OCPEDGE-2979: Add Pacemaker Alert Agents API definitions by vimauro · Pull Request #3041 · openshift/api

vimauro · 2026-09-16T09:16:28Z

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openshift-merge-bot · 2026-09-16T09:16:31Z

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openshift-ci-robot · 2026-09-16T09:16:33Z

@vimauro: This pull request references OCPEDGE-2979 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the story to target the "5.1.0" version, but no target version was set.

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openshift-ci · 2026-09-16T09:16:35Z

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openshift-ci · 2026-09-16T09:16:37Z

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Reviewing files that changed from the base of the PR and between 84bf332 and 5a4e160.

📒 Files selected for processing (3)

etcd/README.md
etcd/v1/types_pacemakercluster.go
etcd/v1alpha1/types_pacemakercluster.go

🚧 Files skipped from review as they are similar to previous changes (1)

etcd/README.md

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📝 Walkthrough

Walkthrough

The v1 and v1alpha1 APIs represent alert agents as optional node resources named TaintAlertAgent and UntaintAlertAgent. These resources use Healthy, Enabled, and Operational conditions. The previous cluster-level alert-agent condition and standalone alertAgentScripts status were removed. Validation tests and documentation now cover conditional resource requirements. The linter exclusion was updated.

Suggested reviewers: jaypoulz

Priority: ⬇️ Low

Merge Risk: ⚪ Minimal · up to 5a4e1

Alert-agent status is represented as optional per-node resources with documented validation and test coverage, with no remaining identified production-impacting risk.

🚥 Pre-merge checks | ✅ 14 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	No pull request description was provided, so its relationship to the changeset cannot be assessed.	Add a brief description that summarizes the Pacemaker Alert Agents API changes, including the resource model, conditions, validation, and status reasons.

✅ Passed checks (14 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: adding Pacemaker Alert Agents API definitions.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2…
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	The pull request adds only static test titles: for example, “Should accept alert-agent resources with only the conditions required for alert agents” and “Should reject an alert-agent resource missing …
Test Structure And Quality	✅ Passed	PASS. The pull request adds declarative YAML `onUpdate` cases, not direct Ginkgo test code. The shared unchanged harness provides `BeforeEach`, `AfterEach` cleanup for created resources and CRDs, and …
Microshift Test Compatibility	✅ Passed	The pull request adds declarative YAML API validation fixtures and generated API files. The diff adds no Ginkgo constructs such as It, Describe, Context, or When, and adds no e2e test code or MicroShi…
Single Node Openshift (Sno) Test Compatibility	✅ Passed	The pull request adds no Ginkgo e2e tests. The only test-path changes are declarative PacemakerCluster YAML validation fixtures, and the remaining changes are API types, generated schemas, documentati…
Topology-Aware Scheduling Compatibility	✅ Passed	PASS: The PR changes PacemakerCluster API types, CRD/OpenAPI generated files, documentation, and validation fixtures. The added YAML objects are only `PacemakerCluster` objects. The diff adds no Deplo…
Ote Binary Stdout Contract	✅ Passed	The PR changes API declarations, validation metadata, generated schemas, documentation, and YAML fixtures. The authoritative diff adds no fmt/log/klog stdout writes and no main, init, TestMain, or Gin…
Ipv6 And Disconnected Network Test Compatibility	✅ Passed	PASS: The pull request adds declarative YAML API-validation fixtures and API definitions. It adds no Ginkgo e2e tests or Ginkgo test declarations. The IPv4 addresses in the fixtures are static status-…
No-Weak-Crypto	✅ Passed	The reviewed range changes Pacemaker API type declarations, validation markers, generated schemas, documentation, and YAML tests. The added-line scan found no MD5, SHA1, DES, 3DES, RC4, Blowfish, ECB,…
Container-Privileges	✅ Passed	No changed line introduces a flagged container privilege. The added test fixtures are PacemakerCluster custom resources, and the CRD changes only update alert-agent resource schema and validation. Add…
No-Sensitive-Data-In-Logs	✅ Passed	The pull request changes API types, schemas, generated documentation, and validation tests. The authoritative diff adds no logging calls, logger imports, or output statements. Added-line review found …

