Adding validation for local_queue provided in cluster config

[Fiona-Waters]

Issue link

RHOAIENG-7064

What changes have been made

Currently when specifying local_queue, if any value is provided the ray cluster can be created. Added a check to validate local_queue name provided by user in cluster configuration exists.

Verification steps

• Install RHOAI with codeflare components set to Managed
• In a jupyter notebook install codeflare sdk from this branch

git clone https://github.com/Fiona-Waters/codeflare-sdk.git -b local-queue
cd codeflare-sdk
pip install poetry
poetry install

• Restart the kernal and run through a demo notebook
  • Ensure that you do not have the required annotation for the default local queue set.
• scenario 1
  • Set the local_queue parameter to foobar and check that you cannot continue and you see the correct error message.
• scenario 2
  • Provide an existing local_queue name and see that you can continue and create the ray cluster
• scenario 3
  • Comment out the local_queue parameter and see that you get the correct error message.

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • Testing is not required for this change

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: franciscojavierarceo

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• OWNERS [franciscojavierarceo]

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[KPostOffice]

/lgtm