public function observeStackActivity($pollInterval = 20)
{
$eventTable = new StackEventsTable($this->output);
$lastStatus = Poller::poll(function () use($eventTable) {
try {
try {
$this->stack = $this->stackFactory->getStack($this->stack->getName(), true);
// load fresh instance for updated status
$this->output->writeln("-> Polling... (Stack Status: {$this->stack->getStatus()})");
$eventTable->renderEvents($this->stack->getEvents());
} catch (CloudFormationException $exception) {
throw Exception::refineException($exception);
}
} catch (StackNotFoundException $exception) {
$this->output->writeln("-> Stack gone.");
return Stack::STATUS_STACK_GONE;
// this is != false and will stop the poller
}
return $this->stack->isInProgress() ? false : $this->stack->getStatus();
}, $pollInterval, 1000);
$this->printStatus($lastStatus);
$this->printResources();
$this->printOutputs();
return $lastStatus;
}
/**
* @test
*/
public function returnValueFromCallback()
{
$function = function () {
if (!isset($this->counters[__METHOD__])) {
$this->counters[__METHOD__] = 0;
}
return $this->counters[__METHOD__]++ > 5 ? "HELLO WORLD" : false;
};
$result = \StackFormation\Poller::poll($function, 0);
$this->assertEquals("HELLO WORLD", $result);
}
/**
* @return \Aws\Result
* @throws \Exception
*/
public function getChangeSet()
{
$arguments = $this->prepareArguments();
try {
$this->executeBeforeScript();
if (isset($arguments['StackPolicyBody'])) {
unset($arguments['StackPolicyBody']);
}
$arguments['ChangeSetName'] = 'stackformation' . time();
$res = $this->getCfnClient()->createChangeSet($arguments);
$changeSetId = $res->get('Id');
$result = Poller::poll(function () use($changeSetId) {
$result = $this->getCfnClient()->describeChangeSet(['ChangeSetName' => $changeSetId]);
if ($this->output && !$this->output->isQuiet()) {
$this->output->writeln("Status: {$result['Status']}");
}
if ($result['Status'] == 'FAILED') {
throw new \Exception($result['StatusReason']);
}
return $result['Status'] != 'CREATE_COMPLETE' ? false : $result;
});
} catch (CloudFormationException $e) {
throw Exception::refineException($e);
// will try to create a StackNotFoundException
}
return $result;
}
