fix(ROSAENG-435): support PagerDuty incident lookup for HCP clusters

[fullsend-ai-coder]

Summary

• Adds HCP (Hosted Control Plane) cluster support to PagerDuty incident lookup in both osdctl cluster context and osdctl org context commands
• For HCP clusters, PD services are region-based rather than per-cluster, so the PD query uses the AWS region ID instead of the DNS base domain
• Incidents are filtered by matching the cluster's external UUID (not the internal OCM ID) against EventDetails in the first trigger log entry, ensuring only incidents for the target cluster are shown
• Classic cluster behavior is unchanged — filtering is only applied when a cluster ID is set

What changed

pkg/provider/pagerduty/pagerduty.go

• Added clusterID field and WithClusterID() builder method to the PD client
• Modified GetFiringAlertsForCluster() to request first_trigger_log_entries from PD and filter incidents by cluster ID when set
• Added incidentMatchesCluster() helper that checks cluster_id, clusterID, and cluster-id keys in EventDetails

cmd/cluster/context.go

• For HCP clusters, overrides baseDomain with the region ID for PD service lookup
• Passes externalClusterID to WithClusterID() (the external UUID that PD alerts reference)

cmd/org/context.go

• Updated NewPDClient function signature to accept clusterID parameter
• Detects HCP clusters and passes cluster.ExternalID() for incident filtering

Testing

• 25 PagerDuty provider unit tests pass (6 new tests for incidentMatchesCluster, 1 for WithClusterID, 4 for HCP filtering in GetFiringAlertsForCluster)
• 1 new test in cmd/org/context_test.go verifying NewPDClient passes both parameters
• All existing tests continue to pass — classic cluster behavior is not affected
• go vet and go build pass on all changed packages

---

Related to https://redhat.atlassian.net/browse/ROSAENG-435

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🤖 Finished Review · ✅ Success · Started 3:30 PM UTC · Completed 3:48 PM UTC

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Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $7.76

[fullsend-ai-review]

Risk Assessment: moderate (2/5)

Details

Moderate risk driven primarily by code age — all changed files are mature (last modified 55-1094 days ago). The change is medium-sized (406 lines across 5 files) with good test coverage (40% test file ratio). No protected paths, security-sensitive files, CI, or dependency changes. Bot author with prior contributions.

Previous run

Risk Assessment: low (1/5)

Details

Low-risk change: moderate line count but well-scoped to 5 files with good test coverage (40% test files), no protected paths or security-sensitive files touched, no dependency or CI changes, bot author with prior contributions, and changed files show low recent churn.

Previous run (2)

Risk Assessment: moderate (2/5)

Details

Small-to-medium change (5 files, 404 lines) adding HCP PagerDuty incident lookup support by a bot author. No protected paths, security-sensitive files, CI, or dependency changes. Good test coverage ratio (0.40). cmd/cluster/context.go has notable regression history but no recent churn. Overall risk remains moderate, consistent with prior assessment.

Previous run (3)

Risk Assessment: moderate (2/5)

Details

Small focused change (5 files, 296 lines) adding HCP PagerDuty incident lookup support by a bot author. No protected paths, no security-sensitive files, no CI or dependency changes. Good test coverage ratio (0.40). Most files stable for over a year but change scope is well-contained.

[fullsend-ai-review]

Review

Findings

Low

• [edge-case] pkg/provider/pagerduty/pagerduty.go — When EventDetails is nil, incidentMatchesCluster logs a warning to stderr with the incident number and title. For region-based PD services containing incidents for many clusters, nil EventDetails is the common case (incidents belonging to other clusters whose trigger log entries lack event payloads), not an exceptional one — this could produce excessive diagnostic output in HCP environments. Consider gating behind a verbose flag or removing the warning.

• [code-organization] cmd/org/context.go:211 — The HCP region-based detection logic (cluster.Hypershift().Enabled() && cluster.Region() != nil && cluster.Region().ID() != "") plus the baseDomain override is duplicated verbatim between cmd/cluster/context.go and cmd/org/context.go. Extracting a shared helper (e.g., IsHCPRegionBased(cluster) (baseDomain string, ok bool)) would reduce maintenance risk if the detection criteria change.

