def delete_node_and_devices_on_it(self, node_id):
heketi_ops.heketi_node_disable(self.h_node, self.h_url, node_id)
heketi_ops.heketi_node_remove(self.h_node, self.h_url, node_id)
node_info = heketi_ops.heketi_node_info(
self.h_node, self.h_url, node_id, json=True)
for device in node_info['devices']:
heketi_ops.heketi_device_delete(
self.h_node, self.h_url, device['id'])
heketi_ops.heketi_node_delete(self.h_node, self.h_url, node_id)
def test_heketi_metrics_validation_after_node(self, condition):
"""Validate heketi metrics after adding and remove node"""
# Get additional node
additional_host_info = g.config.get("additional_gluster_servers")
if not additional_host_info:
self.skipTest(
"Skipping this test case as additional gluster server is "
"not provied in config file")
additional_host_info = list(additional_host_info.values())[0]
storage_hostname = additional_host_info.get("manage")
storage_ip = additional_host_info.get("storage")
if not (storage_hostname and storage_ip):
self.skipTest(
"Config options 'additional_gluster_servers.manage' "
"and 'additional_gluster_servers.storage' must be set.")
h_client, h_server = self.heketi_client_node, self.heketi_server_url
initial_node_count, final_node_count = 0, 0
# Get initial node count from prometheus metrics
metric_result = self._fetch_metric_from_promtheus_pod(
metric='heketi_nodes_count')
initial_node_count = reduce(
lambda x, y: x + y,
[result.get('value')[1] for result in metric_result])
# Switch to storage project
openshift_ops.switch_oc_project(
self._master, self.storage_project_name)
# Configure node before adding node
self.configure_node_to_run_gluster(storage_hostname)
# Get cluster list
cluster_info = heketi_ops.heketi_cluster_list(
h_client, h_server, json=True)
# Add node to the cluster
heketi_node_info = heketi_ops.heketi_node_add(
h_client, h_server,
len(self.gluster_servers), cluster_info.get('clusters')[0],
storage_hostname, storage_ip, json=True)
heketi_node_id = heketi_node_info.get("id")
self.addCleanup(
heketi_ops.heketi_node_delete,
h_client, h_server, heketi_node_id, raise_on_error=False)
self.addCleanup(
heketi_ops.heketi_node_remove,
h_client, h_server, heketi_node_id, raise_on_error=False)
self.addCleanup(
heketi_ops.heketi_node_disable,
h_client, h_server, heketi_node_id, raise_on_error=False)
self.addCleanup(
openshift_ops.switch_oc_project,
self._master, self.storage_project_name)
if condition == 'delete':
# Switch to openshift-monitoring project
openshift_ops.switch_oc_project(
self.ocp_master_node[0], self._prometheus_project_name)
# Get initial node count from prometheus metrics
for w in waiter.Waiter(timeout=60, interval=10):
metric_result = self._fetch_metric_from_promtheus_pod(
metric='heketi_nodes_count')
node_count = reduce(
lambda x, y: x + y,
[result.get('value')[1] for result in metric_result])
if node_count != initial_node_count:
break
if w.expired:
raise exceptions.ExecutionError(
"Failed to get updated node details from prometheus")
# Remove node from cluster
heketi_ops.heketi_node_disable(h_client, h_server, heketi_node_id)
heketi_ops.heketi_node_remove(h_client, h_server, heketi_node_id)
for device in heketi_node_info.get('devices'):
heketi_ops.heketi_device_delete(
h_client, h_server, device.get('id'))
heketi_ops.heketi_node_delete(h_client, h_server, heketi_node_id)
# Switch to openshift-monitoring project
openshift_ops.switch_oc_project(
self.ocp_master_node[0], self._prometheus_project_name)
# Get final node count from prometheus metrics
for w in waiter.Waiter(timeout=60, interval=10):
metric_result = self._fetch_metric_from_promtheus_pod(
metric='heketi_nodes_count')
final_node_count = reduce(
lambda x, y: x + y,
[result.get('value')[1] for result in metric_result])
if condition == 'delete':
if final_node_count < node_count:
break
else:
if final_node_count > initial_node_count:
break
if w.expired:
raise exceptions.ExecutionError(
"Failed to update node details in prometheus")
def test_dev_path_mapping_heketi_node_delete(self):
"""Validate dev path mapping for heketi node deletion lifecycle"""
h_client, h_url = self.heketi_client_node, self.heketi_server_url
node_ids = heketi_ops.heketi_node_list(h_client, h_url)
self.assertTrue(node_ids, "Failed to get heketi node list")
# Fetch #4th node for the operations
h_disable_node = node_ids[3]
# Fetch bricks on the devices before volume create
h_node_details_before, h_node = self._get_bricks_and_device_details()
# Bricks count on the node before pvc creation
brick_count_before = [count[1] for count in h_node_details_before]
# Create file volume with app pod and verify IO's
# and compare path, UUID, vg_name
pod_name, dc_name, use_percent = self._create_app_pod_and_verify_pvs()
# Check if IO's are running
use_percent_after = self._get_space_use_percent_in_app_pod(pod_name)
self.assertNotEqual(
use_percent, use_percent_after,
"Failed to execute IO's in the app pod {} after respin".format(
pod_name))
# Fetch bricks on the devices after volume create
h_node_details_after, h_node = self._get_bricks_and_device_details()
# Bricks count on the node after pvc creation
brick_count_after = [count[1] for count in h_node_details_after]
self.assertGreater(
sum(brick_count_after), sum(brick_count_before),
"Failed to add bricks on the node {}".format(h_node))
