magic-wormhole-transit-relay/misc/munin/wormhole_transit_active

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#! /usr/bin/env python
"""
Use the following in /etc/munin/plugin-conf.d/wormhole :
[wormhole_*]
env.usagedb /path/to/your/wormhole/server/usage.sqlite
"""
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from __future__ import print_function
import os, sys, time, sqlite3
CONFIG = """\
graph_title Magic-Wormhole Transit Active Channels
graph_vlabel Channels
graph_category network
waiting.label Transit Waiting
waiting.draw LINE1
waiting.type GAUGE
connected.label Transit Connected
connected.draw LINE1
connected.type GAUGE
"""
if len(sys.argv) > 1 and sys.argv[1] == "config":
print(CONFIG.rstrip())
sys.exit(0)
dbfile = os.environ["usagedb"]
assert os.path.exists(dbfile)
db = sqlite3.connect(dbfile)
MINUTE = 60.0
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updated,waiting,connected = db.execute("SELECT `updated`,`waiting`,`connected`"
" FROM `current`").fetchone()
if time.time() > updated + 5*MINUTE:
sys.exit(1) # expired
print("waiting.value", waiting)
print("connected.value", connected)