• [test-inadequate] cmd/org/context_test.go — TestNewPDClient_PassesClusterID verifies the function signature accepts both parameters but does not exercise the HCP detection path in FetchContext that determines when clusterID should be populated. The pkg/provider/pagerduty/pagerduty_test.go tests thoroughly cover the filtering logic itself (6 tests for incidentMatchesCluster, 4 for HCP filtering in GetFiringAlertsForCluster, 2 for GetHistoricalAlertsForCluster).

• [scope-coherence] pkg/provider/pagerduty/pagerduty.go:178 — The addition of incidents = incidents[:0] in GetHistoricalAlertsForCluster correctly fixes a pre-existing bug where incidents from previous service ID iterations leaked into subsequent iterations, inflating occurrence counts. This is a beneficial fix beyond the stated HCP scope.

Previous run

Review

Findings

Medium

• [error handling / output corruption] pkg/provider/pagerduty/pagerduty.go:143 — The fmt.Printf("Skipping incident %d (%s): does not match cluster %s\n", ...) calls in GetFiringAlertsForCluster (line 143) and GetHistoricalAlertsForCluster (line 210) write to stdout. Both osdctl cluster context -o json and osdctl org context -o json also write structured JSON to stdout. When HCP filtering occurs, these debug messages corrupt the JSON output for downstream consumers (e.g., jq, scripts). This is also inconsistent with the codebase logging pattern — the pagerduty package uses fmt.Printf only for genuine error conditions.
  Remediation: Replace fmt.Printf with fmt.Fprintf(os.Stderr, ...) or remove the debug logging entirely, since the filtering behavior is expected and validated by tests.

Low

• [test adequacy] cmd/org/context_test.go:113 — TestNewPDClient_PassesClusterID only verifies the function signature accepts two parameters. While pagerduty_test.go has thorough unit tests for incidentMatchesCluster and HCP filtering, there is no integration-level test verifying that FetchContext correctly detects HCP clusters and passes the region as baseDomain and externalID as clusterID.
  Remediation: Add an integration test for the FetchContext HCP detection path.

• [edge case] pkg/provider/pagerduty/pagerduty.go:158 — When EventDetails is nil in incidentMatchesCluster, the incident is silently filtered out. If PagerDuty doesn't populate EventDetails for certain incident types (e.g., incidents created via the UI rather than an integration), legitimate HCP incidents could be silently dropped with no indication.

• [duplicated-guard] cmd/cluster/context.go:198 — The guard o.cluster.Hypershift().Enabled() && o.cluster.Region() != nil && o.cluster.Region().ID() != "" appears twice in the same file (setup() and generateContextData()) and once in cmd/org/context.go. Computing the HCP check once in setup() and storing the result on contextOptions would reduce the maintenance surface.
  Remediation: Compute the HCP check once in setup() and store on contextOptions.

• [test-organization] pkg/provider/pagerduty/pagerduty_test.go:73 — The WithClusterID test is placed in the "Provider Functionality" block alongside mock-backed integration tests. The existing file structure separates builder/setter tests under "Client Creation".
  Remediation: Move the WithClusterID test under the "Client Creation" Describe block.

• [intent-tier-mismatch] — PR title uses the "fix" prefix but the change adds new HCP cluster support. While "fix" is defensible (making an existing feature work for a cluster type it previously didn't support), "feat" may be more accurate for changelog categorization.
  Remediation: Consider updating the PR title to use feat([ROSAENG-435](https://redhat.atlassian.net/browse/ROSAENG-435)).

• [scope-coherence] pkg/provider/pagerduty/pagerduty.go — The PR bundles two incidental pre-existing bug fixes (pagination offset reset in GetFiringAlertsForCluster, incidents slice accumulation in GetHistoricalAlertsForCluster) alongside the HCP feature. Both fixes are correct and closely related to the modified code paths.

• [architectural-coherence] cmd/org/context.go:41 — The NewPDClient signature change from one to two parameters is consistent with project patterns. If more parameters are needed in the future, consider refactoring to an options struct.

