1 files changed, 105 insertions, 0 deletions
diff --git a/python.d/chrony.chart.py b/python.d/chrony.chart.py
new file mode 100644
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--- /dev/null
+++ b/python.d/chrony.chart.py
@@ -0,0 +1,105 @@
+# -*- coding: utf-8 -*-
+# Description: chrony netdata python.d module
+# Author: Dominik Schloesser (domschl)
+
+from base import ExecutableService
+
+# default module values (can be overridden per job in `config`)
+# update_every = 10
+priority = 60000
+retries = 10
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['system', 'offsets', 'stratum', 'root', 'frequency', 'residualfreq', 'skew']
+
+CHARTS = {
+    # id: {
+    #     'options': [name, title, units, family, context, charttype],
+    #     'lines': [
+    #         [unique_dimension_name, name, algorithm, multiplier, divisor]
+    #     ]}
+    'system': {
+        'options': [None, "Chrony System Time Deltas", "microseconds", 'system', 'chrony.system', 'area'],
+        'lines': [
+            ['timediff',   'system time', 'absolute', 1, 1000]
+        ]},
+    'offsets': {
+        'options': [None, "Chrony System Time Offsets", "microseconds", 'system', 'chrony.offsets', 'area'],
+        'lines': [
+            ['lastoffset', 'last offset', 'absolute', 1, 1000],
+            ['rmsoffset',  'RMS offset',  'absolute', 1, 1000]
+        ]},
+    'stratum': {
+        'options': [None, "Chrony Stratum", "stratum", 'root', 'chrony.stratum', 'line'],
+        'lines': [
+            ['stratum', None, 'absolute', 1, 1]
+        ]},
+    'root': {
+        'options': [None, "Chrony Root Delays", "milliseconds", 'root', 'chrony.root', 'line'],
+        'lines': [
+            ['rootdelay',      'delay',      'absolute', 1, 1000000],
+            ['rootdispersion', 'dispersion', 'absolute', 1, 1000000]
+        ]},
+    'frequency': {
+        'options': [None, "Chrony Frequency", "ppm", 'frequencies', 'chrony.frequency', 'area'],
+        'lines': [
+            ['frequency', None, 'absolute', 1, 1000]
+        ]},
+    'residualfreq': {
+        'options': [None, "Chrony Residual frequency", "ppm", 'frequencies', 'chrony.residualfreq', 'area'],
+        'lines': [
+            ['residualfreq', 'residual frequency', 'absolute', 1, 1000]
+        ]},
+    'skew': {
+        'options': [None, "Chrony Skew, error bound on frequency", "ppm", 'frequencies', 'chrony.skew', 'area'],
+        'lines': [
+            ['skew', None, 'absolute', 1, 1000]
+        ]}
+}
+
+CHRONY = [('Frequency', 'frequency', 1e3),
+          ('Last offset', 'lastoffset', 1e9),
+          ('RMS offset', 'rmsoffset', 1e9),
+          ('Residual freq', 'residualfreq', 1e3),
+          ('Root delay', 'rootdelay', 1e9),
+          ('Root dispersion', 'rootdispersion', 1e9),
+          ('Skew', 'skew', 1e3),
+          ('Stratum', 'stratum', 1),
+          ('System time', 'timediff', 1e9)]
+
+
+class Service(ExecutableService):
+    def __init__(self, configuration=None, name=None):
+        ExecutableService.__init__(
+            self, configuration=configuration, name=name)
+        self.command = "chronyc -n tracking"
+        self.order = ORDER
+        self.definitions = CHARTS
+
+    def _get_data(self):
+        """
+        Format data received from shell command
+        :return: dict
+        """
+        raw_data = self._get_raw_data()
+        if not raw_data:
+            return None
+
+        raw_data = (line.split(':', 1) for line in raw_data)
+        parsed, data = dict(), dict()
+
+        for line in raw_data:
+            try:
+                key, value = (l.strip() for l in line)
+            except ValueError:
+                continue
+            if value:
+                parsed[key] = value.split()[0]
+
+        for key, dim_id, multiplier in CHRONY:
+            try:
+                data[dim_id] = int(float(parsed[key]) * multiplier)
+            except (KeyError, ValueError):
+                continue
+
+        return data or None