terraform-lab/aws_fargate/ecs.tf

resource "aws_ecs_cluster" "my_cluster" {
  name = "${var.project}_cluster"
}

resource "aws_ecs_service" "api_ecs" {
  name            = var.api_name
  task_definition = aws_ecs_task_definition.api_task.arn
  cluster         = aws_ecs_cluster.my_cluster.id
  launch_type     = "FARGATE"
  load_balancer {
    target_group_arn = aws_lb_target_group.api_lb_target.arn
    container_name   = var.api_name
    container_port   = "${var.service_port}"
  }
  desired_count = 1
  network_configuration {
    assign_public_ip = false
    security_groups = [
      aws_security_group.egress_all.id,
      aws_security_group.ingress_api.id,
    ]
    subnets = [for s in aws_subnet.private_subnet : s.id]
  }
}

resource "aws_ecs_task_definition" "api_task" {
  family                   = var.api_name
  execution_role_arn       = aws_iam_role.api_exec_role.arn
  cpu                      = 256
  memory                   = 512
  requires_compatibilities = ["FARGATE"]
  network_mode             = "awsvpc"

  container_definitions = jsonencode([{
    name : "${var.api_name}",
    image : "${var.container_image}",
    portMappings : [
      {
        containerPort : var.service_port
      }
    ],
    logConfiguration : {
      logDriver : "awslogs",
      options : {
        awslogs-region : "${var.region}",
        awslogs-group : "/ecs/${var.api_name}",
        awslogs-stream-prefix : "ecs"
      }
    }
  }])
}

resource "aws_cloudwatch_log_group" "log_group" {
  name = "/ecs/${var.api_name}"
}