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Previous run (2)

Review

Findings

Medium

• [logic-error] pkg/provider/pagerduty/pagerduty.go:176 — In GetHistoricalAlertsForCluster, the incidents slice is declared outside the outer for loop and is never reset between iterations over pdServiceIDs. When processing multiple service IDs, incidents from all previous services accumulate and are re-counted for every subsequent service, producing inflated IncidentOccurrenceTracker counts. This is a pre-existing bug not introduced by this PR, but the PR touches this exact code path, making it a reasonable time to fix.
  Remediation: Add incidents = incidents[:0] or incidents = nil immediately after for _, pdServiceID := range pdServiceIDs {.

Low

• [edge-case] pkg/provider/pagerduty/pagerduty.go:157 — The incidentMatchesCluster function performs exact string equality checks on the cluster ID. No logging or metrics are emitted when incidents are filtered out, which could make debugging HCP incident visibility issues harder in production.

• [test-organization] pkg/provider/pagerduty/pagerduty_test.go:23 — The new incidentMatchesCluster tests are added as a separate top-level Describe block, while the existing test file uses a single top-level Describe that nests all tests. Consider moving them inside the existing block for consistency.
  Remediation: Move the incidentMatchesCluster tests inside the existing Describe("Tests the Pagerduty Provider", ...) block.

• [naming-convention] pkg/provider/pagerduty/pagerduty.go:51 — WithClusterID uses uppercase ID, while the existing WithTeamIdList uses lowercase Id. The new method follows Go naming conventions correctly (ID all-caps); the pre-existing WithTeamIdList is the one that deviates.

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Previous run (3)

Review

Findings

Medium

• [missing filtering] pkg/provider/pagerduty/pagerduty.go:134 — GetHistoricalAlertsForCluster does not apply cluster-ID filtering for HCP clusters. Since the same client (with clusterID set) is used for both GetFiringAlertsForCluster and GetHistoricalAlertsForCluster, historical alerts for HCP clusters will include incidents from ALL clusters in the region-based PD service, not just the target cluster. GetHistoricalAlertsForCluster would also need to request first_trigger_log_entries via the Includes option to make filtering possible.
  Remediation: Apply the same incidentMatchesCluster filtering in GetHistoricalAlertsForCluster when c.clusterID is set (and include first_trigger_log_entries in the options), or document that historical alerts intentionally show region-wide data for HCP.

Low

• [pagination bug] pkg/provider/pagerduty/pagerduty.go:106 — Pre-existing bug preserved by this PR: incidentListOffset is declared outside the outer for loop over pdServiceIDs and is never reset to 0 when iteration moves to the next service ID. When multiple service IDs are provided and the first service has paginated results, the second service's API call starts at a non-zero offset, potentially missing incidents.
  Remediation: Reset incidentListOffset to 0 at the start of each outer loop iteration.

• [inconsistent HCP detection] cmd/cluster/context.go:389 — In generateContextData(), the HCP check for setting the cluster ID uses only o.cluster.Hypershift().Enabled(), while setup() additionally guards with o.cluster.Region() != nil && o.cluster.Region().ID() != "". If an HCP cluster has no region, setup() would NOT override baseDomain, but generateContextData() would still call WithClusterID, enabling filtering against a baseDomain that holds the DNS domain.
  Remediation: Use the same compound condition in generateContextData().

• [scope-coherence] cmd/cluster/context.go:200 — baseDomain field is overloaded with the region ID for HCP clusters. Semantically baseDomain represents a DNS base domain but is repurposed as a PD service query string. Functional but could cause confusion if baseDomain is used elsewhere for DNS-related purposes.
  Remediation: Consider introducing a separate variable (e.g., pdServiceQuery) to distinguish between DNS base domain and PD service lookup key.

• [api-design-coherence] cmd/org/context.go:44 — NewPDClient function signature was changed to include clusterID as a parameter, while cmd/cluster/context.go uses the builder pattern directly via WithClusterID(). The two code paths use inconsistent approaches for threading the same value.

