fix(lmeval): Disallow empty nodeAffinity

[tedhtchang]

1. Resolves [Bug] Empty nodeSelectorTerm in Pod #368
2. Add none nodeLabels example to README

[openshift-ci]

Hi @tedhtchang. Thanks for your PR.

I'm waiting for a trustyai-explainability member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[ruivieira]

LGTM, thanks!

[github-actions]

PR image build and manifest generation completed successfully!

📦 PR image: quay.io/trustyai/trustyai-service-operator-ci:ec5acb605119673963a27ddbd8e9ab1523995a2c

📦 LMES driver image: quay.io/trustyai/ta-lmes-driver:ec5acb605119673963a27ddbd8e9ab1523995a2c

📦 LMES job image: quay.io/trustyai/ta-lmes-job:ec5acb605119673963a27ddbd8e9ab1523995a2c

🗂️ CI manifests

devFlags:
  manifests:
    - contextDir: config
      sourcePath: ''
      uri: https://api.github.com/repos/trustyai-explainability/trustyai-service-operator-ci/tarball/operator-ec5acb605119673963a27ddbd8e9ab1523995a2c

[openshift-ci]

@tedhtchang: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/trustyai-service-operator-e2e	ec5acb6	link	true	/test trustyai-service-operator-e2e

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[yhwang]

/LGTM

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: ruivieira, yhwang

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