# Amazon CloudWatch 템플릿 코드 조각
CloudFormation에서 Amazon CloudWatch 리소스를 설명하는 데 도움이 되는 샘플 템플릿 스니펫을 사용합니다. 자세한 내용은 [Amazon CloudWatch 리소스 유형](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/AWS_CloudWatch.html)을 참조하세요.
**Topics**
+ [결제 경보](#cloudwatch-sample-billing-alarm)
+ [CPU 사용률 경보](#cloudwatch-sample-cpu-utilization-alarm)
+ [Amazon Elastic Compute Cloud 인스턴스 복구](#cloudwatch-sample-recover-instance)
+ [기본 대시보드 생성](#cloudwatch-sample-dashboard-basic)
+ [단계별 위젯이 있는 대시보드 생성](#cloudwatch-sample-dashboard-sidebyside)
## 결제 경보
다음 샘플에서 Amazon CloudWatch는 AWS 계정에 대한 요금이 경보 임계값을 초과할 경우 이메일 알림을 전송합니다. 사용량 알림을 수신하려면 결제 알림을 활성화하십시오. 자세한 내용은 **Amazon CloudWatch 사용 설명서의 [청구 경보를 생성하여 예상 AWS 요금 모니터링](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/monitor_estimated_charges_with_cloudwatch.html)을 참조하세요.
### JSON
```
"SpendingAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmDescription": { "Fn::Join": ["", [
"Alarm if AWS spending is over $",
{ "Ref": "AlarmThreshold" }
]]},
"Namespace": "AWS/Billing",
"MetricName": "EstimatedCharges",
"Dimensions": [{
"Name": "Currency",
"Value" : "USD"
}],
"Statistic": "Maximum",
"Period": "21600",
"EvaluationPeriods": "1",
"Threshold": { "Ref": "AlarmThreshold" },
"ComparisonOperator": "GreaterThanThreshold",
"AlarmActions": [{
"Ref": "BillingAlarmNotification"
}],
"InsufficientDataActions": [{
"Ref": "BillingAlarmNotification"
}]
}
}
```
### YAML
```
SpendingAlarm:
Type: AWS::CloudWatch::Alarm
Properties:
AlarmDescription:
'Fn::Join':
- ''
- - Alarm if AWS spending is over $
- !Ref: AlarmThreshold
Namespace: AWS/Billing
MetricName: EstimatedCharges
Dimensions:
- Name: Currency
Value: USD
Statistic: Maximum
Period: '21600'
EvaluationPeriods: '1'
Threshold:
!Ref: "AlarmThreshold"
ComparisonOperator: GreaterThanThreshold
AlarmActions:
- !Ref: "BillingAlarmNotification"
InsufficientDataActions:
- !Ref: "BillingAlarmNotification"
```
## CPU 사용률 경보
다음 샘플 코드 조각은 Amazon EC2 인스턴스의 평균 CPU 사용률이 세 평가 기간 동안 60초 이상 90%를 초과할 경우 알림을 전송하는 경보를 생성합니다.
### JSON
```
1. "CPUAlarm" : {
2. "Type" : "AWS::CloudWatch::Alarm",
3. "Properties" : {
4. "AlarmDescription" : "CPU alarm for my instance",
5. "AlarmActions" : [ { "Ref" : "logical name of an AWS::SNS::Topic resource" } ],
6. "MetricName" : "CPUUtilization",
7. "Namespace" : "AWS/EC2",
8. "Statistic" : "Average",
9. "Period" : "60",
10. "EvaluationPeriods" : "3",
11. "Threshold" : "90",
12. "ComparisonOperator" : "GreaterThanThreshold",
13. "Dimensions" : [ {
14. "Name" : "InstanceId",
15. "Value" : { "Ref" : "logical name of an AWS::EC2::Instance resource" }
16. } ]
17. }
18. }
```
### YAML
```
1. CPUAlarm:
2. Type: AWS::CloudWatch::Alarm
3. Properties:
4. AlarmDescription: CPU alarm for my instance
5. AlarmActions:
6. - !Ref: "logical name of an AWS::SNS::Topic resource"
7. MetricName: CPUUtilization
8. Namespace: AWS/EC2
9. Statistic: Average
10. Period: '60'
11. EvaluationPeriods: '3'
12. Threshold: '90'
13. ComparisonOperator: GreaterThanThreshold
14. Dimensions:
15. - Name: InstanceId
16. Value: !Ref: "logical name of an AWS::EC2::Instance resource"
```
## Amazon Elastic Compute Cloud 인스턴스 복구
다음 CloudWatch 경보는 15분 동안 연속해서 상태 확인에 실패할 경우 EC2 인스턴스를 복구합니다. 경보 작업에 대한 자세한 내용은 **Amazon CloudWatch 사용 설명서의 [EC2 인스턴스를 중지, 종료, 재부팅 또는 복구하는 경보 생성](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/UsingAlarmActions.html)을 참조하세요.
