integration: Replace scsi_debug with loop devices - #507
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coriolis-replicator refuses loop devices as exportable block devices by default. The integration tests' fake source / destination providers used scsi_debug to work around that. scsi_debug backs every host added under a given module load with the same dev_size_mb, so tests needing bigger devices (OS morphing, LUKS) had to unload / reload the kernel module around them. This essentially means that the tests have to run sequentially on the same host. Loop devices are backed by an individually-sized sparse file per device, so this constraint goes away. The test export provider now starts the replicator with -allow-loop-devices=true. The test suite has been updated to use loop devices instead of scsi_debug devices. Updated the vendored replicator binary, which now accepts the -allow-loop-devices flag.
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coriolis-replicatorrefuses loop devices as exportable block devices by default. The integration tests' fake source / destination providers usedscsi_debugto work around that.scsi_debugbacks every host added under a given module load with the samedev_size_mb, so tests needing bigger devices (OS morphing, LUKS) had to unload / reload the kernel module around them. This essentially means that the tests have to run sequentially on the same host.Loop devices are backed by an individually-sized sparse file per device, so this constraint goes away. The test export provider now starts the replicator with
-allow-loop-devices=true.The test suite has been updated to use loop devices instead of
scsi_debugdevices.Updated the vendored replicator binary, which now accepts the
-allow-loop-devicesflag.