How can I trigger a Kubernetes Scheduled Job manually?

Unfortunately, none of the example syntaxes above works in Google Kubernetes Engine (GCP). Also, the GKE docs themselves are wrong.

In Kubernetes 1.10.6.gke-2, the working syntax is:

kubectl create job <your-new-job-name> --from=cronjob/<name-of-deployed-cron-job> -n <target namespace>

The issue #47538 that @jdf mentioned is now closed and this is now possible. The original implementation can be found here but the syntax has changed.

With kubectl v1.10.1+ the command is:

kubectl create job --from=cronjob/<cronjob-name> <job-name>

It seems to be backwardly compatible with older clusters as it worked for me on v0.8.x.

You can create a simple job based on your ScheduledJob. If you already run a ScheduledJob, there are jobs in history.

kubectl get jobs

NAME               DESIRED   SUCCESSFUL   AGE
hello-1477281595   1         1            11m
hello-1553106750   1         1            12m
hello-1553237822   1         1            9m

Export one of these jobs:

kubectl get job hello-1477281595 -o yaml > my_job.yaml

Then edit the yaml a little bit, erasing some unnecessary fields and run it manually:

kubectl create -f my_job.yaml
kubectl delete -f my_job.yaml