The bouncestorage image hasn't been updated for 4 years and has this
message at the top of the docs:
This repository is outdated; please use dockerswiftaio/docker-swift instead.
However, dockerswiftaio/docker-swift hasn't been updated for 2 years.
Switch to openstackswift/saio instead, which is getting regular updates.
This requires some minor changes to one test, and how we start the
container.
On my system there needs to be a slight pause between stopping and
checking to see if SwiftAIO has stopped. Without the pause the tests fail for
a non-obvious reason.
Instead of using a magic sleep, re-use the retry logic that is used for
starting the test server.
Andrew Ruthven