Only add disk support topologies if StorageClass parameter is true

[julianKatz]

What type of PR is this?
/kind feature

What this PR does / why we need it:

This PR makes the disk topology feature only add a disk support label to PV NodeAffinity if a new StorageClass parameter is specified: use-allowed-disk-topology: true.

The benefit of this is that GKE can enable the --disk-topology=true flag without immediately changing PDCSI's behavior. The feature becomes available, but not enabled. Customers can then choose to enable the feature when they are ready, plus they gain the granularity of enabling it for specific disk products at a time. Since most customers need this for Hyperdisk usage, that allows them to target the functionality to their use case.

I've manually tested this feature. See the steps recorded here.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Only add disk support topologies if StorageClass parameter is true

[k8s-ci-robot]

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

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: julianKatz
Once this PR has been reviewed and has the lgtm label, please assign amacaskill for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[julianKatz]

/ok-to-test

[mattcary]

This should have a release note as it adds a user-visible feature.

[tonyzhc]

Can you add an e2e test in test/e2e/tests/single_zone_e2e_test.go as well?

[sunnylovestiramisu]

Is this at least manually end to end tested on GCE clusters? Maybe add the test cases you did in the description.

[julianKatz]

Is this at least manually end to end tested on GCE clusters? Maybe add the test cases you did in the description.

Added! Find them here and also in the description.

[julianKatz]

This should have a release note as it adds a user-visible feature.

Is this more than what's contained in the PR description? I have the release-note label and I'm looking for PRs that show changes to a separate file but not finding any.

[julianKatz]

test run for comparison: https://prow.k8s.io/view/gs/kubernetes-ci-logs/pr-logs/pull/kubernetes-sigs_gcp-compute-persistent-disk-csi-driver/2089/pull-gcp-compute-persistent-disk-csi-driver-e2e/1925356347314933760

[julianKatz]

/retest