def wait_for_pods_and_verify(self):
"""
Wait for the pods to be created and verify only one pod is running
"""
# Wait for pods
for pods in TimeoutSampler(
360,
2,
func=pod.get_all_pods,
namespace=self.namespace,
selector=[self.name],
selector_label="name",
):
if len(pods) == self.replica_count:
break
pods_iter = cycle(pods)
# Wait for one pod to be in Running state
curr_pod = next(pods_iter)
sampler = TimeoutSampler(360, 2, curr_pod.get)
for pod_info in sampler:
if pod_info["status"]["phase"] == constants.STATUS_RUNNING:
self.running_pod = curr_pod
log.info(f"Pod {curr_pod.name} reached state Running.")
break
curr_pod = next(pods_iter)
sampler.func = curr_pod.get
pods.remove(self.running_pod)
pod_running_node = self.running_pod.get()["spec"]["nodeName"]
# Verify the other pods are not coming up Running
for pod_obj in pods:
try:
wait_for_resource_state(resource=pod_obj,
state=constants.STATUS_RUNNING,
timeout=10)
assert pod_obj.get()["spec"]["nodeName"] == pod_running_node, (
f"Unexpected: Pod {pod_obj.name} is in Running state. "
f"RWO PVC is mounted on pods which are on different nodes."
)
log.info(f"Expected: Pod {pod_obj.name} is Running. "
f"Pods which are running are on the same node "
f"{pod_running_node}")
except ResourceWrongStatusException:
log.info(f"Verified: Pod {pod_obj.name} is not in "
f"running state.")
def wait_for_pods_and_verify(self):
"""
Wait for both the pods to be created and verify only one pod is running
"""
# Wait for pods
for pods in TimeoutSampler(180,
2,
func=pod.get_all_pods,
namespace=self.namespace,
selector=[self.name],
selector_label='name'):
if len(pods) == 2:
break
pods_iter = cycle(pods)
# Wait for one pod to be in Running state
sampler = TimeoutSampler(180, 2, next(pods_iter).get)
for pod_info in sampler:
sampler.func = next(pods_iter).get
if pod_info['status']['phase'] == constants.STATUS_RUNNING:
self.running_pod = next(pods_iter)
break
# Verify the other pod is not coming up Running
try:
self.pod_not_running = next(pods_iter)
wait_for_resource_state(resource=self.pod_not_running,
state=constants.STATUS_RUNNING,
timeout=10)
# ResourceWrongStatusException exception should be raised in
# wait_for_resource_state. If not, raise UnexpectedBehaviour.
raise UnexpectedBehaviour(
f"Unexpected: Pod {self.pod_not_running.name} is in "
f"Running state")
except ResourceWrongStatusException:
log.info(f"Verified: Only one pod {self.running_pod.name} is in "
f"running state.")
