125 lines
3.4 KiB
Python
125 lines
3.4 KiB
Python
#!/usr/bin/env python
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""" Utility to scan a fedmsg setup for port availability.
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Reports what percentage of fedmsg endpoints are bound and ready.
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"""
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import base64
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import collections
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import socket
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import sys
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import time
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import fedmsg.config
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config = fedmsg.config.load_config()
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timeout = 0.2
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expected = '/wAAAAAAAAABfw=='
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active = collections.defaultdict(list)
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inactive = collections.defaultdict(list)
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for_collectd = 'verbose' not in sys.argv
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def info(content="\n"):
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if not for_collectd:
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sys.stdout.write(content)
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sys.stdout.flush()
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def do_scan():
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for i, item in enumerate(config['endpoints'].items()):
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name, endpoints = item
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for endpoint in endpoints:
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if not endpoint.startswith('tcp://'):
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raise ValueError("Don't know how to deal with %r" % endpoint)
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endpoint = endpoint[len('tcp://'):].split(':')
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connection = None
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try:
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connection = socket.create_connection(endpoint, timeout)
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actual = base64.b64encode(connection.recv(10))
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if actual != expected:
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inactive[name].append((
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endpoint, "%r is not %r" % (actual, expected)))
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info("F")
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else:
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active[name].append((endpoint, "all active"))
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info(".")
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except socket.error as e:
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inactive[name].append((endpoint, str(e)))
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info("F")
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if connection:
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connection.close()
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info()
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if 'verbose' in sys.argv:
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import pprint;
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pprint.pprint(dict(active))
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pprint.pprint(dict(inactive))
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header = "".join([
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"name".center(29),
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"active".rjust(8),
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"inactive".rjust(9),
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"percent".rjust(9),
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"reason".center(32),
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])
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info()
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info(header + "\n")
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info("-" * len(header) + "\n")
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active_n_total, inactive_n_total = 0, 0
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for name in sorted(config['endpoints']):
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active_n = len(active[name])
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inactive_n = len(inactive[name])
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active_n_total += active_n
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inactive_n_total += inactive_n
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total = active_n + inactive_n
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percent = ""
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if total:
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percent = "%%%0.1f" % (100 * float(active_n) / total)
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reasons = set([reason for _, reason in inactive[name]])
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info(name.rjust(29))
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info(str(active_n).rjust(8))
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info(str(inactive_n).rjust(9))
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info(percent.rjust(9))
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info(", ".join(reasons).rjust(32) + "\n")
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info("-" * len(header) + "\n")
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info(" total active: %i\n" % active_n_total)
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info("total inactive: %i\n" % inactive_n_total)
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value = 100 * float(active_n_total) / (active_n_total + inactive_n_total)
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info("percent active: %%%0.1f\n" % value)
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return value
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if not for_collectd:
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do_scan()
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else:
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interval = 10
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host = socket.getfqdn()
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while True:
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start = timestamp = time.time()
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value = do_scan()
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stop = time.time()
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delta = stop - start
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output = (
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"PUTVAL "
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"{host}/fedmsg/percent "
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"interval={interval} "
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"{timestamp}:{value}"
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).format(
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host=host,
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interval=interval,
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timestamp=int(timestamp),
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value=value)
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print(output)
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if interval - delta > 0:
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time.sleep(interval - delta)
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