CODEWITHSUNDEEP
dockerkubernetes
Serve Laurijssen
Serve Laurijssen

Reputation: 9763

Call jobs on demand

We have a docker container which is a CLI application, it runs, does it s things and exits.

I got the assignment to put this into kubernetes but that containers can not be deployed as it exits and then is considered a crashloop.

So the next question is if it can be put in a job. The job runs and gets restarted every time a request comes in over the proxy. Is that possible? Can job be restarted externally with different parameters in kubernetes?

Upvotes: 0

Views: 147

Answers (1)

Jonas
Jonas

Reputation: 129075

So the next question is if it can be put in a job.

If it is supposed to just run once, a Kubernetes Job is a good fit.

The job runs and gets restarted every time a request comes in over the proxy. Is that possible?

This can not easyli be done without external add-ons. Consider using Knative for this.

Can job be restarted externally with different parameters in kubernetes?

Not easyli, you need to interact with the Kubernetes API, to create a new Job for this, if I understand you correctly. One way to do this, is to have a Job with kubectl-image and proper RBAC-permissions on the ServiceAccount to create new jobs - but this will involve some latency since it is two jobs.

Upvotes: 2

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