Terraform:通过弹性豆茎生成的弹性负载均衡添加cloudwatch告警

resource "aws_elasticloadbalancingv2_load_balancer" "example" {
  name               = "example-lb"
  internal           = false
  load_balancer_type = "application"

  subnet_mapping {
    subnet_id     = "subnet-12345678"
    allocation_id = "eipalloc-12345678"
  }
}

resource "aws_elasticloadbalancingv2_listener" "example" {
  load_balancer_arn = aws_elasticloadbalancingv2_load_balancer.example.arn
  port              = 80
  protocol          = "HTTP"

  default_action {
    type             = "forward"
    target_group_arn = aws_elasticloadbalancingv2_target_group.example.arn
  }
}

resource "aws_elasticloadbalancingv2_target_group" "example" {
  name     = "example-tg"
  port     = 80
  protocol = "HTTP"
  vpc_id   = "vpc-12345678"
}

terraform init
terraform apply

resource "aws_cloudwatch_metric_alarm" "example" {
  alarm_name          = "example-alarm"
  comparison_operator = "GreaterThanOrEqualToThreshold"
  evaluation_periods  = 1
  metric_name         = "RequestCount"
  namespace           = "AWS/ApplicationELB"
  period              = 60
  statistic           = "SampleCount"
  threshold           = 100
  alarm_description   = "This metric monitors the request count on the load balancer."
  alarm_actions       = [aws_sns_topic.example.arn]
}

resource "aws_sns_topic" "example" {
  name = "example-topic"
}

terraform apply