idempotenz datasource del & create, dashboard override

provision/grafana/config/datasources/ds_prom.json

-{
-    "name":"promeheus",
-    "type":"prometheus",
-    "url":"http://10.0.0.100:9090",
-    "access":"proxy",
-    "basicAuth":false
-  }
-  
\ No newline at end of file

provision/grafana/setup_grafana.sh

@@ -38,10 +38,9 @@ apitoken="${temp#\"}"
 key="$(sed -e 's/\r//' $cacertpath)"
 # set correct tlsCACert to verify signing
 json="$(jq --arg value "$key" '.secureJsonData.tlsCACert = $value' $provision/config/datasources/ds_influx.json)"
+curl -X DELETE https://localhost:3000/api/datasources/name/InfluxDB -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer $apitoken" --cacert $cacertpath 2> /dev/null
 curl -X POST https://localhost:3000/api/datasources -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer $apitoken" --data "$json" --cacert $cacertpath 2> /dev/null
 echo "Grafana datasources influx. "
-#curl -X POST https://localhost:3000/api/datasources -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer $apitoken" --data-binary "$provision/config/datasources/ds_prom.json" --cacert $cacertpath 2> /dev/null
-#echo "Grafana datasources prometheus. "
 
 # Dashboard 
 curl -X POST https://localhost:3000/api/dashboards/db -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer $apitoken" --data-binary "@$provision/config/dashboards/dash_production.json" --cacert $cacertpath 2> /dev/null