Fix bug 1246

Remove hardcoded hostname in dashboarder.py

Additionally, I commented out two lines in
osm_mon/collector/vnf_collectors/juju.py because flake8 was complaining
about those two not being used

Change-Id: I44c7b083fe99ee910eb4adc0da7d6a01aac5b979
Signed-off-by: David Garcia <david.garcia@canonical.com>
diff --git a/osm_mon/collector/vnf_collectors/juju.py b/osm_mon/collector/vnf_collectors/juju.py
index 30f4586..0e2fac2 100644
--- a/osm_mon/collector/vnf_collectors/juju.py
+++ b/osm_mon/collector/vnf_collectors/juju.py
@@ -40,8 +40,8 @@
         super().__init__(config)
         self.common_db = CommonDbClient(config)
         self.loop = asyncio.get_event_loop()
-        host = config.get("vca", "host")
-        port = config.get("vca", "port") if "port" in config.conf["vca"] else 17070
+        # host = config.get("vca", "host")
+        # port = config.get("vca", "port") if "port" in config.conf["vca"] else 17070
 
         # Backwards compatibility
         if "cacert" in config.conf["vca"]:
diff --git a/osm_mon/dashboarder/dashboarder.py b/osm_mon/dashboarder/dashboarder.py
index 8b16988..3b454b8 100644
--- a/osm_mon/dashboarder/dashboarder.py
+++ b/osm_mon/dashboarder/dashboarder.py
@@ -25,6 +25,7 @@
 import time
 import socket
 import asyncio
+from urllib.parse import urlparse
 
 from osm_mon.dashboarder.service import DashboarderService
 from osm_mon.core.config import Config
@@ -119,9 +120,10 @@
 
     def dashboard_forever(self):
         log.debug('dashboard_forever')
+        grafana_parsed_uri = urlparse(self.conf.get('grafana', 'url'))
         while True:
             try:
-                socket.gethostbyname("grafana")
+                socket.gethostbyname(grafana_parsed_uri.hostname)
                 log.debug("Dashboard backend is running")
             except socket.error:
                 log.debug("Dashboard backend is not available")