bundlewrap/bundles/postfix/files/postfix-telegraf-queue

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#!/usr/bin/env python3
from json import loads
from subprocess import check_output
queue_counts = {}
queue_json = check_output(['sudo', '/usr/sbin/postqueue', '-j'])
for line in queue_json.splitlines():
j = loads(line.decode('UTF-8'))
queue_counts.setdefault(j['queue_name'], 0)
queue_counts[j['queue_name']] += 1
for queue in ('incoming', 'active', 'deferred', 'corrupt', 'hold'):
print('postfix_queue,status={} count={}i'.format(queue, queue_counts.get(queue, 0)))