Add transport URL secret rotation with consumer finalizer - #431
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Important
This repository does not receive automatic reviews because it has fewer than 10 stars. ⚙️ Run configurationConfiguration used: Central YAML (base), Organization UI (inherited) Review profile: CHILL Plan: Pro Plus Run ID: 📝 WalkthroughSummary by CodeRabbit
WalkthroughChangesWatcher transport secret rotation
Merge Risk: 🟡 Moderate · up to Watcher deletion does not currently remove the new transport-secret finalizers, which can leave generated Secrets stuck terminating and block cleanup. This bounded correctness issue should be fixed before merging. Sequence Diagram(s)sequenceDiagram
participant WatcherController
participant TransportURLSecret
participant WatcherServices
WatcherController->>TransportURLSecret: add consumer finalizer
WatcherController->>WatcherServices: wait for service readiness
WatcherController->>TransportURLSecret: finalize rotation
WatcherController->>WatcherController: update secret status references
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Inline comments:
In `@internal/controller/watcher_controller.go`:
- Around line 239-242: Update reconcileDelete to remove
watcher.TransportConsumerFinalizer from both status-tracked secrets and the
current TransportURL secrets, including when the current secret differs during
pending rotation; retain the existing ACConsumerFinalizer cleanup and ensure
deletion completes without leaving generated transport Secrets terminating.
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api/bases/watcher.openstack.org_watchers.yamlapi/go.modapi/v1beta1/watcher_types.goconfig/crd/bases/watcher.openstack.org_watchers.yamlgo.modinternal/controller/watcher_common.gointernal/controller/watcher_controller.gointernal/controller/watcherapi_controller.gointernal/controller/watcherapplier_controller.gointernal/controller/watcherdecisionengine_controller.gointernal/watcher/constants.go
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- internal/controller/watcher_common.go
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SeanMooney
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this is lookign good but i assume your workign on evntest or kuttl testing to verify this
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SeanMooney
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i would be fine wiht moving forward with this version.
we may consdier if we shuld have kuttl tests to actully do a rotation but for now i think this is sufficent
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Builds on "Correlate Watcher readiness with applied input" (openstack-k8s-operators#434), which adds AppliedInputSecretHash to the sub-CRs and releases the application- credential consumer finalizer only once every sub-service has provably rolled out. This commit extends the same guarantee to the RabbitMQ transport URL and notification transport URL secrets, so infra-operator cannot revoke a transport credential still in use by running pods. Changes: 1. Add a openstack.org/watcher-transport-consumer finalizer to the current transport URL secret (and the notification transport URL secret when notifications are enabled) early in reconcile, via object.ManageSecretConsumerFinalizer. Status.TransportURLSecret / Status.NotificationsTransportURLSecret are set for first-time setup only; during rotation they are updated solely by FinalizeSecretRotation. 2. At the end of reconcile, release the old secret's finalizer with object.FinalizeSecretRotation, guarded by the existing allServicesReady correlation (Generation == ObservedGeneration && AppliedInputSecretHash matches && sub-CR ready). The transport and AC secrets share the same guard, so nothing is released until every child is rolled out. 3. When notifications are disabled, remove the finalizer from the tracked notification secret and clear the status. 4. Use the lib-common statefulset.IsReadyForInput helper in the sub-CR controllers instead of the local statefulSetReadyForInput, and pin lib-common to the fork commit carrying IsReadyForInput / FinalizeSecretRotation while the lib-common PR is in review. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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What this does
When infra-operator rotates a RabbitMQ transport URL (creating a new secret and user), watcher must hold a consumer finalizer on the old secret until all its pods have rolled out with the new credentials. Without this, infra-operator cleans up the old RabbitMQ user while pods are still connected with the old credentials, causing message-bus outages. The same guarantee is needed for the notification transport URL and the application-credential (AC) secret.
Structure
AppliedInputSecretHashto the sub-CRs and releases the AC consumer finalizer only once every sub-service has provably rolled out (allServicesReady:Generation == ObservedGeneration && AppliedInputSecretHashmatches && sub-CR ready).Approach
Add a
openstack.org/watcher-transport-consumerfinalizer to the current transport URL secret (and the notification transport URL secret when notifications are enabled) early in reconcile, viaobject.ManageSecretConsumerFinalizer.Status.TransportURLSecret/Status.NotificationsTransportURLSecretare set for first-time setup only; during rotation they are updated solely byFinalizeSecretRotationat the end of reconcile.At the end of reconcile, release the old secret's finalizer with
object.FinalizeSecretRotation, guarded by the existingallServicesReadycorrelation. The transport, notification and AC secrets share the same guard, so nothing is released until every child is fully rolled out with the new credentials.When notifications are disabled, remove the finalizer from the tracked notification secret and clear the status.
Use the lib-common
statefulset.IsReadyForInputhelper in the sub-CR controllers instead of the localstatefulSetReadyForInput.Dependency
Uses the lib-common
IsReadyForInput/FinalizeSecretRotationhelpers (currently pinned via areplaceto the fork commit while the lib-common PR is in review).