Current File : //proc/self/root/lib/python2.7/site-packages/ansible/modules/core/network/nxos/nxos_ping.py
#!/usr/bin/python
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = '''
---
module: nxos_ping
version_added: "2.1"
short_description: Tests reachability using ping from Nexus switch.
description:
- Tests reachability using ping from switch to a remote destination.
extends_documentation_fragment: nxos
author:
- Jason Edelman (@jedelman8)
- Gabriele Gerbino (@GGabriele)
options:
dest:
description:
- IP address or hostname (resolvable by switch) of remote node.
required: true
count:
description:
- Number of packets to send.
required: false
default: 2
source:
description:
- Source IP Address.
required: false
default: null
vrf:
description:
- Outgoing VRF.
required: false
default: null
'''
EXAMPLES = '''
# test reachability to 8.8.8.8 using mgmt vrf
- nxos_ping: dest=8.8.8.8 vrf=management host=68.170.147.165
# Test reachability to a few different public IPs using mgmt vrf
- nxos_ping: dest=nxos_ping vrf=management host=68.170.147.165
with_items:
- 8.8.8.8
- 4.4.4.4
- 198.6.1.4
'''
RETURN = '''
action:
description:
- Show what action has been performed
returned: always
type: string
sample: "PING 8.8.8.8 (8.8.8.8): 56 data bytes"
updates:
description: Show the command sent
returned: always
type: list
sample: ["ping 8.8.8.8 count 2 vrf management"]
count:
description: Show amount of packets sent
returned: always
type: string
sample: "2"
dest:
description: Show the ping destination
returned: always
type: string
sample: "8.8.8.8"
rtt:
description: Show RTT stats
returned: always
type: dict
sample: {"avg": "6.264","max":"6.564",
"min": "5.978"}
packets_rx:
description: Packets successfully received
returned: always
type: string
sample: "2"
packets_tx:
description: Packets successfully transmitted
returned: always
type: string
sample: "2"
packet_loss:
description: Percentage of packets lost
returned: always
type: string
sample: "0.00%"
'''
import json
import collections
# COMMON CODE FOR MIGRATION
import re
from ansible.module_utils.basic import get_exception
from ansible.module_utils.netcfg import NetworkConfig, ConfigLine
from ansible.module_utils.shell import ShellError
try:
from ansible.module_utils.nxos import get_module
except ImportError:
from ansible.module_utils.nxos import NetworkModule, NetworkError
def to_list(val):
if isinstance(val, (list, tuple)):
return list(val)
elif val is not None:
return [val]
else:
return list()
class CustomNetworkConfig(NetworkConfig):
def expand_section(self, configobj, S=None):
if S is None:
S = list()
S.append(configobj)
for child in configobj.children:
if child in S:
continue
self.expand_section(child, S)
return S
def get_object(self, path):
for item in self.items:
if item.text == path[-1]:
parents = [p.text for p in item.parents]
if parents == path[:-1]:
return item
def to_block(self, section):
return '\n'.join([item.raw for item in section])
def get_section(self, path):
try:
section = self.get_section_objects(path)
return self.to_block(section)
except ValueError:
return list()
def get_section_objects(self, path):
if not isinstance(path, list):
path = [path]
obj = self.get_object(path)
if not obj:
raise ValueError('path does not exist in config')
return self.expand_section(obj)
def add(self, lines, parents=None):
"""Adds one or lines of configuration
"""
ancestors = list()
offset = 0
obj = None
## global config command
if not parents:
for line in to_list(lines):
item = ConfigLine(line)
item.raw = line
if item not in self.items:
self.items.append(item)
else:
for index, p in enumerate(parents):
try:
i = index + 1
obj = self.get_section_objects(parents[:i])[0]
ancestors.append(obj)
except ValueError:
# add parent to config
offset = index * self.indent
obj = ConfigLine(p)
obj.raw = p.rjust(len(p) + offset)
if ancestors:
obj.parents = list(ancestors)
ancestors[-1].children.append(obj)
self.items.append(obj)
ancestors.append(obj)
# add child objects
for line in to_list(lines):
# check if child already exists
for child in ancestors[-1].children:
if child.text == line:
break
else:
offset = len(parents) * self.indent
item = ConfigLine(line)
item.raw = line.rjust(len(line) + offset)
item.parents = ancestors
ancestors[-1].children.append(item)
self.items.append(item)
def get_network_module(**kwargs):
try:
return get_module(**kwargs)
except NameError:
return NetworkModule(**kwargs)
def get_config(module, include_defaults=False):
config = module.params['config']
if not config:
try:
config = module.get_config()
except AttributeError:
defaults = module.params['include_defaults']
config = module.config.get_config(include_defaults=defaults)
return CustomNetworkConfig(indent=2, contents=config)
def load_config(module, candidate):
config = get_config(module)
commands = candidate.difference(config)
commands = [str(c).strip() for c in commands]
save_config = module.params['save']
result = dict(changed=False)
if commands:
if not module.check_mode:
