4 files changed, 200 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/dnsdist/Makefile.inc b/collectors/python.d.plugin/dnsdist/Makefile.inc
new file mode 100644
index 000000000..a53f518f0
--- /dev/null
+++ b/collectors/python.d.plugin/dnsdist/Makefile.inc
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# THIS IS NOT A COMPLETE Makefile
+# IT IS INCLUDED BY ITS PARENT'S Makefile.am
+# IT IS REQUIRED TO REFERENCE ALL FILES RELATIVE TO THE PARENT
+
+# install these files
+dist_python_DATA       += dnsdist/dnsdist.chart.py
+dist_pythonconfig_DATA += dnsdist/dnsdist.conf
+
+# do not install these files, but include them in the distribution
+dist_noinst_DATA       += dnsdist/README.md dnsdist/Makefile.inc
+
diff --git a/collectors/python.d.plugin/dnsdist/README.md b/collectors/python.d.plugin/dnsdist/README.md
new file mode 100644
index 000000000..b646ae27c
--- /dev/null
+++ b/collectors/python.d.plugin/dnsdist/README.md
@@ -0,0 +1,54 @@
+# dnsdist
+
+Module monitor dnsdist performance and health metrics.
+
+Following charts are drawn:
+
+1. **Response latency**
+ * latency-slow
+ * latency100-1000
+ * latency50-100
+ * latency10-50
+ * latency1-10
+ * latency0-1
+
+2. **Cache performance**
+ * cache-hits
+ * cache-misses
+
+3. **ACL events**
+ * acl-drops
+ * rule-drop
+ * rule-nxdomain
+ * rule-refused
+
+4. **Noncompliant data**
+ * empty-queries
+ * no-policy
+ * noncompliant-queries
+ * noncompliant-responses
+
+5. **Queries**
+ * queries
+ * rdqueries
+ * rdqueries
+
+6. **Health**
+ * downstream-send-errors
+ * downstream-timeouts
+ * servfail-responses
+ * trunc-failures
+
+### configuration
+
+```yaml
+localhost:
+  name : 'local'
+  url  : 'http://127.0.0.1:5053/jsonstat?command=stats'
+  user : 'username'
+  pass : 'password'
+  header:
+    X-API-Key: 'dnsdist-api-key'
+```
+
+---
diff --git a/collectors/python.d.plugin/dnsdist/dnsdist.chart.py b/collectors/python.d.plugin/dnsdist/dnsdist.chart.py
new file mode 100644
index 000000000..1aff3f803
--- /dev/null
+++ b/collectors/python.d.plugin/dnsdist/dnsdist.chart.py
@@ -0,0 +1,133 @@
+# -*- coding: utf-8 -*-
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from json import loads
+
+from bases.FrameworkServices.UrlService import UrlService
+
+
+ORDER = [
+    'queries',
+    'queries_dropped',
+    'packets_dropped',
+    'answers',
+    'backend_responses',
+    'backend_commerrors',
+    'backend_errors',
+    'cache',
+    'servercpu',
+    'servermem',
+    'query_latency',
+    'query_latency_avg'
+]
+
+
+CHARTS = {
+    'queries': {
+        'options': [None, 'Client queries received', 'queries/s', 'queries', 'dnsdist.queries', 'line'],
+        'lines': [
+            ['queries', 'all', 'incremental'],
+            ['rdqueries', 'recursive', 'incremental'],
+            ['empty-queries', 'empty', 'incremental']
+        ]
+    },
+    'queries_dropped': {
+        'options': [None, 'Client queries dropped', 'queries/s', 'queries', 'dnsdist.queries_dropped', 'line'],
+        'lines': [
+            ['rule-drop', 'rule drop', 'incremental'],
+            ['dyn-blocked', 'dynamic block', 'incremental'],
+            ['no-policy', 'no policy', 'incremental'],
+            ['noncompliant-queries', 'non compliant', 'incremental']
+        ]
+    },
+    'packets_dropped': {
+        'options': [None, 'Packets dropped', 'packets/s', 'packets', 'dnsdist.packets_dropped', 'line'],
+        'lines': [
+            ['acl-drops', 'acl', 'incremental']
+        ]
+    },
+    'answers': {
