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🌱 Add a check to the Cluster webhook to ensure ClusterClass exists #5585

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killianmuldoon
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Signed-off-by: killianmuldoon kmuldoon@vmware.com

This change adds an additional check to the Cluster Webhook to ensure that a ClusterClass referenced by a cluster exists. If the ClusterClass does not exist the Cluster creation or update is rejected.

This check introduces an expected ordering in the creation and update of the ClusterClass and Cluster objects, and it adds a client to the webhook that is used to fetch the referenced ClusterClass from the API server on Cluster creation and update.

Related to #5537

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Nov 4, 2021
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@k8s-ci-robot k8s-ci-robot added size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. and removed size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Nov 5, 2021
@killianmuldoon
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This is now rebased on top of #5596 and shouldn't be merged before that PR. The most recent commit adds the clusterClassExists checks inline with the other validation checks.

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@sbueringer sbueringer left a comment

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I'll re-review once the other PR is merged

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@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Nov 8, 2021
@k8s-ci-robot k8s-ci-robot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Nov 8, 2021
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last round of nits from my side

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Signed-off-by: killianmuldoon <kmuldoon@vmware.com>
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Nov 9, 2021
@fabriziopandini
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/approve
/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Nov 9, 2021
@k8s-ci-robot k8s-ci-robot merged commit 6f28707 into kubernetes-sigs:main Nov 9, 2021
@k8s-ci-robot k8s-ci-robot added this to the v1.1 milestone Nov 9, 2021
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6 participants