---

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[fullsend-ai-coder]

🤖 Finished Fix · ✅ Success · Started 3:49 PM UTC · Completed 4:05 PM UTC

Commit: fcf9c36 · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $2.01

[fullsend-ai-coder]

🔧 Fix agent — iteration 1 (bot-triggered)

Addressed 3 of 5 review findings with code fixes: added cluster-ID filtering to GetHistoricalAlertsForCluster for HCP clusters, fixed the pre-existing pagination offset bug in GetFiringAlertsForCluster, and made the HCP detection guard consistent between setup() and generateContextData(). Disagreed with 2 findings (scope-coherence and api-design-coherence) as out-of-scope refactoring suggestions. All 29 PagerDuty tests pass (2 new). All changed packages compile and pass go vet.

Fixed (3):

1. missing filtering (pkg/provider/pagerduty/pagerduty.go): Applied the same incidentMatchesCluster filtering in GetHistoricalAlertsForCluster when c.clusterID is set, and included first_trigger_log_entries in the Includes option to make filtering possible. Added two tests covering HCP filtering and classic (unfiltered) behavior.
2. pagination bug (pkg/provider/pagerduty/pagerduty.go): Reset incidentListOffset to 0 at the start of each outer loop iteration over pdServiceIDs in GetFiringAlertsForCluster, preventing the second service's API call from starting at a stale offset.
3. inconsistent HCP detection (cmd/cluster/context.go): Added Region() != nil && Region().ID() != "" guards to the HCP check in generateContextData() to match the compound condition used in setup(), ensuring WithClusterID is only called when baseDomain has been overridden to the region ID.

Disagreed (2):

1. scope-coherence: Introducing a separate pdServiceQuery variable is a refactoring suggestion beyond the scope of this PR. The baseDomain overloading is clearly documented with inline comments explaining the HCP behavior, and baseDomain is not used for DNS purposes after the override point. This change would touch multiple call sites across files for a cosmetic improvement.
2. api-design-coherence: The two code paths use different patterns for valid architectural reasons: cmd/cluster/context.go builds the PD client inline and has direct access to the builder, while cmd/org/context.go uses a function variable (NewPDClient) for testability and dependency injection. Making them consistent would require either removing the testable function variable pattern in org/context.go or wrapping the builder in cluster/context.go behind a function variable it doesn't need — both would be larger refactors beyond this PR's scope.

Tests: passed

Decision points

• Whether to fix the pre-existing pagination bug (alternatives: Fix it since it's in code already being modified, Leave it as out of scope since it's pre-existing; rationale: Fixed it because it's a trivial one-liner in code the PR already modifies, and the reviewer explicitly flagged it.)

---

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[fullsend-ai-review]

🤖 Finished Review · ✅ Success · Started 4:06 PM UTC · Completed 4:25 PM UTC

Commit: 04befce · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $6.97

[fullsend-ai-coder]

🤖 Finished Fix · ✅ Success · Started 4:26 PM UTC · Completed 4:36 PM UTC

Commit: 04befce · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $1.97

[fullsend-ai-coder]

🔧 Fix agent — iteration 2 (bot-triggered)

Fixed incidents slice accumulation bug in GetHistoricalAlertsForCluster, added debug logging for filtered incidents, and reorganized incidentMatchesCluster tests into the existing test structure. All 27 pagerduty tests and the org context test pass.

Fixed (3):

1. incidents slice not reset between service IDs in GetHistoricalAlertsForCluster (pkg/provider/pagerduty/pagerduty.go): Added incidents = incidents[:0] at the start of the outer for loop to reset the slice between service ID iterations, preventing inflated IncidentOccurrenceTracker counts
2. No logging when incidents are filtered out by incidentMatchesCluster (pkg/provider/pagerduty/pagerduty.go): Added fmt.Printf debug logging in both GetFiringAlertsForCluster and GetHistoricalAlertsForCluster when incidents are skipped due to cluster ID mismatch
3. incidentMatchesCluster tests in separate top-level Describe block (pkg/provider/pagerduty/pagerduty_test.go): Moved incidentMatchesCluster tests from a separate top-level Describe block into the existing 'Tests the Pagerduty Provider' Describe block as a Context under 'Provider Functionality'

Disagreed (1):

1. WithClusterID uses uppercase ID while WithTeamIdList uses lowercase Id: The reviewer explicitly notes that WithClusterID follows Go naming conventions correctly and WithTeamIdList is the one that deviates. Renaming WithTeamIdList is out of scope for this PR as it is a pre-existing public API and not part of this PR's changes.