self.addCleanup(heketi_ops.heketi_node_disable, h_client, h_url,
h_disable_node)
# Enable the #4th node
heketi_ops.heketi_node_enable(h_client, h_url, h_disable_node)
node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_disable_node,
json=True)
h_node_id = node_info['id']
self.assertEqual(node_info['state'], "online",
"Failed to enable node {}".format(h_disable_node))
# Disable the node and check for brick migrations
self.addCleanup(heketi_ops.heketi_node_enable,
h_client,
h_url,
h_node,
raise_on_error=False)
heketi_ops.heketi_node_disable(h_client, h_url, h_node)
node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_node,
json=True)
self.assertEqual(node_info['state'], "offline",
"Failed to disable node {}".format(h_node))
# Before bricks migration
h_node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_node,
json=True)
# Bricks before migration on the node i.e to be deleted
bricks_counts_before = 0
for device in h_node_info['devices']:
bricks_counts_before += (len(device['bricks']))
# Remove the node
heketi_ops.heketi_node_remove(h_client, h_url, h_node)
# After bricks migration
h_node_info_after = heketi_ops.heketi_node_info(h_client,
h_url,
h_node,
json=True)
# Bricks after migration on the node i.e to be delete
bricks_counts = 0
for device in h_node_info_after['devices']:
bricks_counts += (len(device['bricks']))
self.assertFalse(
bricks_counts,
"Failed to remove all the bricks from node {}".format(h_node))
# Old node which is to deleted, new node were bricks resides
old_node, new_node = h_node, h_node_id
# Node info for the new node were brick reside after migration
h_node_info_new = heketi_ops.heketi_node_info(h_client,
h_url,
new_node,
json=True)
bricks_counts_after = 0
for device in h_node_info_new['devices']:
bricks_counts_after += (len(device['bricks']))
self.assertEqual(
bricks_counts_before, bricks_counts_after,
"Failed to migrated bricks from {} node to {}".format(
old_node, new_node))
# Fetch device list i.e to be deleted
h_node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_node,
json=True)
devices_list = [[device['id'], device['name']]
for device in h_node_info['devices']]
for device in devices_list:
device_id = device[0]
device_name = device[1]
self.addCleanup(heketi_ops.heketi_device_add,
h_client,
h_url,
device_name,
h_node,
raise_on_error=False)
# Device deletion from heketi node
device_delete = heketi_ops.heketi_device_delete(
h_client, h_url, device_id)
self.assertTrue(device_delete,
"Failed to delete the device {}".format(device_id))
node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_node,
json=True)
cluster_id = node_info['cluster']
zone = node_info['zone']
storage_hostname = node_info['hostnames']['manage'][0]
storage_ip = node_info['hostnames']['storage'][0]
# Delete the node
self.addCleanup(heketi_ops.heketi_node_add,
h_client,
h_url,
zone,
cluster_id,
storage_hostname,
storage_ip,
raise_on_error=False)
heketi_ops.heketi_node_delete(h_client, h_url, h_node)
# Verify if the node is deleted
node_ids = heketi_ops.heketi_node_list(h_client, h_url)
self.assertNotIn(old_node, node_ids,
"Failed to delete the node {}".format(old_node))
# Check if IO's are running
use_percent_after = self._get_space_use_percent_in_app_pod(pod_name)
self.assertNotEqual(
use_percent, use_percent_after,
"Failed to execute IO's in the app pod {} after respin".format(
pod_name))
# Adding node back
h_node_info = heketi_ops.heketi_node_add(h_client,
h_url,
zone,
cluster_id,
storage_hostname,
storage_ip,
json=True)
self.assertTrue(
h_node_info,
"Failed to add the node in the cluster {}".format(cluster_id))
h_node_id = h_node_info["id"]
# Adding devices to the new node
for device in devices_list:
storage_device = device[1]
# Add device to the new heketi node
heketi_ops.heketi_device_add(h_client, h_url, storage_device,
h_node_id)
heketi_node_info = heketi_ops.heketi_node_info(h_client,
h_url,
h_node_id,
json=True)
device_id = None
for device in heketi_node_info["devices"]:
if device["name"] == storage_device:
device_id = device["id"]
break
self.assertTrue(
device_id, "Failed to add device {} on node {}".format(
storage_device, h_node_id))
# Create n pvc in order to verfiy if the bricks reside on the new node
pvc_amount, pvc_size = 5, 1
# Fetch bricks on the devices before volume create
h_node_details_before, h_node = self._get_bricks_and_device_details()
# Bricks count on the node before pvc creation
brick_count_before = [count[1] for count in h_node_details_before]
# Create file volumes
pvc_name = self.create_and_wait_for_pvcs(pvc_size=pvc_size,
pvc_amount=pvc_amount)
self.assertEqual(len(pvc_name), pvc_amount,
"Failed to create {} pvc".format(pvc_amount))
# Fetch bricks on the devices before volume create
h_node_details_after, h_node = self._get_bricks_and_device_details()
# Bricks count on the node after pvc creation
brick_count_after = [count[1] for count in h_node_details_after]
self.assertGreater(
sum(brick_count_after), sum(brick_count_before),
"Failed to add bricks on the new node {}".format(new_node))
# Check if IO's are running after new node is added
use_percent_after = self._get_space_use_percent_in_app_pod(pod_name)
self.assertNotEqual(
use_percent, use_percent_after,
"Failed to execute IO's in the app pod {} after respin".format(
pod_name))