bundles/rspamd: add telegraf metrics

bundles/rspamd/files/telegraf-rspamd-plugin

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+from requests import get
+from sys import argv, stderr
+
+try:
+    r = get('http://127.0.0.1:11334/stat')
+    r.raise_for_status()
+
+    json = r.json()
+
+    actions = set()
+    for k, v in json['actions'].items():
+        actions.add('{}={}i'.format(k.replace(' ', '_'), v))
+
+    print('rspamd_actions {}'.format(','.join(sorted(actions))))
+
+    stats = set()
+    for i in {
+        'scanned',
+        'learned',
+        'spam_count',
+        'ham_count',
+        'connections',
+        'control_connections',
+        'pools_allocated',
+        'pools_freed',
+        'bytes_allocated',
+        'chunks_allocated',
+        'shared_chunks_allocated',
+        'chunks_freed',
+        'chunks_oversized',
+        'fragmented',
+        'total_learns',
+    }:
+        stats.add('{}={}i'.format(i, json[i]))
+
+    print('rspamd_stats {}'.format(','.join(sorted(stats))))
+
+    for domain, value in json['fuzzy_hashes'].items():
+        print('rspamd_fuzzy,domain={} value={}i'.format(domain, value))
+except Exception as e:
+    print(repr(e), file=stderr)