How to configure project node selector in RHOCP 4

Environment

• Red Hat OpenShift Container Platform (RHOCP) 4

Issue

• How to configure project node selector in RHOCP 4?

Resolution

The default project node selector defaultNodeSelector will be applied to all projects that don't have an openshift.io/node-selector annotation.

To set up the default project node selector globally:

$ oc patch scheduler cluster --type=merge -p '{"spec":{"defaultNodeSelector":"type=app"}}'

To remove it:

$ oc patch scheduler cluster --type=merge -p '{"spec":{"defaultNodeSelector":null}}'

To disable the global node selector at the project level:

$ oc annotate namespace $PROJECT openshift.io/node-selector=

To configure the node selector at the project level:

$ oc annotate namespace $PROJECT openshift.io/node-selector=type=app

To remove it:

$ oc annotate namespace $PROJECT openshift.io/node-selector-

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