# Fragmentos de código de plantillas de Amazon CloudWatch
Use estos ejemplos de fragmentos de código de plantillas para describir los recursos de Amazon CloudWatch en CloudFormation. Para obtener más información, consulte la [Referencia del tipo de recurso de Amazon CloudWatch](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/AWS_CloudWatch.html).
**Topics**
+ [Alarma de facturación](#cloudwatch-sample-billing-alarm)
+ [Alarma de utilización de la CPU](#cloudwatch-sample-cpu-utilization-alarm)
+ [Recuperación de una instancia Amazon Elastic Compute Cloud](#cloudwatch-sample-recover-instance)
+ [Creación de un panel básico](#cloudwatch-sample-dashboard-basic)
+ [Creación de un panel con widgets en paralelo](#cloudwatch-sample-dashboard-sidebyside)
## Alarma de facturación
En el siguiente ejemplo, Amazon CloudWatch envía una notificación por correo electrónico cuando los cargos de una cuenta de AWS superan el umbral de alarma. Para recibir notificaciones de uso, habilite las alertas de facturación. Para obtener más información, consulte [Crear una alarma de facturación para supervisar los cargos estimados de AWS](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/monitor_estimated_charges_with_cloudwatch.html) en la *Guía del usuario de Amazon CloudWatch*.>
### 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"
```
## Alarma de utilización de la CPU
El siguiente fragmento de código de ejemplo crea una alarma que envía una notificación cuando el uso promedio de la CPU de una instancia Amazon EC2 supera el 90 por ciento durante más de 60 segundos durante tres periodos de evaluación.
### 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"
```
## Recuperación de una instancia Amazon Elastic Compute Cloud
La siguiente alarma de CloudWatch recupera una instancia de EC2 cuando presenta errores de comprobación de estado durante 15 minutos seguidos. Para obtener más información acerca de las acciones de alarma, consulte [Crear alarmas para detener, terminar, reiniciar o recuperar una instancia de EC2](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/UsingAlarmActions.html) en la *Guía del usuario de Amazon CloudWatch*.
### 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
```
## Creación de un panel básico
El siguiente ejemplo crea un panel de CloudWatch sencillo con un widget de métrica que muestra la utilización de CPU, y un widget de texto que muestra un mensaje.
### 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"}}]}'
```
## Creación de un panel con widgets en paralelo
El siguiente ejemplo crea un panel con dos widgets de métricas que aparecen uno al lado del otro.
### 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"}}]}'
```