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from jsondiff import diff
try:
# py2/3
import simplejson as json
except ImportError:
# py2
import json
from openshiftstoragelibs.baseclass import BaseClass
from openshiftstoragelibs.heketi_ops import (
heketi_topology_info,
heketi_volume_create,
heketi_volume_delete,
heketi_volume_expand,
hello_heketi,
)
from openshiftstoragelibs.openshift_ops import (
oc_get_custom_resource,
get_pod_name_from_dc,
oc_delete,
scale_dc_pod_amount_and_wait,
wait_for_pod_be_ready,
wait_for_resource_absence,
)
class TestRestartHeketi(BaseClass):
def test_restart_heketi_pod(self):
"""Validate restarting heketi pod"""
# create heketi volume
vol_info = heketi_volume_create(self.heketi_client_node,
self.heketi_server_url,
size=1, json=True)
self.assertTrue(vol_info, "Failed to create heketi volume of size 1")
self.addCleanup(
heketi_volume_delete, self.heketi_client_node,
self.heketi_server_url, vol_info['id'], raise_on_error=False)
topo_info = heketi_topology_info(self.heketi_client_node,
self.heketi_server_url,
json=True)
# get heketi-pod name
heketi_pod_name = get_pod_name_from_dc(self.ocp_master_node[0],
self.heketi_dc_name)
# delete heketi-pod (it restarts the pod)
oc_delete(self.ocp_master_node[0], 'pod', heketi_pod_name)
wait_for_resource_absence(self.ocp_master_node[0],
'pod', heketi_pod_name)
# get new heketi-pod name
heketi_pod_name = get_pod_name_from_dc(self.ocp_master_node[0],
self.heketi_dc_name)
wait_for_pod_be_ready(self.ocp_master_node[0],
heketi_pod_name)
# check heketi server is running
self.assertTrue(
hello_heketi(self.heketi_client_node, self.heketi_server_url),
"Heketi server %s is not alive" % self.heketi_server_url
)
# compare the topology
new_topo_info = heketi_topology_info(self.heketi_client_node,
self.heketi_server_url,
json=True)
self.assertEqual(new_topo_info, topo_info, "topology info is not same,"
" difference - %s" % diff(topo_info, new_topo_info))
# create new volume
vol_info = heketi_volume_create(self.heketi_client_node,
self.heketi_server_url,
size=2, json=True)
self.assertTrue(vol_info, "Failed to create heketi volume of size 20")
heketi_volume_delete(
self.heketi_client_node, self.heketi_server_url, vol_info['id'])
def test_set_heketi_vol_size_and_brick_amount_limits(self):
# Get Heketi secret name
cmd_get_heketi_secret_name = (
"oc get dc -n %s %s -o jsonpath='{.spec.template.spec.volumes"
"[?(@.name==\"config\")].secret.secretName}'" % (
self.storage_project_name, self.heketi_dc_name))
heketi_secret_name = self.cmd_run(cmd_get_heketi_secret_name)
# Read Heketi secret data
self.node = self.ocp_master_node[0]
heketi_secret_data_str_base64 = oc_get_custom_resource(
self.node, "secret", ":.data.'heketi\.json'", # noqa
name=heketi_secret_name)[0]
heketi_secret_data_str = self.cmd_run(
"echo %s | base64 -d" % heketi_secret_data_str_base64)
heketi_secret_data = json.loads(heketi_secret_data_str)
# Update Heketi secret data
brick_min_size_gb, brick_max_size_gb = 2, 4
heketi_secret_data["glusterfs"].update({
"brick_min_size_gb": brick_min_size_gb,
"brick_max_size_gb": brick_max_size_gb,
"max_bricks_per_volume": 3,
})
heketi_secret_data_patched = json.dumps(heketi_secret_data)
heketi_secret_data_str_encoded = self.cmd_run(
"echo '%s' |base64" % heketi_secret_data_patched).replace('\n', '')
h_client, h_server = self.heketi_client_node, self.heketi_server_url
try:
# Patch Heketi secret
cmd_patch_heketi_secret = (
'oc patch secret -n %s %s -p '
'"{\\"data\\": {\\"heketi.json\\": \\"%s\\"}}"'
) % (self.storage_project_name, heketi_secret_name, "%s")
self.cmd_run(
cmd_patch_heketi_secret % heketi_secret_data_str_encoded)
# Recreate the Heketi pod to make it reuse updated configuration
scale_dc_pod_amount_and_wait(self.node, self.heketi_dc_name, 0)
scale_dc_pod_amount_and_wait(self.node, self.heketi_dc_name, 1)
# Try to create too small and too big volumes
# It must fail because allowed range is not satisfied
for gb in (brick_min_size_gb - 1, brick_max_size_gb + 1):
try:
vol_1 = heketi_volume_create(
h_client, h_server, size=gb, json=True)
except AssertionError:
pass
else:
self.addCleanup(
heketi_volume_delete, h_client, h_server, vol_1['id'])
self.assertFalse(
vol_1,
"Volume '%s' got unexpectedly created. Heketi server "
"configuration haven't made required effect." % (
vol_1.get('id', 'failed_to_get_heketi_vol_id')))
# Create the smallest allowed volume
vol_2 = heketi_volume_create(
h_client, h_server, size=brick_min_size_gb, json=True)
self.addCleanup(
heketi_volume_delete, h_client, h_server, vol_2['id'])
# Try to expand volume, it must fail due to the brick amount limit
self.assertRaises(
AssertionError, heketi_volume_expand, h_client,
h_server, vol_2['id'], 2)
# Create the largest allowed volume
vol_3 = heketi_volume_create(
h_client, h_server, size=brick_max_size_gb, json=True)
heketi_volume_delete(h_client, h_server, vol_3['id'])
finally:
# Revert the Heketi configuration back
self.cmd_run(
cmd_patch_heketi_secret % heketi_secret_data_str_base64)
scale_dc_pod_amount_and_wait(self.node, self.heketi_dc_name, 0)
scale_dc_pod_amount_and_wait(self.node, self.heketi_dc_name, 1)
# Create volume less than the old minimum limit
vol_4 = heketi_volume_create(
h_client, h_server, size=(brick_min_size_gb - 1), json=True)
self.addCleanup(heketi_volume_delete, h_client, h_server, vol_4['id'])
# Create volume bigger than the old maximum limit and expand it
vol_5 = heketi_volume_create(
h_client, h_server, size=(brick_max_size_gb + 1), json=True)
self.addCleanup(heketi_volume_delete, h_client, h_server, vol_5['id'])
heketi_volume_expand(h_client, h_server, vol_5['id'], 2)
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