put_metric_alarm.cpp - AWS Code Sample


put_metric_alarm.cpp demonstrates how to attach an Amazon CloudWatch metrics alarm.

/* Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. This file is licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at http://aws.amazon.com/apache2.0/ This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ #include <aws/core/Aws.h> #include <aws/monitoring/CloudWatchClient.h> #include <aws/monitoring/model/PutMetricAlarmRequest.h> #include <iostream> /** * Adds a CloudWatch alarm to an instance based on CPU utilization */ int main(int argc, char** argv) { if (argc != 3) { std::cout << "Usage:" << " put_metric_alarm " << "<alarm_name> <instance_id>" << std::endl; return 1; } Aws::SDKOptions options; Aws::InitAPI(options); { Aws::String alarm_name(argv[1]); Aws::String instanceId(argv[2]); Aws::CloudWatch::CloudWatchClient cw; Aws::CloudWatch::Model::PutMetricAlarmRequest request; request.SetAlarmName(alarm_name); request.SetComparisonOperator( Aws::CloudWatch::Model::ComparisonOperator::GreaterThanThreshold); request.SetEvaluationPeriods(1); request.SetMetricName("CPUUtilization"); request.SetNamespace("AWS/EC2"); request.SetPeriod(60); request.SetStatistic(Aws::CloudWatch::Model::Statistic::Average); request.SetThreshold(70.0); request.SetActionsEnabled(false); request.SetAlarmDescription("Alarm when server CPU exceeds 70%"); request.SetUnit(Aws::CloudWatch::Model::StandardUnit::Seconds); Aws::CloudWatch::Model::Dimension dimension; dimension.SetName("InstanceId"); dimension.SetValue(instanceId); request.AddDimensions(dimension); auto outcome = cw.PutMetricAlarm(request); if (!outcome.IsSuccess()) { std::cout << "Failed to create CloudWatch alarm:" << outcome.GetError().GetMessage() << std::endl; } else { std::cout << "Successfully created CloudWatch alarm " << alarm_name << std::endl; } } Aws::ShutdownAPI(options); return 0; }

Sample Details

Service: cloudwatch

Author: AWS

Type: full-example