Scheduled Job Pattern

Distributed systems and the microservices architecture do not rely on temporal events for running services; instead, they focus on triggers such as HTTP requests, new database entries, or messaging queues. However, scheduling a task and expecting it to run at specified intervals are common approaches that are part of the "Scheduled Job Pattern". Microservices for maintenance operations, sending daily emails, or checking for old files should be scheduled at fixed intervals and must run to meet business needs. Kubernetes provides the CronJob resource for creating scheduled tasks, and it ensures that these jobs are running.