Two defects of the same class — the WAL-archive S3 prefix (serverName)
changing or defaulting differently between components:
Recovery default regression (review blocker): native CNPG defaulted an
absent externalClusters serverName to the entry name (= bootstrap.oldName),
but the barman-cloud plugin defaults it to the NEW cluster's name, so a
legacy-flow restore with bootstrap.serverName unset would read the wrong
S3 prefix (hard failure, or silently restoring another cluster's data).
The chart now always emits serverName, defaulting to bootstrap.oldName.
Live-cluster serverName flip (found by the gated postgres backup e2e on a
real cluster): the chart renders spec.plugins without serverName
(effective prefix = cluster name) while a strategy template may name a
different one; the driver's ForceOwnership patch then flipped the prefix
mid-stream, splitting the WAL archive across two prefixes — the WAL
holding the backup's start was lost between them and the restore failed
with "WAL not found". The driver now preserves the live Cluster's
effective serverName (explicit parameter, or the cluster name when the
plugin is attached without one) and only applies the strategy's value to
a Cluster with no plugin attached; both charts pin serverName explicitly,
and the example strategy no longer sets one.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Signed-off-by: Andrey Kolkov <androndo@gmail.com>
Review follow-ups (cozystack#3300):
- Lifecycle/leak: applyClusterPluginBackup now sets an ownerReference from the
driver-created barmancloud.cnpg.io/ObjectStore to its cnpg.io/Cluster, so
Kubernetes garbage-collects it when the Cluster is deleted (tenant app
teardown or the RestoreJob purge). In the platform useSystemBucket flow the
chart does not render this ObjectStore, so previously it was orphaned in the
tenant namespace. Drop the now-accurate-only 'delete' verb on objectstores
from the driver RBAC (GC handles removal; the driver never deletes it) and
correct the RBAC comment that falsely claimed the purge deletes it.
- Diagnostics/comments: the RestoreJob WAL-archive-deadline failure message and
several doc comments still told operators to check spec.backup.barmanObjectStore
/ externalClusters[].barmanObjectStore, fields no longer emitted after the
migration. Point them at the barman-cloud plugin (spec.plugins + ObjectStore,
externalClusters[].plugin) instead so they don't mislead during an incident.
- Test: TestApplyClusterPluginBackup_PatchesExistingCluster now asserts the
ObjectStore carries an ownerReference to the Cluster (kind/name/uid).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Andrey Kolkov <androndo@gmail.com>
Address review feedback on the repeat in-place restore fix:
- Make the freshness discriminator strict (creationTimestamp > StartedAt) so
an exact tie resolves to "not fresh" and the caller purges, matching the
function's stated conservative default; a fresh Cluster is always created
well after StartedAt so this never misclassifies the status-write-race path.
- Document why a wall-clock timestamp comparison was chosen over recording the
purged Cluster's UID on the TargetPurged condition (the UID approach leans on
the same status write the race path assumes can fail).
- Add a reconcile-level regression test that drives reconcileCNPGRestore end to
end with a fake client: a stale leftover recovery Cluster from a prior restore
is purged, and a Cluster this restore just re-created is not re-purged. This
covers the actual call site where #3311 lived, not just the pure helpers.
Signed-off-by: Ivan Okhotnikov <xorokhotnikov@gmail.com>
A repeat in-place PostgreSQL RestoreJob into an already-restored target
silently no-opped: the destructive purge was skipped because the live
Cluster still carried spec.bootstrap.recovery left over from the previous
restore, and the re-purge guard mistook that for a freshly-recovered
Cluster produced by this restore's own purge. The job then reported
Succeeded while the PVC, disk, and data were never touched.
Tell the two apart by the Cluster's creationTimestamp relative to the
RestoreJob's StartedAt: only a recovery Cluster created at/after StartedAt
is treated as this restore's own and skipped; one that predates StartedAt
is leftover from an earlier completed restore and is purged so the restore
re-bootstraps from the backup.
Signed-off-by: Ivan Okhotnikov <xorokhotnikov@gmail.com>
