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import ddt
import pytest
from glusto.core import Glusto as g
from openshiftstoragelibs import baseclass
from openshiftstoragelibs import command
from openshiftstoragelibs import heketi_ops
from openshiftstoragelibs import node_ops
from openshiftstoragelibs import openshift_ops
from openshiftstoragelibs import openshift_storage_libs
from openshiftstoragelibs import podcmd
@ddt.ddt
class TestDevPathMapping(baseclass.BaseClass):
'''Class that contain dev path mapping test cases for
gluster file & block volumes
'''
def setUp(self):
super(TestDevPathMapping, self).setUp()
self.node = self.ocp_master_node[0]
self.h_node, self.h_server = (
self.heketi_client_node, self.heketi_server_url)
h_nodes_list = heketi_ops.heketi_node_list(self.h_node, self.h_server)
h_node_count = len(h_nodes_list)
if h_node_count < 3:
self.skipTest(
"At least 3 nodes are required, found {}".format(
h_node_count))
# Disable 4th and other nodes
for node_id in h_nodes_list[3:]:
heketi_ops.heketi_node_disable(
self.h_node, self.h_server, node_id)
self.addCleanup(
heketi_ops.heketi_node_enable,
self.h_node, self.h_server, node_id)
h_info = heketi_ops.heketi_node_info(
self.h_node, self.h_server, h_nodes_list[0], json=True)
self.assertTrue(
h_info, "Failed to get the heketi node info for node id"
" {}".format(h_nodes_list[0]))
self.node_ip = h_info['hostnames']['storage'][0]
self.node_hostname = h_info["hostnames"]["manage"][0]
self.vm_name = node_ops.find_vm_name_by_ip_or_hostname(
self.node_hostname)
self.devices_list = [device['name'] for device in h_info["devices"]]
# Get list of additional devices for one of the Gluster nodes
for gluster_server in list(g.config["gluster_servers"].values()):
if gluster_server['storage'] == self.node_ip:
additional_device = gluster_server.get("additional_devices")
if additional_device:
self.devices_list.extend(additional_device)
# sort the devices list
self.devices_list.sort()
@pytest.mark.tier2
@podcmd.GlustoPod()
def test_dev_path_file_volume_create(self):
"""Validate dev path mapping for file volumes"""
pvc_size, pvc_amount = 2, 5
pvs_info_before = openshift_storage_libs.get_pvs_info(
self.node, self.node_ip, self.devices_list, raise_on_error=False)
self.detach_and_attach_vmdk(
self.vm_name, self.node_hostname, self.devices_list)
pvs_info_after = openshift_storage_libs.get_pvs_info(
self.node, self.node_ip, self.devices_list, raise_on_error=False)
# Compare pvs info before and after
for (path, uuid, vg_name), (_path, _uuid, _vg_name) in zip(
pvs_info_before[:-1], pvs_info_after[1:]):
self.assertEqual(
uuid, _uuid, "pv_uuid check failed. Expected:{},"
"Actual: {}".format(uuid, _uuid))
self.assertEqual(
vg_name, _vg_name, "vg_name check failed. Expected:"
"{}, Actual:{}".format(vg_name, _vg_name))
# Create file volumes
pvcs = self.create_and_wait_for_pvcs(
pvc_size=pvc_size, pvc_amount=pvc_amount)
self.create_dcs_with_pvc(pvcs)
self.validate_file_volumes_count(
self.h_node, self.h_server, self.node_ip)
def _get_space_use_percent_in_app_pod(self, pod_name):
"""Check if IO's are running in the app pod"""
use_percent = []
cmd = "oc exec {} -- df -h /mnt | tail -1"
# Run 10 times to track the percentage used
for _ in range(10):
out = command.cmd_run(cmd.format(pod_name), self.node).split()[3]
self.assertTrue(
out, "Failed to fetch mount point details from the pod "
"{}".format(pod_name))
use_percent.append(out[:-1])
return use_percent
def _create_app_pod_and_verify_pvs(self):
"""Create file volume with app pod and verify IO's. Compare path,
uuid, vg_name.
"""
pvc_size, pvc_amount = 2, 1
# Space to use for io's in KB
space_to_use = 104857600
# Create file volumes
pvc_name = self.create_and_wait_for_pvcs(
pvc_size=pvc_size, pvc_amount=pvc_amount)
# Create dcs and app pods with I/O on it
dc_name = self.create_dcs_with_pvc(pvc_name, space_to_use=space_to_use)
# Pod names list
pod_name = [pod_name for _, pod_name in list(dc_name.values())][0]
self.assertTrue(
pod_name, "Failed to get the pod name from {}".format(dc_name))
pvs_info_before = openshift_storage_libs.get_pvs_info(
self.node, self.node_ip, self.devices_list, raise_on_error=False)
# Check if IO's are running
use_percent_before = self._get_space_use_percent_in_app_pod(pod_name)
# Compare volumes
self.validate_file_volumes_count(
self.h_node, self.h_server, self.node_ip)
self.detach_and_attach_vmdk(
self.vm_name, self.node_hostname, self.devices_list)
# Check if IO's are running
use_percent_after = self._get_space_use_percent_in_app_pod(pod_name)
self.assertNotEqual(
use_percent_before, use_percent_after,
"Failed to execute IO's in the app pod {}".format(
pod_name))
pvs_info_after = openshift_storage_libs.get_pvs_info(
self.node, self.node_ip, self.devices_list, raise_on_error=False)
# Compare pvs info before and after
for (path, uuid, vg_name), (_path, _uuid, _vg_name) in zip(
pvs_info_before[:-1], pvs_info_after[1:]):
self.assertEqual(
uuid, _uuid, "pv_uuid check failed. Expected: {},"
" Actual: {}".format(uuid, _uuid))
self.assertEqual(
vg_name, _vg_name, "vg_name check failed. Expected: {},"
" Actual:{}".format(vg_name, _vg_name))
return pod_name, dc_name, use_percent_before
@pytest.mark.tier2
@podcmd.GlustoPod()
def test_dev_path_mapping_app_pod_with_file_volume_reboot(self):
"""Validate dev path mapping for app pods with file volume after reboot
"""
# 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()
# Delete app pods
openshift_ops.oc_delete(self.node, 'pod', pod_name)
openshift_ops.wait_for_resource_absence(self.node, 'pod', pod_name)
# Wait for the new app pod to come up
dc_name = [pod for pod, _ in list(dc_name.values())][0]
self.assertTrue(
dc_name, "Failed to get the dc name from {}".format(dc_name))
pod_name = openshift_ops.get_pod_name_from_dc(self.node, dc_name)
openshift_ops.wait_for_pod_be_ready(self.node, pod_name)
# Check if IO's are running after respin of app pod
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))
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