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@@ -1,6 +1,6 @@
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#!/usr/bin/env python3
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#
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-# Copyright (c) 2017-2019 Joe Clarke <jclarke@cisco.com>
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+# Copyright (c) 2017-2020 Joe Clarke <jclarke@cisco.com>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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@@ -25,6 +25,8 @@
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# SUCH DAMAGE.
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+from builtins import str
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+from builtins import range
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import os
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import re
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import sys
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@@ -34,70 +36,60 @@ import paramiko
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import CLEUCreds
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-CACHE_FILE = '/home/jclarke/mac_counts.dat'
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-CACHE_FILE_TMP = CACHE_FILE + '.tmp'
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+CACHE_FILE = "/home/jclarke/mac_counts.dat"
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+CACHE_FILE_TMP = CACHE_FILE + ".tmp"
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commands = [
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- {
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- 'command': 'show mac address-table count | inc Dynamic Address Count',
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- 'pattern': r'Dynamic Address Count:\s+(\d+)',
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- 'metric': 'totalMacs',
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- 'devices': ['core1-l3c', 'core2-l3c']
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- },
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- {
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- 'command': 'show mac address-table dynamic | inc Total',
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- 'pattern': r'Total.*: (\d+)',
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- 'metric': 'totalMacs',
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- 'devicePatterns': [
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- {
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- 'pattern': '10.127.0.{}',
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- 'range': {
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- 'min': 1,
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- 'max': 60
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- }
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- }
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- ]
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- },
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- {
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- 'command': 'show ip arp summary | inc IP ARP',
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- 'pattern': r'(\d+) IP ARP entries',
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- 'metric': 'arpEntries',
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- 'devicePatterns': [
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- {
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- 'pattern': '10.127.0.{}',
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- 'range': {
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- 'min': 1,
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- 'max': 60
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- }
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- }
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- ]
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- }
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+ {
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+ "command": "show mac address-table count | inc Dynamic Address Count",
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+ "pattern": r"Dynamic Address Count:\s+(\d+)",
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+ "metric": "totalMacs",
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+ "devices": ["core1-l3c", "core2-l3c"],
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+ },
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+ {
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+ "command": "show mac address-table dynamic | inc Total",
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+ "pattern": r"Total.*: (\d+)",
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+ "metric": "totalMacs",
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+ "devicePatterns": [{"pattern": "10.127.0.{}", "range": {"min": 1, "max": 60}}],
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+ },
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+ {
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+ "command": "show ip arp summary | inc IP ARP",
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+ "pattern": r"(\d+) IP ARP entries",
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+ "metric": "arpEntries",
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+ "devicePatterns": [{"pattern": "10.127.0.{}", "range": {"min": 1, "max": 60}}],
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+ },
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]
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+def send_command(chan, command):
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+ chan.sendall(command + "\n")
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+ i = 0
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+ output = ""
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+ while i < 10:
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+ if chan.recv_ready():
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+ break
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+ i += 1
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+ time.sleep(i * 0.5)
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+ while chan.recv_ready():
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+ r = chan.recv(131070).decode("utf-8")
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+ output = output + r
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+
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+ return output
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+
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+
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def get_results(ssh_client, ip, command, pattern, metric):
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- response = ''
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+ response = ""
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try:
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- ssh_client.connect(ip, username=CLEUCreds.NET_USER, password=CLEUCreds.NET_PASS,
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- timeout=5, allow_agent=False, look_for_keys=False)
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+ ssh_client.connect(ip, username=CLEUCreds.NET_USER, password=CLEUCreds.NET_PASS, timeout=5, allow_agent=False, look_for_keys=False)
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chan = ssh_client.invoke_shell()
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- output = ''
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+ output = ""
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try:
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- chan.sendall('term length 0\n')
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- chan.sendall('term width 0\n')
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- chan.sendall('{}\n'.format(command))
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- j = 0
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- while j < 10:
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- if chan.recv_ready():
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- break
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- time.sleep(.5)
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- j += 1
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- while chan.recv_ready():
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- output += chan.recv(65535)
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+ send_command(chan, "term length 0")
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+ send_command(chan, "term width 0")
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+ output = send_command(chan, command)
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except Exception as ie:
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response = '{}{{idf="{}"}}'.format(metric, ip)
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- sys.stderr.write(
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- 'Failed to get MACs from {}: {}\n'.format(ip, ie))
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+ sys.stderr.write("Failed to get MACs from {}: {}\n".format(ip, ie))
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return response
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m = re.search(pattern, output)
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@@ -107,8 +99,8 @@ def get_results(ssh_client, ip, command, pattern, metric):
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response = '{}{{idf="{}"}} 0'.format(metric, ip)
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except Exception as e:
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ssh_client.close()
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- sys.stderr.write('Failed to connect to {}: {}\n'.format(ip, e))
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- return ''
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+ sys.stderr.write("Failed to connect to {}: {}\n".format(ip, e))
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+ return ""
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ssh_client.close()
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@@ -123,26 +115,33 @@ def get_metrics():
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ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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for command in commands:
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- if 'devices' in command:
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- for device in command['devices']:
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- response.append(get_results(ssh_client, device, command['command'], command['pattern'], command['metric']))
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+ if "devices" in command:
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+ for device in command["devices"]:
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+ response.append(get_results(ssh_client, device, command["command"], command["pattern"], command["metric"]))
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else:
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- for pattern in command['devicePatterns']:
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- if 'range' in pattern:
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- for i in range(pattern['range']['min'], pattern['range']['max']):
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- response.append(get_results(ssh_client, pattern['pattern'].format(str(i)), command[
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- 'command'], command['pattern'], command['metric']))
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+ for pattern in command["devicePatterns"]:
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+ if "range" in pattern:
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+ for i in range(pattern["range"]["min"], pattern["range"]["max"]):
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+ response.append(
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+ get_results(
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+ ssh_client, pattern["pattern"].format(str(i)), command["command"], command["pattern"], command["metric"]
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+ )
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+ )
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else:
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- for sub in pattern['subs']:
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- response.append(get_results(ssh_client, pattern['pattern'].format(sub), command[
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- 'command'], command['pattern'], command['metric']))
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+ for sub in pattern["subs"]:
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+ response.append(
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+ get_results(
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+ ssh_client, pattern["pattern"].format(sub), command["command"], command["pattern"], command["metric"]
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+ )
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+ )
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return response
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-if __name__ == '__main__':
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- response=get_metrics()
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- fd=open(CACHE_FILE_TMP, 'w')
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+if __name__ == "__main__":
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+ response = get_metrics()
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+
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+ fd = open(CACHE_FILE_TMP, "w")
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json.dump(response, fd, indent=4)
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fd.close()
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