fix: back up stopped servers and bind quiesce to pod identity by Baylem · Pull Request #766 · GameplanePanel/Gameplane

Baylem · 2026-10-21T15:51:38Z

Backups requesting quiesce now recognize an already-stopped, fully drained server without calling its absent agent. Live attempts bind quiesce and cleanup to the original Pod UID, so a replacement pod cannot receive an older backup's save-off/save-on request. Starting a backup does not change suspend or idle intent.

The source proof and cleanup obligation survive operator restart and Backup deletion. Cleanup waits for copy workers to drain; confirmed original-process exit is reported separately from a successful unquiesce RPC. Disabled agents retain raw-copy behavior. Older agents fail a read-only identity preflight before mutation debt is recorded, so operator and agent should be upgraded together and existing pods allowed to roll before retrying affected copies.

Depends on #760 (included in this branch). Closes #716.

Validation: operator and agent production builds passed. Controller unit/envtest, agent-client/quiesce, and E2E test sources compiled without execution. Added CI coverage for idle/suspended copies, queued copies, stale reads, writer detection, process replacement and cleanup; the E2E drill creates and restores two backups while the game pod remains absent. Tests run only in CI under repository policy. Pod UID binding does not establish application-wide consistency or detect in-place game-container restarts.

Summary by CodeRabbit

New Features
- Backups can run on stopped game servers without starting them, while preserving their suspend setting.
- Backup, restore, and wipe operations now coordinate access to a game server and wait for prior work and cleanup to finish.
- Pod-bound identity checks protect quiesce and unquiesce operations; backup cleanup verifies the original process state.
Bug Fixes
- Protected game-server settings and backup ownership are preserved during updates and concurrent lifecycle changes.
- Restore cleanup waits for startup workloads to drain before releasing the target.
Documentation
- Expanded operator guidance for lifecycle operations, recovery, and troubleshooting.

Signed-off-by: Baylem <zelathis@gmail.com>

coderabbitai · 2026-10-21T15:56:14Z

Walkthrough

The operator now coordinates backups, restores, and wipes through shared GameServer lifecycle ownership. Backup preparation records workload and source identity, supports drained stopped sources, and binds quiesce cleanup to a Pod UID. Restore handling reserves targets and retains lifecycle exclusion during cleanup.

Changes

GameServer Lifecycle Operations

Layer / File(s)	Summary
Pod-bound agent identity and quiesce `agent/cmd/main.go`, `agent/internal/target/target.go`, `agent/internal/quiesce/`, `agent/specs.md`, `operator/internal/agent/`, `operator/cmd/main.go`, `operator/internal/controller/gameserver_controller.go`	The agent adds Pod-UID-guarded identity and quiesce routes. The operator client checks Pod identity and sends Pod-bound quiesce requests. The agent container receives its Pod UID through the Downward API.
Shared lifecycle ownership and workload fencing `operator/internal/controller/lifecycle_operation`, `operator/internal/controller/gameserver_`, `operator/internal/controller/helpers.go`, `operator/internal/controller/helpers_extra_test.go`, `operator/internal/controller/helpers_envtest_test.go`, `operator/api/v1alpha1/backup_types.go`, `api/internal/handlers/resources_annotations_test.go`, `operator/specs.md`, `docs/operator-operations.md`, `i18n/locales/en/app.json`, `operator/hack/condition-ids/main.go`	Backup, restore, and wipe operations use shared lifecycle ownership, with recovery and StatefulSet fencing. GameServer reconciliation, idle handling, restart, and wipe handling account for that ownership. The owner annotation is included in protected-annotation tests.
Backup preparation, copy admission, and cleanup `operator/internal/controller/backup_.go`, `operator/internal/controller/backup__test.go`, `operator/internal/controller/backup_*_envtest_test.go`, `operator/specs.md`, `test/e2e/backup_stopped_e2e_test.go`, `test/e2e/buckets.sh`	Backups validate and persist source identity before copy admission. Drained stopped sources skip quiesce RPCs; live-source quiesce and cleanup use the prepared Pod UID. Tests cover drain evidence, source replacement, cleanup ownership, and restorable copies from stopped servers.
Restore target reservation and cleanup `operator/internal/controller/restore_.go`, `operator/internal/controller/restore__test.go`, `operator/internal/controller/restore_*_envtest_test.go`, `operator/specs.md`	Restore reconciliation reserves targets through lifecycle ownership, including volume-snapshot startup. Unsuccessful cleanup retains exclusion until the target is stopped and drained.

