def network(meta):
""" network """
# collect info for all hte alive interfaces
for interface in alive_interfaces():
addresses = netifaces.ifaddresses(interface)
interface_info = {
'name': interface
}
# collect ipv4 and ipv6 addresses
for proto, key in {
'ipv4': netifaces.AF_INET,
'ipv6': netifaces.AF_INET6
}.iteritems():
# get the first address
protocol_data = addresses.get(key, [{}])[0]
if protocol_data:
addr = protocol_data.get('addr').split('%').pop(0)
netmask = protocol_data.get('netmask')
try:
prefixlen = netaddr.IPNetwork('%s/%s' % (addr, netmask)).prefixlen
except:
prefixlen = None
interface_info[proto] = {
'netmask': netmask,
'address': addr,
'prefixlen': prefixlen
}
# collect mac address
interface_info['mac'] = addresses.get(netifaces.AF_LINK, [{}])[0].get('addr')
meta['network']['interfaces'].append(interface_info)
# get default interface name
netstat_out, _ = subp.call("netstat -nr | egrep -i '^0.0.0.0|default'", check=False)
if len(netstat_out) and netstat_out[0]:
first_matched_line = netstat_out[0]
default_interface = first_matched_line.split(' ')[-1]
elif len(meta['network']['interfaces']):
default_interface = meta['network']['interfaces'][0]['name']
else:
default_interface = None
meta['network']['default'] = default_interface
def net_io_counters(self):
"""
net io counters
total counters do not include lo interface
"""
totals = defaultdict(int)
metrics = {
'packets_sent': 'system.net.packets_out.count',
'packets_recv': 'system.net.packets_in.count',
'bytes_sent': 'system.net.bytes_sent',
'bytes_recv': 'system.net.bytes_rcvd',
'errin': 'system.net.packets_in.error',
'errout': 'system.net.packets_out.error',
'dropin': 'system.net.drops_in.count',
'dropout': 'system.net.drops_out.count'
}
net_io_counters = psutil.net_io_counters(pernic=True)
for interface in host.alive_interfaces():
io = net_io_counters.get(interface)
for method, metric in metrics.iteritems():
new_stamp, new_value = time.time(), getattr(io, method)
prev_stamp, prev_value = self.previous_values.get(interface, {}).get(metric, [None, None])
if prev_stamp:
delta_value = new_value - prev_value
metric_full_name = '%s|%s' % (metric, interface)
self.statsd.incr(metric_full_name, delta_value)
# collect total values
if not interface.startswith('lo'):
totals[metric] += delta_value
self.previous_values[interface][metric] = [new_stamp, new_value]
# send total values
for metric, value in totals.iteritems():
self.statsd.incr(metric, value)
