674c8e7286
If a volume_type is not specified in a volume-create request, change I4da0c13b5b3f8174a30b8557f968d6b9e641b091 (introduced in Train) sets a default volume_type in the REST API layer. This prevents the selection logic in cinder.volume.flows.api.create_volume. ExtractVolumeRequestTask from being able to infer the appropriate volume_type from the source volume, snapshot, or image metadata, and has caused a regression where the created volume is of the default type instead of the inferred type. This patch removes setting the default volume_type in the REST API and modifies the selection code in ExtractVolumeRequestTask slightly to make sure a volume_type is always assigned in that function, and adds and revises some tests. Change-Id: I05915f2e32b1229ad320cd1c5748de3d63183b91 Closes-bug: #1879578
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