",
  "containerDefinitions": [{
    "name": "api",
    "image": "123456789.dkr.ecr.eu-west-1.amazonaws.com/my-api:latest",
    "portMappings": [{"containerPort": 8080}],
    "logConfiguration": {
      "logDriver": "awslogs",
      "options": {"awslogs-group":"/ecs/my-api","awslogs-region":"eu-west-1"}
    }
  }]
}

Service Discovery

ECS Service Connect nebo Cloud Map pro service-to-service komunikaci.

Shrnutí

ECS + Fargate je nejjednodušší cesta ke kontejnerům na AWS. Pro K8s ekosystém volte EKS.