n8n
Version:
n8n Workflow Automation Tool
111 lines • 4.86 kB
JavaScript
"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TaskRunnerProcessBase = 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 strict_1 = __importDefault(require("node:assert/strict"));
const typed_emitter_1 = require("../typed-emitter");
const forward_to_logger_1 = require("./forward-to-logger");
const task_broker_auth_service_1 = require("./task-broker/auth/task-broker-auth.service");
const task_runner_lifecycle_events_1 = require("./task-runner-lifecycle-events");
let TaskRunnerProcessBase = class TaskRunnerProcessBase extends typed_emitter_1.TypedEmitter {
constructor(logger, runnerConfig, authService, runnerLifecycleEvents) {
super();
this.logger = logger;
this.runnerConfig = runnerConfig;
this.authService = authService;
this.runnerLifecycleEvents = runnerLifecycleEvents;
this.process = null;
this._runPromise = null;
this.isShuttingDown = false;
this.logger = logger.scoped(this.loggerScope);
this.runnerLifecycleEvents.on('runner:failed-heartbeat-check', () => {
this.logger.warn('Task runner failed heartbeat check, restarting...');
void this.forceRestart();
});
this.runnerLifecycleEvents.on('runner:timed-out-during-task', () => {
this.logger.warn('Task runner timed out during task, restarting...');
void this.forceRestart();
});
}
get isRunning() {
return this.process !== null;
}
get pid() {
return this.process?.pid;
}
get runPromise() {
return this._runPromise;
}
get isInternal() {
return this.runnerConfig.mode === 'internal';
}
async start() {
(0, strict_1.default)(!this.process, `${this.name} already running`);
const grantToken = await this.authService.createGrantToken();
const taskBrokerUri = `http://127.0.0.1:${this.runnerConfig.port}`;
this.process = await this.startProcess(grantToken, taskBrokerUri);
(0, forward_to_logger_1.forwardToLogger)(this.logger, this.process, `[${this.name}] `);
this.monitorProcess(this.process);
}
async stop() {
if (!this.process)
return;
this.isShuttingDown = true;
this.process.kill();
await this._runPromise;
this.isShuttingDown = false;
}
async forceRestart() {
if (!this.process)
return;
this.process.kill('SIGKILL');
await this._runPromise;
}
onProcessExit(code, resolveFn) {
this.process = null;
const exitReason = this.analyzeExitReason?.(code) ?? { reason: 'unknown' };
this.emit('exit', exitReason);
resolveFn();
if (!this.isShuttingDown) {
setImmediate(async () => await this.start());
}
}
monitorProcess(taskRunnerProcess) {
this._runPromise = new Promise((resolve) => {
this.setupProcessMonitoring?.(taskRunnerProcess);
taskRunnerProcess.on('exit', (code) => {
this.onProcessExit(code, resolve);
});
});
}
};
exports.TaskRunnerProcessBase = TaskRunnerProcessBase;
__decorate([
(0, decorators_1.OnShutdown)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", []),
__metadata("design:returntype", Promise)
], TaskRunnerProcessBase.prototype, "stop", null);
exports.TaskRunnerProcessBase = TaskRunnerProcessBase = __decorate([
(0, di_1.Service)(),
__metadata("design:paramtypes", [backend_common_1.Logger,
config_1.TaskRunnersConfig,
task_broker_auth_service_1.TaskBrokerAuthService,
task_runner_lifecycle_events_1.TaskRunnerLifecycleEvents])
], TaskRunnerProcessBase);
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