Add timestamp in nanoseconds for influxdb output

For the "Closed yesterday" query we can tell telegraf the exact timestamp
for the data.
This way we can execute the telegraf query more often per day to ensure
we get data, and also for the other queries there's no need to run this
only once a day.

Ticket: https://progress.opensuse.org/issues/121582#note-57

backlogger.py

@@ -144,6 +144,12 @@ def cycle_time(issue, status_ids):
     return cycle_time
 
 
+def _today_nanoseconds():
+    dt = datetime.today().replace(hour=0, minute=0, second=0, microsecond=0)
+    epoch = datetime.utcfromtimestamp(0)
+    return int((dt-epoch).total_seconds()*1000000000)
+
+
 def render_influxdb(data):
     output = []
 
@@ -192,6 +198,8 @@ def render_influxdb(data):
                     extra=extra,
                 )
             )
+            if status == "Resolved":
+                output[-1] += " " + str(_today_nanoseconds())
     return output
 
 if __name__ == "__main__":

tests/test_output.py

@@ -93,11 +93,12 @@ def test_influxdb(self):
                 },
             ]
         )
+        backlogger._today_nanoseconds = MagicMock(side_effect=[23])
         self.assertEqual(
             backlogger.render_influxdb(backlogger.data),
             [
                 'slo,team="Awesome\\ Team",status="In\\ Progress",title="Workable\\ Backlog" count=2',
-                'leadTime,team="Awesome\\ Team",status="Resolved",title="Workable\\ Backlog" count=2,leadTime=275.6273611111111,cycleTime=48.0,leadTimeSum=551.2547222222222,cycleTimeSum=96.0',
+                'leadTime,team="Awesome\\ Team",status="Resolved",title="Workable\\ Backlog" count=2,leadTime=275.6273611111111,cycleTime=48.0,leadTimeSum=551.2547222222222,cycleTimeSum=96.0 23',
             ],
         )