ECS Fargate — Production Patterns

Fargate autoscaling, EFS volumes, blue-green deploy a pricing.

Service Autoscaling

resource "aws_appautoscaling_policy" "cpu" {
  name               = "cpu-scaling"
  policy_type        = "TargetTrackingScaling"
  target_tracking_scaling_policy_configuration {
    target_value = 70.0
    predefined_metric_specification {
      predefined_metric_type = "ECSServiceAverageCPUUtilization"
    }
  }
}

EFS pro shared storage

EFS volume v task definition pro shared state mezi kontejnery. Transit encryption + IAM auth.

Blue-Green s CodeDeploy

• Canary (10 % → 100 %), Linear, All-at-once
• Auto rollback při alarm trigger
• Pre/post-traffic Lambda hooks

Shrnutí

Fargate pro production = autoscaling + EFS + CodeDeploy. Vyšší cost, ale zero node management.