aws-cloud

AWS Cloud Infrastructure Skill

Quick reference for AWS infrastructure automation with Terraform, security-first design, and production-ready patterns.

Core Services Quick Reference

Compute

ECS/Fargate (Managed Containers):

resource "aws_ecs_cluster" "app" {
  name = "app-cluster"

  setting {
    name  = "containerInsights"
    value = "enabled"
  }
}

resource "aws_ecs_task_definition" "app" {
  family                   = "app"
  network_mode             = "awsvpc"
  requires_compatibilities = ["FARGATE"]
  cpu                      = "256"
  memory                   = "512"
  execution_role_arn       = aws_iam_role.ecs_execution.arn
  task_role_arn           = aws_iam_role.ecs_task.arn

  container_definitions = jsonencode([{
    name  = "app"
    image = "123456789012.dkr.ecr.us-east-1.amazonaws.com/app:latest"
    portMappings = [{
      containerPort = 8080
      protocol      = "tcp"
    }]
    logConfiguration = {
      logDriver = "awslogs"
      options = {
        "awslogs-group"         = "/ecs/app"
        "awslogs-region"        = "us-east-1"
        "awslogs-stream-prefix" = "app"
      }
    }
  }])
}

EKS (Managed Kubernetes):

resource "aws_eks_cluster" "main" {
  name     = "production-cluster"
  role_arn = aws_iam_role.eks_cluster.arn
  version  = "1.28"

  vpc_config {
    subnet_ids              = aws_subnet.private[*].id
    endpoint_private_access = true
    endpoint_public_access  = false
    security_group_ids      = [aws_security_group.eks_cluster.id]
  }

  encryption_config {
    provider {
      key_arn = aws_kms_key.eks.arn
    }
    resources = ["secrets"]
  }
}

resource "aws_eks_node_group" "main" {
  cluster_name    = aws_eks_cluster.main.name
  node_group_name = "main-node-group"
  node_role_arn   = aws_iam_role.eks_nodes.arn
  subnet_ids      = aws_subnet.private[*].id

  scaling_config {
    desired_size = 3
    max_size     = 10
    min_size     = 2
  }

  instance_types = ["t3.large"]

  labels = {
    Environment = "production"
  }
}