time-series-analytics: Updated kapacitor version (open-edge-platform#1166)

This PR updates the Kapacitor version from 1.7.7 to 1.8.2 and adapts the temperature classifier UDF to work with the new version's API changes. The key change is migrating from iterating over fieldsDouble key-value pairs to using dictionary-style access, which aligns with Kapacitor 1.8.2's updated interface.

Signed-off-by: Pooja Kumbharkar <[email protected]>

Author: pooja-intel

microservices/time-series-analytics/docker/docker-compose.yml

@@ -10,7 +10,7 @@ services:
       context: $PWD/../
       dockerfile: $PWD/../Dockerfile
       args:
-        KAPACITOR_VERSION: 1.7.7
+        KAPACITOR_VERSION: 1.8.2
         TIMESERIES_UID: ${TIMESERIES_UID}
         TIMESERIES_USER_NAME: ${TIMESERIES_USER_NAME}
         PYTHON_VERSION: "3.10"

microservices/time-series-analytics/udfs/temperature_classifier.py

@@ -52,10 +52,9 @@ def begin_batch(self, begin_req):
 
     def point(self, point):
         temp = None
-        for kv in point.fieldsDouble:
-            if kv.key == "temperature":
-                temp = kv.value
-                break
+        if "temperature" in point.fieldsDouble:
+            temp = point.fieldsDouble["temperature"]
+            
         if temp is None or isinstance(temp, (int, float)) is False:
             logger.error(f"Invalid temperature data received - {temp}")
         else: