For a job in the normal state, if you use apply or create, there will be the problem of unchanged or existing name
But in many cases, I have a yaml that needs to be executed manually occasionally (no cron is required)
- First, use generatename + kubectl create to generate a new name each time
- Add TTL, so that the old jobs created will be cleaned up in time
apiVersion: batch/v1
kind: Job
metadata:
generateName: pi-with-ttl-
spec:
ttlSecondsAfterFinished: 10
template:
spec:
containers:
- name: pi
image: perl
command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
restartPolicy: Never
It should be noted that job TTL is a new feature of 1.21. In the old version of kubernetes, you may need to use cronjob to clean up these executed jobs regularly
kubectl delete jobs `kubectl get jobs -o custom-columns=:.metadata.name -n lizhe` -n lizhe
However, the above solution also suffers from the fact that cronjobs may delete running jobs by mistake
Be careful
