Amazon web services 跨微服务环境模块化地构建IaC

我正试图重构我的IaC地形设置，以减少代码重复，更快地进行更改。我正在开发一个无服务器的微服务应用程序，因此，例如，我正在运行几个aws ecs autoscaling和aws ecs实例。我有开发和生产环境，在每个环境中都有一个模块文件夹，其中定义了每个微服务模块。请参阅模拟文件夹结构的图片

如您所见，有许多重复的文件夹。在dev和prod环境的main.tf中，调用每个模块并分配变量

例如：

ecs-autoscaling-microservice-A main.tf

resource "aws_appautoscaling_target" "dev_ecs_autoscaling_microservice_A_target" {
  max_capacity = 2
  min_capacity = 1
  resource_id = "service/${var.ecs_cluster.name}/${var.ecs_service.name}"
  scalable_dimension = "ecs:service:DesiredCount"
  service_namespace = "ecs"
}

resource "aws_appautoscaling_policy" "dev_ecs_autoscaling_microservice_A_memory" {
  name               = "dev_ecs_autoscaling_microservice_A_memory"
  policy_type        = "TargetTrackingScaling"
  resource_id        = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.resource_id
  scalable_dimension = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.scalable_dimension
  service_namespace  = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.service_namespace

  target_tracking_scaling_policy_configuration {
    predefined_metric_specification {
      predefined_metric_type = "ECSServiceAverageMemoryUtilization"
    }
    target_value       = 80
  }
}

resource "aws_appautoscaling_policy" "dev_ecs_autoscaling_microservice_A_cpu" {
  name = "dev_ecs_autoscaling_microservice_A_cpu"
  policy_type = "TargetTrackingScaling"
  resource_id = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.resource_id
  scalable_dimension = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.scalable_dimension
  service_namespace = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.service_namespace

  target_tracking_scaling_policy_configuration {
    predefined_metric_specification {
      predefined_metric_type = "ECSServiceAverageCPUUtilization"
    }
    target_value = 60
  }
}

module "ecs_autoscaling_microservice_A" {
  source      = "./modules/ecs-autoscaling-microservice-A"
  ecs_cluster = module.ecs_autoscaling_microservice_A.ecs_cluster_A
  ecs_service = module.ecs_autoscaling_microservice_A.ecs_service_A
}

开发main.tf

resource "aws_appautoscaling_target" "dev_ecs_autoscaling_microservice_A_target" {
  max_capacity = 2
  min_capacity = 1
  resource_id = "service/${var.ecs_cluster.name}/${var.ecs_service.name}"
  scalable_dimension = "ecs:service:DesiredCount"
  service_namespace = "ecs"
}

resource "aws_appautoscaling_policy" "dev_ecs_autoscaling_microservice_A_memory" {
  name               = "dev_ecs_autoscaling_microservice_A_memory"
  policy_type        = "TargetTrackingScaling"
  resource_id        = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.resource_id
  scalable_dimension = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.scalable_dimension
  service_namespace  = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.service_namespace

  target_tracking_scaling_policy_configuration {
    predefined_metric_specification {
      predefined_metric_type = "ECSServiceAverageMemoryUtilization"
    }
    target_value       = 80
  }
}

resource "aws_appautoscaling_policy" "dev_ecs_autoscaling_microservice_A_cpu" {
  name = "dev_ecs_autoscaling_microservice_A_cpu"
  policy_type = "TargetTrackingScaling"
  resource_id = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.resource_id
  scalable_dimension = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.scalable_dimension
  service_namespace = aws_appautoscaling_target.dev_ecs_autoscaling_microservice_A_target.service_namespace

  target_tracking_scaling_policy_configuration {
    predefined_metric_specification {
      predefined_metric_type = "ECSServiceAverageCPUUtilization"
    }
    target_value = 60
  }
}

module "ecs_autoscaling_microservice_A" {
  source      = "./modules/ecs-autoscaling-microservice-A"
  ecs_cluster = module.ecs_autoscaling_microservice_A.ecs_cluster_A
  ecs_service = module.ecs_autoscaling_microservice_A.ecs_service_A
}

我的问题是移除所有模块的最佳方式是什么。因此，我不需要为prod和dev环境中的每个微服务都配备一个ecs模块，而只需要为ecs配备一个模块，可以在任何环境中的任何微服务中重复使用。有关所需的文件夹结构，请参见图。这是可能的还是我在浪费时间？我在考虑使用某种for_-each，其中每个微服务都是用自己的映射变量预先定义的。但是我想要一些指导。提前谢谢

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我建议您阅读Yevgeniy Brikman关于Terraform的一系列优秀博文，这些博文澄清了我对Terraform的理解：

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这篇文章似乎触及了这个确切的问题：

您必须对模块进行参数化。您还可以将tf用于开发和产品环境。