Event Stream Role-Scope Test

Layer / File(s)	Summary
Trigger and verify scoped stream events `test/e2e/api_events_roles_scope_e2e_test.go`	The test triggers resource updates while reading event streams and matches events to the specific template or server. It cancels and joins the trigger worker before returning.

RCON Pipe-Frame Test Coordination

Layer / File(s)	Summary
Synchronize empty-frame response `agent/internal/rcon/nuclearoption_test.go`	The test server waits for the client’s response deadline before sending an empty frame, or exits when the test context is canceled.

Build Image CI Timeout

Layer / File(s)	Summary
Increase image-build timeout `.github/workflows/ci.yaml`	The build-images job timeout changes from 15 to 30 minutes.

Server Creation Internationalization Context

Layer / File(s)	Summary
Use optional internationalization context `web/src/routes/CreateServer.tsx`	`PickTemplate` now obtains the optional internationalization context with `useOptionalIntl`.

Priority: ⬆️ High

Estimated code review effort: 5 (Critical) | ~120 minutes

Change: Bug fix · Severity of issue fixed: Medium

Suggested labels: type: feature, type: test, type: ci, type: docs

Merge Risk: 🟡 Moderate · up to ff4d4

A wipe that follows an interrupted restore can stall indefinitely while the old server keeps running. Fix this before merging. Optimistic-lock conflicts in idle and restart handling will also surface as reconcile errors and noisy logs instead of quiet retries.

Pre-merge checks: 3 · 2

Failed checks: 2 warnings

Check name	Status	Explanation	Resolution
Out of Scope Changes check		The whole-PR summary shows several changes with no concrete connection to `#716` or to the backup stopped-target and identity-binding objectives: 1. web/src/routes/CreateServer.tsx: `PickTemplate` now …	Remove the unrelated hunks from this PR, or move them to separate pull requests: (a) the `useOptionalIntl` change in web/src/routes/CreateServer.tsx; (b) the event-stream changes in test/e2e/api_events_roles_scope_e2e_test.go; (c) the `Retr…
Docstring Coverage		Docstring coverage is 30.95% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 84 functions across 41 files. (5 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 3 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title "fix: back up stopped servers and bind quiesce to pod identity" matches the main changes. The changeset lets an already-stopped, drained GameServer be backed up without contacting its absent…
Linked Issues check		Directly linked issue `#716` is open, so its coding requirements apply. Stopped-target path [`#716`]: backup_preparation.go (head) admits an already-stopped source only when the StatefulSet has zero desi…

Full details: Title check

Explanation

The title "fix: back up stopped servers and bind quiesce to pod identity" matches the main changes. The changeset lets an already-stopped, drained GameServer be backed up without contacting its absent agent. It also binds quiesce and unquiesce operations to the original Pod UID through a new identity preflight (/v1/pods/{uid}/identity) and pod-bound routes. The title names both primary themes. It is 61 characters and 11 words, within a concise single-sentence range.

Full details: Linked Issues check

Explanation

Directly linked issue #716 is open, so its coding requirements apply.

Stopped-target path [#716]: backup_preparation.go (head) admits an already-stopped source only when the StatefulSet has zero desired and observed replicas, no zero-status replica count, and no other live writer or restore-target user. The check uses the backup API reader (uncached, per the reader name and call sites; the reader definition was not read). Preparation records target UID, workload UID, workload generation, and outcome already-stopped. Stopped copies carry no pod UID, so the stopped path does not call the agent. The summary states that suspend and idle intent is preserved and that stopped copies skip quiesce and unquiesce.

