* provider/scaleway: increase wait for server time
according to the scaleway community, shutdown/ startup might actually take an
hour. since a regular shutdown transfers data this is bound by the size of the
actual volumes in use.
https://community.online.net/t/solving-the-long-shutdown-boot-when-only-needed-to-attach-detach-a-volume/326
anyhow, 20 minutes seems quite optimistic, and we've seen some timeout errors in
the logs, too
* provider/scaleway: clear cache on volume attachment
the volume attachment errors quite often, and while I have no hard evidence
(yet) I guess it might be related to the cache that the official scaleway SDK
includes.
for now this is just a tiny experiment, clearing the cache when creating/
destroying volume attachments. let's see if this improves anything, really
* provider/scaleway: guard against attaching already attached volumes
* provider/scaleway: use cheaper instance types for tests
Scaleway bills by the hour and C2S costs much more than C1, since in the tests
we just spin up instances, to destroy them later on...
a422bf02f1