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Adam Zhang
ecac71ac65
* Enforce resource filters on cluster-wide items
When backups query all namespaces (wildcard or omitted includes),
the item collector retrieved resources in bulk, bypassing
per-namespace resource filter policies in Stage 1 collection.
This caused resources not listed in the policy to be backed up.
To preserve cluster-wide query performance while enforcing policy
rules, evaluate namespace exclusions, resource kind allowlists,
and label selectors in memory for each collected item.
Signed-off-by: Adam Zhang <adam.zhang@broadcom.com>
* Optimize in-memory resource filter checks
Optimize per-item filter evaluation in the item collector:
- Precalculate GroupResource string once per resource type
- Skip filter policy evaluation when no namespaced policies exist
- Restrict in-memory filtering to cluster-wide queries
- Cache consecutive namespace lookups across collected items
- Lazily extract resource labels only when selectors are present
Signed-off-by: Adam Zhang <adam.zhang@broadcom.com>
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Signed-off-by: Adam Zhang <adam.zhang@broadcom.com>
(cherry picked from commit 85c660612b)