OCPBUGS-105875: fix(hcco): run kas-connection-checker as non-root - #9296
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Pipeline controller notification For optional jobs, comment This repository is configured in: LGTM mode |
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Skipping CI for Draft Pull Request. |
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@matlaj: This pull request references Jira Issue OCPBUGS-105875, which is valid. The bug has been moved to the POST state. 3 validation(s) were run on this bug
The bug has been updated to refer to the pull request using the external bug tracker. DetailsIn response to this:
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📝 WalkthroughWalkthroughThe KAS connection checker deployment no longer requests the Suggested reviewers: 🚥 Pre-merge checks | ✅ 11✅ Passed checks (11 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
Comment |
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@matlaj: This pull request references Jira Issue OCPBUGS-105875, which is valid. 3 validation(s) were run on this bug
DetailsIn response to this:
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 openshift-eng/jira-lifecycle-plugin repository. |
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Actionable comments posted: 1
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Inline comments:
In
`@control-plane-operator/hostedclusterconfigoperator/controllers/resources/resources.go`:
- Around line 1801-1802: Update the deployment annotation handling around
deployment.Spec.Template.ObjectMeta.Annotations to delete only the
openshift.io/required-scc entry while preserving all unrelated annotations,
including when reconciling pre-existing deployments. Add or update the
reconciliation test to verify a second annotation remains after the update.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Central YAML (inherited)
Review profile: CHILL
Plan: Enterprise
Run ID: 26b17f5c-fc61-4765-aeef-98d7eb949233
📒 Files selected for processing (2)
control-plane-operator/hostedclusterconfigoperator/controllers/resources/resources.gocontrol-plane-operator/hostedclusterconfigoperator/controllers/resources/resources_test.go
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #9296 +/- ##
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+ Coverage 45.73% 45.74% +0.01%
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Files 781 781
Lines 97837 97858 +21
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+ Hits 44744 44765 +21
Misses 50024 50024
Partials 3069 3069
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/verified by verifyKASCheckerSecurityContext, @matlaj I deployed a hosted cluster with this change and confirmed the UID on the |
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@matlaj: This PR has been marked as verified by DetailsIn response to this:
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 openshift-eng/jira-lifecycle-plugin repository. |
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/auto-cc |
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/lgtm |
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Scheduling tests matching the |
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/retest |
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Konflux fails with
And Konflux has a big red banner at the top warning everyone about a certain version of it being deprecated. The failures are unrelated to the PR and should just be retested when the repo-wide configuration is fixed. |
Test Resultse2e-aws
e2e-aks
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The Deployment set no securityContext, and kube-system is exempt from both SCC and Pod Security admission, so nothing assigned a UID and the cli image ran as root. The workload only reads the ServiceAccount token (mode 0644) and curls an endpoint, so it needs none of those privileges. The openshift.io/required-scc annotation was inert in kube-system, and once a UID is pinned it becomes a hazard: if that exemption ever changed, restricted-v2 (MustRunAsRange) would reject UID 1000 as outside the namespace uid-range and the checker would fail admission. Pin RunAsUser to 1000 at the pod level and add the restricted container security context (no privilege escalation, read-only rootfs, RunAsNonRoot, drop ALL capabilities), matching konnectivity-agent, which solves the same problem in the same namespace. Clear the required-scc annotation by setting the annotation map to nil rather than dropping the assignment, so it is also removed from Deployments created by earlier versions. Extend the unit tests to assert the security context, invert the annotation assertion, and add the stale annotation to the pre-existing Deployment fixture so the upgrade path is exercised. Signed-off-by: Máté Lajkó <mate.lajko@ibm.com> Commit-Message-Assisted-by: Claude (via Claude Code) Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
708445b to
159a8b2
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/lgtm |
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Scheduling tests matching the |
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/verified by verifyKASCheckerSecurityContext, @matlaj I deployed a hosted cluster with this change and confirmed the UID on the kas-connection-checker pods. |
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@matlaj: This PR has been marked as verified by DetailsIn response to this:
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 openshift-eng/jira-lifecycle-plugin repository. |
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/hold Revision 159a8b2 was retested 3 times: holding |
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/retest-required |
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/hold cancel The failures were all capacity related. Test passed during a quiet time on the weekend |
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@matlaj: all tests passed! Full PR test history. Your PR dashboard. DetailsInstructions 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-sigs/prow repository. I understand the commands that are listed here. |
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@matlaj: Jira Issue Verification Checks: Jira Issue OCPBUGS-105875 Jira Issue OCPBUGS-105875 has been moved to the MODIFIED state and will move to the VERIFIED state when the change is available in an accepted nightly payload. 🕓 DetailsIn response to this:
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 openshift-eng/jira-lifecycle-plugin repository. |
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/cherry-pick release-4.22 |
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@TwoDCube: #9296 failed to apply on top of branch "release-4.22": DetailsIn response to this:
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/cherry-pick release-5.0 |
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@matlaj: new pull request created: #9582 DetailsIn response to this:
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What this PR does / why we need it:
The Deployment set no securityContext, and kube-system is exempt from both SCC and Pod Security admission, so nothing assigned a UID and the cli image ran as root.
The workload only reads the ServiceAccount token (mode 0644) and curls an endpoint, so it needs none of those privileges.
The openshift.io/required-scc annotation was inert in kube-system, and once a UID is pinned it becomes a hazard: if that exemption ever changed, restricted-v2 (MustRunAsRange) would reject UID 1000 as outside the namespace uid-range and the checker would fail admission.
Pin RunAsUser to 1000 at the pod level and add the restricted container security context (no privilege escalation, read-only rootfs, RunAsNonRoot, drop ALL capabilities), matching konnectivity-agent, which solves the same problem in the same namespace.
Clear the required-scc annotation by setting the annotation map to nil rather than dropping the assignment, so it is also removed from Deployments created by earlier versions.
Extend the unit tests to assert the security context, invert the annotation assertion, and add the stale annotation to the pre-existing Deployment fixture so the upgrade path is exercised.
Which issue(s) this PR fixes:
Fixes OCPBUGS-105875
Special notes for your reviewer:
Checklist:
Signed-off-by: Máté Lajkó mate.lajko@ibm.com
Commit-Message-Assisted-by: Claude (via Claude Code)
Co-Authored-By: Claude Opus 5 noreply@anthropic.com
Summary by CodeRabbit