Sometimes you may need to quickly trigger a kubernetes cronjob and the next interval of execution is pretty far. This is how you could do it.
The idea is pretty simple, you create a new job out of the cronjob definition and that job will run to finish. Nothing more to worry about
kubectl create job --from=cronjob/<cronhob> <job>
For example, let’s say you have a cronjob named backup and you want to run it manually once. You can create a new job like this
kubectl create job --from=cronjob/backup backup-manual
That’s all