metric token support added for retrieve metrics function

aviso-server/monitoring/aviso_monitoring/reporter/opsview_reporter.py

@@ -24,6 +24,9 @@ def __init__(self, config: Config, msg_receiver=None):
         self.monitor_servers = config.monitor_servers
         self.msg_receiver = msg_receiver
         self.token = {}
+        if config.kube_state_metrics["ssl_enabled"]:
+            self.metric_ssl_enabled = True
+            self.metric_token = config.kube_state_metrics["token"]
 
     def ms_authenticate(self, m_server):
         """
@@ -199,16 +202,19 @@ def aggregate_unique_counter_tlms(tlms):
         }
         return agg_tlm
 
-    def retrieve_metrics(metric_servers, req_timeout):
+    def retrieve_metrics(self, metric_servers, req_timeout):
         """
         This methods retrieves the metrics provided by specific metric servers using a Prometheus interface.
         """
         raw_tlms = {}
         for u in metric_servers:
             url = u + "/metrics"
             logger.debug(f"Retrieving metrics from {url}...")
+            headers = {}
             try:
-                resp = requests.get(url, verify=False, timeout=req_timeout)
+                if self.metric_ssl_enabled:
+                    headers["Authorization"] = f"Bearer {self.metric_token}"
+                resp = requests.get(url, verify=False, timeout=req_timeout, headers=headers)
             except Exception as e:
                 logger.exception(f"Not able to get metrics from {url}, error {e}")
                 raw_tlms[u] = None