novox/hq 04-ISSUES/022: a consumer is a module on a machine, not a
machine. The mesh now writes <node>.<module>.secret and the provisioners
name the role and the access key after both.
The fixtures here write what the mesh writes, so they move with it —
that is the whole point of them, and a fixture that kept the old shape
would agree with the bug rather than catch it.
The object-store assertions are the ones that mattered most: one store
holds every bucket behind one endpoint, so isolation is a policy rather
than a property. One access key per machine meant every module on a node
shared it, and the policy confining each consumer to its own bucket
confined none of them.
Seven assertions against a real store, the important one being that a
consumer cannot reach another consumer's bucket — isolation here is a
policy somebody wrote rather than a boundary the product has.
The revocation test stages its own precondition. The first version
asserted a key left by an earlier test, and the rotation test had
already revoked it two tests early: the behaviour was correct and the
test was measuring residue. Its precondition assertion is what caught
that, rather than it passing green having verified nothing.
jschoubben