Tests: passed

Decision points

• Whether to rename WithTeamIdList to WithTeamIDList for consistency (alternatives: Rename WithTeamIdList to follow Go conventions, Leave as-is since it is pre-existing and out of scope; rationale: Renaming would be a breaking change to an existing public API and is unrelated to HCP support. The reviewer acknowledged the new code is correct.)

---

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[fullsend-ai-review]

🤖 Finished Review · ✅ Success · Started 4:38 PM UTC · Completed 5:20 PM UTC

Commit: 5c96b53 · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high

[fullsend-ai-coder]

🤖 Finished Fix · ✅ Success · Started 5:21 PM UTC · Completed 5:43 PM UTC

Commit: 5c96b53 · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high · Cost: $2.73

[fullsend-ai-coder]

🔧 Fix agent — iteration 3 (bot-triggered)

Addressed 4 of 8 review findings with code changes: removed stdout-corrupting debug logging, added stderr warning for nil EventDetails edge case, deduplicated HCP guard in cmd/cluster/context.go, and moved WithClusterID test to correct describe block. Recorded reasoned disagreements for the remaining 4 findings (integration test scope, PR title convention, scope coherence observation, future architectural suggestion).

Fixed (4):

1. error handling / output corruption (pkg/provider/pagerduty/pagerduty.go): Removed fmt.Printf stdout debug logging from GetFiringAlertsForCluster and GetHistoricalAlertsForCluster that would corrupt JSON output when HCP filtering skips non-matching incidents
2. edge case: nil EventDetails silent drop (pkg/provider/pagerduty/pagerduty.go): Added fmt.Fprintf(os.Stderr, ...) warning in incidentMatchesCluster when EventDetails is nil, so incidents without EventDetails are no longer silently dropped — users see a diagnostic message on stderr
3. duplicated-guard (cmd/cluster/context.go): Added isHCPRegionBased field to contextOptions, computed once in setup(), and replaced the duplicated compound guard in generateContextData() with the stored boolean
4. test-organization: WithClusterID test placement (pkg/provider/pagerduty/pagerduty_test.go): Moved WithClusterID test from the Provider Functionality describe block to the Client Creation describe block, consistent with other builder/setter tests

Disagreed (4):

1. test adequacy: integration test for FetchContext HCP detection: Adding an integration test for FetchContext HCP detection requires mocking OCM cluster objects with Hypershift and Region builders, which is complex test infrastructure not present in cmd/org/context_test.go. The HCP filtering logic is thoroughly tested in pagerduty_test.go (6 unit tests for incidentMatchesCluster, 4 for HCP filtering in GetFiringAlertsForCluster, 2 for GetHistoricalAlertsForCluster). The FetchContext wiring is straightforward and already covered by the existing TestNewPDClient_PassesClusterID. An integration test would be a valuable follow-up but is out of scope for this PR.
2. intent-tier-mismatch: PR title fix vs feat: The fix prefix is defensible — the change makes an existing feature (PagerDuty incident lookup) work correctly for a cluster type (HCP) it previously did not support. Additionally, the fix agent cannot modify PR titles. This is a judgment call for the PR author.
3. scope-coherence: bundled pre-existing bug fixes: Informational observation acknowledged. The reviewer notes both fixes are correct and closely related to the modified code paths. No action required.
4. architectural-coherence: NewPDClient options struct: The current two-parameter signature is consistent with project patterns as the reviewer acknowledges. Refactoring to an options struct is a valid future consideration but out of scope for this PR.

Tests: passed

Decision points

• Remove stdout debug logging vs redirect to stderr (alternatives: Remove debug logging entirely, Redirect all skipped-incident messages to stderr; rationale: Removed the generic 'Skipping incident' messages entirely since filtering is expected behavior. Added stderr warning only for the nil EventDetails edge case, which is the one scenario that deserves operator visibility.)

---

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[fullsend-ai-review]

🤖 Finished Review · ✅ Success · Started 5:44 PM UTC · Completed 6:27 PM UTC

Commit: 24c9674 · View workflow run →

Runtime: claude · Model: opus → claude-opus-4-6 · Effort: high

Superseded by updated review

[RaphaelBut]

/ok-to-test

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