Devenv: Add telegraf with log parsing to influxdb docker block (#17546)

devenv/datasources.yaml

@@ -34,6 +34,17 @@ datasources:
     secureJsonData:
       password: grafana
 
+  - name: gdev-influxdb-telegraf
+    type: influxdb
+    access: proxy
+    database: telegraf
+    user: grafana
+    url: http://localhost:8086
+    jsonData:
+      timeInterval: "10s"
+    secureJsonData:
+      password: grafana
+
   - name: gdev-opentsdb
     type: opentsdb
     access: proxy