Durable ownership first [#716]: the file states that preparation runs only after the shared owner and StatefulSet fence are held.

Identity binding [#716]: live copies record the original pod UID. Quiesce and unquiesce use pod-bound calls (callBackupQuiesce). A replacement pod or changed workload generation fails the Backup with errBackupSourceChanged. backupQuiesceProcessGone treats a timeout or same-UID terminating pod as not proven gone, which meets the requirement that an HTTP timeout alone does not release protection.

Live unreachable agent [#716]: the summary states that an unavailable agent after live preparation fails the Backup unless quiesce was already attempted or unsupported. Cleanup waits for copy workers to drain before release.

CI coverage [#716]: the summary lists new tests in backup_stopped_test.go, lifecycle_operation_test.go, restore startup cleanup tests, and an e2e test for stopped copies. Existing quiesce and finalizer tests are retained. These tests were not executed in this review.

Limits: the PR description states that Pod UID binding does not detect in-place game-container restarts. The issue requires protection against pod replacement, which this PR covers. The Restore and Wipe lifecycle work is assessed under the out-of-scope check.

Full details: Out of Scope Changes check

Explanation

The whole-PR summary shows several changes with no concrete connection to #716 or to the backup stopped-target and identity-binding objectives:

web/src/routes/CreateServer.tsx: PickTemplate now calls useOptionalIntl. This is a UI change unrelated to backup preparation. The diff blob was unavailable, so the content rests on the summary.
test/e2e/api_events_roles_scope_e2e_test.go: the event-stream test now patches templates and servers during streams and checks event-kind visibility. This tests API event roles and does not test backup quiesce.
operator/internal/controller/networkcapture_envtest_test.go: the user-stop envtest now uses RetryOnConflict. This concerns network capture and does not relate to backups.
agent/internal/rcon/nuclearoption_test.go: the pipe-frame harness now synchronizes empty-response frames with the response deadline. This is an RCON client test harness change. It is unrelated to the pod-bound quiesce routes, unless the PR author links it to a quiesce test dependency.
.github/workflows/ci.yaml: the build-images timeout increases from 15 to 30 minutes. This is a CI administrative change unrelated to #716.

The PR also widens the lifecycle work. The summary shows shared lifecycle ownership changes in restore_lifecycle.go, restore_volumesnapshot.go, gameserver_wipe.go, gameserver_wipe_guard.go, gameserver_restart.go, and gameserver_idle.go. #716 names a 'shared lifecycle exclusion follow-up' as a separate item, and docs/operator-operations.md states that several related changes are tracked separately. The PR description says #760 is included. The reviewed evidence does not show whether these restore and wipe changes belong to #760 or to the follow-up. This question is not the basis of the FAIL.

Resolution

Remove the unrelated hunks from this PR, or move them to separate pull requests: (a) the useOptionalIntl change in web/src/routes/CreateServer.tsx; (b) the event-stream changes in test/e2e/api_events_roles_scope_e2e_test.go; (c) the RetryOnConflict change in operator/internal/controller/networkcapture_envtest_test.go; (d) the pipe-frame harness change in agent/internal/rcon/nuclearoption_test.go, unless the author shows a quiesce test dependency; (e) the build-images timeout change in .github/workflows/ci.yaml. Then confirm in the PR description whether the restore, wipe, idle, and restart lifecycle changes are delivered by #760. If they are not, split them into the shared lifecycle exclusion follow-up named in #716.

Full details: Docstring Coverage

Explanation

Docstring coverage is 30.95% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 84 functions across 41 files. (5 skipped: 5 unsupported.)

