Merge pull request antonbabenko#3 from antonbabenko/feature/asg

antonbabenko · antonbabenko · commit f6a707754ede · 2015-12-14T19:19:55.000+01:00
Feature: feature/asg
diff --git a/projects/heavy/asg_policy.tf b/projects/heavy/asg_policy.tf
@@ -0,0 +1,48 @@
+# Don't forget to remove desired_capacity on asg
+resource "aws_autoscaling_policy" "heavy-out" {
+  name = "heavy-out-asg-policy"
+  scaling_adjustment = 1
+  adjustment_type = "ChangeInCapacity"
+  cooldown = 10
+  autoscaling_group_name = "${aws_autoscaling_group.heavy.name}"
+}
+
+resource "aws_autoscaling_policy" "heavy-in" {
+  name = "heavy-in-asg-policy"
+  scaling_adjustment = -1
+  adjustment_type = "ChangeInCapacity"
+  cooldown = 10
+  autoscaling_group_name = "${aws_autoscaling_group.heavy.name}"
+}
+
+resource "aws_cloudwatch_metric_alarm" "heavy_asg_cpu_usage_is_very_high" {
+  alarm_name = "heavy-asg-cpu-usage-is-very-high"
+  comparison_operator = "GreaterThanOrEqualToThreshold"
+  evaluation_periods = 1
+  metric_name = "CPUUtilization"
+  namespace = "AWS/EC2"
+  period = 60
+  statistic = "Average"
+  threshold = 80
+  dimensions {
+    AutoScalingGroupName = "${aws_autoscaling_group.heavy.name}"
+  }
+  alarm_description = "This metric monitors EC2 CPU utilization"
+  alarm_actions = ["${aws_autoscaling_policy.heavy-out.arn}"]
+}
+
+resource "aws_cloudwatch_metric_alarm" "heavy_asg_cpu_usage_is_very_low" {
+  alarm_name = "heavy-asg-cpu-usage-is-very-low"
+  comparison_operator = "LessThanOrEqualToThreshold"
+  evaluation_periods = 1
+  metric_name = "CPUUtilization"
+  namespace = "AWS/EC2"
+  period = 60
+  statistic = "Average"
+  threshold = 40
+  dimensions {
+    AutoScalingGroupName = "${aws_autoscaling_group.heavy.name}"
+  }
+  alarm_description = "This metric monitors EC2 CPU utilization"
+  alarm_actions = ["${aws_autoscaling_policy.heavy-in.arn}"]
+}
diff --git a/projects/heavy/web.tf b/projects/heavy/web.tf
@@ -147,7 +147,7 @@ resource "aws_elb" "heavy" {
   health_check {
     healthy_threshold   = 2
     unhealthy_threshold = 2
-    interval            = 15
+    interval            = 7
     timeout             = 5
     target              = "HTTP:80/"
   }

Original file line number	Diff line number	Diff line change
`@@ -147,7 +147,7 @@ resource "aws_elb" "heavy" {`
`147`	`147`	`health_check {`
`148`	`148`	`healthy_threshold = 2`
`149`	`149`	`unhealthy_threshold = 2`
`150`		`- interval = 15`
	`150`	`+ interval = 7`
`151`	`151`	`timeout = 5`
`152`	`152`	`target = "HTTP:80/"`
`153`	`153`	`}`