OCPBUGS-99492: NetworkPolicies should use numeric ports instead of named ports

[dobsonj]

https://redhat.atlassian.net/browse/OCPBUGS-99492

/cc @openshift/storage

Summary by CodeRabbit

• Bug Fixes
  • Updated DNS network access rules to explicitly allow TCP and UDP traffic on port 53.
  • Improved compatibility for DNS resolution by replacing named port references with the standard numeric port.

[openshift-merge-bot]

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[openshift-ci]

@dobsonj: GitHub didn't allow me to request PR reviews from the following users: openshift/storage.

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https://redhat.atlassian.net/browse/OCPBUGS-99492

/cc @openshift/storage

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[openshift-ci-robot]

@dobsonj: This pull request references Jira Issue OCPBUGS-99492, which is invalid:

• expected the bug to target the "5.0.0" version, but no target version was set

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

https://redhat.atlassian.net/browse/OCPBUGS-99492

/cc @openshift/storage

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: openshift/coderabbit/.coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 50275701-6e97-4590-b9cf-e069fec6b0ec

📥 Commits

Reviewing files that changed from the base of the PR and between 8ac4825 and a530735.

📒 Files selected for processing (2)

• manifests/09_network-policy-allow-to-dns.yaml
• manifests/09_network-policy-cso-allow-to-dns.yaml

---

Walkthrough

Both DNS egress NetworkPolicies now explicitly allow TCP and UDP traffic on numeric port 53 instead of named DNS port values.

Changes

DNS egress policy updates

Layer / File(s)	Summary
Use numeric DNS port 53 manifests/09_network-policy-allow-to-dns.yaml, manifests/09_network-policy-cso-allow-to-dns.yaml	Both manifests specify port 53 for TCP and UDP DNS egress rules.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 15

✅ Passed checks (15 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: replacing named DNS ports with numeric ports in NetworkPolicies.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Stable And Deterministic Test Names	✅ Passed	PASS: The PR only changes two NetworkPolicy YAML manifests; no Ginkgo test files or titles were added or modified.
Test Structure And Quality	✅ Passed	Only two manifest YAMLs changed; no Ginkgo test code was touched, so the test-quality check is not applicable.
Microshift Test Compatibility	✅ Passed	PR changes only two NetworkPolicy manifests; no Ginkgo e2e tests or MicroShift-unsupported APIs/features were added.
Single Node Openshift (Sno) Test Compatibility	✅ Passed	Only two NetworkPolicy manifests changed; no Go test files or Ginkgo specs were added or modified.
Topology-Aware Scheduling Compatibility	✅ Passed	Only NetworkPolicy egress DNS ports changed to numeric 53; no scheduling fields, replicas, affinities, selectors, or topology assumptions were added.
Ote Binary Stdout Contract	✅ Passed	Only two NetworkPolicy manifests changed; no process-level code or stdout logging was added.
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	Only two NetworkPolicy YAMLs changed; no Ginkgo e2e tests or connectivity code were added, so the check is not applicable.
No-Weak-Crypto	✅ Passed	PR only changes NetworkPolicy YAML to use DNS port 53/TCP+UDP; no weak-crypto primitives or secret comparisons appear.
Container-Privileges	✅ Passed	Only NetworkPolicy YAML changed; no privileged, hostPID/Network/IPC, SYS_ADMIN, or allowPrivilegeEscalation settings are present.
No-Sensitive-Data-In-Logs	✅ Passed	Changed files are only NetworkPolicy YAML; diff changes DNS ports from named values to numeric 53 with no logging or sensitive fields.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dobsonj

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[dobsonj]

/jira refresh

[openshift-ci-robot]

@dobsonj: This pull request references Jira Issue OCPBUGS-99492, which is valid. The bug has been moved to the POST state.

3 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target version (5.0.0) matches configured target version for branch (5.0.0)
• bug is in the state ASSIGNED, which is one of the valid states (NEW, ASSIGNED, POST)

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/jira refresh

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[dobsonj]

/retest

[openshift-ci]

@dobsonj: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/hypershift-e2e-aks	a530735	link	false	/test hypershift-e2e-aks
ci/prow/hypershift-aws-e2e-external	a530735	link	true	/test hypershift-aws-e2e-external
ci/prow/images	a530735	link	true	/test images

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