[feature] Posibility to set tolerations for driver pods

[jan-stanek]

Feature Area

/area backend

What feature would you like to see?

It would be great to have posibility to set tolerations also for container-driver and dag-driver.

What is the use case or pain point?

We have a cluster where all nodes are tainted, so we are not able to execute any pipeline.

Is there a workaround currently?

It is not possible, we have to use v1 pipelines.

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[gregsheremeta]

The interface for controlling driver is typically environment variables. Would you want to set driver tolerations in pipeline code, or would you be ok with an env var on the apiserver deployment that applied to all runs across all pipelines? I ask because from a user api perspective, I don't love leaking things about driver into pipeline code.

[jan-stanek]

Env var on the apiserver deployment is enough