exposing ES index as a property

configuration.properties

@@ -0,0 +1,2 @@
+ES_INDEX = ip-90-147-167-25.ct1.garrservices.it
+# ES_INDEX = 192.168.100.26,192.168.100.21,192.168.100.29,192.168.100.25,192.168.100.70,192.168.100.71,192.168.100.72,192.168.100.73,192.168.100.44

es_connector.py

@@ -2,10 +2,17 @@ from elasticsearch import Elasticsearch
 from elasticsearch_dsl import *
 import logging
 
-log = logging.getLogger("ES connector")
+log = logging.getLogger('ES connector')
 log.setLevel(logging.INFO)
 
-ES_HOST = "ip-90-147-167-25.ct1.garrservices.it"
+def load_properties():
+    with open('configuration.properties') as f:
+        p = {}
+        for line in f:
+            if not line.startswith("#"):
+                data = line.strip().split("=")
+                p[data[0].strip()] = data[1].strip()
+        return p
 
 class ESObject(object):
     def __init__(self, id, pid, type, title, abstract, propagated_abstract):
@@ -25,7 +32,7 @@ class ESResponse(object):
 
 class ESConnector(object):
     def __init__(self):
-        self.index_host = ES_HOST
+        self.index_host = [x.strip() for x in load_properties()['ES_INDEX'].split(',')]
         self.client = Elasticsearch(hosts=self.index_host, timeout=600000)
 
     def query_after(self, query_string=None, start=0, i='propagation-after'):

main.py

@@ -6,10 +6,10 @@ from starlette.responses import FileResponse
 from fastapi import FastAPI, Form
 from es_connector import ESConnector
 
-log = logging.getLogger("TPDL2020 webapp")
+log = logging.getLogger('TPDL2020 webapp')
 log.setLevel(logging.INFO)
 
-log.info("TPDL2020 Webapp (re)started")
+log.info('TPDL2020 Webapp (re)started')
 
 _CURDIR = os.path.dirname(os.path.abspath(__file__))
 
@@ -32,7 +32,7 @@ def root():
 @app.get('/api/query/')
 def query_get(q='*', s:int=0, i=None):
     try:
-        log.info("Executing query={q} start={s}".format(q=q, s=s))
+        log.info('Executing query={q} start={s}'.format(q=q, s=s))
         result = es_connector.query_after(q, s, i)
         return result
     except Exception as e: