public function startHost($vmDetails)
{
// what are we doing?
$log = usingLog()->startAction("start VM");
// is the VM actually running?
if ($this->isRunning($vmDetails)) {
// yes it is ... nothing to do
//
// we've decided not to treat this as an error ... that might
// change in a future release
$log->endAction("VM is already running");
return;
}
// get our Ec2 client from the SDK
$client = fromAws()->getEc2Client();
// what is our instanceId?
$instanceId = $vmDetails->ec2Instance['InstanceId'];
// let's start the VM
try {
$log->addStep("start EC2 VM instance '{$instanceId}'", function () use($client, &$response, $instanceId) {
$response = $client->startInstances(array("InstanceIds" => array($instanceId)));
});
// now, we need to wait until this instance is running
$log->addStep("wait for EC2 VM '{$instanceId}' to finish booting", function () use($client, $vmDetails, $response, $instanceId) {
$client->waitUntilInstanceRunning(array('InstanceIds' => array($instanceId), 'waiter.interval' => 10, 'waiter.max_attempts' => 10));
// remember the instance data, to save us time in the future
$vmDetails->ec2Instance = $response['Instances'][0];
});
} catch (Exception $e) {
// something went wrong
$log->endAction("VM failed to start :(");
throw new E5xx_ActionFailed(__METHOD__, $e->getMessage());
}
// yes it did!!
//
// now, we need its IP address, which may have changed
$ipAddress = $this->determineIpAddress($vmDetails);
// store the IP address for future use
$vmDetails->ipAddress = $ipAddress;
// all done
$log->endAction("VM successfully started; IP address is {$ipAddress}");
}
