🐛 test: retry GetOwnerGraph in owner references test on certificate errors

[chrischdi]

What this PR does / why we need it:

When upgrading CAPI providers using clusterctl (as done in clusterctl upgrade tests):

• We delete the provider except the CRD (to preserve existing CRs)
  • This includes the Certificate which is used for validating, mutating and conversion webhooks.
• Afterwards we apply the provider again including a new Certificate CR
• This leads to cert-manager issuing a new certificate
• And cert-manager's ca-injector to inject the CA of the certificate into the ValidatingWebhookConfiguration, MutatingWebhookConfiguration and CRD (for the conversion webhook)

Injecting the CA into all CRDs takes some time. Our clusterctl upgrade tests immediately tries to query objects to e.g. verify that no unexpected rollouts happened.

This fails because querying objects might return from the kube-apiserver with the error x509: certificate signed by unknown authority when it tried to call the conversion webhook.

(Because the clusterctl upgrade introduced a new storageVersion (v1beta1) and kube-apiserver reads objects in their stored version from etcd (e.g. v1alpha4) and converts it to v1beta1 using the conversion webhook.)

The introduced code ensures that conversion webhooks work for all provider related CRDs by:

• Listing all provider CRDs
• Doing a list of the CRs of the CRD in all served versions

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):

Addresses flaky tests in: #9688

Note: testing at #10193

/area e2e-testing

[chrischdi]

/retitle 🌱 Wait for conversion-webhooks to be ready in clusterctl upgrade tests

[chrischdi]

/hold Need to check a failure occurence https://prow.k8s.io/view/gs/kubernetes-jenkins/pr-logs/pull/kubernetes-sigs_cluster-api/10193/pull-cluster-api-e2e-blocking-release-1-5/1762437570274267136

[chrischdi]

/test help

[k8s-ci-robot]

@chrischdi: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test pull-cluster-api-build-main
• /test pull-cluster-api-e2e-blocking-main
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• /test pull-cluster-api-e2e-conformance-main
• /test pull-cluster-api-e2e-dualstack-and-ipv6-main
• /test pull-cluster-api-e2e-main
• /test pull-cluster-api-e2e-mink8s-main
• /test pull-cluster-api-e2e-upgrade-1-29-1-30-main
• /test pull-cluster-api-test-main
• /test pull-cluster-api-test-mink8s-main
• /test pull-cluster-api-verify-main

The following commands are available to trigger optional jobs:

• /test pull-cluster-api-apidiff-main

Use /test all to run the following jobs that were automatically triggered:

• pull-cluster-api-apidiff-main
• pull-cluster-api-build-main
• pull-cluster-api-e2e-blocking-main
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In response to this:

/test help

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[chrischdi]

/hold Need to check a failure occurence prow.k8s.io/view/gs/kubernetes-jenkins/pr-logs/pull/kubernetes-sigs_cluster-api/10193/pull-cluster-api-e2e-blocking-release-1-5/1762437570274267136

/hold cancel

Changed to not use ListKind but Kind instead.

[chrischdi]

/test pull-cluster-api-e2e-main

[fabriziopandini]

/lgtm
/approve

Feel free to unhold when you have finished validation on #10193

[fabriziopandini]

/hold

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 51c4f9b26a9ac2cc60c75e7cdbe600fac4b0db40

[chrischdi]

/retitle 🌱 [WIP] Wait for conversion-webhooks to be ready in clusterctl upgrade tests

/hold issue still occurs in tests 🤔

[chrischdi]

/retitle 🌱 test: retry GetOwnerGraph in owner references test on certificate errors

/hold issue still occurs in tests 🤔

[fabriziopandini]

Nice one!
/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: de86e79a78fade7ddaaadef0b6c2b7beb0104a07

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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• OWNERS [fabriziopandini]

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[chrischdi]

/hold cancel

[chrischdi]

/unhold

[chrischdi]

/cherry-pick release-1.6

[chrischdi]

/cherry-pick release-1.5

[chrischdi]

/cherry-pick release-1.4

[k8s-infra-cherrypick-robot]

@chrischdi: #10201 failed to apply on top of branch "release-1.5":

Applying: test: retry GetOwnerGraph when having certificate issues
Using index info to reconstruct a base tree...
M	test/framework/ownerreference_helpers.go
Falling back to patching base and 3-way merge...
Auto-merging test/framework/ownerreference_helpers.go
CONFLICT (content): Merge conflict in test/framework/ownerreference_helpers.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 test: retry GetOwnerGraph when having certificate issues
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release-1.5

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/test-infra repository.

[k8s-infra-cherrypick-robot]

@chrischdi: #10201 failed to apply on top of branch "release-1.4":

Applying: test: retry GetOwnerGraph when having certificate issues
Using index info to reconstruct a base tree...
M	test/framework/ownerreference_helpers.go
Falling back to patching base and 3-way merge...
Auto-merging test/framework/ownerreference_helpers.go
CONFLICT (content): Merge conflict in test/framework/ownerreference_helpers.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 test: retry GetOwnerGraph when having certificate issues
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release-1.4

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/test-infra repository.

[k8s-infra-cherrypick-robot]

@chrischdi: new pull request created: #10217

In response to this:

/cherry-pick release-1.6

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/test-infra repository.