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HTTP ping monitor driver for Monitoring Framework

Change-Id: Iab2e0d92ffd52d6575a4372aeadc5285dab85277
Implements: blueprint monitoring
tags/0.2.0
Bharath Thiruveedula 5 years ago
parent
commit
0e91cd11c8
5 changed files with 118 additions and 0 deletions
  1. +39
    -0
      devstack/samples/sample-vnfd-http-monitor.yaml
  2. +1
    -0
      etc/tacker/tacker.conf
  3. +1
    -0
      setup.cfg
  4. +0
    -0
      tacker/vm/monitor_drivers/http_ping/__init__.py
  5. +77
    -0
      tacker/vm/monitor_drivers/http_ping/http_ping.py

+ 39
- 0
devstack/samples/sample-vnfd-http-monitor.yaml View File

@@ -0,0 +1,39 @@
template_name: sample-vnfd-http-monitor
description: demo-example

service_properties:
Id: sample-vnfd
vendor: tacker
version: 1

vdus:
vdu1:
id: vdu1
vm_image: ubuntu
instance_type: m1.small

network_interfaces:
management:
network: net_mgmt
management: true
pkt_in:
network: net0
pkt_out:
network: net1

placement_policy:
availability_zone: nova

auto-scaling: noop
monitoring_policy:
http_ping:
monitoring_params:
retry: 5
timeout: 10
port: 8000
actions:
failure: respawn

config:
param0: key0
param1: key1

+ 1
- 0
etc/tacker/tacker.conf View File

@@ -398,6 +398,7 @@ mgmt_driver = openwrt

# Specify drivers for monitoring
monitor_driver = ping
monitor_driver = http_ping

[servicevm_nova]
# parameters for novaclient to talk to nova


+ 1
- 0
setup.cfg View File

@@ -55,6 +55,7 @@ tacker.servicevm.mgmt.drivers =
openwrt = tacker.vm.mgmt_drivers.openwrt.openwrt:DeviceMgmtOpenWRT
tacker.servicevm.monitor.drivers =
ping = tacker.vm.monitor_drivers.ping.ping:VNFMonitorPing
http_ping = tacker.vm.monitor_drivers.http_ping.http_ping:VNFMonitorHTTPPing


[build_sphinx]


+ 0
- 0
tacker/vm/monitor_drivers/http_ping/__init__.py View File


+ 77
- 0
tacker/vm/monitor_drivers/http_ping/http_ping.py View File

@@ -0,0 +1,77 @@
#
# 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 urllib2

from oslo_config import cfg

from tacker.common import log
from tacker.i18n import _LW
from tacker.openstack.common import log as logging
from tacker.vm.monitor_drivers import abstract_driver


LOG = logging.getLogger(__name__)
OPTS = [
cfg.IntOpt('retry', default=5,
help=_('number of times to retry')),
cfg.IntOpt('timeout', default=1,
help=_('number of seconds to wait for a response')),
cfg.IntOpt('port', default=80,
help=_('HTTP port number to send request'))
]
cfg.CONF.register_opts(OPTS, 'monitor_http_ping')


class VNFMonitorHTTPPing(abstract_driver.VNFMonitorAbstractDriver):
def get_type(self):
return 'http_ping'

def get_name(self):
return 'HTTP ping'

def get_description(self):
return 'Tacker HTTP Ping Driver for VNF'

def monitor_url(self, plugin, context, device):
LOG.debug(_('monitor_url %s'), device)
return device.get('monitor_url', '')

def _is_pingable(self, mgmt_ip='', retry=5, timeout=5, port=80, **kwargs):
"""Checks whether the server is reachable by using urllib2.

Waits for connectivity for `timeout` seconds,
and if connection refused, it will retry `retry`
times.
:param mgmt_ip: IP to check
:param retry: times to reconnect if connection refused
:param timeout: seconds to wait for connection
:param port: port number to check connectivity
:return: bool - True or False depending on pingability.
"""
url = 'http://' + mgmt_ip + ':' + str(port)
for retry_index in range(int(retry)):
try:
urllib2.urlopen(url, timeout=timeout)
return True
except urllib2.URLError:
LOG.warning(_LW('Unable to reach to the url %s'), url)
return 'failure'

@log.log
def monitor_call(self, device, kwargs):
if not kwargs['mgmt_ip']:
return

return self._is_pingable(**kwargs)

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