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noseka1 / openshift-auto-upi

OpenShift Automated User-Provided Infrastructure
Apache License 2.0
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Make masters unschedulable #10

Closed jfblaine closed 4 years ago

jfblaine commented 4 years ago

Is there way to not make the masters schedulable?

jfblaine commented 4 years ago

For clarity's sake, what I mean is when the cluster is up, the masters are listed as having both the master and worker role (ROLE: master,worker). Is there a way to set the configuration so the masters only have the master role?

jfblaine commented 4 years ago

Talked to Ales about this, he explained he generally makes this change after the install completes. I will do the same, if we feel there is some super compelling reason to do it prior to the install, he explained he may add the feature at that point.

noseka1 commented 4 years ago

This can now be achieved by leveraging the filetranspiler feature that will be part of the 1.6 release: https://github.com/noseka1/openshift-auto-upi/blob/master/docs/customizing_ignition_configs.md

The filetranspiler samples include the example of setting the masters to be unschedulable: https://github.com/noseka1/openshift-auto-upi/blob/master/docs/examples/ignition/filetranspiler/bootstrap/opt/openshift/manifests/cluster-scheduler-02-config.yml