Run PodSecurityPolicy E2E test in parallel

[nicknovitski]

Previously, this test modified a ClusterRole used by every test. It had to be run serially, with a special teardown function that restored the state of the ClusterRole for any other serial tests.

Now (with #4055), every test gets its own cluster role, which means this test can be safely run in parallel with all the others, without any special teardown.

Also, since it was the only test which required serial execution, we can delete the ginkgo -focus "[Serial]" step.

[k8s-ci-robot]

Hi @nicknovitski. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[aledbf]

@nicknovitski please don't change the test/e2e-image/e2e.sh script. Revert that and this LGTM

[nicknovitski]

Sure, I can see the benefit of that.

[aledbf]

/ok-to-test

[codecov-io]

Codecov Report

Merging #4133 into master will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4133      +/-   ##
==========================================
+ Coverage   57.76%   57.79%   +0.03%     
==========================================
  Files          87       87              
  Lines        6459     6459              
==========================================
+ Hits         3731     3733       +2     
+ Misses       2296     2295       -1     
+ Partials      432      431       -1

Impacted Files	Coverage Δ
internal/ingress/metric/collectors/process.go	90.42% <0%> (+2.12%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update bf11e2e...e1958b8. Read the comment docs.

[aledbf]

/lgtm
/approve

[aledbf]

@nicknovitski thanks!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aledbf, nicknovitski

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

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [aledbf]

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