feat(core): Increase Cron observability (#17626)

packages/@n8n/config/src/configs/logging.config.ts

@@ -19,10 +19,22 @@ export const LOG_SCOPES = [
 	'insights',
 	'workflow-activation',
 	'ssh-client',
+	'cron',
 ] as const;
 
 export type LogScope = (typeof LOG_SCOPES)[number];
 
+@Config
+export class CronLoggingConfig {
+	/**
+	 * Interval in minutes to log currently active cron jobs. Set to `0` to disable.
+	 *
+	 * @example `N8N_LOG_CRON_ACTIVE_INTERVAL=30` will log active crons every 30 minutes.
+	 */
+	@Env('N8N_LOG_CRON_ACTIVE_INTERVAL')
+	activeInterval: number = 0;
+}
+
 @Config
 class FileLoggingConfig {
 	/**
@@ -79,6 +91,9 @@ export class LoggingConfig {
 	@Nested
 	file: FileLoggingConfig;
 
+	@Nested
+	cron: CronLoggingConfig;
+
 	/**
 	 * Scopes to filter logs by. Nothing is filtered by default.
 	 *

packages/@n8n/config/src/index.ts

@@ -51,6 +51,7 @@ export { MfaConfig } from './configs/mfa.config';
 export { HiringBannerConfig } from './configs/hiring-banner.config';
 export { PersonalizationConfig } from './configs/personalization.config';
 export { NodesConfig } from './configs/nodes.config';
+export { CronLoggingConfig } from './configs/logging.config';
 
 const protocolSchema = z.enum(['http', 'https']);
 

packages/@n8n/config/test/config.test.ts

@@ -275,6 +275,9 @@ describe('GlobalConfig', () => {
 				location: 'logs/n8n.log',
 			},
 			scopes: [],
+			cron: {
+				activeInterval: 0,
+			},
 		},
 		multiMainSetup: {
 			enabled: false,