NewCronJob creates a new cronjob.

NewEnableAfterBecameLeader creates a new EnableAfterBecameLeader Runnable.

CronJob periodically runs a worker function.

CronJobConfig is the configuration for a cronjob.

EnableAfterBecameLeader is a Runnable that will call the enable function when the current instance becomes the leader.

Leader is a Runnable that needs to be run only when the current instance is the leader.

LeaderOrNonLeader is a Runnable that needs to be run regardless of whether the current instance is the leader.