ffmap-backend/ffmap/rrd/rrds.py

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import os
import subprocess
from ffmap.node import Node
from . import RRD, DS, RRA
class NodeRRD(RRD):
ds_list = [
DS('upstate', 'GAUGE', 120, 0, 1),
DS('clients', 'GAUGE', 120, 0, float('NaN')),
DS('neighbors', 'GAUGE', 120, 0, float('NaN')),
DS('vpn_neighbors', 'GAUGE', 120, 0, float('NaN')),
DS('loadavg', 'GAUGE', 120, 0, float('NaN')),
DS('rx_bytes', 'DERIVE', 120, 0, float('NaN')),
DS('rx_packets', 'DERIVE', 120, 0, float('NaN')),
DS('tx_bytes', 'DERIVE', 120, 0, float('NaN')),
DS('tx_packets', 'DERIVE', 120, 0, float('NaN')),
DS('mgmt_rx_bytes', 'DERIVE', 120, 0, float('NaN')),
DS('mgmt_rx_packets', 'DERIVE', 120, 0, float('NaN')),
DS('mgmt_tx_bytes', 'DERIVE', 120, 0, float('NaN')),
DS('mgmt_tx_packets', 'DERIVE', 120, 0, float('NaN')),
DS('forward_bytes', 'DERIVE', 120, 0, float('NaN')),
DS('forward_packets', 'DERIVE', 120, 0, float('NaN')),
]
rra_list = [
RRA('AVERAGE', 0.5, 1, 120), # 2 hours of 1 minute samples
RRA('AVERAGE', 0.5, 5, 1440), # 5 days of 5 minute samples
RRA('AVERAGE', 0.5, 60, 720), # 30 days of 1 hour samples
RRA('AVERAGE', 0.5, 720, 730), # 1 year of 12 hour samples
]
def __init__(self, filename, node = None):
"""
Create a new RRD for a given node.
If the RRD isn't supposed to be updated, the node can be omitted.
"""
self.node = node
super().__init__(filename)
self.ensureSanity(self.ds_list, self.rra_list, step=60)
@property
def imagename(self):
return os.path.basename(self.filename).rsplit('.', 2)[0] + ".png"
def update(self):
values = {
'upstate': 1,
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'clients': float(len(self.node.get('clients', []))),
'neighbors': float(len(self.node.get('neighbors', []))),
'vpn_neighbors': float(len(self.node.vpn_neighbors)),
'loadavg': float(self.node['statistics']['loadavg']),
}
for item in ('rx', 'tx', 'mgmt_rx', 'mgmt_tx', 'forward'):
try:
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values[item + '_bytes'] = int(self.node['statistics']['traffic'][item]['bytes'])
except TypeError:
pass
try:
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values[item + '_packets'] = int(self.node['statistics']['traffic'][item]['packets'])
except TypeError:
pass
super().update(values)
def graph(self, directory, timeframe):
"""
Create a graph in the given directory. The file will be named
basename.png if the RRD file is named basename.rrd
"""
args = ['rrdtool','graph', os.path.join(directory, self.imagename),
'-s', '-' + timeframe ,
'-w', '800',
'-h', '400',
'-l', '0',
'-y', '1:1',
'DEF:clients=' + self.filename + ':clients:AVERAGE',
'VDEF:maxc=clients,MAXIMUM',
'CDEF:c=0,clients,ADDNAN',
'CDEF:d=clients,UN,maxc,UN,1,maxc,IF,*',
'AREA:c#0F0:up\\l',
'AREA:d#F00:down\\l',
'LINE1:c#00F:clients connected\\l',
]
subprocess.check_output(args)
class GlobalRRD(RRD):
ds_list = [
# Number of nodes available
DS('nodes', 'GAUGE', 120, 0, float('NaN')),
# Number of client available
DS('clients', 'GAUGE', 120, 0, float('NaN')),
]
rra_list = [
RRA('AVERAGE', 0.5, 1, 120), # 2 hours of 1 minute samples
RRA('AVERAGE', 0.5, 60, 744), # 31 days of 1 hour samples
RRA('AVERAGE', 0.5, 1440, 1780),# ~5 years of 1 day samples
]
def __init__(self, filepath):
super().__init__(filepath)
self.ensureSanity(self.ds_list, self.rra_list, step=60)
def update(self, nodeCount, clientCount):
super().update({'nodes': nodeCount, 'clients': clientCount})
def graph(self, filename, timeframe):
args = ["rrdtool", 'graph', filename,
'-s', '-' + timeframe,
'-w', '800',
'-h' '400',
'DEF:nodes=' + self.filename + ':nodes:AVERAGE',
'LINE1:nodes#F00:nodes\\l',
'DEF:clients=' + self.filename + ':clients:AVERAGE',
'LINE2:clients#00F:clients',
]
subprocess.check_output(args)