def test_key_for_config(self):
self.assertEqual(key_for_config("ConfigValue"),
"/calico/v1/config/ConfigValue")
def test_key_for_config(self):
self.assertEqual(key_for_config("ConfigValue"), "/calico/v1/config/ConfigValue")
def provide_felix_config(self):
"""provide_felix_config
Specify the prefix of the TAP interfaces that Felix should
look for and work with. This config setting does not have a
default value, because different cloud systems will do
different things. Here we provide the prefix that Neutron
uses.
"""
LOG.info("Providing Felix configuration")
# First create the ClusterGUID, if it is not already set.
cluster_guid_key = datamodel_v1.key_for_config('ClusterGUID')
try:
cluster_guid = self.client.read(cluster_guid_key).value
LOG.info('ClusterGUID is %s', cluster_guid)
except etcd.EtcdKeyNotFound:
# Generate and write a globally unique cluster GUID. Write it
# idempotently into the datastore. The prevExist=False creates the
# value (safely with CaS) if it doesn't exist.
LOG.info('ClusterGUID not set yet (%s)', cluster_guid_key)
guid = uuid.uuid4()
guid_string = guid.get_hex()
try:
self.client.write(cluster_guid_key,
guid_string,
prevExist=False)
except etcd.EtcdAlreadyExist:
LOG.info('ClusterGUID is now set - another orchestrator or' +
' Neutron server instance must have just written it')
pass
# Read other config values that should exist. We will write them only
# if they're not already (collectively) set as we want them.
prefix = None
reporting_enabled = None
ready = None
iface_pfx_key = datamodel_v1.key_for_config('InterfacePrefix')
reporting_key = datamodel_v1.key_for_config('EndpointReportingEnabled')
try:
prefix = self.client.read(iface_pfx_key).value
reporting_enabled = self.client.read(reporting_key).value
ready = self.client.read(datamodel_v1.READY_KEY).value
except etcd.EtcdKeyNotFound:
LOG.info('%s values are missing', datamodel_v1.CONFIG_DIR)
prefixes = prefix.split(',') if prefix else []
if 'tap' not in prefixes:
prefixes.append('tap')
prefix_new = ','.join(prefixes)
# Now write the values that need writing.
if prefix != prefix_new:
LOG.info('%s -> %s', iface_pfx_key, prefix_new)
self.client.write(iface_pfx_key, prefix_new)
if reporting_enabled != "true":
LOG.info('%s -> true', reporting_key)
self.client.write(reporting_key, 'true')
if ready != 'true':
# TODO(nj) Set this flag only once we're really ready!
LOG.info('%s -> true', datamodel_v1.READY_KEY)
self.client.write(datamodel_v1.READY_KEY, 'true')
def provide_felix_config(self):
"""provide_felix_config
Specify the prefix of the TAP interfaces that Felix should
look for and work with. This config setting does not have a
default value, because different cloud systems will do
different things. Here we provide the prefix that Neutron
uses.
"""
LOG.info("Providing Felix configuration")
# First create the ClusterGUID, if it is not already set.
cluster_guid_key = datamodel_v1.key_for_config('ClusterGUID')
try:
cluster_guid = self.client.read(cluster_guid_key).value
LOG.info('ClusterGUID is %s', cluster_guid)
except etcd.EtcdKeyNotFound:
# Generate and write a globally unique cluster GUID. Write it
# idempotently into the datastore. The prevExist=False creates the
# value (safely with CaS) if it doesn't exist.
LOG.info('ClusterGUID not set yet (%s)', cluster_guid_key)
guid = uuid.uuid4()
guid_string = guid.get_hex()
try:
self.client.write(cluster_guid_key,
guid_string,
prevExist=False)
except etcd.EtcdAlreadyExist:
LOG.info('ClusterGUID is now set - another orchestrator or' +
' Neutron server instance must have just written it')
pass
# Read other config values that should exist. We will write them only
# if they're not already (collectively) set as we want them.
prefix = None
reporting_enabled = None
ready = None
iface_pfx_key = datamodel_v1.key_for_config('InterfacePrefix')
reporting_key = datamodel_v1.key_for_config('EndpointReportingEnabled')
try:
prefix = self.client.read(iface_pfx_key).value
reporting_enabled = self.client.read(reporting_key).value
ready = self.client.read(datamodel_v1.READY_KEY).value
except etcd.EtcdKeyNotFound:
LOG.info('%s values are missing', datamodel_v1.CONFIG_DIR)
prefixes = prefix.split(',') if prefix else []
if 'tap' not in prefixes:
prefixes.append('tap')
prefix_new = ','.join(prefixes)
# Now write the values that need writing.
if prefix != prefix_new:
LOG.info('%s -> %s', iface_pfx_key, prefix_new)
self.client.write(iface_pfx_key, prefix_new)
if reporting_enabled != "true":
LOG.info('%s -> true', reporting_key)
self.client.write(reporting_key, 'true')
if ready != 'true':
# TODO(nj) Set this flag only once we're really ready!
LOG.info('%s -> true', datamodel_v1.READY_KEY)
self.client.write(datamodel_v1.READY_KEY, 'true')
