Instance.proxy looked the domain up by its stored name. After a rename
or a name swap outside WebVirtCloud, an operation on one VM changed
another; after a VM was replaced under the same name, operations hit
the new VM.
wvmInstance takes the UUID and uses lookupByUUIDString, with no
fallback to the name: a missing UUID fails instead of picking another
domain. Every caller that has an Instance passes it: proxy, console,
quota, post-migration autostart and the VDI URL. Migration uses the
domain the proxy already resolved. getvvfile and the gstfsd requests
use the host's current name of that UUID.
Live tests cover a name swap and a VM replaced under the same name;
both fail on the previous code.
- Hash the root password with a random SHA-512 salt instead of the fixed
"$6$kgPoiREy".
- Talk to gstfsd through one helper with a 120 s socket timeout; an
unreachable daemon or a bad reply is an error message, not a 500.
- gstfsd refuses to listen on a non-loopback address unless
GSTFSD_ALLOW_REMOTE=1: it is an unauthenticated root service.
- gstfsd: encode replies (sendall(str) raised TypeError on Python 3, so
the success path never worked) and use octal chmod modes.
- README: what gstfsd does and how to allow it on a remote compute.
