* EaR: Update ApiWorkload to validate encryption at-rest guarantees
Description
FDB encryption data at-rest guarantees if cluster is configured with feature
enabled, all data written to persistent disks shall be "encrypted". Given FDB
maintains multiple persistent storages during lifecycle of the data, the patch
proposes a scheme to validate the invariant via "simulation testing"
Patch proposes updating ApiCorrectness workload to do the following:
1. Client supplied params and/randomly enable the validation feature.
2. Validation when enabled, allows injecting a known "marker string"
to workload generated Key and Value data patterns.
3. On shutdown, if the validation is enabled, all test files are
scanned for the known "marker" pattern.
Simulation tests are already capable of doing the following:
1. Randomly select TenantMode (disabled/optional/required)
2. Randomly select EncryptionAtRestMode (cluster_aware/domain_aware)
Hence, the updates test all possible combinations are validated. Also,
'defaultTenant' is present to cover 'domain_aware' encryption use cases.
Testing
devRunCorrectness
devRetryCorrectness - ApiCorrectness & EncryptedBackupCorrectness
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