Support spec.devEnvironments.podSchedulerName in CR

[dkwon17]

What does this PR do?

This PR is a draft PR because this PR depends on DWO 0.18.0, since that is when the config.workspace.schedulerName field would be introduced for the DWO config. This PR can still be tested, since the devworkspace-operator dependency in go.mod has been temporarily updated to point to this PR branch that introduced config.workspace.schedulerName

Should be merged after https://github.com/eclipse-che/che-operator/pull/1549 is merged

This PR introduces the devEnvironments.podSchedulerName field in the Che CR. When this field is set, it updates the config.workspace.schedulerName field of the Che-operator-managed DWO config.

Screenshot/screencast of this PR

In this demo:

• in the Che CR, the devEnvironments.podSchedulerName field is set to testing123.
• the DWOC is updated, the workspace.schedulerName field is set to testing123.
• a workspace is started, and the workspace pod has a schedulerName of testing123`.
• in the Che CR, the devEnvironments.podSchedulerName field is removed.
• the DWOC is updated, the workspace.schedulerName field is now unset.
• a workspace is started, and the workspace pod has the default schedulerName of default-scheduler`.

https://user-images.githubusercontent.com/83611742/202806779-5bbe738e-0dc4-4ca5-8382-3d613ce43873.mp4

What issues does this PR fix or reference?

https://github.com/eclipse/che/issues/21803

How to test this PR?

cat > /tmp/cs.yaml <<EOF
apiVersion:  operators.coreos.com/v1alpha1
kind:         CatalogSource
metadata:
  name:         eclipse-che-custom-catalog
  namespace:    eclipse-che
spec:
  image:       quay.io/dkwon17/eclipse-che-openshift-opm-catalog:schedulerName
  sourceType:  grpc
  updateStrategy:
    registryPoll:
      interval: 5m
EOF

chectl server:deploy \
    --che-operator-image=quay.io/dkwon17/che-operator:schedulerName \
    --installer=olm \
    --platform=openshift \
    --catalog-source-yaml /tmp/cs.yaml \
    --olm-channel=next \
    --package-manifest-name=eclipse-che-preview-openshift

PR Checklist

As the author of this Pull Request I made sure that:

• [ ] The Eclipse Contributor Agreement is valid
• [ ] Code produced is complete
• [ ] Code builds without errors
• [ ] Tests are covering the bugfix
• [ ] Development resource are up to date
• [ ] The repository devfile is up to date and works
• [ ] Sections What issues does this PR fix or reference and How to test this PR completed
• [ ] Relevant user documentation updated
• [ ] Relevant contributing documentation updated
• [ ] CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[openshift-ci[bot]]

Skipping CI for Draft Pull Request. If you want CI signal for your change, please convert it to an actual PR. You can still manually trigger a test run with /test all

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dkwon17

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[codecov[bot]]

Codecov Report

Merging #1565 (49ff5e4) into main (eaef8a4) will increase coverage by 0.02%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1565      +/-   ##
==========================================
+ Coverage   60.54%   60.56%   +0.02%     
==========================================
  Files          73       73              
  Lines        6303     6307       +4     
==========================================
+ Hits         3816     3820       +4     
  Misses       2147     2147              
  Partials      340      340              

Impacted Files	Coverage Δ
api/v2/checluster_types.go	30.43% <ø> (ø)
...eploy/dev-workspace-config/dev_workspace_config.go	90.90% <100.00%> (+0.71%)	:arrow_up:

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[openshift-merge-robot]

@dkwon17: PR needs rebase.

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[dkwon17]

Closing in favour of https://github.com/eclipse-che/che-operator/pull/1565