n8n
Version:
n8n Workflow Automation Tool
158 lines • 8.45 kB
JavaScript
"use strict";
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}) : function(o, v) {
o["default"] = v;
});
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};
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var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TaskRunnerModule = void 0;
const backend_common_1 = require("@n8n/backend-common");
const config_1 = require("@n8n/config");
const decorators_1 = require("@n8n/decorators");
const di_1 = require("@n8n/di");
const n8n_core_1 = require("n8n-core");
const n8n_workflow_1 = require("n8n-workflow");
const a = __importStar(require("node:assert/strict"));
const event_service_1 = require("../events/event.service");
const task_broker_ws_server_1 = require("../task-runners/task-broker/task-broker-ws-server");
const task_runner_process_restart_loop_detector_1 = require("../task-runners/task-runner-process-restart-loop-detector");
const missing_auth_token_error_1 = require("./errors/missing-auth-token.error");
const missing_requirements_error_1 = require("./errors/missing-requirements.error");
const task_requester_1 = require("./task-managers/task-requester");
let TaskRunnerModule = class TaskRunnerModule {
constructor(logger, errorReporter, runnerConfig, eventService) {
this.logger = logger;
this.errorReporter = errorReporter;
this.runnerConfig = runnerConfig;
this.eventService = eventService;
this.onRunnerRestartLoopDetected = async (error) => {
this.logger.error(error.message);
this.errorReporter.error(error);
await (0, n8n_workflow_1.sleep)(1000);
process.exit(1);
};
this.logger = this.logger.scoped('task-runner');
}
async start() {
a.ok(this.runnerConfig.enabled, 'Task runner is disabled');
const { mode, authToken } = this.runnerConfig;
if (mode === 'external' && !authToken)
throw new missing_auth_token_error_1.MissingAuthTokenError();
await this.loadTaskRequester();
await this.loadTaskBroker();
this.eventService.on('execution-cancelled', ({ executionId }) => {
this.taskRequester?.cancelTasks(executionId);
});
if (mode === 'internal')
await this.startInternalTaskRunners();
}
async stop() {
const stopRunnerProcessTask = (async () => {
if (this.jsRunnerProcess) {
await this.jsRunnerProcess.stop();
this.jsRunnerProcess = undefined;
}
})();
const stopPythonRunnerProcessTask = (async () => {
if (this.pyRunnerProcess) {
await this.pyRunnerProcess.stop();
this.pyRunnerProcess = undefined;
}
})();
const stopRunnerServerTask = (async () => {
if (this.taskBrokerHttpServer) {
await this.taskBrokerHttpServer.stop();
this.taskBrokerHttpServer = undefined;
}
})();
await Promise.all([stopRunnerProcessTask, stopPythonRunnerProcessTask, stopRunnerServerTask]);
}
async loadTaskRequester() {
const { TaskRequester } = await Promise.resolve().then(() => __importStar(require('../task-runners/task-managers/task-requester')));
const { LocalTaskRequester } = await Promise.resolve().then(() => __importStar(require('../task-runners/task-managers/local-task-requester')));
this.taskRequester = di_1.Container.get(LocalTaskRequester);
di_1.Container.set(TaskRequester, this.taskRequester);
}
async loadTaskBroker() {
const { TaskBrokerServer } = await Promise.resolve().then(() => __importStar(require('../task-runners/task-broker/task-broker-server')));
this.taskBrokerHttpServer = di_1.Container.get(TaskBrokerServer);
this.taskBrokerWsServer = di_1.Container.get(task_broker_ws_server_1.TaskBrokerWsServer);
await this.taskBrokerHttpServer.start();
}
async startInternalTaskRunners() {
a.ok(this.taskBrokerWsServer, 'Task Runner WS Server not loaded');
const { JsTaskRunnerProcess } = await Promise.resolve().then(() => __importStar(require('../task-runners/task-runner-process-js')));
this.jsRunnerProcess = di_1.Container.get(JsTaskRunnerProcess);
this.jsRunnerProcessRestartLoopDetector = new task_runner_process_restart_loop_detector_1.TaskRunnerProcessRestartLoopDetector(this.jsRunnerProcess);
this.jsRunnerProcessRestartLoopDetector.on('restart-loop-detected', this.onRunnerRestartLoopDetected);
await this.jsRunnerProcess.start();
if (this.runnerConfig.isNativePythonRunnerEnabled) {
const { PyTaskRunnerProcess } = await Promise.resolve().then(() => __importStar(require('../task-runners/task-runner-process-py')));
const failureReason = await PyTaskRunnerProcess.checkRequirements();
if (failureReason) {
di_1.Container.get(task_requester_1.TaskRequester).setRunnerUnavailable('python', failureReason);
const error = new missing_requirements_error_1.MissingRequirementsError(failureReason);
this.logger.warn(error.message);
return;
}
this.pyRunnerProcess = di_1.Container.get(PyTaskRunnerProcess);
this.pyRunnerProcessRestartLoopDetector = new task_runner_process_restart_loop_detector_1.TaskRunnerProcessRestartLoopDetector(this.pyRunnerProcess);
this.pyRunnerProcessRestartLoopDetector.on('restart-loop-detected', this.onRunnerRestartLoopDetected);
await this.pyRunnerProcess.start();
}
const { InternalTaskRunnerDisconnectAnalyzer } = await Promise.resolve().then(() => __importStar(require('../task-runners/internal-task-runner-disconnect-analyzer')));
this.taskBrokerWsServer.setDisconnectAnalyzer(di_1.Container.get(InternalTaskRunnerDisconnectAnalyzer));
}
};
exports.TaskRunnerModule = TaskRunnerModule;
__decorate([
(0, decorators_1.OnShutdown)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", []),
__metadata("design:returntype", Promise)
], TaskRunnerModule.prototype, "stop", null);
exports.TaskRunnerModule = TaskRunnerModule = __decorate([
(0, di_1.Service)(),
__metadata("design:paramtypes", [backend_common_1.Logger,
n8n_core_1.ErrorReporter,
config_1.TaskRunnersConfig,
event_service_1.EventService])
], TaskRunnerModule);
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