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openshift-ci · 2026-09-16T09:17:50Z

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jaypoulz

I propose we evaluate an entirely different approach.
• Drop top-level status.alertAgents unless a concrete consumer needs a cluster-scoped per-agent list.
• Reuse nodes[].resources[] and extend PacemakerClusterResourceName for the two alert scripts.
• Reuse the existing conditions field. If aggregate health plus explanation is sufficient, use Healthy with alert-agent-specific reasons for the 8 required conditions.
• Add explicit Configured/ScriptPresent condition types by adding explicit reasons for Enabled (reason: ScriptConfigured) and Operational (ScriptPresent) while documenting alert-agent-specific reasons.
• The shared resource type still requires the eight Pacemaker condition types. Prefer conditional validation for alert-script entries; e.g. things like Managed might be true by default when configured, but may also need alert-agent specific reasons. Enabled is interesting because it might not be possible to "disable" alert agent script. Consider each condition separately.
• Keep rolling failure history—“last 10 runs” or “last 5 minutes”—in metrics or a future status summary. Considering reusing "Active" to raise ScriptFailing when such a condition is met. I believe this is the condition that tracks failing etcd and kubelet.

Outside of this PR:
• PHC should fail closed when expected alert-agent entries are missing, with distinct reasons such as AlertAgentNotRegistered and AlertAgentStatusNotObserved. This is because ALL TNF clusters are expected to have these. This can be raised through the existing PacemakerHealthy condition in etcd as new reasons.

vimauro · 2026-09-17T16:14:12Z

/label tide/merge-method-squash

fonta-rh · 2026-09-18T07:59:56Z

I propose we evaluate an entirely different approach. • Drop top-level status.alertAgents unless a concrete consumer needs a cluster-scoped per-agent list. • Reuse nodes[].resources[] and extend PacemakerClusterResourceName for the two alert scripts. • Reuse the existing conditions field. If aggregate health plus explanation is sufficient, use Healthy with alert-agent-specific reasons for the 8 required conditions. • Add explicit Configured/ScriptPresent condition types by adding explicit reasons for Enabled (reason: ScriptConfigured) and Operational (ScriptPresent) while documenting alert-agent-specific reasons. • The shared resource type still requires the eight Pacemaker condition types. Prefer conditional validation for alert-script entries; e.g. things like Managed might be true by default when configured, but may also need alert-agent specific reasons. Enabled is interesting because it might not be possible to "disable" alert agent script. Consider each condition separately. • Keep rolling failure history—“last 10 runs” or “last 5 minutes”—in metrics or a future status summary. Considering reusing "Active" to raise ScriptFailing when such a condition is met. I believe this is the condition that tracks failing etcd and kubelet.

Outside of this PR: • PHC should fail closed when expected alert-agent entries are missing, with distinct reasons such as AlertAgentNotRegistered and AlertAgentStatusNotObserved. This is because ALL TNF clusters are expected to have these. This can be raised through the existing PacemakerHealthy condition in etcd as new reasons.

I'll add on top of the "Outside of this PR" that any new metrics or conditions that we add, we'll probably want to cover with a TNF specific alert

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Inline comments:
In `@etcd/README.md`:
- Around line 43-47: Update the README’s Two Node OpenShift with Fencing
resource list to remove FencingAgent, since it is not a valid
PacemakerClusterResourceName; retain the existing Kubelet, Etcd,
TaintAlertAgent, and UntaintAlertAgent entries and state that fencing agents are
tracked separately in the node’s fencingAgents array.
- Around line 174-181: Update the alert-agent status documentation table to
remove the `Unknown`/`Pending` entry for `Healthy`, unless an existing API
definition for `ResourceHealthyReasonPending` is added consistently to both API
versions; keep the documented pending reasons for `Enabled` and `Operational`
unchanged.