try:
module.configure(commands)
except AttributeError:
module.config(commands)
if save_config:
try:
module.config.save_config()
except AttributeError:
module.execute(['copy running-config startup-config'])
result['changed'] = True
result['updates'] = commands
return result
# END OF COMMON CODE
def get_summary(results_list, reference_point):
summary_string = results_list[reference_point+1]
summary_list = summary_string.split(',')
pkts_tx = summary_list[0].split('packets')[0].strip()
pkts_rx = summary_list[1].split('packets')[0].strip()
pkt_loss = summary_list[2].split('packet')[0].strip()
summary = dict(packets_tx=pkts_tx,
packets_rx=pkts_rx,
packet_loss=pkt_loss)
if 'bytes from' not in results_list[reference_point-2]:
ping_pass = False
else:
ping_pass = True
return summary, ping_pass
def get_rtt(results_list, packet_loss, location):
if packet_loss != '100.00%':
rtt_string = results_list[location]
base = rtt_string.split('=')[1]
rtt_list = base.split('/')
min_rtt = rtt_list[0].lstrip()
avg_rtt = rtt_list[1]
max_rtt = rtt_list[2][:-3]
rtt = dict(min=min_rtt, avg=avg_rtt, max=max_rtt)
else:
rtt = dict(min=None, avg=None, max=None)
return rtt
def get_statistics_summary_line(response_as_list):
for each in response_as_list:
if '---' in each:
index = response_as_list.index(each)
return index
def execute_show(cmds, module, command_type=None):
command_type_map = {
'cli_show': 'json',
'cli_show_ascii': 'text'
}
try:
if command_type:
response = module.execute(cmds, command_type=command_type)
else:
response = module.execute(cmds)
except ShellError:
clie = get_exception()
module.fail_json(msg='Error sending {0}'.format(cmds),
error=str(clie))
except AttributeError:
try:
if command_type:
command_type = command_type_map.get(command_type)
module.cli.add_commands(cmds, output=command_type)
response = module.cli.run_commands()
else:
module.cli.add_commands(cmds, raw=True)
response = module.cli.run_commands()
except NetworkError:
clie = get_exception()
module.fail_json(msg='Error sending {0}'.format(cmds),
error=str(clie))
return response
def execute_show_command_ping(command, module, command_type='cli_show_ascii'):
cmds = [command]
if module.params['transport'] == 'cli':
body = execute_show(cmds, module)
elif module.params['transport'] == 'nxapi':
body = execute_show(cmds, module, command_type=command_type)
return body
def get_ping_results(command, module, transport):
ping = execute_show_command_ping(command, module)[0]
if not ping:
module.fail_json(msg="An unexpected error occurred. Check all params.",
command=command, destination=module.params['dest'],
vrf=module.params['vrf'],
source=module.params['source'])
elif "can't bind to address" in ping:
module.fail_json(msg="Can't bind to source address.", command=command)
elif "bad context" in ping:
module.fail_json(msg="Wrong VRF name inserted.", command=command,
vrf=module.params['vrf'])
else:
splitted_ping = ping.split('\n')
reference_point = get_statistics_summary_line(splitted_ping)
summary, ping_pass = get_summary(splitted_ping, reference_point)
rtt = get_rtt(splitted_ping, summary['packet_loss'], reference_point+2)
return (splitted_ping, summary, rtt, ping_pass)
def main():
argument_spec = dict(
dest=dict(required=True),
count=dict(required=False, default=2),
vrf=dict(required=False),
source=dict(required=False),
state=dict(required=False, choices=['present', 'absent'],
default='present'),
include_defaults=dict(default=False),
config=dict(),
save=dict(type='bool', default=False)
)
module = get_network_module(argument_spec=argument_spec,
supports_check_mode=True)
destination = module.params['dest']
count = module.params['count']
vrf = module.params['vrf']
source = module.params['source']
state = module.params['state']
if count:
try:
if int(count) < 1 or int(count) > 655350:
raise ValueError
except ValueError:
module.fail_json(msg="'count' must be an integer between 1 "
"and 655350.", count=count)
OPTIONS = {
'vrf': vrf,
'count': count,
'source': source
}
ping_command = 'ping {0}'.format(destination)
for command, arg in OPTIONS.items():
if arg:
ping_command += ' {0} {1}'.format(command, arg)
ping_results, summary, rtt, ping_pass = get_ping_results(
ping_command, module, module.params['transport'])
packet_loss = summary['packet_loss']
packets_rx = summary['packets_rx']
packets_tx = summary['packets_tx']
results = {}
results['updates'] = [ping_command]
results['action'] = ping_results[1]
results['dest'] = destination
results['count'] = count
results['packets_tx'] = packets_tx
results['packets_rx'] = packets_rx
results['packet_loss'] = packet_loss
results['rtt'] = rtt
results['state'] = module.params['state']
if ping_pass and state == 'absent':
module.fail_json(msg="Ping succeeded unexpectedly", results=results)
elif not ping_pass and state == 'present':
module.fail_json(msg="Ping failed unexpectedly", results=results)
else:
module.exit_json(**results)
if __name__ == '__main__':
main()
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