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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
*/
namespace Piwik\Plugins\TestRunner\Aws;
use Aws\CloudWatch\CloudWatchClient;
use Aws\CloudWatch\Enum\ComparisonOperator;
use Aws\CloudWatch\Enum\Statistic;
use Aws\CloudWatch\Enum\Unit;
class CloudWatch
{
/**
* @var Config
*/
private $config;
/**
* @var CloudWatchClient
*/
private $client;
public function __construct(Config $awsConfig)
{
$this->config = $awsConfig;
$this->client = $this->getCloudWatchClient();
}
public function hasAssignedAlarms($instanceIds)
{
$result = $this->client->describeAlarmsForMetric(array(
'MetricName' => 'CPUUtilization',
'Namespace' => $this->getNamespace(),
'Dimensions' => $this->getDimensions($instanceIds)
));
$metricAlarms = $result->getPath('MetricAlarms');
return !empty($metricAlarms);
}
public function terminateInstanceIfIdleForTooLong($instanceIds)
{
$this->client->putMetricAlarm(array(
'AlarmName' => 'TerminateInstanceBecauseIdle',
'AlarmDescription' => 'Terminate instances if CPU is on average < 10% for 5 minutes in a row 8 times consecutively',
'ActionsEnabled' => true,
'OKActions' => array(),
'AlarmActions' => $this->getAlarmActions(),
'InsufficientDataActions' => array(),
'MetricName' => 'CPUUtilization',
'Namespace' => $this->getNamespace(),
'Statistic' => Statistic::AVERAGE,
'Dimensions' => $this->getDimensions($instanceIds),
'Period' => 300,
'Unit' => Unit::PERCENT,
'EvaluationPeriods' => 8,
'Threshold' => 10,
'ComparisonOperator' => ComparisonOperator::LESS_THAN_THRESHOLD,
));
$this->client->putMetricAlarm(array(
'AlarmName' => 'TerminateInstanceIfStatusCheckFails',
'AlarmDescription' => 'Terminate instances in case two status check fail within one minute',
'ActionsEnabled' => true,
'OKActions' => array(),
'AlarmActions' => $this->getAlarmActions(),
'InsufficientDataActions' => array(),
'MetricName' => 'StatusCheckFailed',
'Namespace' => $this->getNamespace(),
'Statistic' => Statistic::AVERAGE,
'Dimensions' => $this->getDimensions($instanceIds),
'Period' => 60,
'Unit' => Unit::PERCENT,
'EvaluationPeriods' => 2,
'Threshold' => 1,
'ComparisonOperator' => ComparisonOperator::GREATER_THAN_OR_EQUAL_TO_THRESHOLD,
));
}
private function getCloudWatchClient()
{
return CloudWatchClient::factory($this->getConnectionOptions());
}
private function getConnectionOptions()
{
return array(
'key' => $this->config->getAccessKey(),
'secret' => $this->config->getSecretKey(),
'region' => $this->config->getRegion()
);
}
private function getDimensions($instanceIds)
{
$dimensions = array();
foreach ($instanceIds as $instanceId) {
$dimensions[] = array(
'Name' => 'InstanceId',
'Value' => $instanceId,
);
}
return $dimensions;
}
private function getNamespace()
{
return 'AWS/EC2';
}
private function getAlarmActions()
{
return array(
'arn:aws:automate:' . $this->config->getRegion() . ':ec2:terminate',
'arn:aws:sns:' . $this->config->getRegion() . ':682510200394:TerminateInstanceBecauseIdle'
);
}
}
|
