Run Daily Jobs at 9 AM Every Day | CronBase

#!/usr/bin/env bash
set -euo pipefail

LOCKFILE="/var/tmp/daily_report.lock"

# Ensure mutual exclusion using flock
exec 9>"$LOCKFILE"
if ! flock -n 9; then
  echo "Error: Another instance of the daily report job is already running." >&2
  exit 1
fi

echo "[$(date -u)] Starting daily 9 AM reporting task..."
# Perform operational task here
/usr/local/bin/generate_metrics_report

echo "[$(date -u)] Task completed successfully."

const cron = require('node-cron');

// Schedule task to run daily at 9:00 AM in New York timezone
cron.schedule('0 9 * * *', async () => {
  console.log(`[${new Date().toISOString()}] Initiating daily morning synchronization...`);
  try {
    await runSyncProcess();
    console.log(`[${new Date().toISOString()}] Morning synchronization finished successfully.`);
  } catch (error) {
    console.error(`[${new Date().toISOString()}] CRITICAL: Daily sync failed:`, error);
    // Implement alerting (e.g., Sentry, PagerDuty) here
  }
}, {
  scheduled: true,
  timezone: "America/New_York"
});

function runSyncProcess() {
  return new Promise((resolve) => setTimeout(resolve, 5000));
}

from apscheduler.schedulers.blocking import BlockingScheduler
import logging
import sys

logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
logger = logging.getLogger(__name__)

def daily_job():
    logger.info("Executing scheduled daily 9 AM task...")
    try:
        # Place production logic here
        pass
    except Exception as e:
        logger.error(f"Failed to execute daily job: {e}", exc_info=True)
        sys.exit(1)

if __name__ == '__main__':
    scheduler = BlockingScheduler()
    scheduler.add_job(daily_job, 'cron', hour=9, minute=0, timezone='UTC')
    logger.info("Starting scheduler. Daily job set for 09:00 UTC.")
    try:
        scheduler.start()
    except (KeyboardInterrupt, SystemExit):
        logger.info("Scheduler stopped.")

package main

import (
	"log"
	"os"
	"os/signal"
	"syscall"
	"github.com/robfig/cron/v3"
)

func main() {
	logger := log.New(os.Stdout, "[CronDaily] ", log.LstdFlags|log.Lshortfile)
	c := cron.New(cron.WithParser(cron.NewParser(
		cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor,
	)))

	_, err := c.AddFunc("0 9 * * *", func() {
		logger.Println("Starting execution of daily 9 AM job...")
		if err := performDailyTask(); err != nil {
			logger.Printf("ERROR: Daily task execution failed: %v\n", err)
		} else {
			logger.Println("Daily task execution completed successfully.")
		}
	})
	if err != nil {
		logger.Fatalf("Failed to schedule daily job: %v", err)
	}

	c.Start()
	logger.Println("Scheduler started. Waiting for next run...")

	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
	<-sigChan
	c.Stop()
	logger.Println("Scheduler stopped cleanly.")
}

func performDailyTask() error {
	return nil
}

package com.cronbase.scheduler;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class DailyTaskScheduler {

    private static final Logger logger = LoggerFactory.getLogger(DailyTaskScheduler.class);

    @Scheduled(cron = "0 0 9 * * *", zone = "UTC")
    public void executeDailyTask() {
        logger.info("Daily 9 AM task execution started.");
        try {
            runBusinessLogic();
            logger.info("Daily 9 AM task completed successfully.");
        } catch (Exception e) {
            logger.error("Critical failure during daily task execution: ", e);
        }
    }

    private void runBusinessLogic() throws Exception {
        // Production application logic goes here
    }
}

apiVersion: batch/v1
kind: CronJob
metadata:
  name: daily-9am-cleanup
  namespace: production
spec:
  schedule: "0 9 * * *"
  concurrencyPolicy: Forbid
  startingDeadlineSeconds: 600
  successfulJobsHistoryLimit: 3
  failedJobsHistoryLimit: 5
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: worker
            image: rcr.io/company/worker-app:latest
            command: ["/bin/sh", "-c", "/app/run-daily-cleanup.sh"]
            resources:
              requests:
                cpu: "500m"
                memory: "512Mi"
              limits:
                cpu: "1"
                memory: "1Gi"
          restartPolicy: OnFailure