Page MenuHomeVyOS Platform
Files F4979234

vyos_ping.py
No OneTemporary
Actions

Size
6 KB
Referenced Files
None
Subscribers
None

vyos_ping.py
View Options

#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2017, Ansible by Red Hat, inc
#
# This file is part of Ansible by Red Hat
#
# 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/>.
#
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = """
---
module: vyos_ping
short_description: Tests reachability using ping from VyOS network devices
description:
- Tests reachability using ping from a VyOS device to a remote destination.
- Tested against VyOS 1.1.8 (helium)
- For a general purpose network module, see the M(net_ping) module.
- For Windows targets, use the M(win_ping) module instead.
- For targets running Python, use the M(ping) module instead.
author:
- Nilashish Chakraborty (@nilashishc)
version_added: '2.8'
options:
dest:
description:
- The IP Address or hostname (resolvable by the device) of the remote node.
required: true
count:
description:
- Number of packets to send to check reachability.
type: int
default: 5
source:
description:
- The source interface or IP Address to use while sending the ping packet(s).
ttl:
description:
- The time-to-live value for the ICMP packet(s).
type: int
size:
description:
- Determines the size (in bytes) of the ping packet(s).
type: int
interval:
description:
- Determines the interval (in seconds) between consecutive pings.
type: int
state:
description:
- Determines if the expected result is success or fail.
choices: [ absent, present ]
default: present
notes:
- For a general purpose network module, see the M(net_ping) module.
- For Windows targets, use the M(win_ping) module instead.
- For targets running Python, use the M(ping) module instead.
extends_documentation_fragment: vyos
"""
EXAMPLES = """
- name: Test reachability to 10.10.10.10
vyos_ping:
dest: 10.10.10.10
- name: Test reachability to 10.20.20.20 using source and ttl set
vyos_ping:
dest: 10.20.20.20
source: eth0
ttl: 128
- name: Test unreachability to 10.30.30.30 using interval
vyos_ping:
dest: 10.30.30.30
interval: 3
state: absent
- name: Test reachability to 10.40.40.40 setting count and source
vyos_ping:
dest: 10.40.40.40
source: eth1
count: 20
size: 512
"""
RETURN = """
commands:
description: List of commands sent.
returned: always
type: list
sample: ["ping 10.8.38.44 count 10 interface eth0 ttl 128"]
packet_loss:
description: Percentage of packets lost.
returned: always
type: str
sample: "0%"
packets_rx:
description: Packets successfully received.
returned: always
type: int
sample: 20
packets_tx:
description: Packets successfully transmitted.
returned: always
type: int
sample: 20
rtt:
description: The round trip time (RTT) stats.
returned: when ping succeeds
type: dict
sample: {"avg": 2, "max": 8, "min": 1, "mdev": 24}
"""
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import run_commands
from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.vyos import vyos_argument_spec
import re
def main():
""" main entry point for module execution
"""
argument_spec = dict(
count=dict(type="int", default=5),
dest=dict(type="str", required=True),
source=dict(type="str"),
ttl=dict(type='int'),
size=dict(type='int'),
interval=dict(type='int'),
state=dict(type="str", choices=["absent", "present"], default="present"),
)
argument_spec.update(vyos_argument_spec)
module = AnsibleModule(argument_spec=argument_spec)
count = module.params["count"]
dest = module.params["dest"]
source = module.params["source"]
size = module.params["size"]
ttl = module.params["ttl"]
interval = module.params["interval"]
warnings = list()
results = {}
if warnings:
results["warnings"] = warnings
results["commands"] = [build_ping(dest, count, size, interval, source, ttl)]
ping_results = run_commands(module, commands=results["commands"])
ping_results_list = ping_results[0].split("\n")
rtt_info, rate_info = None, None
for line in ping_results_list:
if line.startswith('rtt'):
rtt_info = line
if line.startswith('%s packets transmitted' % count):
rate_info = line
if rtt_info:
rtt = parse_rtt(rtt_info)
for k, v in rtt.items():
if rtt[k] is not None:
rtt[k] = int(v)
results["rtt"] = rtt
pkt_loss, rx, tx = parse_rate(rate_info)
results["packet_loss"] = str(pkt_loss) + "%"
results["packets_rx"] = int(rx)
results["packets_tx"] = int(tx)
validate_results(module, pkt_loss, results)
module.exit_json(**results)
def build_ping(dest, count, size=None, interval=None, source=None, ttl=None):
cmd = "ping {0} count {1}".format(dest, str(count))
if source:
cmd += " interface {0}".format(source)
if ttl:
cmd += " ttl {0}".format(str(ttl))
if size:
cmd += " size {0}".format(str(size))
if interval:
cmd += " interval {0}".format(str(interval))
return cmd
def parse_rate(rate_info):
rate_re = re.compile(
r"(?P<tx>\d+) (?:\w+) (?:\w+), (?P<rx>\d+) (?:\w+), (?P<pkt_loss>\d+)% (?:\w+) (?:\w+), (?:\w+) (?P<time>\d+)")
rate_err_re = re.compile(
r"(?P<tx>\d+) (?:\w+) (?:\w+), (?P<rx>\d+) (?:\w+), (?:[+-])(?P<err>\d+) (?:\w+), (?P<pkt_loss>\d+)% (?:\w+) (?:\w+), (?:\w+) (?P<time>\d+)")
if rate_re.match(rate_info):
rate = rate_re.match(rate_info)
elif rate_err_re.match(rate_info):
rate = rate_err_re.match(rate_info)
return rate.group("pkt_loss"), rate.group("rx"), rate.group("tx")
def parse_rtt(rtt_info):
rtt_re = re.compile(
r"rtt (?:.*)=(?:\s*)(?P<min>\d*).(?:\d*)/(?P<avg>\d*).(?:\d*)/(?P<max>\d+).(?:\d*)/(?P<mdev>\d*)")
rtt = rtt_re.match(rtt_info)
return rtt.groupdict()
def validate_results(module, loss, results):
state = module.params["state"]
if state == "present" and int(loss) == 100:
module.fail_json(msg="Ping failed unexpectedly", **results)
elif state == "absent" and int(loss) < 100:
module.fail_json(msg="Ping succeeded unexpectedly", **results)
if __name__ == "__main__":
main()

File Metadata

Mime Type
text/x-script.python
Expires
Thu, Oct 31, 10:21 PM (1 d, 20 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
895295
Default Alt Text
vyos_ping.py (6 KB)

Event Timeline