Alarms and dashboards

tf/cloudwatch.tf

@@ -1,3 +1,23 @@
+resource "aws_cloudwatch_metric_alarm" "server_cpu" {
+  count = local.ami_available ? 1 : 0
+
+  alarm_name = "riju-server-cpu-high"
+  comparison_operator = "GreaterThanOrEqualToThreshold"
+  evaluation_periods = "5"
+  metric_name = "CPUUtilization"
+  namespace = "AWS/EC2"
+  period = "60"
+  statistic = "Maximum"
+  threshold = "80"
+  alarm_description = "CPU usage on Riju server is above 80%"
+  ok_actions = [aws_sns_topic.riju.arn]
+  alarm_actions = [aws_sns_topic.riju.arn]
+  insufficient_data_actions = [aws_sns_topic.riju.arn]
+  dimensions = {
+    AutoScalingGroupName = aws_autoscaling_group.server[count.index].name
+  }
+}
+
 resource "aws_cloudwatch_metric_alarm" "server_memory" {
   count = local.ami_available ? 1 : 0
 
@@ -59,3 +79,86 @@ resource "aws_cloudwatch_metric_alarm" "server_root_volume_disk_space" {
     path = "/"
   }
 }
+
+resource "aws_cloudwatch_dashboard" "riju" {
+  count = local.ami_available ? 1 : 0
+
+  dashboard_name = "Riju"
+  dashboard_body = <<EOF
+{
+    "widgets": [
+        {
+            "type": "metric",
+            "x": 0,
+            "y": 0,
+            "width": 6,
+            "height": 6,
+            "properties": {
+                "title": "CPU",
+                "annotations": {
+                    "alarms": [
+                        "${aws_cloudwatch_metric_alarm.server_cpu[count.index].arn}"
+                    ]
+                },
+                "view": "timeSeries",
+                "stacked": false
+            }
+        },
+        {
+            "type": "metric",
+            "x": 12,
+            "y": 0,
+            "width": 6,
+            "height": 6,
+            "properties": {
+                "title": "Root volume disk space",
+                "annotations": {
+                    "alarms": [
+                        "${aws_cloudwatch_metric_alarm.server_root_volume_disk_space[count.index].arn}"
+                    ]
+                },
+                "view": "timeSeries",
+                "stacked": false,
+                "type": "chart"
+            }
+        },
+        {
+            "type": "metric",
+            "x": 18,
+            "y": 0,
+            "width": 6,
+            "height": 6,
+            "properties": {
+                "title": "Data volume disk space",
+                "annotations": {
+                    "alarms": [
+                        "${aws_cloudwatch_metric_alarm.server_data_volume_disk_space[count.index].arn}"
+                    ]
+                },
+                "view": "timeSeries",
+                "stacked": false,
+                "type": "chart"
+            }
+        },
+        {
+            "type": "metric",
+            "x": 6,
+            "y": 0,
+            "width": 6,
+            "height": 6,
+            "properties": {
+                "title": "Memory",
+                "annotations": {
+                    "alarms": [
+                        "${aws_cloudwatch_metric_alarm.server_memory[count.index].arn}"
+                    ]
+                },
+                "view": "timeSeries",
+                "stacked": false,
+                "type": "chart"
+            }
+        }
+    ]
+}
+EOF
+}