def __init__(self, agent, hostname):
self.region_string = calico_config.get_region_string()
workload_endpoint_prefix = datamodel_v3._build_key(
"WorkloadEndpoint",
datamodel_v3.get_namespace(self.region_string),
"",
)
this_host_prefix = (workload_endpoint_prefix +
hostname.replace('-', '--') + "-openstack-")
super(CalicoEtcdWatcher, self).__init__(this_host_prefix)
self.agent = agent
self.hostname = hostname
self.suppress_dnsmasq_updates = False
# Register the etcd paths that we need to watch.
self.register_path(workload_endpoint_prefix + "<name>",
on_set=self.on_endpoint_set,
on_del=self.on_endpoint_delete)
# Networks for which Dnsmasq needs updating.
self.dirty_networks = set()
# Also watch the etcd subnet trees: both the new region-aware
# one, and the old pre-region one, so as to support a VM
# renewing its DHCP lease while an upgrade is still in
# progress. When something in that subtree changes, the
# subnet watcher will tell _this_ watcher to resync.
self.v1_subnet_watcher = SubnetWatcher(self, datamodel_v1.SUBNET_DIR)
self.subnet_watcher = SubnetWatcher(
self, datamodel_v2.subnet_dir(self.region_string))
# Cache of the ports that we've asked Dnsmasq to handle, for each
# network ID.
self._last_dnsmasq_ports = {}
def test_etcd_watchers_init_with_conf_values(self):
agent = CalicoDhcpAgent()
self.assertEqual(
agent.etcd.prefix, "/calico/resources/v3/projectcalico.org/" +
"workloadendpoints/openstack/" + self.hostname.replace('-', '--') +
"-openstack-")
self.assertEqual(agent.etcd.v1_subnet_watcher.prefix,
datamodel_v1.SUBNET_DIR)
self.assertEqual(agent.etcd.subnet_watcher.prefix,
datamodel_v2.subnet_dir())
def test_host_config(self):
cfg.CONF.host = "my-special-hostname"
agent = CalicoDhcpAgent()
self.assertEqual(
agent.etcd.prefix, "/calico/resources/v3/projectcalico.org/" +
"workloadendpoints/openstack/" + "my--special--hostname" +
"-openstack-")
self.assertEqual(agent.etcd.v1_subnet_watcher.prefix,
datamodel_v1.SUBNET_DIR)
self.assertEqual(agent.etcd.subnet_watcher.prefix,
datamodel_v2.subnet_dir())
def test_region_config(self):
cfg.CONF.set_override('openstack_region',
'asia-central',
group='calico')
calico_config._reset_globals()
agent = CalicoDhcpAgent()
self.assertEqual(
agent.etcd.prefix, "/calico/resources/v3/projectcalico.org/" +
"workloadendpoints/openstack-region-asia-central/" +
self.hostname.replace('-', '--') + "-openstack-")
self.assertEqual(agent.etcd.v1_subnet_watcher.prefix,
datamodel_v1.SUBNET_DIR)
self.assertEqual(agent.etcd.subnet_watcher.prefix,
datamodel_v2.subnet_dir("region-asia-central"))
calico_config._reset_globals()
def get_all_from_etcd(self):
return etcdv3.get_prefix(datamodel_v2.subnet_dir(self.region_string))