### JSON
```
{
"AWSTemplateFormatVersion": "2010-09-09",
"Parameters" : {
"RecoveryInstance" : {
"Description" : "The EC2 instance ID to associate this alarm with.",
"Type" : "AWS::EC2::Instance::Id"
}
},
"Resources": {
"RecoveryTestAlarm": {
"Type": "AWS::CloudWatch::Alarm",
"Properties": {
"AlarmDescription": "Trigger a recovery when instance status check fails for 15 consecutive minutes.",
"Namespace": "AWS/EC2" ,
"MetricName": "StatusCheckFailed_System",
"Statistic": "Minimum",
"Period": "60",
"EvaluationPeriods": "15",
"ComparisonOperator": "GreaterThanThreshold",
"Threshold": "0",
"AlarmActions": [ {"Fn::Join" : ["", ["arn:aws:automate:", { "Ref" : "AWS::Region" }, ":ec2:recover" ]]} ],
"Dimensions": [{"Name": "InstanceId","Value": {"Ref": "RecoveryInstance"}}]
}
}
}
}
```
### YAML
```
AWSTemplateFormatVersion: '2010-09-09'
Parameters:
RecoveryInstance:
Description: The EC2 instance ID to associate this alarm with.
Type: AWS::EC2::Instance::Id
Resources:
RecoveryTestAlarm:
Type: AWS::CloudWatch::Alarm
Properties:
AlarmDescription: Trigger a recovery when instance status check fails for 15
consecutive minutes.
Namespace: AWS/EC2
MetricName: StatusCheckFailed_System
Statistic: Minimum
Period: '60'
EvaluationPeriods: '15'
ComparisonOperator: GreaterThanThreshold
Threshold: '0'
AlarmActions: [ !Sub "arn:aws:automate:${AWS::Region}:ec2:recover" ]
Dimensions:
- Name: InstanceId
Value: !Ref: RecoveryInstance
```
## 기본 대시보드 생성
다음 예에서는 CPU 사용률을 보여주는 측정치 위젯 하나와 메시지를 보여주는 텍스트 위젯 하나가 있는 간단한 CloudWatch 대시보드를 생성합니다.
### JSON
```
{
"BasicDashboard": {
"Type": "AWS::CloudWatch::Dashboard",
"Properties": {
"DashboardName": "Dashboard1",
"DashboardBody": "{\"widgets\":[{\"type\":\"metric\",\"x\":0,\"y\":0,\"width\":12,\"height\":6,\"properties\":{\"metrics\":[[\"AWS/EC2\",\"CPUUtilization\",\"InstanceId\",\"i-012345\"]],\"period\":300,\"stat\":\"Average\",\"region\":\"us-east-1\",\"title\":\"EC2 Instance CPU\"}},{\"type\":\"text\",\"x\":0,\"y\":7,\"width\":3,\"height\":3,\"properties\":{\"markdown\":\"Hello world\"}}]}"
}
}
}
```
### YAML
```
BasicDashboard:
Type: AWS::CloudWatch::Dashboard
Properties:
DashboardName: Dashboard1
DashboardBody: '{"widgets":[{"type":"metric","x":0,"y":0,"width":12,"height":6,"properties":{"metrics":[["AWS/EC2","CPUUtilization","InstanceId","i-012345"]],"period":300,"stat":"Average","region":"us-east-1","title":"EC2 Instance CPU"}},{"type":"text","x":0,"y":7,"width":3,"height":3,"properties":{"markdown":"Hello world"}}]}'
```
## 단계별 위젯이 있는 대시보드 생성
다음 예에서는 단계별로 표시되는 측정치 위젯 두 개가 있는 대시보드를 생성합니다.
### JSON
```
{
"DashboardSideBySide": {
"Type": "AWS::CloudWatch::Dashboard",
"Properties": {
"DashboardName": "Dashboard1",
"DashboardBody": "{\"widgets\":[{\"type\":\"metric\",\"x\":0,\"y\":0,\"width\":12,\"height\":6,\"properties\":{\"metrics\":[[\"AWS/EC2\",\"CPUUtilization\",\"InstanceId\",\"i-012345\"]],\"period\":300,\"stat\":\"Average\",\"region\":\"us-east-1\",\"title\":\"EC2 Instance CPU\"}},{\"type\":\"metric\",\"x\":12,\"y\":0,\"width\":12,\"height\":6,\"properties\":{\"metrics\":[[\"AWS/S3\",\"BucketSizeBytes\",\"BucketName\",\"amzn-s3-demo-bucket\"]],\"period\":86400,\"stat\":\"Maximum\",\"region\":\"us-east-1\",\"title\":\"amzn-s3-demo-bucket bytes\"}}]}"
}
}
}
```
### YAML
```
DashboardSideBySide:
Type: AWS::CloudWatch::Dashboard
Properties:
DashboardName: Dashboard1
DashboardBody: '{"widgets":[{"type":"metric","x":0,"y":0,"width":12,"height":6,"properties":{"metrics":[["AWS/EC2","CPUUtilization","InstanceId","i-012345"]],"period":300,"stat":"Average","region":"us-east-1","title":"EC2 Instance CPU"}},{"type":"metric","x":12,"y":0,"width":12,"height":6,"properties":{"metrics":[["AWS/S3","BucketSizeBytes","BucketName","amzn-s3-demo-bucket"]],"period":86400,"stat":"Maximum","region":"us-east-1","title":"amzn-s3-demo-bucket bytes"}}]}'
```