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📥 Commits

Reviewing files that changed from the base of the PR and between 81f3674 and 84bf332.

⛔ Files ignored due to path filters (8)

etcd/v1/zz_generated.crd-manifests/0000_25_etcd_01_pacemakerclusters.crd.yaml is excluded by !**/zz_generated.crd-manifests/*
etcd/v1/zz_generated.featuregated-crd-manifests/pacemakerclusters.etcd.openshift.io/DualReplica.yaml is excluded by !**/zz_generated.featuregated-crd-manifests/**
etcd/v1/zz_generated.swagger_doc_generated.go is excluded by !**/zz_generated*
etcd/v1alpha1/zz_generated.crd-manifests/0000_25_etcd_01_pacemakerclusters.crd.yaml is excluded by !**/zz_generated.crd-manifests/*
etcd/v1alpha1/zz_generated.featuregated-crd-manifests/pacemakerclusters.etcd.openshift.io/DualReplica.yaml is excluded by !**/zz_generated.featuregated-crd-manifests/**
etcd/v1alpha1/zz_generated.swagger_doc_generated.go is excluded by !**/zz_generated*
openapi/generated_openapi/zz_generated.openapi.go is excluded by !openapi/**, !**/zz_generated*
openapi/openapi.json is excluded by !openapi/**

📒 Files selected for processing (5)

etcd/README.md
etcd/v1/tests/pacemakerclusters.etcd.openshift.io/DualReplica.yaml
etcd/v1/types_pacemakercluster.go
etcd/v1alpha1/tests/pacemakerclusters.etcd.openshift.io/DualReplica.yaml
etcd/v1alpha1/types_pacemakercluster.go

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jaypoulz · 2026-09-22T13:57:54Z

                              type: object
                            maxItems: 16
-                            minItems: 8
+                            minItems: 3


So this is the consequence of proceeding with this approach; the required conditions differ between object types. Etcd and Kubelet get the original 8; which can be enforced in https://github.com/openshift/api/pull/3041/changes#diff-4c7b620fc1ca29e23492f1a4611be9eca01d7bf82884f72b2c52687d248e0f7dR595-R600 but we'd also need a similar enforcement for the required alertagent entries for the 3 required for them.

jaypoulz · 2026-09-22T13:59:53Z

+	// ResourceEnabledReasonPending means an alert-agent script resource's CIB registration has not yet
+	// been observed this run by the status collector. Used only with status "Unknown". This is expected
+	// to be temporary, e.g. immediately after upgrade or before the first successful CIB collection.
+	ResourceEnabledReasonPending = "Pending"


I'm not sure I understand when the pending state actually happens. Is it during initialization?

yes I thought on having it during the first setup/upgrade. Happy to remove it if you think it's an overhead

We can rely on AlertAgentNotRegistered / ScriptMisconfigured instead

Add Alert Agents api definitions

29f43c8

openshift-ci-robot added the jira/valid-reference Indicates that this PR references a valid Jira ticket of any type. label Sep 16, 2026

openshift-ci Bot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Sep 16, 2026

openshift-ci Bot added the size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. label Sep 16, 2026

fonta-rh mentioned this pull request Sep 16, 2026

OCPEDGE-2810: add CIB-backed fail-count fields to PacemakerClusterResourceStatus #3042

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jaypoulz reviewed Sep 16, 2026

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Addressed PR comments and reduced custom fields count

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openshift-ci Bot added the tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges. label Sep 17, 2026

Fold alert-agent status into existing resource conditions

84bf332

coderabbitai Bot reviewed Sep 22, 2026

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Comment thread etcd/README.md

Comment thread etcd/README.md

vimauro added 3 commits September 22, 2026 13:20

Addressed CR comments and added more consts

5a4e160

updated .golangci.yaml

10f3d53

restored original .golangci.yaml

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jaypoulz reviewed Sep 22, 2026

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