+        'options': [None, 'Answers statistics', 'answers/s', 'answers', 'dnsdist.answers', 'line'],
+        'lines': [
+            ['self-answered', 'self answered', 'incremental'],
+            ['rule-nxdomain', 'nxdomain', 'incremental', -1],
+            ['rule-refused', 'refused', 'incremental', -1],
+            ['trunc-failures', 'trunc failures', 'incremental', -1]
+        ]
+    },
+    'backend_responses': {
+        'options': [None, 'Backend responses', 'responses/s', 'backends', 'dnsdist.backend_responses', 'line'],
+        'lines': [
+            ['responses', 'responses', 'incremental']
+        ]
+    },
+    'backend_commerrors': {
+        'options': [None, 'Backend Communication Errors', 'errors/s', 'backends', 'dnsdist.backend_commerrors', 'line'],
+        'lines': [
+            ['downstream-send-errors', 'send errors', 'incremental']
+        ]
+    },
+    'backend_errors': {
+        'options': [None, 'Backend error responses', 'responses/s', 'backends', 'dnsdist.backend_errors', 'line'],
+        'lines': [
+            ['downstream-timeouts', 'timeout', 'incremental'],
+            ['servfail-responses', 'servfail', 'incremental'],
+            ['noncompliant-responses', 'non compliant', 'incremental']
+        ]
+    },
+    'cache': {
+        'options': [None, 'Cache performance', 'answers/s', 'cache', 'dnsdist.cache', 'area'],
+        'lines': [
+            ['cache-hits', 'hits', 'incremental'],
+            ['cache-misses', 'misses', 'incremental', -1]
+        ]
+    },
+    'servercpu': {
+        'options': [None, 'DNSDIST server CPU utilization', 'ms/s', 'server', 'dnsdist.servercpu', 'stacked'],
+        'lines': [
+            ['cpu-sys-msec', 'system state', 'incremental'],
+            ['cpu-user-msec', 'user state', 'incremental']
+        ]
+    },
+    'servermem': {
+        'options': [None, 'DNSDIST server memory utilization', 'MB', 'server', 'dnsdist.servermem', 'area'],
+        'lines': [
+            ['real-memory-usage', 'memory usage', 'absolute', 1, 1048576]
+        ]
+    },
+    'query_latency': {
+        'options': [None, 'Query latency', 'queries/s', 'latency', 'dnsdist.query_latency', 'stacked'],
+        'lines': [
+            ['latency0-1', '1ms', 'incremental'],
+            ['latency1-10', '10ms', 'incremental'],
+            ['latency10-50', '50ms', 'incremental'],
+            ['latency50-100', '100ms', 'incremental'],
+            ['latency100-1000', '1sec', 'incremental'],
+            ['latency-slow', 'slow', 'incremental']
+        ]
+    },
+    'query_latency_avg': {
+        'options': [None, 'Average latency for the last N queries', 'ms/query', 'latency',
+                    'dnsdist.query_latency_avg', 'line'],
+        'lines': [
+            ['latency-avg100', '100', 'absolute'],
+            ['latency-avg1000', '1k', 'absolute'],
+            ['latency-avg10000', '10k', 'absolute'],
+            ['latency-avg1000000', '1000k', 'absolute']
+        ]
+    }
+}
+
+
+class Service(UrlService):
+    def __init__(self, configuration=None, name=None):
+        UrlService.__init__(self, configuration=configuration, name=name)
+        self.order = ORDER
+        self.definitions = CHARTS
+
+    def _get_data(self):
+        data = self._get_raw_data()
+        if not data:
+            return None
+
+        return loads(data)
diff --git a/conf.d/python.d/dnsdist.conf b/collectors/python.d.plugin/dnsdist/dnsdist.conf
index aec58b8e1..aec58b8e1 100644
--- a/conf.d/python.d/dnsdist.conf
+++ b/collectors/python.d.plugin/dnsdist/dnsdist.conf