def download(self, temp_ver, store_metadata=True):
"""
Retrieve the given template version
Args:
temp_ver (TemplateVersion): template version to retrieve
store_metadata (bool): If set to ``False``, will not refresh the
local metadata with the retrieved one
Returns:
None
"""
dest = self._prefixed(temp_ver.name)
temp_dest = '%s.tmp' % dest
with utils.LockFile(dest + '.lock'):
# Image was downloaded while we were waiting
if os.path.exists(dest):
return
temp_ver.download(temp_dest)
if store_metadata:
with open('%s.metadata' % dest, 'w') as f:
utils.json_dump(temp_ver.get_metadata(), f)
sha1 = utils.get_hash(temp_dest)
if temp_ver.get_hash() != sha1:
raise RuntimeError(
'Image %s does not match the expected hash %s' % (
temp_ver.name,
sha1,
))
with open('%s.hash' % dest, 'w') as f:
f.write(sha1)
with log_utils.LogTask('Convert image', logger=LOGGER):
result = utils.run_command([
'qemu-img',
'convert',
'-O',
'raw',
temp_dest,
dest,
], )
os.unlink(temp_dest)
if result:
raise RuntimeError(result.err)
def save(self):
with LogTask('Save nets'):
for net in self._nets.values():
net.save()
with LogTask('Save VMs'):
for vm in self._vms.values():
vm.save()
spec = {
'nets': self._nets.keys(),
'vms': self._vms.keys(),
}
with LogTask('Save env'):
with open(self.virt_path('env'), 'w') as f:
utils.json_dump(spec, f)
def save(self):
with LogTask('Save nets'):
for net in self._nets.values():
net.save()
with LogTask('Save VMs'):
for vm in self._vms.values():
vm.save()
spec = {
'nets': self._nets.keys(),
'vms': self._vms.keys(),
}
with LogTask('Save env'):
with open(self.virt_path('env'), 'w') as f:
utils.json_dump(spec, f)
def save(self):
with open(self._env.virt_path('net-%s' % self.name()), 'w') as f:
utils.json_dump(self._spec, f)