367 lines
12 KiB
PHP
367 lines
12 KiB
PHP
<?php
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use Appwrite\Event\Event;
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use Appwrite\Messaging\Adapter\Realtime;
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use Appwrite\Resque\Worker;
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use Appwrite\Stats\Stats;
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use Appwrite\Utopia\Response\Model\Execution;
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use Cron\CronExpression;
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use Swoole\Runtime;
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use Utopia\App;
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use Utopia\CLI\Console;
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use Utopia\Config\Config;
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use Utopia\Database\Database;
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use Utopia\Database\Document;
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use Utopia\Database\Validator\Authorization;
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use Utopia\Orchestration\Orchestration;
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use Utopia\Orchestration\Adapter\DockerAPI;
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use Utopia\Orchestration\Container;
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use Utopia\Orchestration\Exception\Orchestration as OrchestrationException;
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use Utopia\Orchestration\Exception\Timeout as TimeoutException;
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require_once __DIR__.'/../init.php';
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Runtime::enableCoroutine(0);
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Console::title('Functions V1 Worker');
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Console::success(APP_NAME . ' functions worker v1 has started');
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$runtimes = Config::getParam('runtimes');
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$dockerUser = App::getEnv('DOCKERHUB_PULL_USERNAME', null);
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$dockerPass = App::getEnv('DOCKERHUB_PULL_PASSWORD', null);
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$dockerEmail = App::getEnv('DOCKERHUB_PULL_EMAIL', null);
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$orchestration = new Orchestration(new DockerAPI($dockerUser, $dockerPass, $dockerEmail));
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$warmupEnd = \microtime(true);
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$warmupTime = $warmupEnd - $warmupStart;
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Console::success('Finished warmup in ' . $warmupTime . ' seconds');
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/**
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* List function servers
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*/
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$stdout = '';
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$stderr = '';
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$executionStart = \microtime(true);
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$response = $orchestration->list(['label' => 'appwrite-type=function']);
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/** @var Container[] $list */
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$list = [];
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foreach ($response as $value) {
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$list[$value->getName()] = $value;
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}
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$executionEnd = \microtime(true);
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Console::info(count($list) . ' functions listed in ' . ($executionEnd - $executionStart) . ' seconds');
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/**
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* 1. Get event args - DONE
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* 2. Unpackage code in the isolated container - DONE
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* 3. Execute in container with timeout
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* + messure execution time - DONE
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* + pass env vars - DONE
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* + pass one-time api key
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* 4. Update execution status - DONE
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* 5. Update execution stdout & stderr - DONE
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* 6. Trigger audit log - DONE
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* 7. Trigger usage log - DONE
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*/
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// TODO avoid scheduled execution if delay is bigger than X offest
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class FunctionsV1 extends Worker
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{
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public array $args = [];
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public array $allowed = [];
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public function getName(): string {
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return "functions";
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}
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public function init(): void
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{
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}
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public function run(): void
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{
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$projectId = $this->args['projectId'] ?? '';
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$functionId = $this->args['functionId'] ?? '';
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$webhooks = $this->args['webhooks'] ?? [];
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$executionId = $this->args['executionId'] ?? '';
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$trigger = $this->args['trigger'] ?? '';
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$event = $this->args['event'] ?? '';
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$scheduleOriginal = $this->args['scheduleOriginal'] ?? '';
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$eventData = (!empty($this->args['eventData'])) ? json_encode($this->args['eventData']) : '';
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$data = $this->args['data'] ?? '';
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$userId = $this->args['userId'] ?? '';
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$jwt = $this->args['jwt'] ?? '';
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$database = $this->getProjectDB($projectId);
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switch ($trigger) {
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case 'event':
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$limit = 30;
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$sum = 30;
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$offset = 0;
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$functions = [];
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/** @var Document[] $functions */
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while ($sum >= $limit) {
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Authorization::disable();
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$functions = $database->find('functions', [], $limit, $offset, ['name'], [Database::ORDER_ASC]);
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Authorization::reset();
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$sum = \count($functions);
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$offset = $offset + $limit;
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Console::log('Fetched ' . $sum . ' functions...');
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foreach ($functions as $function) {
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$events = $function->getAttribute('events', []);
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$tag = $function->getAttribute('tag', []);
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Console::success('Itterating function: ' . $function->getAttribute('name'));
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if (!\in_array($event, $events) || empty($tag)) {
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continue;
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}
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Console::success('Triggered function: ' . $event);
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$this->execute(
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trigger: 'event',
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projectId: $projectId,
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executionId: '',
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database: $database,
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function: $function,
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event: $event,
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eventData: $eventData,
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data: $data,
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webhooks: $webhooks,
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userId: $userId,
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jwt: $jwt
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);
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}
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}
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break;
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case 'schedule':
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/*
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* 1. Get Original Task
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* 2. Check for updates
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* If has updates skip task and don't reschedule
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* If status not equal to play skip task
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* 3. Check next run date, update task and add new job at the given date
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* 4. Execute task (set optional timeout)
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* 5. Update task response to log
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* On success reset error count
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* On failure add error count
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* If error count bigger than allowed change status to pause
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*/
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// Reschedule
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Authorization::disable();
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$function = $database->getDocument('functions', $functionId);
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Authorization::reset();
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if (empty($function->getId())) {
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throw new Exception('Function not found ('.$functionId.')');
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}
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if ($scheduleOriginal && $scheduleOriginal !== $function->getAttribute('schedule')) { // Schedule has changed from previous run, ignore this run.
