demo-15

2026-06-29 11:02:26 +03:00 · 2016-10-20 10:30:13 +00:00
parent 584632128f
commit b099fde213
7 changed files with 271 additions and 0 deletions
@@ -0,0 +1,88 @@
+# scale up alarm
+
+resource "aws_autoscaling_policy" "example-cpu-policy" {
+  name                   = "example-cpu-policy"
+  autoscaling_group_name = "${aws_autoscaling_group.example-autoscaling.name}"
+  adjustment_type        = "ChangeInCapacity"
+  scaling_adjustment     = "1"
+  cooldown               = "300"
+  policy_type            = "SimpleScaling"
+}
+
+resource "aws_sns_topic" "example-cpu-sns" {
+  name         = "sg-cpu-sns"
+  display_name = "example ASG SNS topic"
+}
+
+resource "aws_autoscaling_notification" "example-notify" {
+  group_names = ["${aws_autoscaling_group.example-autoscaling.name}"]
+  topic_arn     = "${aws_sns_topic.example-cpu-sns.arn}"
+  notifications  = [
+    "autoscaling:EC2_INSTANCE_LAUNCH", 
+    "autoscaling:EC2_INSTANCE_TERMINATE",
+    "autoscaling:EC2_INSTANCE_LAUNCH_ERROR"
+  ]
+}
+
+resource "aws_cloudwatch_metric_alarm" "example-cpu-alarm" {
+  alarm_name          = "example-cpu-alarm"
+  alarm_description   = "example-cpu-alarm"
+  comparison_operator = "GreaterThanOrEqualToThreshold"
+  evaluation_periods  = "2"
+  metric_name         = "CPUUtilization"
+  namespace           = "AWS/EC2"
+  period              = "120"
+  statistic           = "Average"
+  threshold           = "30"
+
+  dimensions = {
+    "AutoScalingGroupName" = "${aws_autoscaling_group.example-autoscaling.name}"
+  }
+
+  actions_enabled = true
+  alarm_actions   = ["${aws_autoscaling_policy.example-cpu-policy.arn}"]
+}
+
+# scale down alarm
+resource "aws_autoscaling_policy" "example-cpu-policy-scaledown" {
+  name                   = "example-cpu-policy-scaledown"
+  autoscaling_group_name = "${aws_autoscaling_group.example-autoscaling.name}"
+  adjustment_type        = "ChangeInCapacity"
+  scaling_adjustment     = "-1"
+  cooldown               = "300"
+  policy_type            = "SimpleScaling"
+}
+
+resource "aws_sns_topic" "example-cpu-sns-scaledown" {
+  name         = "sg-cpu-sns-scaledown"
+  display_name = "example ASG SNS topic scaledown"
+}
+
+resource "aws_autoscaling_notification" "example-notify-scaledown" {
+  group_names = ["${aws_autoscaling_group.example-autoscaling.name}"]
+  topic_arn     = "${aws_sns_topic.example-cpu-sns-scaledown.arn}"
+  notifications  = [
+    "autoscaling:EC2_INSTANCE_LAUNCH", 
+    "autoscaling:EC2_INSTANCE_TERMINATE",
+    "autoscaling:EC2_INSTANCE_LAUNCH_ERROR"
+  ]
+}
+
+resource "aws_cloudwatch_metric_alarm" "example-cpu-alarm-scaledown" {
+  alarm_name          = "example-cpu-alarm-scaledown"
+  alarm_description   = "example-cpu-alarm-scaledown"
+  comparison_operator = "LessThanOrEqualToThreshold"
+  evaluation_periods  = "2"
+  metric_name         = "CPUUtilization"
+  namespace           = "AWS/EC2"
+  period              = "120"
+  statistic           = "Average"
+  threshold           = "5"
+
+  dimensions = {
+    "AutoScalingGroupName" = "${aws_autoscaling_group.example-autoscaling.name}"
+  }
+
+  actions_enabled = true
+  alarm_actions   = ["${aws_autoscaling_policy.example-cpu-policy-scaledown.arn}"]
+}