def test_node_affinity_with_required(self):
model = _constants.pod_with_node_affinity()
pod = Pod(model)
config = _utils.create_config()
k8s = K8sPod(config=config, name="yo")
k8s.model = pod
if _utils.is_reachable(config):
# ensure we have enough nodes
nodes = K8sNode(config=config, name="yo").list()
self.assertGreaterEqual(len(nodes), 3)
# tag the nodes
for i in range(len(nodes)):
node = nodes[i]
if i == 0:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az1'})
if i == 1:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az2'})
if i == 2:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az3'})
node.update()
nodes = K8sNode(config=config, name="yo").list()
for node in nodes:
self.assertIn('kubernetes.io/e2e-az-name', node.labels)
# create the pod
k8s.create()
# untag the nodes
for node in nodes:
node.labels.pop('kubernetes.io/e2e-az-name', None)
node.update()
pass
def create_node(config=None, name=None):
if config is None:
config = create_config()
obj = K8sNode(
config=config,
name=name
)
return obj
def test_pod_affinity_no_good_nodes(self):
model = _constants.pod_with_pod_affinity()
pod = Pod(model)
config = _utils.create_config()
k8s = K8sPod(config=config, name="yo")
k8s.model = pod
if _utils.is_reachable(config):
nodes = K8sNode(config=config, name="yo").list()
# untag all nodes
for node in nodes:
node.labels.pop('kubernetes.io/e2e-az-name', None)
node.update()
with self.assertRaises(TimedOutException):
# timeout because of required
k8s.create()
def test_pod_affinities(self):
config = _utils.create_config()
container = _utils.create_container(name="nginx", image="nginx:latest")
pod_s1 = _utils.create_pod(config=config, name="s1")
pod_s1.labels.update({'security': 'S1'})
pod_s1.node_selector = {'kubernetes.io/e2e-az-name': 'e2e-az1'}
pod_s1.add_container(container)
pod_s2 = _utils.create_pod(config=config, name="s2")
pod_s2.labels.update({'security': 'S2'})
pod_s2.node_selector = {'kubernetes.io/e2e-az-name': 'e2e-az2'}
pod_s2.add_container(container)
model = _constants.pod_with_pod_affinity()
pod = Pod(model)
config = _utils.create_config()
k8s = K8sPod(config=config, name="yo")
k8s.model = pod
if _utils.is_reachable(config):
# ensure we have enough nodes
nodes = K8sNode(config=config, name="yo").list()
if len(nodes) < 3:
self.skipTest(reason='Not enough nodes to perform test.')
else:
self.assertGreaterEqual(len(nodes), 3)
# tag the nodes
for i in range(len(nodes)):
node = nodes[i]
if i == 0:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az1'})
if i == 1:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az2'})
if i == 2:
node.labels.update(
{'kubernetes.io/e2e-az-name': 'e2e-az3'})
node.update()
# create the pods for affinity lookup
pod_s1.create()
pod_s2.create()
# create the pod with affinities
k8s.create()
pass
def cleanup_nodes():
ref = create_node(name="throwaway")
if is_reachable(ref.config.api_host):
node_pattern = re.compile(r'yo-')
_list = ref.list()
_filtered = filter(lambda x: node_pattern.match(x['metadata']['name']) is not None, _list)
while len(_filtered) > 1:
for p in _filtered:
try:
assert isinstance(p, dict)
node_name = p['metadata']['name']
n = K8sNode(config=ref.config, name=node_name).get()
n.delete()
except NotFoundException:
continue
_list = ref.list()
_filtered = filter(lambda x: node_pattern.match(x['metadata']['name']) is not None, _list)
def test_tolerations_timeout(self):
config = _utils.create_config()
container = _utils.create_container(name="nginx", image="nginx:latest")
pod = _utils.create_pod(config=config, name="yo")
pod.add_container(container)
key = "key"
value = "value"
effect = "NoSchedule"
if _utils.is_reachable(config):
nodes = K8sNode(config=config, name="yo").list()
for node in nodes:
node.taint(key=key, value=value, effect=effect)
with self.assertRaises(TimedOutException):
pod.create()
for node in nodes:
node.untaint(key=key, value=value)
def test_tolerations_noschedule(self):
config = _utils.create_config()
container = _utils.create_container(name="nginx", image="nginx:latest")
pod = _utils.create_pod(config=config, name="yo")
pod.add_container(container)
key = "key"
value = "value"
effect = "NoSchedule"
if _utils.is_reachable(config):
nodes = K8sNode(config=config, name="yo").list()
for node in nodes:
node.taint(key=key, value=value, effect=effect)
pod.add_toleration(key=key, value=value, effect=effect)
pod.create()
self.assertEqual(3, len(pod.tolerations))
for node in nodes:
node.untaint(key=key, value=value)
