fix(signal-processing): Use different placeholder in NiFi flow

Author: Techassi

demos/signal-processing/DownloadAndWriteToDB.json

@@ -741,7 +741,7 @@
           "kerberos-credentials-service": null,
           "dbcp-max-conn-lifetime": "-1",
           "Validation-query": "select count(*) from conditions;",
-          "Database Connection URL": "jdbc:postgresql://postgresql-timescaledb.{{ NAMESPACE }}.svc.cluster.local:5432/tsdb",
+          "Database Connection URL": "jdbc:postgresql://postgresql-timescaledb.[[ NAMESPACE ]].svc.cluster.local:5432/tsdb",
           "dbcp-time-between-eviction-runs": "-1",
           "Database User": "admin",
           "kerberos-user-service": null,

demos/signal-processing/create-nifi-ingestion-job.yaml

@@ -94,7 +94,7 @@ data:
 
     filename = "/tmp/DownloadAndWriteToDB.json"
     with open(filename, "w") as f:
-        f.write(response.text.replace("{{ NAMESPACE }}", os.environ["NAMESPACE"]))
+        f.write(response.text.replace("[[ NAMESPACE ]]", os.environ["NAMESPACE"]))
 
     pg_id = get_root_pg_id()