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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Signed-off-by: Baylem <zelathis@gmail.com>

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Actionable comments posted: 2

🪄 Fix comments: Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
Review comments at @operator/internal/controller/gameserver_idle.go:
- Line 363: Update Reconcile to detect optimistic-lock conflicts returned by
reconcileIdle and desiredReplicas before logging, and return a requeue result
without an error for conflicts. Preserve the existing logging and error return
behavior for all other errors.

Review comments at @operator/internal/controller/gameserver_wipe_guard.go:
- Around line 168-172: Update ensureWipeGuard so claiming an existing guard does
not report a change that blocks workload reconciliation; still propagate claim
errors. In reconcileWipe, check for pending lifecycle recovery before creating a
wipe Job and defer the wipe until recovery completes, allowing desiredReplicas
and reconcileStatefulSet to scale the workload down. Add a test verifying a full
Reconcile scales down before starting a wipe when recovery is pending.

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ℹ️ Review info

⚙️ Run configuration

Source mode: Auto
Repository: GameplanePanel/Gameplane
Branch: master
File: .coderabbit.yaml
Commit: df1e371
Layers: Repository YAML
Review profile: CHILL
Plan: Advanced
Run ID: 235577a3-c71a-4c4f-9b6b-7f285db21985

📥 Commits

Reviewing files that changed from the base of the PR and between df1e371 and ff4d4fc.

📒 Files selected for processing: 46

.github/workflows/ci.yaml
agent/cmd/main.go
agent/internal/quiesce/quiesce_test.go
agent/internal/rcon/nuclearoption_test.go
agent/internal/target/target.go
agent/specs.md
api/internal/handlers/resources_annotations_test.go
docs/operator-operations.md
i18n/locales/en/app.json
operator/api/v1alpha1/backup_types.go
operator/cmd/main.go
operator/hack/condition-ids/main.go
operator/internal/agent/client.go
operator/internal/agent/client_test.go
operator/internal/controller/backup_controller.go
operator/internal/controller/backup_envtest_test.go
operator/internal/controller/backup_forget_envtest_test.go
operator/internal/controller/backup_forget_test.go
operator/internal/controller/backup_guard.go
operator/internal/controller/backup_guard_test.go
operator/internal/controller/backup_preparation.go
operator/internal/controller/backup_stopped_test.go
operator/internal/controller/backup_volumesnapshot.go
operator/internal/controller/gameserver_controller.go
operator/internal/controller/gameserver_idle.go
operator/internal/controller/gameserver_restart.go
operator/internal/controller/gameserver_wipe.go
operator/internal/controller/gameserver_wipe_guard.go
operator/internal/controller/helpers.go
operator/internal/controller/helpers_envtest_test.go
operator/internal/controller/helpers_extra_test.go
operator/internal/controller/lifecycle_operation.go
operator/internal/controller/lifecycle_operation_envtest_test.go
operator/internal/controller/lifecycle_operation_test.go
operator/internal/controller/networkcapture_envtest_test.go
operator/internal/controller/restore_controller.go
operator/internal/controller/restore_lifecycle.go
operator/internal/controller/restore_startup_cleanup_test.go
operator/internal/controller/restore_volumesnapshot.go
operator/internal/controller/restore_volumesnapshot_dispatch_test.go
operator/internal/controller/restore_volumesnapshot_requeue_test.go
operator/specs.md
test/e2e/api_events_roles_scope_e2e_test.go
test/e2e/backup_stopped_e2e_test.go
test/e2e/buckets.sh
web/src/routes/CreateServer.tsx

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🧰 Additional context used

📚 Code guidelines: 2

CLAUDE.md — configured
.specify/memory/constitution.md — configured

📓 Path-based instructions: 16

CRITICAL: After editing CRD Go types in this file, the SAME commit MUST include: operator/api/v1alpha1/zz_generated.deepcopy.go (regenerated) operator/config/crd/*.yaml (regenerated) operator/config/rbac/*.yaml (regenerated) charts/gameplan...