def refresh_instances(self):
self.instances = Cluster.get_autoscaled_instances(self.gname)
self.public_ips = Cluster.get_public_ips_by_placement_group(self.gname)
self.public_hosts = Cluster.get_public_hostnames_by_placement_group(self.gname)
self.private_ips = Cluster.get_private_ips_by_placement_group(self.gname)
self.private_hosts = Cluster.get_private_hostnames_by_placement_group(self.gname)
