fuel-qa/fuelweb_test/helpers/pacemaker.py
Vladimir Kuklin 34d1ac7fec Use correct pcs resource name for rabbitmq-server resource
1) introduce additional pacemaker helper to get correct resource
name for multi-state resources
2) alter strength tests to use the correct name

Change-Id: Ibe97e2d7cadf475354e1ed77b41deff6faf68151
Closes-bug: #1551708
2016-03-22 14:38:52 +03:00

130 lines
4.2 KiB
Python

# Copyright 2015 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from xml.etree import ElementTree
from fuelweb_test.helpers.ssh_manager import SSHManager
def get_pacemaker_nodes_attributes(cibadmin_status_xml):
"""Parse 'cibadmin --query --scope status'.
:param cibadmin_status_xml: stdout from 'cibadmin --query --scope status'
:return: nested dictionary with node-fqdn and attribute name as keys
"""
""" Get cibadmin_status to a python dict:
return:
{
fqdn: {
'arch':
'cpu_cores':
'cpu_info':
'cpu_load':
'cpu_speed':
'free_swap':
'gtidd':
'master-p_conntrackd':
'master-p_rabbitmq-server':
'os':
'#health_disk': # only on master if root_free < 100M
'pingd':
'rabbit-master': # only on master
'rabbit-start-time':
'rabbit_get_alarms_timeouts':
'rabbit_list_channels_timeouts':
'ram_free':
'ram_total':
'root_free':
'var_lib_glance_free':
'var_lib_mysql_free':
'var_log_free':
},
...
}
"""
root = ElementTree.fromstring(cibadmin_status_xml)
nodes = {}
for node_state in root.iter('node_state'):
node_name = node_state.get('uname')
nodes[node_name] = {}
for instance_attribute in node_state.iter('nvpair'):
nodes[node_name][instance_attribute.get(
'name')] = instance_attribute.get('value')
return nodes
def get_pcs_nodes(pcs_status_xml):
"""Parse 'pcs status xml'. <Nodes> section
:param pcs_status_xml: stdout from 'pcs status xml'
:return: nested dictionary with node-fqdn and attribute name as keys
"""
""" Get crm node attributes to a python dict:
return:
{
fqdn: {
'node name':
'id':
'online':
'standby':
'standby_on_fail':
'maintenance':
'pending':
'unclean':
'shutdown':
'expected_up':
'is_dc':
'resources_running':
'type':
},
...
}
"""
root = ElementTree.fromstring(pcs_status_xml)
nodes = {}
for nodes_group in root.iter('nodes'):
for node in nodes_group:
nodes[node.get('name')] = node.attrib
return nodes
def parse_pcs_status_xml(remote_ip):
"""Parse 'pcs status xml'. <Nodes> section
:param remote_ip: remote IP address
:return: nested dictionary with node-fqdn and attribute name as keys
"""
pcs_status_dict = SSHManager().execute_on_remote(
remote_ip, 'pcs status xml')['stdout_str']
return pcs_status_dict
def get_pacemaker_resource_name(remote_ip, resource_name):
""" Parse 'cibadmin -Q --scope resources' and check whether the resource
is multistate. Return parent resource name if it is, resource name
otherwise
:param remote_ip: remote IP address
:param resource_name: resource name string
:return: string with proper resource name
"""
cib = SSHManager().execute_on_remote(
remote_ip, 'cibadmin -Q --scope resources')['stdout_str']
root = ElementTree.fromstring(cib)
resource_parent = root.find(
".//primitive[@id='{0}']/..".format(resource_name))
if resource_parent.tag in ['master', 'clone']:
return resource_parent.attrib['id']
else:
return resource_name