nodes = super(ComputeNodeDriver, self).list_nodes()
for n in nodes:
if not n.size:
- n.size = self.sizes[n.extra["instance_type"]]
+ n.size = self.sizes()[n.extra["instance_type"]]
n.extra['arvados_node_size'] = n.extra.get('tags', {}).get('arvados_node_size')
return nodes