168 lines
6.1 KiB
Python
168 lines
6.1 KiB
Python
# 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.
|
|
|
|
import netaddr
|
|
import re
|
|
import time
|
|
|
|
import six
|
|
|
|
from tempest.common import ssh
|
|
from tempest import config
|
|
from tempest import exceptions
|
|
|
|
CONF = config.CONF
|
|
|
|
|
|
class RemoteClient(object):
|
|
|
|
# NOTE(afazekas): It should always get an address instead of server
|
|
def __init__(self, server, username, password=None, pkey=None):
|
|
ssh_timeout = CONF.compute.ssh_timeout
|
|
network = CONF.compute.network_for_ssh
|
|
ip_version = CONF.compute.ip_version_for_ssh
|
|
ssh_channel_timeout = CONF.compute.ssh_channel_timeout
|
|
if isinstance(server, six.string_types):
|
|
ip_address = server
|
|
else:
|
|
addresses = server['addresses'][network]
|
|
for address in addresses:
|
|
if address['version'] == ip_version:
|
|
ip_address = address['addr']
|
|
break
|
|
else:
|
|
raise exceptions.ServerUnreachable()
|
|
self.ssh_client = ssh.Client(ip_address, username, password,
|
|
ssh_timeout, pkey=pkey,
|
|
channel_timeout=ssh_channel_timeout)
|
|
|
|
def exec_command(self, cmd):
|
|
return self.ssh_client.exec_command(cmd)
|
|
|
|
def validate_authentication(self):
|
|
"""Validate ssh connection and authentication
|
|
This method raises an Exception when the validation fails.
|
|
"""
|
|
self.ssh_client.test_connection_auth()
|
|
|
|
def hostname_equals_servername(self, expected_hostname):
|
|
# Get host name using command "hostname"
|
|
actual_hostname = self.exec_command("hostname").rstrip()
|
|
return expected_hostname == actual_hostname
|
|
|
|
def get_ram_size_in_mb(self):
|
|
output = self.exec_command('free -m | grep Mem')
|
|
if output:
|
|
return output.split()[1]
|
|
|
|
def get_number_of_vcpus(self):
|
|
command = 'cat /proc/cpuinfo | grep processor | wc -l'
|
|
output = self.exec_command(command)
|
|
return int(output)
|
|
|
|
def get_partitions(self):
|
|
# Return the contents of /proc/partitions
|
|
command = 'cat /proc/partitions'
|
|
output = self.exec_command(command)
|
|
return output
|
|
|
|
def get_boot_time(self):
|
|
cmd = 'cut -f1 -d. /proc/uptime'
|
|
boot_secs = self.exec_command(cmd)
|
|
boot_time = time.time() - int(boot_secs)
|
|
return time.localtime(boot_time)
|
|
|
|
def write_to_console(self, message):
|
|
message = re.sub("([$\\`])", "\\\\\\\\\\1", message)
|
|
# usually to /dev/ttyS0
|
|
cmd = 'sudo sh -c "echo \\"%s\\" >/dev/console"' % message
|
|
return self.exec_command(cmd)
|
|
|
|
def ping_host(self, host, count=CONF.compute.ping_count,
|
|
size=CONF.compute.ping_size):
|
|
addr = netaddr.IPAddress(host)
|
|
cmd = 'ping6' if addr.version == 6 else 'ping'
|
|
cmd += ' -c{0} -w{0} -s{1} {2}'.format(count, size, host)
|
|
return self.exec_command(cmd)
|
|
|
|
def get_mac_address(self):
|
|
cmd = "/bin/ip addr | awk '/ether/ {print $2}'"
|
|
return self.exec_command(cmd)
|
|
|
|
def get_nic_name(self, address):
|
|
cmd = "/bin/ip -o addr | awk '/%s/ {print $2}'" % address
|
|
return self.exec_command(cmd)
|
|
|
|
def get_ip_list(self):
|
|
cmd = "/bin/ip address"
|
|
return self.exec_command(cmd)
|
|
|
|
def assign_static_ip(self, nic, addr):
|
|
cmd = "sudo /bin/ip addr add {ip}/{mask} dev {nic}".format(
|
|
ip=addr, mask=CONF.network.tenant_network_mask_bits,
|
|
nic=nic
|
|
)
|
|
return self.exec_command(cmd)
|
|
|
|
def turn_nic_on(self, nic):
|
|
cmd = "sudo /bin/ip link set {nic} up".format(nic=nic)
|
|
return self.exec_command(cmd)
|
|
|
|
def get_pids(self, pr_name):
|
|
# Get pid(s) of a process/program
|
|
cmd = "ps -ef | grep %s | grep -v 'grep' | awk {'print $1'}" % pr_name
|
|
return self.exec_command(cmd).split('\n')
|
|
|
|
def get_dns_servers(self):
|
|
cmd = 'cat /etc/resolv.conf'
|
|
resolve_file = self.exec_command(cmd).strip().split('\n')
|
|
entries = (l.split() for l in resolve_file)
|
|
dns_servers = [l[1] for l in entries
|
|
if len(l) and l[0] == 'nameserver']
|
|
return dns_servers
|
|
|
|
def send_signal(self, pid, signum):
|
|
cmd = 'sudo /bin/kill -{sig} {pid}'.format(pid=pid, sig=signum)
|
|
return self.exec_command(cmd)
|
|
|
|
def _renew_lease_udhcpc(self, fixed_ip=None):
|
|
"""Renews DHCP lease via udhcpc client. """
|
|
file_path = '/var/run/udhcpc.'
|
|
nic_name = self.get_nic_name(fixed_ip)
|
|
nic_name = nic_name.strip().lower()
|
|
pid = self.exec_command('cat {path}{nic}.pid'.
|
|
format(path=file_path, nic=nic_name))
|
|
pid = pid.strip()
|
|
self.send_signal(pid, 'USR1')
|
|
|
|
def _renew_lease_dhclient(self, fixed_ip=None):
|
|
"""Renews DHCP lease via dhclient client. """
|
|
cmd = "sudo /sbin/dhclient -r && sudo /sbin/dhclient"
|
|
self.exec_command(cmd)
|
|
|
|
def renew_lease(self, fixed_ip=None):
|
|
"""Wrapper method for renewing DHCP lease via given client
|
|
|
|
Supporting:
|
|
* udhcpc
|
|
* dhclient
|
|
"""
|
|
# TODO(yfried): add support for dhcpcd
|
|
suported_clients = ['udhcpc', 'dhclient']
|
|
dhcp_client = CONF.scenario.dhcp_client
|
|
if dhcp_client not in suported_clients:
|
|
raise exceptions.InvalidConfiguration('%s DHCP client unsupported'
|
|
% dhcp_client)
|
|
if dhcp_client == 'udhcpc' and not fixed_ip:
|
|
raise ValueError("need to set 'fixed_ip' for udhcpc client")
|
|
return getattr(self, '_renew_lease_' + dhcp_client)(fixed_ip=fixed_ip)
|