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return;
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}
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$cron = new CronExpression($function->getAttribute('schedule'));
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$next = (int) $cron->getNextRunDate()->format('U');
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$function
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->setAttribute('scheduleNext', $next)
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->setAttribute('schedulePrevious', \time());
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Authorization::disable();
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$function = $database->updateDocument('functions', $function->getId(), new Document(array_merge($function->getArrayCopy(), [
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'scheduleNext' => (int)$next,
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])));
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if ($function === false) {
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throw new Exception('Function update failed (' . $functionId . ')');
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}
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Authorization::reset();
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ResqueScheduler::enqueueAt($next, 'v1-functions', 'FunctionsV1', [
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'projectId' => $projectId,
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'webhooks' => $webhooks,
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'functionId' => $function->getId(),
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'userId' => $userId,
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'executionId' => null,
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'trigger' => 'schedule',
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'scheduleOriginal' => $function->getAttribute('schedule', ''),
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]); // Async task reschedule
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$this->execute(
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trigger: $trigger,
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projectId: $projectId,
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executionId: $executionId,
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database: $database,
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function: $function,
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data: $data,
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webhooks: $webhooks,
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userId: $userId,
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jwt: $jwt
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);
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break;
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case 'http':
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Authorization::disable();
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$function = $database->getDocument('functions', $functionId);
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Authorization::reset();
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if (empty($function->getId())) {
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throw new Exception('Function not found ('.$functionId.')');
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}
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$this->execute(
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trigger: $trigger,
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projectId: $projectId,
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executionId: $executionId,
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database: $database,
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function: $function,
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data: $data,
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webhooks: $webhooks,
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userId: $userId,
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jwt: $jwt
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);
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break;
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}
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}
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/**
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* Execute function tag
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*
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* @param string $trigger
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* @param string $projectId
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* @param string $executionId
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* @param Database $database
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* @param Document $function
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* @param string $event
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* @param string $eventData
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* @param string $data
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* @param array $webhooks
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* @param string $userId
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* @param string $jwt
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*
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* @return void
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*/
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public function execute(string $trigger, string $projectId, string $executionId, Database $database, Document $function, string $event = '', string $eventData = '', string $data = '', array $webhooks = [], string $userId = '', string $jwt = ''): void
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{
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$ch = \curl_init();
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\curl_setopt($ch, CURLOPT_URL, "http://appwrite-executor:8080/v1/execute");
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\curl_setopt($ch, CURLOPT_POST, true);
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\curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
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'trigger' => $trigger,
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'projectId' => $projectId,
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'executionId' => $executionId,
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'functionId' => $function->getId(),
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'event' => $event,
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'eventData' => $eventData,
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'data' => $data,
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'webhooks' => $webhooks,
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'userId' => $userId,
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'jwt' => $jwt,
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]));
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\curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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\curl_setopt($ch, CURLOPT_TIMEOUT, App::getEnv('_APP_FUNCTIONS_TIMEOUT', 900) + 200); // + 200 for safety margin
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\curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
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\curl_setopt($ch, CURLOPT_HTTPHEADER, [
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'Content-Type: application/json',
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'x-appwrite-project: '.$projectId,
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'x-appwrite-executor-key: '. App::getEnv('_APP_EXECUTOR_SECRET', '')
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]);
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\curl_exec($ch);
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$error = \curl_error($ch);
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if (!empty($error)) {
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Console::error('Curl error: '.$error);
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}
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\curl_close($ch);
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}
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/**
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* Cleanup any hanging containers above the allowed max containers.
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*
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* @return void
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*/
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public function cleanup(): void
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{
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/** @var Container[] $list */
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global $list;
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/** @var Orchestration $orchestration */
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global $orchestration;
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Console::success(count($list) . ' running containers counted');
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$max = (int) App::getEnv('_APP_FUNCTIONS_CONTAINERS');
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if (\count($list) > $max) {
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Console::info('Starting containers cleanup');
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\uasort($list, function (Container $item1, Container $item2) {
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return (int)($item1->getLabels['appwrite-created'] ?? 0) <=> (int)($item2->getLabels['appwrite-created'] ?? 0);
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});
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while (\count($list) > $max) {
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$first = \array_shift($list);
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try {
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$orchestration->remove($first->getName(), true);
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Console::info('Removed container: ' . $first->getName());
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} catch (Exception $e) {
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Console::error('Failed to remove container: ' . $e);
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}
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}
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}
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}
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/**
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* Filter ENV vars
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*
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* @param string $string
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*
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* @return string
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*/
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public function filterEnvKey(string $string): string
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{
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if (empty($this->allowed)) {
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$this->allowed = array_fill_keys(\str_split('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_'), true);
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}
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$string = \str_split($string);
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$output = '';
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foreach ($string as $char) {
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if (\array_key_exists($char, $this->allowed)) {
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$output .= $char;
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}
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}
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return $output;
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}
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public function shutdown(): void
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{
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}
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}
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