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-rwxr-xr-xpython/stats_influxdb.py79
1 files changed, 79 insertions, 0 deletions
diff --git a/python/stats_influxdb.py b/python/stats_influxdb.py
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+#!/usr/bin/env python3
+
+"""Simple program for exporting statistics from Knot DNS to influxdb."""
+
+import libknot.control
+import io
+import json
+import os
+import time
+
+# Configuration.
+#libknot.control.load_lib("../src/.libs/libknot.so")
+ctl_socket = "/tmp/knot.sock"
+ctl_timeout = 2
+# InfluxDB parameters.
+host = "217.31.192.164"
+port = "8086"
+db = "KnotDNS"
+instance = "Knot"
+# Send metrics every N seconds.
+send_interval = 5
+
+
+def send():
+ # Connect to Knot server.
+ ctl = libknot.control.KnotCtl()
+ ctl.connect(ctl_socket)
+ ctl.set_timeout(ctl_timeout)
+
+ # Get global metrics.
+ global_stats = dict()
+ try:
+ ctl.send_block(cmd="stats", flags="F")
+ global_stats = ctl.receive_stats()
+ except:
+ pass
+
+ # Get zone metrics.
+ zone_stats = dict()
+ try:
+ ctl.send_block(cmd="zone-stats", flags="F")
+ zone_stats = ctl.receive_stats()
+ except:
+ pass
+
+ # Disconnect from the server.
+ ctl.send(libknot.control.KnotCtlType.END)
+ ctl.close()
+
+ # Prepare the metrics to publish.
+ output = io.StringIO()
+
+ stats = {**global_stats, **zone_stats}
+ timestamp = str(int(time.time()))
+
+ for metric in stats["server"]:
+ print("server,instance=" + instance + ",metric=" + metric + " value=" +
+ stats["server"][metric] + " " + timestamp, file=output)
+
+ for group in stats["mod-stats"]:
+ for metric in stats["mod-stats"][group]:
+ print(group + ",instance=" + instance + ",metric=" + metric +
+ " value=" + stats["mod-stats"][group][metric] + " " + timestamp,
+ file=output)
+
+ # Publish the metrics.
+ os.system("curl -i -XPOST 'http://%s:%s/write?db=%s&precision=s' --data-binary '%s'"
+ % (host, port, db, output.getvalue()))
+
+
+print("%s: Graphite sender - Server Start - %s:%s" %
+ (time.asctime(), host, port))
+
+try:
+ while(True):
+ send()
+ time.sleep(send_interval)
+except KeyboardInterrupt:
+ pass