feat: add chaos-disk workload (disk fill pressure)#55
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Implements the chaos-disk workload (#19) that uses fallocate/dd to fill a target mount point to a configurable percentage (default 90%) with fill/release cycles for sustained disk pressure simulation. Adds chaos-disk to DefaultRegistry, AllWorkloadNames, and updates registry and CLI tests to account for the new workload. Signed-off-by: Melvin Hillsman <mhillsma@redhat.com>
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Summary
chaos-diskworkload that usesfallocate(withddfallback) to fill a target mount point to a configurable percentage (default 90%), running fill/release cycles via a systemd service to simulate sustained disk pressureDefaultRegistryand updatesAllWorkloadNamesCloses #19
Details
New files:
internal/workloads/chaos_disk.go—ChaosDiskWorkloadstruct, constructor, cloud-init script + systemd unit, DataVolume/disk/volume methodsinternal/workloads/chaos_disk_test.go— 10 Ginkgo BDD specs covering name, script content, permissions, systemd unit, YAML validity, DataVolume, disks/volumes, service, resources, and runcmdUpdated files:
internal/workloads/registry.go— addedchaos-diskfactory and updatedAllWorkloadNamesinternal/workloads/registry_test.go— updated registry count, sorted list, error message, and added retrieval testcmd/virtwork/main_test.go— updated total VM count from 6 to 7